service or maintenance can cause property damage, injury,
or loss of life. For assistance or additional information,
consult a qualied installer, service agency or the gas
supplier. This boiler requires a special venting system.
Read these instructions carefully before installing.
P.O. Box 14818 3633 I. Street
Philadelphia, PA 19134
www.crownboiler.com
Page 2
IMPORTANT INFORMATION - READ CAREFULLY
NOTE: The equipment shall be installed in accordance with those installation regulations enforced in the area where the
installation is to be made. These regulations shall be carefully followed in all cases. Authorities having jurisdiction
shall be consulted before installations are made.
All wiring on boilers installed in the USA shall be made in accordance with the National Electrical Code and/or local regulations.
All wiring on boilers installed in Canada shall be made in accordance with the Canadian Electrical Code and/or local regulations.
The City of New York requires a Licensed Master Plumber supervise the installation of this product.
The Massachusetts Board of Plumbers and Gas Fitters has approved the Phantom Series boiler. See the Massachusetts Board of
Plumbers and Gas Fitters website, http://license.reg.state.ma.us/pubLic/pl_products/pb_pre_form.asp for the latest Approval
Code or ask your local Sales Representative.
The Commonwealth of Massachusetts requires this product to be installed by a Licensed Plumber or Gas Fitter.
The following terms are used throughout this manual to bring attention to the presence of hazards of various risk levels, or to
important information concerning product life.
DANGER
Indicates an imminently hazardous situation
which, if not avoided, will result in death, serious
injury or substantial property damage.
Indicates a potentially hazardous situation which,
if not avoided, may result in moderate or minor
injury or property damage.
CAUTION
NOTICE
WARNING
Indicates a potentially hazardous situation which,
if not avoided, could result in death, serious injury
or substantial property damage.
Indicates special instructions on installation,
operation, or maintenance which are important
but not related to personal injury hazards.
DANGER
DO NOT store or use gasoline or other ammable vapors or liquids in the vicinity of this or any other
appliance.
If you smell gas vapors, NO NOT try to operate any appliance - DO NOT touch any electrical switch or use
any phone in the building. Immediately, call the gas supplier from a remotely located phone. Follow the gas
supplier’s instructions or if the supplier is unavailable, contact the re department.
2
Page 3
Special Installation Requirements for Massachusetts
A. For all sidewall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or
in part for residential purposes and where the sidewall exhaust vent termination is less than seven (7) feet above grade, the
following requirements shall be satised:
1. If there is no carbon monoxide detector with an alarm already installed in compliance with the most current edition of
NFPA 720, NFPA 70 and the Massachusetts State Building Code in the residential unit served by the sidewall horizontally
vented gas fueled equipment, a battery operated carbon monoxide detector with an alarm shall be installed in compliance
with the most current edition of NFPA 720, NFPA 70 and the Massachusetts State Building Code.
2. In addition to the above requirements, if there is not one already present, a carbon monoxide detector with an alarm
and a battery back-up shall be installed and located in accordance with the installation requirements supplied with the
detector on the oor level where the gas equipment is installed. The carbon monoxide detector with an alarm shall
comply with 527 CMR, ANSI/UL 2034 Standards or CSA 6.19 and the most current edition of NFPA 720. In the event
that the requirements of this subdivision can not be met at the time of the completion of the installation of the equipment,
the installer shall have a period of thirty (30) days to comply with this requirement; provided, however, that during
said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed in compliance
with the most current edition of NFPA 720, NFPA 70 and the Massachusetts State Building Code. In the event that the
sidewall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the carbon monoxide detector
may be installed on the next adjacent habitable oor level. Such detector may be a battery operated carbon monoxide
detector with an alarm and shall be installed in compliance with the most current edition of NFPA 720, NFPA 70 and the
Massachusetts State Building Code.
3. A metal or plastic identication plate shall be permanently mounted to the exterior of the building at a minimum height
of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled
heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
4. A nal inspection by the state or local gas inspector of the sidewall horizontally vented equipment shall not be performed
until proof is provided that the state or local electrical inspector having jurisdiction has granted a permit for installation of
carbon monoxide detectors and alarms as required above.
B. EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a) 1 through 4:
1. The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of NFPA
54 as adopted by the Board; and
2. Product Approved sidewall horizontally vented gas fueled equipment installed in a room or structure separate from the
dwelling, building or structure used in whole or in part for residential purposes.
C. When the manufacturer of Product Approved sidewall horizontally vented gas equipment provides a venting system design
or venting system components with the equipment, the instructions for installation of the equipment and the venting system
shall include:
1. A complete parts list for the venting system design or venting system; and
2. Detailed instructions for the installation of the venting system design or the venting system components.
D. When the manufacturer of a Product Approved sidewall horizontally vented gas fueled equipment does not provide the parts
for venting ue gases, but identies “special venting systems”, the following shall be satised:
1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation
instructions; and
2. The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall include a
parts list and detailed installation instructions.
E. A copy of all installation instructions for all Product Approved sidewall horizontally vented gas fueled equipment, all venting
instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance or
equipment at the completion of the installation.
3
Page 4
TABLE OF CONTENTS
I.Product Description, Specications and Dimensional Data......................5
XIII. Repair Parts ............................................................................................. 109
4
Page 5
I. Product Description, Specications and Dimensional Data
Phantom Series boilers are condensing high efciency
gas-red direct vent hot water heating boilers designed
for use in forced hot water space heating systems requiring
supply water temperatures of 190°F or less. These boilers
have special coil type stainless steel heat exchangers,
constructed, tested and stamped per Section IV ‘Rules
for Construction of Heating Boilers’ of ASME Boiler and
FuelShipped for Natural Gas, Field Converted for LP Gas*
Max. Setpoint Water Temperature (°F)190
Max. Allowable Working Pressure (psi)160
Factory supplied Safety Relief Valve (psi) *30
Boiler Water Volume (gal.)1.7
Heat Transfer area (sq. ft.)21.8
Approx. Shipping weight (lb.)206
Pressure Vessel Code, which provide a maximum heat
transfer and simultaneous protection against ue gas product
corrosion. These boilers are not designed for use in gravity
hot water space heating systems or systems containing
signicant amount of dissolved oxygen (swimming pool
water heating, direct domestic hot water heating, etc.).
This manual is for use with boilers having a part number
ending in “B” (example: PHNTM285HNT1SUB).
Boiler Model
PHNTM210PHNTM285
* Special congurations required above 2000ft. Boilers not suitable for LP gas above 7000ft.
Table 1B: Dimensional Data (See Figures 1A and 1B)
Dimension
A - Inch (mm)23-15/16 (608)21-13/16 (554)
B - Inch (mm)5-13/16 (147)7-5/16 (185)
C - Inch (mm)7-5/16 (186)14-1/8 (358)
D - Inch (mm)17-1/8 (435)18 (456)
E - Inch (mm)5-15/16 (151)12-1/4 (312)
Gas Inlet F (FPT)1/2”3/4”
Return G (FPT)1”1-1/4”
Supply H (FPT)1”1-1/4”
Condensate Drain J *
Boiler Two-Pipe CPVC/PVC Vent Connector
(Figs. 1A, 1B) - Inch
* Factory Provided Socket End Compression Pipe Joining Clamp
PHNTM210PHNTM285
for 3/4” Schedule 40 PVC Pipe
3 x 44 x 4
Boiler Model
5
Page 6
(24 VOLTS)
LOW VOLTAGE
KNOCKOUTS
'F' GAS VALVE INLET
TAPPING
" FPT RELIEF/DRAIN
4
'H' SUPPLY TAPPING
3
TRAP DRAIN
'J' CONDENSATE
Figure 1A: Model PHNTM210
(115 VOLTS)
KNOCKOUTS
LINE VOLTAGE
I. Product Description, Specications and Dimensional Data (continued)
3X4 PVC/CPVC
VENT ADAPTER
'G' RETURN TAPPING
6
Page 7
I. Product Description, Specications and Dimensional Data (continued)
Figure 1B: Model PHNTM285
7
Page 8
I. Product Description, Specications and Dimensional Data (continued)
Table 2: Ratings
Phantom Series Gas-Fired Boilers
Model Number
PHNTM2104221019416995.0
PHNTM2855728526222895.0
Ratings shown are for installations at sea level and elevations up to 2000 ft. For elevations above 2000 ft., the boiler will
naturally derate by 2.5% for each 1000 ft. above sea level. Boilers not suitable for use with LP gas above 7000ft.
1
Net AHRI Water Ratings based on piping and pickup allowance of 1.15. The manufacturer should be consulted before
selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system operation,
extensive piping systems, etc.
Input (MBH)
Min.Max.
Output
(MBH)
Net AHRI Ratings Water
(MBH)
1
AFUE
(%)
II. Unpacking Boiler
CAUTION
Do not drop boiler.
A. Move boiler to approximate installed position.
B. Remove all crate fasteners.
C. Lift and remove outside container.
D. Remove boiler from cardboard positioning sleeve on
shipping skid.
WARNING
Installation of this boiler should be undertaken
only by trained and skilled personnel from a
qualied service agency.
E. Move boiler to its permanent location.
8
Page 9
III. Pre-Installation and Boiler Mounting
WARNING
Explosion Hazard. Asphyxiation Hazard.
Electrical Shock Hazard. Installation of this
boiler should be undertaken only by trained
and skilled personnel from a qualied service
agency. Follow these instructions exactly.
Improper installation, adjustment, service,
or maintenance can cause property damage,
personal injury or loss of life.
NOTICE
Due to the low water content of the boiler, missizing of the boiler with regard to the heating
system load will result in excessive boiler
cycling and accelerated component failure.
Crown Boiler Company DOES NOT warrant
failures caused by mis-sized boiler applications.
DO NOT oversize the boiler to the system.
Multiple boiler installations greatly reduce the
likelihood of boiler oversizing.
service clearance is 24 in. (610 mm) from left side,
front, top and rear of the boiler. Recommended front
clearance may be reduced to the combustible material
clearance providing:
1. Access to boiler front is provided through a door
or removable front access panel.
2. Access is provided to the condensate trap
located underneath the heat exchanger.
3. Access is provided to thermal link located at
boiler rear.
D. Protect gas ignition system components
from water (dripping, spraying, rain, etc.) during
boiler operation and service (circulator replacement,
condensate trap, control replacement, etc.).
E. Provide combustion and ventilation air in
accordance with applicable provisions of local building
codes, or: USA - National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Air for Combustion and Ventilation;
Canada - Natural Gas and Propane Installation Code,
CAN/CSA-B149.1, Venting Systems and Air Supply for
Appliances.
WARNING
Asphyxiation Hazard.
Models with Two-Pipe Vent Connector:
Apply supplied dielectric grease to gasket inside
vent section of two-pipe vent connector. Failure
to apply the grease could result in ue gas leaks
from gasket rupture during vent pipe installation
or gasket deterioration due to condensate
exposure.
A. Installation must conform to the requirements
of the authority having jurisdiction in or, in the absence
of such requirements, to the National Fuel Gas Code,
ANSI Z223.1/NFPA 54, and/or Natural Gas and Propane Installation Code, CAN/CSA B149.1.
Where required by the authority having jurisdiction, the
installation must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers,
ANSI/ASME CSD1.
B. Boiler is certied for installation on
combustible ooring. Do not install boiler on
carpeting.
C. Provide clearance between boiler jacket and
combustible material in accordance with local re
ordinance. Refer to Figure 2 for minimum listed
clearances from combustible material. Recommended
WARNING
Asphyxiation Hazard. Adequate combustion and
ventilation air must be provided to assure proper
combustion. Install combustion air intake per
Section IV “Venting”.
F. The boiler should be located so as to minimize
the length of the vent system. The combustion air
piping must terminate where outdoor air is available for
combustion and away from areas that may contaminate
combustion air. In particular, avoid areas near chemical
Avoid areas containing saw dust, loose insulation bers,
dry wall dust etc.
NOTICE
Avoid operating this boiler in an environment
where sawdust, loose insulation bers, dry wall
dust, etc. are present. If boiler is operated under
these conditions, the burner interior and ports
must be cleaned and inspected daily to insure
proper operation.
9
Page 10
III. Pre-Installation and Boiler Mounting (continued)
G. General
1. Phantom boilers are intended for
installations in an area with a oor drain or in
a suitable drain pan to prevent any leaks or relief
valve discharge to cause property damage.
2. Phantom boilers are not intended to support
external piping and venting. All external piping and
venting must be supported independently of the
boiler.
3. Phantom boilers must be installed level to
prevent condensate from backing up inside the
boiler.
4. Boiler Floor Standing Installation:
a. For basement installation provide a solid base
such as concrete, where oor is not level or water
may be encountered on the oor around boiler.
Floor must be able to support weight of boiler,
water and all additional system components.
b. Boiler must be level to prevent condensate from
backing up inside the boiler.
c. Provide adequate space for condensate piping or
a condensate pump if required.
Boiler Clearances to Combustible (and NonCombustible) Material:
All models are listed for closet installation with the
following minimum clearances – Top = 1 in. (25 mm),
Front = 1 in. (25 mm), Left Side = 10 in. (250 mm),
Right Side = 2 in. (50 mm), Rear = *6 in. (150 mm)
* Note:
When boiler is vented vertically, the minimum
clearance from the rear of the jacket is increased to
18 in. (460 mm) with a short radius 90° elbow in
order to provide adequate space at boiler rear for
installation of vent and air intake piping and service
access.
Boiler Service Clearances – Applicable to all Boiler
Models:
Top = 24 in. (610 mm), Front = 24 in. (610 mm), Left
Side = 24 in. (610 mm), Right Side = 24 in. (610 mm),
Rear = 24 in. (610 mm)
The above clearances are recommended for service
access but may be reduced to the Combustible Material
Clearances provided:
a. The boiler front is accessible through a door.
b. Access is provided to the condensate trap located
on the left side of boiler.
c. Access is provided to thermal link located at the
boiler rear (PHNTM285 only).
10
Page 11
III. Pre-Installation and Boiler Mounting (continued)
Listed Direct
Vent System
Factory Standard
Two-Pipe CPVC/PVC Vent and PVC Combustion
Air Intake
Available Optional
Two-Pipe Rigid Polypropylene Vent (or, Flexible
Polypropylene Liner for Vertical Venting only) and
Rigid Polypropylene or PVC Combustion Air Intake
Available Optional
Two-Pipe Stainless Steel Vent and Galvanized Steel
or PVC Combustion Air Intake
Vent Pipe Material
* CPVC/PVC
Pipe Rigid Polypropylene
Vent (or, Flexible
Polypropylene Liner for
Vertical Venting only)
Stainless Steel
Vent Pipe
Direction
Vertical or
Horizontal
Enclosure
Unenclosed
at all Sides
Vent Pipe
Nominal Diameter
3 in. (80 mm)
or
4 in.( 100 mm)
3 in. (80 mm)
or (110 mm)
or
4 in. (100 mm)
or (110 mm)
3 in. (80 mm)
or
4 in.( 100 mm)
Minimum
Clearance to
Combustible
Material
1 in. (25 mm)
1 in. (25 mm)
1 in. (25 mm)
Figure 2: Clearances To Combustible and Non-combustible Material, Floor Standing
11
Page 12
III. Pre-Installation and Boiler Mounting (continued)
H. Boiler Stacking
1. For installations with unusually high space
heating and/or domestic hot water heating loads,
where employing two (2) Phantom boilers will offer
the benets of greater operational efciency, oor
space savings and boiler redundancy, the Phantom
boilers may be installed stacked one on the top of
the other. Refer to Table 3 “Phantom Boiler Model
Stacking Combinations” for details.
Table 3: Phantom Boiler Model Stacking
Combinations
Bottom
Boiler Model
PHNTM210PHNTM210
PHNTM285PHNTM285
2. To eld assemble individual Phantom boilers
into a stackable conguration, use the steps
below:
a. Position the bottom boiler rst. Refer to Sections
II “Unpacking Boiler” and III “Pre-Installation
& Boiler Mounting” of the manual for details.
Always position higher input boiler model as
bottom boiler.
b. Each Phantom boiler is factory packaged with
two (2) Stacking Boiler Attachment Brackets
(P/N 101679-01) and the bracket mounting
hardware [six (6) self-drilling hex washer head
plated #8 x ½” long screws]. Locate and remove
the brackets and the hardware. The Stacking
Boiler Attachments Bracket has three 7/32”
diameter holes punched in a triangular pattern.
See Figure 3 “Stacking Boiler Attachment
Bracket Placement”.
c. Phantom boiler left and right side panels have a
series of dimples at panel top and bottom. These
dimples are positioning dimples for Stacking
Boiler Attachment Bracket mounting screws.
Side panel bottom positioning dimples are evenly
spaced from boiler front and back, while side
panel top positioning dimples follow specic
pattern to compensate for Phantom boiler model
variable depth.
d. Position the upper boiler on the top of the bottom
boiler and align boiler front doors and sides ush
with each other.
• Place rst Stacking Boiler Attachment
Bracket onto the upper boiler left side panel,
at the panel lower left corner and align
bracket two upper holes with corresponding
side panel lower dimples.
Top Boiler Model
• The remaining lower bracket hole must align
with a matching bottom boiler left side panel
top positioning dimple.
• Once bracket holes and side panel dimple
alignment is veried, attach the bracket to
top and bottom boiler left side panels with
the mounting screws.
e. Repeat above procedure to install second
Stacking Boiler Attachment Bracket and secure
the stacked boiler right side panels together at
the front right corner.
f. Install the third Stacking Boiler Attachment
Bracket to secure top and bottom boiler left side
panels at the rear left corner. Align the bracket
holes with corresponding positioning dimples in
the top boiler and bottom boiler left side panels,
then secure bracket with the screws.
g. Repeat above procedure to install the forth
Stacking Boiler Attachment Bracket to secure
stacked boiler right side panels at the rear right
corner.
3. When installing stackable boiler
combinations observe the following
guidelines:
a. Venting - Top and bottom boilers must have their
individual vent piping and vent terminals.
WARNING
Asphyxiation Hazard. No common manifold
venting is permitted. Each boiler must have its
own individual vent and combustion air pipes
and terminals.
For side-wall venting individual model vent
terminals must terminate not closer than 12
inches horizontally and three (3) feet vertically
from each other in order to prevent combustion
air contamination. For vertical through the roof
venting, individual vertical vent terminals, if
level with each other, must be spaced no closer
than 12 inches horizontally. If vertical terminals
cannot end in one plane, they must be spaced no
closer than three (3) feet horizontally.
Follow instructions in Section IV “Venting”
of the manual for specics of individual boiler
vent termination. Follow instructions in Section
V “Condensate Disposal” for each individual
boiler ue gas condensate line construction and
condensate disposal. Terminating individual
boiler condensate lines into common pipe prior
12
Page 13
III. Pre-Installation and Boiler Mounting H. Boiler Stacking (continued)
to drain disposal is permissible, providing
common pipe has sufcient ow capacity
to handle combined condensate volume of
stackable combination.
b. Gas Piping - Follow instructions in Section
VII “Gas Piping” of the manual for sizing
and installation of an individual boiler. When
common gas piping is sized, insure it will have
adequate capacity for combined input (CFH
gas ow) of the selected stackable boiler
combination.
c. Water Piping and Trim - Follow instructions
in Section VI “Water Piping and Trim” of the
manual for system piping and boiler secondary
piping selection/sizing based on combined
heating capacity and/or gross output of
the selected stackable boiler combination.
Follow instructions of Section VI “Water
Piping and Trim” for each individual boiler trim
installation.
d. Electrical - Follow instructions in Section VIII
“Electrical” of the manual to wire individual
boilers.
Asphyxiation Hazard. Failure to vent this boiler in accordance with these instructions could cause
products of combustion to enter the building resulting in severe property damage, personal injury or
death.
Do not use a barometric damper, draft hood or vent damper with this boiler.
Do not locate vent termination under a deck.
Do not locate vent termination where exposed to prevailing winds.
Do not locate combustion air termination where chlorines, chlorouorocarbons (CFC’s), petroleum
distillates, detergents, volatile vapors or other chemicals are present. Severe boiler corrosion and
failure will result.
Use outdoor air for combustion. Do not obtain combustion air from within the building.
Use specied vent and combustion air pipe diameters. Do not reduce specied diameters of vent and
combustion air piping.
Do not interchange vent systems or materials unless otherwise specied.
Do not apply thermal insulation to vent pipe or ttings.
Moisture and ice may form on surface around vent termination. To prevent deterioration, surface must
be in good repair (sealed, painted, etc.).
Do not allow low spots in the vent where condensate may pool.
The CPVC vent materials supplied with this boiler do not comply with Natural Gas and Propane
Installation Code, CAN/CSA B149.1.S1-07 and are not approved for use in Canadian jurisdictions that
require vent systems be listed to ULC S636-2008. In these jurisdictions, vent this boiler using either
stainless steel Special Gas vent or a listed ULC S636 Class IIB venting system.
A. General Guidelines
1. Listed Vent/Combustion Air Systems
a. Install vent system in accordance with National
Fuel Gas Code, ANSI Z223.1/NFPA 54 or
Natural Gas and Propane Installation Code,
CAN/CSA B149.1 Installation Code for Canada,
or, applicable provisions of local building codes.
Contact local building or re ofcials about
restrictions and installation inspection in your
area.
b. The Phantom is a Direct Vent (sealed
combustion) boiler. Combustion air must be
supplied directly to the burner enclosure from
outdoors and ue gases must be vented directly
outdoors.
c. The following combustion air/vent system
options are listed for use with the Phantom
boilers (refer to Table 4):
i. Two-Pipe CPVC/PVC Vent/Combustion
Air System - Separate CPVC/PVC pipe
serves to expel products of combustion and
separate PVC pipe delivers fresh outdoor
combustion air. Refer to Part B for specic
details.
ii. Two-Pipe Polypropylene Vent/Combustion
Air System - Separate rigid or exible
polypropylene pipe serves to expel
products of combustion and separate rigid
polypropylene or PVC pipe delivers fresh
outdoor combustion air. Refer to Part C for
specic details.
iii. Two-Pipe Stainless Steel Vent/Combustion
Air System - Separate stainless steel pipe
serves to expel products of combustion
and separate PVC or galvanized steel pipe
delivers fresh outdoor combustion air. Refer
to Part D for specic details.
2. Vent/Combustion Air Piping
a. Do not exceed maximum vent/combustion air
lengths listed in Table 5. Vent/combustion air
length restrictions are based on equivalent length
of vent/combustion air pipe (total length of
straight pipe plus equivalent length of ttings).
Table 6A lists equivalent lengths for ttings.
Do not include vent/combustion air terminals
in equivalent feet calculations. Use vent/
combustion air equivalent length worksheet
provided in Table 6B.
b. Maintain minimum clearance to combustible
materials. See Figure 2 for details.
c. Enclose vent passing through occupied or
unoccupied spaces above boiler with material
having a re resistance rating at least equal to the
rating of adjoining oor or ceiling.
14
Page 15
IV. Venting A. General Guidelines (continued)
Table 4: Vent/Combustion Air System Options
Approved Direct
Vent System
Factory Standard
Two-Pipe,
CPVC/PVC Vent and
PVC Air Intake
Available Optional
Two-Pipe, Rigid
Polypropylene Vent (or
Flexible Polypropylene
Liner for Vertical
venting only) and Rigid
Polypropylene or PVC
Pipe Air Intake
Vent
Material
CPVC/PVC
Rigid
Polypropylene
(or Flexible
Polypropylene
Liner for vertical
Venting only)
OrientationTerminationDescriptionFigures
Standard
(through sidewall)
Horizontal
Optional
Snorkel
(through sidewall)
Optional
Vertical
Horizontal
Optional
Vertical
Vertical
(through roof)
Standard
(through sidewall)
Optional Snorkel
(through sidewall)
Vertical
(through roof or
chimney/chase)
The system includes separate CPVC vent
pipe and PVC air intake pipe terminating
through sidewall with individual penetrations
for the vent and air intake piping and
separate terminals (tees).
Same as above but separate snorkel type
terminals.
The system includes separate CPVC vent
pipe and PVC air intake pipe terminating
through roof with individual penetrations for
the vent and air intake piping and separate
vertical terminals.
The system includes separate Rigid
Polypropylene vent pipe and Rigid
Polypropylene or PVC air intake pipe
terminating through sidewall with individual
penetrations for the vent and air intake
piping and separate terminals (tees).
Same as above but separate snorkel type
terminals.
The system includes separate Flexible
Polypropylene vent liner and Rigid
Polypropylene vent pipe combination for
venting and Rigid Polypropylene or PVC
air intake pipe terminating through roof with
individual penetrations for the vent and air
intake and separate terminals.
4, 5, 6A, 6B,
9 through 13
4, 6A, 6B
9 through 13
7 through 11
13
4, 5, 6A, 6B
9, 12, 14
4, 6A, 6B
9, 12, 14
7 through 9
14, 15
Compo-
nent
Table
7A
7B
7C
10A, 10B
10A, 10B
10A, 10B
Part
B.
C.
The system includes separate stainless
steel vent pipe and PVC/galvanized steel
air intake pipe terminating through sidewall
with individual penetrations for the vent and
air intake piping and separate terminals.
Same as above but separate snorkel type
terminals.
The system includes separate Flexible
stainless steel vent liner and Rigid stainless
steel vent pipe and PVC/galvanized steel
air intake pipe terminating through roof with
individual penetrations for the vent and air
intake piping and separate terminals.
Available Optional
Two-Pipe,
Stainless Steel Vent and
PVC/Galvanized Steel
Air Intake
Stainless Steel
Horizontal
Optional
Vertical
Standard
(through sidewall)
Optional Snorkel
(through sidewall)
Vertical
(through roof or
chimney/chase)
Table 5: Vent/Combustion Air Pipe Length – Two-Pipe Direct Vent System Options
• CPVC/PVC
• Polypropylene (PP) or Polypropylene (PP)/PVC
• Stainless Steel/PVC or Galvanized Steel
Combustion AirVent
Boiler Model
PHNTM210
PHNTM285
Nominal
Pipe
Diameter
4 in.
(100 mm or 110 mm)
Minimum
Equivalent
Length
2.5 ft.
(760 mm)
Maximum
Equivalent
Length
135 ft.
(41.1)
100 ft.
(30.5 m)
Nominal
Pipe
Diameter
3 in.
(80 mm)
4 in.
(100 mm or 110 mm)
4, 5, 6A, 6B
9, 12, 16
4, 6A, 6B
9, 12, 16
7 through 9
17, 17A
Minimum
Equivalent
Length
2.5 ft.
(760 mm)
11A, 11BD.
Maximum
Equivalent
Length
135 ft.
(41.1)
100 ft.
(30.5 m)
15
Page 16
IV. Venting A. General Guidelines (continued)
Figure 4: Location of Vent Terminal Relative to Windows, Doors, Grades, Overhangs, Meters and Forced Air
Inlets - Two-Pipe System Vent Terminal (Shown) Two-Pipe System Air Intake Terminal (Not Shown)
Table 6A: Vent System and Combustion Air System Components Equivalent Length
vs. Component Nominal Diameter
Vent or Combustion Air System
Component Description
Component Nominal Diameter3 in. (80 mm)4 in. (100 mm or 110 mm)
90° Elbow (Short Radius)10 ft. (3.0 m)13 ft. (4.0 m)
45° Elbow (Short Radius)3.0 ft. (0.9 m)4.5 ft. (1.4 m)
Note: For one or two family dwellings, re
resistance rating requirement may not need to be
met, but is recommended.
d. Slope horizontal vent pipe minimum 1/4 in/ft
(21 mm/m) downward towards the boiler.
Les chaudières de catégories I, II et IV doivent
présenter des tronçons horizontaux dont la pente
montante est d’au moins 1/4 po par pied (21
mm/m) entre la chaudière et l’évent.
e. If possible, slope horizontal combustion air
pipe minimum 1/4 in/ft (21 mm/m) downward
towards terminal. If not, slope towards boiler.
f. Use noncombustible ¾ in. pipe strap to support
horizontal runs and maintain vent location and
slope while preventing sags in pipe. Do not
restrict thermal expansion or movement of vent
system. Maximum support spacing 4 ft. (1.2 m).
Avoid low spots where condensate may pool.
Equivalent Length for Vent or Combustion Air System Component
vs. Component Nominal Diameter
Les instructions d´installation du système
d´évacuation doivent préciser que les sections
horizontales doivent être supportées pour
prévenir le échissement. Les méthodes et les
intervalles de support doivent être spéciés.
Les instructions divent aussi indiquer les
renseignements suivants:
les chaudières de catégories II et IV doivent être
installées de façon à empêcher l´accumulation de
condensat: et
si nécessaire, les chaudières de catégories II et IV
doivent être pourvues de dispositifs d´évacuation
du condensat.
g. For multiple boiler installations with vertical
roof terminals, separate vent pipes from multiple
boilers may be piped through a common conduit
or chase so that one roof penetration may be
made.
Do not penetrate any part of the vent system with
fasteners.
16
Page 17
IV. Venting A. General Guidelines (continued)
Table 6B: Vent/Combustion Air Equivalent Length Calculation Work Sheet
Combustion AirVent
90° Elbow(s) (Installer Supplied)90° Elbow(s) (CPVC Supplied with Boiler)
* Total Equivalent Length (A+B+C) =2.5 Ft. (760 mm) Straight Pipe, (CPVC Supplied with Boiler)
* Notes:
1. Calculated total equivalent length cannot exceed
maximum equivalent length shown in Table 5.
2. Vent and combustion air terminals do not count towards
total equivalent length.
3. Pressure drop for exible polypropylene liner is 20%
greater than for rigid pipe. Multiply measured exible
polypropylene liner length by 1.2 to obtain equivalent
length.
Example
Measure length of exible polypropylene liner = 35 ft.
Equivalent length of exible polypropylene liner = 35 ft.
x 1.2 = 42 ft.
4. Maximum equivalent length of exible polypropylene liner
is 48 ft. (14.6 m).
5. All elbows referenced are short radius.
Nominal Diameter
3 in.
(80 mm)
4 in.
(100 mm or 110 mm)
Nominal Diameter
3 in.
(80 mm)
4 in.
(100 mm or 110 mm)
Quantity
Length,
ft or m
2.5 ft.
(0.76 m)
2.5 ft.
(0.76 m)
Equivalent Length,
ft/ft or m/m
1
12.5 ft.
Straight Pipe, (Installer Supplied)
Quantity
Length,
ft
Equivalent Length,
ft/ft
1
1
* Total Equivalent Length (A+B+C+D+E) =
Subtotal,
Equivalent
Length (D)
Subtotal,
Equivalent
Length (A)
Subtotal,
Equivalent
Length (B)
Subtotal,
Equivalent
Length (E)
2.5 ft.
(0.76 m)
(0.76 m)
Subtotal,
Equivalent
Length (C)
3. Vent/Combustion Air Terminals
Install venting system components on exterior
of building only as specically required by these
instructions (refer to Figure 4).
a. Use only listed vent/combustion air terminals.
i. Horizontal Sidewall Venting: Use tee
terminals for both vent and combustion air
as shown in Figure 5. Alternate snorkel
terminations are shown in Figure 6A and
Figure 6B.
ii. Vertical Roof Venting: Use straight
coupling on vent and two 90° elbows turned
downwards for combustion air as shown in
Figure 7 and Figure 8.
17
Figure 5: Direct Vent - Sidewall Tee Terminations
Page 18
IV. Venting A. General Guidelines (continued)
Figure 6A: Direct Vent - Optional Vent Sidewall
Snorkel Termination
Figure 6B: Direct Vent - Optional Vent and
Combustion Air Sidewall Snorkel Terminations
b. Maintain correct clearance and orientation
between vent and combustion air terminals.
i. Space centerlines of vent and combustion
air terminals minimum 12 in. (300 mm)
apart. More than 12 in. (300 mm) spacing is
recommended.
ii. If possible, locate vent and combustion
air terminals on the same wall to prevent
nuisance shutdowns. If not, boiler may
be installed with roof vent terminal and
sidewall combustion air terminal.
iii. When installed on the same wall, locate
vent terminal at same height or higher than
combustion air terminal.
iv. When using tee terminals, do not locate vent
terminal directly above air intake as dripping
condensate may freeze on and block intake.
c. Locate bottom of vent and combustion air
terminals at least 12 in. (300 mm) [18 in.
(460 mm) in Canada] above the normal snow line
and at least 12 in. (300 mm) above grade level.
d. Locate vent and combustion air terminals at
least 12 in. (300 mm) from any door, window, or
gravity inlet into the building.
e. Do not install vent terminal directly above
windows or doors.
f. Locate bottom of vent terminal at least 3 ft. (900
mm) above any forced air inlet located within 10
ft. (3.0 m).
g. If window and/or air inlet is within 4 ft. (1.2 m)
of an inside corner, maintain at least 6 ft. (1.8 m)
spacing between terminal and adjoining wall of
inside corner.
h. Locate bottom of vent terminal at least 7 ft.
(2.1 m) above a public walkway.
i. Maintain minimum clearance of at least 4 ft.
(1.2 m) [3 ft. (900 mm)in Canada] horizontally
between vent terminal and gas meters, electric
meters, regulators, and relief equipment. Do
not install vent terminal above or below this
equipment.
j. Do not locate the vent terminal under decks or
similar structures.
k. Top of terminal must be at least 24” below
ventilated eves, softs, and other overhangs. In
no case may the overhang exceed 48”. Where
permitted by the authority having jurisdiction
and local experience, the terminal may be located
closer to unventilated softs. The minimum
vertical separation depends upon the depth of the
soft. See Figure 4 for details.
l. Maintain minimum 12 in. (300 mm) horizontal
spacing between vent terminal and a building
corner.
18
Page 19
IV. Venting A. General Guidelines - B. CPVC/PVC Venting (continued)
m. Under certain conditions, water in the ue gas
may condense, and possibly freeze, on objects
around the terminal including on the structure
itself. If these objects are subject to damage by
ue gas condensate, they should be moved or
protected.
n. If possible, install the vent and combustion air
terminals on a wall away from the prevailing
wind. Reliable operation of this boiler cannot be
guaranteed if terminals are subjected to winds in
excess of 40 mph (64 km/hr).
o. Do not locate combustion air terminal in areas
that might contain combustion air contaminates,
such as near swimming pools.
p. For multiple boiler installations with horizontal
wall terminals, maintain minimum 12 in.
(300 mm) horizontal distance between adjacent
boiler vent terminals. Maintaining greater
spacing is recommended to avoid frost damage
to building surfaces where vent terminations are
placed.
q. For multiple boiler installations with vertical
roof terminals, maintain minimum 12 in.
(300 mm) horizontal distance between adjacent
boiler vent terminals.
B. CPVC/PVC Venting
WARNING
Asphyxiation Hazard. Failure to follow
these instructions could cause products of
combustion to enter the building, resulting
in severe property damage, personal injury,
or death.
Use all CPVC vent components (supplied
with boiler) for near-boiler vent piping before
transitioning to Schedule 40 PVC pipe
(ASTM 2665) components for remainder of
vent system.
Use CPVC vent components within any
interior space where air cannot circulate
freely, including through vertical or
horizontal chase ways, inside a stud wall, in
closets, and through wall penetrations.
The use of cellular core PVC (ASTM
F891), cellular core CPVC or Radel
(polyphenolsulfone) is prohibited.
All condensate that forms in the vent must
be able to drain back to the boiler.
Figure 7: Direct Vent - Vertical Terminations
Do not exceed maximum vent/combustion
air system length. Refer to “2. Vent/
Combustion Air Piping” under “A. General
Guidelines” of this section for maximum
vent/combustion air system length.
Use only vent and combustion air terminals
and terminal locations shown in “3. Vent/
Combustion Air Terminals” under “A.
General Guidelines” of this section.
1. Components
a. See Table 7A for CPVC/PVC vent and
combustion air components included with boiler.
b. See Table 7B for CPVC/PVC installer provided
vent and combustion air components required for
optional horizontal snorkel terminals shown in
Figure 6B.
c. See Table 7C for CPVC/PVC installer provided
vent and combustion air components required
for optional vertical roof terminals shown in
Figure 7.
2. Field Installation of CPVC/PVC Two-Pipe
Vent System Connector
Refer to Figure 9 and following steps:
a. Position the CPVC/PVC vent connector and
gasket onto boiler rear panel and insert vent
connector inner stainless steel vent pipe into heat
exchanger vent outlet.
b. Align vent connector plate and gasket clearance
holes with rear panel engagement holes. Then,
secure the connector and gasket to the panel with
six mounting screws.
NOTICE
19
Page 20
IV. Venting B. CPVC/PVC Venting (continued)
Figure 8: Direct Vent - Vertical Terminations
with Sloped Roof
Extend vent/combustion air piping to maintain minimum vertical (‘X’) and minimum horizontal (‘Y’) distance
of 12 in. (300 mm) [18 in. (460 mm) Canada] from roof surface. Allow additional vertical (‘X’) distance for
expected snow accumulation.
Table 7A: CPVC/PVC Vent & Air Intake Components Included With Boiler
Quantity
Vent & Air Intake Components
3” Schedule 40 PVC Tee (Vent & Air Intake
Terminals)
4” Schedule 40 PVC Tee (Vent & Air Intake
Terminals)
with Flue Temperature Sensor and Sensor Cap
3" Vent/4" Combustion Air CPVC/PVC Connector
with Flue Temperature Sensor and Sensor Cap
4" Vent/4" Combustion Air CPVC/PVC Connector
with Flue Temperature Sensor and Sensor Cap
3" Vent/3" Combustion Air CPVC/PVC Connector
Gasket
4" Vent/4" Combustion Air CPVC/PVC Connector
Gasket
Part
Number
2308031N/A
23080412
105133-01N/AN/A
105133-021N/A
105133-03N/A1
230841N/AN/A
102185-0211
Standard Termination Vent Kit
PHNTM210
Standard Termination Vent Kit
(P/N 105179-02)
includes
PHNTM285
(P/N 105179-03)
includes
Asphyxiation Hazard. Apply supplied dielectric grease to gasket inside vent section of two-pipe vent
connector. Failure to apply the grease could result in ue gas leaks from gasket rupture during vent
pipe installation or gasket deterioration due to condensate exposure.
WARNING
20
Page 21
IV. Venting B. CPVC/PVC Venting (continued)
Table 7B: CPVC/PVC Vent & Air Intake Components (Installer Provided) Required for Optional Horizontal
(Snorkel) Termination
Quantity
Vent Components
3 in. Schedule 40 PVC Pipe x up to 7 ft. max. vertical run
4 in. Schedule 40 PVC Pipe x up to 7 ft. max. vertical run12
3 in. Schedule 40 PVC 90° Elbow2N/A
4 in. Schedule 40 PVC 90° Elbow24
3 in. Schedule 40 PVC Pipe x ½ ft. min. horizontal run1N/A
4 in. Schedule 40 PVC Pipe x ½ ft. min. horizontal run12
Part
Number
N/A
Supplied
by
Others
Table 7C: CPVC/PVC Vent & Air Intake Components (Installer Provided) Required for Optional Vertical
(Roof) Termination
Vent Components
3" Schedule 40 PVC Coupler
4" Schedule 40 PVC Coupler11
3" Schedule 40 PVC 90° ElbowN/AN/A
4" Schedule 40 PVC 90° Elbow22
3" Schedule 40 CPVC Pipe x ½ ft. min. horizontal runN/AN/A
4" Schedule 40 CPVC Pipe x ½ ft. min. horizontal run11
Part
Number
N/A
Supplied by
Others
PHNTM210
Horizontal (Snorkel)
Termination
1N/A
PHNTM210
Vertical (Roof)
Termination
N/AN/A
PHNTM285
Horizontal (Snorkel)
Termination
Quantity
PHNTM285
Vertical (Roof)
Termination
Figure 9: Field Installation of CPVC/PVC Two-Pipe Vent Connector with Factory Installed
(taped to boiler rear panel) female connectors to
the sensor male spade terminals. Failure to do
so will prevent boiler from starting and boiler
display will ash Red and display Limit String
Fault (see Section XII “Troubleshooting” for
details).
NOTICE
Flue temperature sensor harness must be
connected to ue temperature sensor for the
boiler to start-up and operate properly. The
installation is not complete unless the harness
and the sensor are interconnected.
3. Near-Boiler Vent/Combustion Air Piping
Refer to Figure 10 and the following Steps:
a. Apply supplied dielectric grease (grease pouch
attached to two-pipe vent connector) to gasket
inside vent section of 3 in. x 3 in., 3 in. x 4 in. or
4 in. x 4 in. two-pipe vent connector. The grease
will prevent gasket rupture when inserting vent
pipe and gasket deterioration due to condensate
exposure.
b. Install provided Schedule 40 x 30 in. (760 mm)
long CPVC pipe into the vent section of the
connector with a slight twisting motion and
secure by tightening the worm band clamp screw.
c. All CPVC vent components supplied with boiler
inside vent carton [Schedule 40 x 30 in. (760
mm) long CPVC pipe and Schedule 80 CPVC
90° Elbow] must be used for near-boiler piping
before transitioning to Schedule 40 PVC (ASTM
2665) pipe components for remainder of vent
system. The 30 in. (760 mm) long CPVC straight
pipe may be cut to accommodate desired vent
conguration provided both pieces are used
in conjunction with CPVC 90° Elbow before
any PVC components are used. Ensure that the
CPVC 90° Elbow is the rst elbow used in the
vent system as it exits the boiler.
d. Insert Schedule 40 PVC combustion air pipe
(installer provided) into the combustion air
section of the connector with a slight twisting
motion and secure by tightening the worm band
clamp screw.
e. Clean all vent and combustion air pipe joints
with primer and secure with cement. Use a eld
supplied cement and primer that is listed for use
with the materials being joined (CPVC and/or
PVC). The following, or its equivalent, may be
used to join CPVC to PVC:
before applying the cement. Assemble the pipe
in accordance with the instructions on the cans of
primer and cement.
4. System Assembly
WARNING
Asphyxiation Hazard. CPVC/PVC vent piping and
ttings rely on glued joints for proper sealing.
Follow all manufacturer instructions and
warnings when preparing pipe ends for joining
and using the primer and the cement.
a. Plan venting system to avoid possible contact
with plumbing or electrical wires. Start at
vent connector at boiler and work towards vent
termination.
b. Design the vent system to allow 3/8 in.
(9.5 mm) of thermal expansion per 10 ft. (3.0 m)
of CPVC/PVC pipe. Runs of 20 ft. (6.1 m) or
longer that are restrained at both ends must use
an offset or expansion loop. Refer to Figure 11
and Table 8.
22
Page 23
IV. Venting B. CPVC/PVC Venting (continued)
Table 8: Expansion Loop Lengths
Nominal
Pipe Dia.
(In.)
3
4
c. All CPVC/PVC vent and combustion air
5. Horizontal Sidewall Termination
a. Standard Two-Pipe Termination
See Figure 5.
Length of
Straight Run
(Ft.)
2053
3065
4075
5084
6092
2060
3074
4085
5095
60104
Loop Length
“L” (In.)
Figure 12: Wall Penetration Clearances
for PVC Vent Pipe
pipe joints must be cleaned with primer and
glued with cement. Follow all manufacturer
instructions and warnings when preparing pipe
ends for joining and using the primer and the
cement.
i. Vent Piping
Running PVC vent pipe inside Enclosures
and through Walls:
Figure 11: CPVC/PVC Expansion Loop and Offset
• PVC vent pipe must be installed in such
way as to permit adequate air circulation
around the outside of the pipe to prevent
internal wall temperature rising above
ANSI Z21.13 standard specied limit.
• Do not enclose PVC venting. Use higher
temperature rated CPVC pipe in enclosed
spaces or to penetrate combustible or noncombustible walls.
• PVC vent pipe may not be used to
penetrate combustible or non-combustible
walls unless all following three conditions
are met simultaneously (see Figure 12):
- The wall penetration is at least 66
in. (1680 mm) from the boiler as
measured along the vent
- The wall is 12 in. (300 mm) thick or
less
- An air space of at least of that shown
in Figure 12 is maintained around
outside of the vent pipe to provide
air circulation
• If above three conditions cannot be met
simultaneously, use CPVC for the wall
penetration.
• Size and cut wall opening such that a
minimal clearance is obtained and to allow
easy insertion of vent pipe.
• Apply sealant between vent pipe and wall
23
Page 24
IV. Venting B. CPVC/PVC Venting (continued)
opening to provide weather-tight seal.
Sealant should not restrain the expansion
of the vent pipe.
• Install contractor provided optional trim
plate on outside surface of wall to cover
opening (see Figure 12).
• Secure trim plate to wall with nails or
screws and seal ID and plate OD or
perimeter with sealant material.
• Install rodent screen and vent terminal
(supplied with boiler). See Figure 13 for
appropriate conguration details.
NOTICE
Methods of securing and sealing terminals to
the outside wall must not restrain the thermal
expansion of the vent pipe.
ii. Combustion Air Piping
• Size combustion air pipe wall penetration
opening to allow easy insertion of the pipe.
• Install rodent screen and combustion air
terminal (supplied with boiler). See Figure
13 for appropriate conguration details.
• Apply sealant between combustion air pipe
and wall opening to provide weather-tight
seal.
b. Optional Two-Pipe Snorkel Termination
See Figures 6A and 6B.
This installation will allow a maximum of 7
ft. (2.1 m) vertical exterior run of the vent/
combustion air piping to be installed on the
CPVC/PVC horizontal venting application.
i. Vent Piping
• After penetrating wall, install a
Schedule 40 PVC 90° elbow so
that the elbow leg is in the up
direction.
• Install maximum vertical run of
7 ft.
(2.1 m) of Schedule 40 PVC
vent pipe. See Figure 6A.
• At top of vent pipe length install
another PVC 90° elbow so
that elbow leg is opposite the
building’s exterior surface.
• Install rodent screen and vent
terminal (supplied with boiler),
see Figure 13 for appropriate
conguration.
• Brace exterior piping if required.
ii. Combustion Air Piping
• After penetrating wall, install a Schedule
40 PVC 90° elbow so that elbow leg is in
the up direction.
• Install maximum vertical run of 7 ft.
(2.1 m) of Schedule 40 PVC air pipe. See
Figure 6B.
• At top of air pipe length install another
PVC 90° elbow so that elbow leg is
opposite the building’s exterior surface.
• Install rodent screen and combustion air
terminal (supplied with boiler). See Figure
13 for appropriate conguration.
• Brace exterior piping if required.
7. Vertical Roof Termination
a. Standard Two-Pipe Termination
See Figures 7 and 8.
i. Vent Piping
• Install re stops where vent passes through
oors, ceilings or framed walls. The re
stop must close the opening between the
vent pipe and the structure.
• Whenever possible, install vent straight
through the roof. Refer to Figures 7 and 8.
- Size roof opening to maintain
minimum clearance of 1 in. (25 mm)
from combustible materials.
- Extend vent pipe to maintain minimum vertical and horizontal
distance of 12 in. (300 mm) from
roof surface. Allow additional
vertical distance for expected snow
accumulation. Provide brace as
required.
NOTICE
Vertical venting and combustion air roof
penetrations (where applicable) require the use
of roof ashing and storm collar, which are not
supplied with boiler, to prevent moisture from
entering the structure.
Figure 13: Rodent Screen Installation
24
Page 25
IV. Venting B. CPVC/PVC Venting - C. Polypropylene Venting (continued)
- Install storm collar on vent pipe
immediately above ashing. Apply
Dow Corning Silastic 732 RTV
Sealant or equivalent between vent
pipe and storm collar to provide
weather-tight seal.
• Install rodent screen and vent terminal
(supplied with boiler). See Figure 13 for
appropriate conguration.
• Brace exterior piping if required.
ii. Combustion Air Piping
• If possible, locate combustion air
termination on the same roof location as
the vent termination to prevent nuisance
boiler shutdowns. Combustion air terminal
may be installed closer to roof than vent.
Alternatively, boiler may be installed with
vertical roof vent terminal and sidewall
combustion air terminal.
• Size roof opening to allow easy insertion
of combustion air piping and allow proper
installation of ashing and storm collar
to prevent moisture from entering the
structure.
- Use appropriately designed
vent ashing when passing through
roofs. Follow ashing manufacturers’
instructions for installation procedures.
- Extend combustion air pipe to
maintain minimum vertical and horizontal distance of 12 in.
(300 mm) from roof surface. Allow
additional vertical distance for
expected snow accumulation. Provide
brace as required.
- Install storm collar on combustion air
pipe immediately above
ashing. Apply Dow Corning Silastic
732 RTV Sealant or equivalent
between combustion air pipe and
storm collar to provide weather-tight
seal.
• Install rodent screen and combustion air
terminal (supplied with boiler). See Figure
13 for appropriate conguration.
• Brace exterior piping if required.
C. Polypropylene Venting
WARNING
Asphyxiation Hazard. Follow these
instructions and the installation instructions
included by the original polypropylene
venting component manufacturers, M&G/
DuraVent or Centrotherm, whichever
applicable. Failure to do so could cause
products of combustion to enter the
building, resulting in severe property
damage, personal injury or death.
Where a conict arises between M&G/
DuraVent or Centrotherm instructions and
these instructions, the more restrictive
instructions shall govern.
Do not mix vent components or joining
methods for listed manufacturers.
Examine all components for possible
shipping damage prior to installation.
All condensate that forms in the vent must
be able to drain back to the boiler.
1. Components
a. Listed polypropylene vent system manufacturers
are shown in Table 9. It is the responsibility of
the installing contractor to procure polypropylene
vent system pipe and related components.
i. M&G/DuraVent PolyPro Single Wall Rigid
Vent and PolyPro Flex Flexible Vent comply
with the requirements of ULC-S636-08
‘Standard for Type BH Gas Venting
Systems’.
Table 9: Listed Polypropylene Vent System
Manufacturers
MakeModel
M&G/DuraVent
Centrotherm Eco
Systems
PolyPro Single Wall Rigid Vent
PolyPro Flex Flexible Vent
InnoFlue SW Rigid Vent
Flex Flexible Vent
NOTICE
Do not exceed maximum vent/combustion air
system length. Refer to “2. Vent/Combustion
Air Piping” under “A. General Guidelines” of
this section for maximum vent/combustion air
system length.
Use only vent and combustion air terminals
and terminal locations shown in “3. Vent/
Combustion Air Terminals” under “A.
General Guidelines” of this section.
25
Page 26
IV. Venting C. Polypropylene Venting (continued)
Table 10A: Approved Polypropylene Pipe, Fittings and Terminations - M&G/DuraVent
Rigid Vent and Flex Flexible Vent comply
with the requirements of UL 1738 ‘Standard
for Safety for Venting Systems’ and
ULC-S636-08 ‘Standard for Type BH Gas
Venting Systems’.
b. See Table 10A for specic M&G Duravent
components.
c. See Table 10B for specic Centrotherm Eco
Systems components.
2. Field Installation of CPVC/PVC Two-
Pipe Vent System Connector and PVC to
Polypropylene Adapter
a. Install CPVC/PVC two-pipe vent system
connector. Follow instructions in “2. Field
Installation of CPVC/PVC Two-Pipe Vent
System Connector” under “B. CPVC/PVC
Venting.” See Figures 9 and 14.
b. Apply provided dielectric grease (grease pouch
taped to the vent system connector) all around
to the vent or air connection inner red silicon
gasket.
c. Push and twist PVC to PP adapter into two-pipe
vent system connector vent or combustion air
supply port until bottomed out.
d. Tighten the worm band clamp screw to secure
PVC to PP adapter.
e. Do not install PVC to PP adapter at the lower
combustion air supply port of the two-pipe vent
system connector when using PVC pipe for
combustion air supply to boiler.
3. System Assembly
a. Plan venting system to avoid possible contact
with plumbing or electrical wires. Start at
vent connector at boiler and work towards vent
termination.
b. Follow all manufacturer instructions and
warnings when preparing pipe ends for joining
and when assembling the vent/combustion air
system.
c. Use locking band clamps at all vent pipe joints.
Figure 14: Vent System Field Modication to
Install PVC to PP Adapter (M&G/DuraVent Shown)
26
Page 27
IV. Venting C. Polypropylene Venting (continued)
WARNING
Asphyxiation Hazard. Vent systems made by
M&G/DuraVent and Centrotherm Eco Systems
rely on gaskets for proper sealing. When these
vent systems are used, take the following
precautions:
• Make sure that gasket is in position and un-
damaged in the female end of the pipe.
• Make sure that both the male and female
pipes are free of damage prior to assembly.
• Only cut vent pipe as permitted by the
vent manufacturer in accordance with their
instructions. When pipe is cut, cut end
must be square and carefully de-burred prior
to assembly.
• Use locking band clamps at all vent pipe
joints.
NOTICE
The venting system must be free to expand
and contract and supported in accordance
with installation instructions included by the
original polypropylene venting component
manufacturers, M&G/DuraVent or Centrotherm,
whichever applicable. Polypropylene pipe
sections must be disengaged 1/4 to 5/8 in.
(6 mm to 16 mm) per joint to allow for thermal
expansion.
4. Running Flexible Polypropylene Vent
(Liner) Through Unused Chimney Chase
WARNING
Asphyxiation Hazard. Flexible polypropylene
vent must be installed only in an UNUSED
chimney. A chimney, either single or multiple
ue type, is considered UNUSED when none
of the ues is being used for any appliance
venting. Where one of the multiple ues is
being used for an appliance venting, the exible
vent installation is not permitted through any of
adjacent ues.
NOTICE
Pressure drop for exible polypropylene liner
is 20% greater than from rigid pipe. Multiply
measured exible polypropylene liner length by
1.2 to obtain equivalent length.
Maximum equivalent length of exible
polypropylene liner is 48 ft. (14.6 m).
a. Models PHNTM210 and PHNTM285 are listed
for vertical venting by installing exible vent
in an UNUSED masonry chimney/chase and
supplying combustion air through a separate wall
or roof combustion air terminal.
b. Refer to Figure 15 for details of chimney chase
installation.
c. Flexible polypropylene pipe must be treated
carefully and stored at temperatures higher than
41°F (5°C).
d. Do not bend or attempt to install exible pipe if
it has been stored at lower ambient temperature
without allowing the pipe to warm up to a higher
temperature rst.
WARNING
Asphyxiation Hazard. Bending or attempting
to install exible pipe if it has been stored at
ambient temperature below 41°F (5°C) will
cause material to become brittle and lead to
cracks, resulting in ue gas leaks.
Do not install exible polypropylene pipe
at an angle greater than 45 degrees from
vertical plane when used for combustion
product venting. Failure to do so will result
in improper condensate drainage towards
the boiler and possible subsequent vent
pipe blockage.
NOTICE
Exterior run to be included in equivalent vent/
27
combustion air lengths.
e. When exible polypropylene pipe (liner) is used
for combustion product venting, it must not be
installed at an angle greater than 45 degrees from
vertical plane. This will insure proper condensate
ow back towards the boiler.
f. When exible polypropylene pipe (liner) is used
for combustion air supply to a boiler, the pipe
(liner) can be installed in vertical or horizontal
position.
g. Follow exible polypropylene pipe (liner)
manufacturer specic installation instructions
regarding application/listing, permits, minimum
clearances to combustibles, installation details
(proper joint assembly, pipe support and routing,
gasket and tting installation, optional tooling
availability/usage, routing through masonry
combination of combustion product venting and
combustion air supply).
h. When there is a conict between exible
polypropylene pipe (liner) manufacturer
installation instructions and Phantom boiler
Installation, Operating and Service Instructions,
the more restrictive instructions shall govern.
Page 28
IV. Venting D. Stainless Steel Venting (continued)
Venting of Other Appliances (or Fireplace)
into Chase or Adjacent Flues Prohibited!
D. Stainless Steel Venting
WARNING
Asphyxiation Hazard. Follow these instructions
and the installation instructions included by
the original stainless steel venting component
manufacturers, Heat Fab, M&G/DuraVent or
Z-Flex, whichever applicable. Failure to do
so could cause products of combustion to
enter the building, resulting in severe property
damage, personal injury or death. Where
a conict arises between Heat Fab, M&G/
DuraVent or Z-Flex instructions and these
instructions, the more restrictive instructions
shall govern.
Do not mix vent components from listed
manufacturers.
Examine all components for possible
shipping damage prior to installation.
All condensate that forms in the vent must
be able to drain back to the boiler.
Figure 15: Flexible PP Vent in Masonry Chimney with
Separate Combustion Air Intake
NOTICE
Do not exceed maximum vent/combustion
air system length. Refer to “2. Vent/
Combustion Air Piping” under “A. General
Guidelines” in this section for maximum
vent/combustion air system length.
Use only vent and combustion air terminals
and terminal locations shown in “3. Vent/
Combustion Air Terminals” under “A.
General Guidelines” of this section.
1. Components
a. Acceptable listed stainless steel vent system
manufacturers and components are shown in
Table 11.
b. Where the use of “silicone” is called for in the
following instructions, use GE RTV 106 or
equivalent for the vent collar. Seal galvanized
28
Page 29
IV. Venting D. Stainless Steel Venting (continued)
combustion air piping sections with any generalpurpose silicone sealant such as GE RTV102.
Seal PVC combustion air piping sections with
PVC cement.
c. Do not drill holes in vent pipe.
2. Field Installation of CPVC/PVC Two-Pipe
Vent System Connector and PVC to Stainless
Steel Adapter
a. Install CPVC/PVC two-pipe vent system
connector. Follow instructions in “2. Field
Installation of CPVC/PVC Two-Pipe Vent
System Connector” under “B. CPVC/PVC
Venting.” See also Figures 9 and 17.
b. Apply provided dielectric grease (grease pouch
taped to the vent system connector) all around
to the vent or air connection inner red silicon
gasket.
c. Push and twist PVC to stainless steel adapter
into two-pipe vent system connector vent or
combustion air supply port until bottomed out.
See Figure 16.
d. Tighten the worm band clamp screw to secure
PVC to stainless steel adapter.
e. Do not install PVC to stainless steel adapter
at the lower combustion air supply port of the
two-pipe vent system connector when using PVC
pipe for combustion air supply to boiler.
WARNING
Failure to properly secure the vent adapter lower
end into the elbow with the clamp could lead to
property damage, personal injury or loss of life.
3. System Assembly
a. Plan venting system to avoid possible contact
with plumbing or electrical wires. Start at
vent connector at boiler and work towards vent
termination.
b. Follow all manufacturer instructions and
warnings when preparing pipe ends for joining
and when assembling the vent/combustion air
system.
NOTICE
The venting system must be free to expand
and contract and supported in accordance
with installation instructions included by the
original stainless steel venting component
manufacturers, Heat Fab, M&G / DuraVent or
Z-Flex, whichever applicable.
c. On horizontal pipe sections, orient all welded
seams at the 12:00 position. Do not place
longitudinal welded seams at the bottom of
horizontal sections of vent pipe.
d. Assemble the combustion air system using either
galvanized or PVC pipe.
i. If PVC piping is used, use PVC cement
to assemble the PVC intake system
components. See “B. CPVC/PVC Venting”
for combustion air pipe installation
instructions.
ii. If galvanized piping is used, use at least two
sheet metal screws per joint. Seal outside of
all joints
4. Horizontal Sidewall Vent Termination
a. Standard Two-Pipe Termination
See Figures 5A and 5B.
i. Vent Termination
• Use a stainless steel tee in the upright
position.
WARNING
Asphyxiation Hazard. Vent systems made
by Heat Fab, M&G / DuraVent and Z-Flex rely
on gaskets for proper sealing. When these
vent systems are used, take the following
precautions:
• Make sure that gasket is in position and
undamaged in the female end of the pipe.
• Make sure that both the male and female
pipes are free of damage prior to assembly.
• Only cut vent pipe as permitted by the
vent manufacturer in accordance with their
Instructions. When pipe is cut, cut end must
be square and carefully de-burred prior to
assembly.
NOTICE
The joint between the terminal and the last piece
of pipe must be outside of the building.
• Male end of terminal will t into female
end of any of the listed stainless vent
systems.
• Apply a heavy bead of silicone to the male
end of the terminal before inserting it into
the last piece of pipe. Orient the terminal
so that the seam in the terminal is at 12:00.
• Smooth the silicone over the seam between
the terminal and the last piece of pipe,
applying additional silicone if necessary to
ensure a tight seal.
29
Page 30
IV. Venting D. Stainless Steel Venting (continued)
Table 11: Acceptable Stainless Steel Vent Systems and Vent Components
Manufacturer
M&G/DuraVentFasNseal
Z-Flex
NOTE: See vent system manufacturer’s literature for other part numbers that are required such as straight pipe, elbows, restops and vent
supports.
Vent
System
SVE Series III
(“Z-Vent III”)
Nominal Dia.
4 in.
(100 mm)
4 in.
(100 mm)
• Allow the silicone to cure per the silicone
manufacturer’s instructions before
operating the boiler.
ii. Combustion Air Termination
• Use a tee in the upright position. Tee
should protrude the same distance from the
wall as the exhaust terminal as shown in
Figure 5.
• Install a rodent screen (not supplied) in the
inlet terminal. Use a screen having 1/2 in.
x 1/2 in. (13 mm x 13 mm) mesh.
b. Optional Two-Pipe Snorkel Termination
See Figures 6A and 6B.
This installation will allow a maximum of
7 ft. (2.1 m) vertical exterior run of the vent/
combustion air piping to be installed on the
approved AL29-4C stainless steel horizontal
venting application.
i. Vent Termination
• After penetrating wall, install the
appropriate manufacturer’s 90° elbow so
that the elbow leg is in the up direction.
• Install maximum vertical run of 7 ft.
(2.1 m) of appropriate manufacturer’s vent
pipe as shown in Figure 6A.
• At top of vent pipe length install another
appropriate manufacturer’s 90° elbow so
that the elbow leg is opposite the building’s
exterior surface.
• Install horizontal vent terminal.
• Brace exterior piping if required.
PVC to SS
Adapter
810005231FSWT4Tee: FSTT4FSBS4
2SVSTTA04.52SVSWTF04Tee: 2SVSTTX042SVSTPX04
Wall Thimbles
Horizontal
Termination
Vertical
Termination
ii. Combustion Air Termination
• After penetrating wall, install a 90° elbow
so that the elbow leg is in the up direction.
• Install maximum vertical run of 7 ft.
(2.1 m) of combustion air pipe as shown in
Figure 6B.
• At top of vent pipe length install another
90° elbow so that the elbow leg is opposite
the building’s exterior surface.
• Install rodent screen (not supplied) and
horizontal vent terminal.
• Brace exterior piping if required.
5. Vertical Vent Termination
a. Standard Two-Pipe Termination
See Figures 7 and 8.
i. Vent Termination
• Use the terminal supplied by the vent
system manufacturer shown in Table 11.
Follow manufacturer’s instructions to
attach terminal to vent system.
ii. Combustion Air Termination
• Install vertical combustion air terminal.
Vertical combustion air terminal consists of
a 180° bend (comprised of two 90° elbows)
as shown in Figure 7.
• Install rodent screen (not supplied) in the
combustion air terminal. Use a screen
having 1/2 in. x 1/2 in. (13 mm x 13 mm)
or larger mesh.
6. Running Flexible Stainless Steel Vent (Liner)
Through Unused Chimney or Chase
Figure 16: Field Installation of Two-Pipe Vent
System Adapter for Stainless Steel
WARNING
Asphyxiation Hazard. Flexible stainless steel
vent must be installed only in an UNUSED
chimney ue. A chimney ue is considered
UNUSED when it is not being used for any
appliance venting. Where one of the multiple
ues is being used for an appliance venting, the
exible stainless vent installation is permitted
through an adjacent unused ue providing a
local authority having jurisdiction approves such
installation.
30
Page 31
IV. Venting D. Stainless Steel Venting, E.. Removing the Existing Boiler (continued)
a. Both models are listed for vertical venting by
installing exible stainless steel vent (M&G/
DuraVent FlexNSeal brand) in an UNUSED
masonry chimney/chase and supplying
combustion air through a separate wall or roof
combustion air terminal. The unused chimney
ue must be structurally sound and in good
repair.
b. Refer to Figure 17 for details of chimney chase
installation.
WARNING
Asphyxiation Hazard. Flexible stainless steel
pipe (liner) must be installed at vertical or near
vertical plane when used for combustion product
venting. Failure to do so will result in improper
condensate drainage towards the boiler and
possible subsequent vent pipe blockage.
c. 105290-01 (3”), 102219-01 (3”), and 102220-01
(4”) adapters are available from Crown.
d. FSA-HB3 (3”) and FSA-HB4 (4”) adapters as
well as FasNSeal rigid and exible vent pipe
are eld supplied and available from M&G/
DuraVent.
e. When exible stainless steel pipe (liner) is used
for combustion product venting, it must be
installed at vertical or near vertical plane. This
will insure proper condensate ow back towards
the boiler.
f. Follow exible stainless steel pipe (liner)
manufacturer M&G/DuraVent FlexNSeal
specic installation instructions (DuraVent
publication L1150 - latest edition) regarding
application/listing, permits, minimum clearances
to combustibles, installation details (proper joint
assembly, pipe support and routing, gasket and
usage, routing through masonry combination of
combustion product venting and combustion air
supply).
g. When there is a conict between exible stainless
steel pipe (liner) manufacturer installation
instructions and Phantom boiler Installation,
Operating and Service Instructions, the more
restrictive instructions shall govern.
E. Removing the Existing Boiler
When an existing boiler is removed from a common
venting system, the common venting system is likely
to be too large for proper venting of the remaining
appliances. At the time of removal of an existing
boiler, the following steps shall be followed with each
appliance remaining connected to the common venting
system placed in operation, while the other appliances
remaining connected to the common venting system are
not in operation.
1. Seal any unused openings in the common venting
system.
2. Visually inspect the venting system for proper
size and horizontal pitch and determine there is no
blockage or restriction, leakage, corrosion, and other
deciencies which could cause an unsafe condition.
3. Insofar as is practical, close all building doors and
windows and all doors between the space in which
the appliances remaining connected to the common
venting system are located and other spaces of the
building. Turn on clothes dryers and any appliance
not connected to the common venting system.
Turn on any exhaust fans, such as range-hoods and
bathroom exhausts, so they will operate at maxi mum
speed. Do not operate a summer exhaust fan. Close
replace dampers.
4. Place in operation the appliance being inspected.
Follow the Lighting (or Operating) Instructions.
Adjust thermo stat so appliance will operate
continuously.
5. Test for spillage at the draft hood relief opening after
5 minutes of main burner operation. Use the ame
of a match or candle, or smoke from a cigarette,
cigar or pipe.
6. After it has been determined that each appliance
remain ing connected to the common venting system
properly vents when tested as outlined above, return
doors, win dows, exhaust fans, replace dampers and
any other gas burning appliance to their previous
conditions of use.
7. Any improper operation of the common venting
system should be corrected so the installation
conforms with the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 and/or the Natural Gas and Propane Installation Code, CAN/CSA B149.1.
When resizing any portion of the common venting
system, the common venting system should be
resized to approach the minimum size as determined
using the appropriate tables in Part II in the National
Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or the
Natural Gas and Propane Installation Code, CAN/
CSA B149.1.
Au moment du retrait d’une chaudière existante, les
mesures suivantes doivent être prises pour chaque
appareil toujours raccordé au système d’evacuation
commun et qui fonctionne alors que d’autres appareils
toujours raccordés au système d’évacuation ne
fonctionnent pas:
1. Sceller toutes les ouvertures non utilisées du
système d’évacuation.
31
Page 32
IV. Venting E.. Removing the Existing Boiler, F. Multiple Boiler Installation Venting (continued)
2. Inspecter de façon visuelle le système d’évcuation
pour déterminer la grosseur et l’inclinaison
horizontale qui conviennent et s’assurer que le
système est exempt d’obstruction, d’étranglement,
de fuite, de corrosion et autres défaillances qui
pourraient présenter des risques.
3. Dans la mesure du possible, fermer toutes les
portes et les fenêtres du bâtiment et toutes les
portes entre l’espace où les appareils toujours
raccordés au système d’évacuation sont installés
et les autres espaces du bâtiment. Mettre en
marche les sécheuses, tous les appareils non
raccordés au système d’évacuation commun
et tous les ventilateurs d’extraction comme les
hottes de cuisinière et les ventilateurs des salles de
bain. S’assurer que ces ventilateurs fonctionnent
à la vitesse maximale. Ne pas faire fonctionner
les ventilateurs d’été. Fermer les registres des
cheminées.
4. Mettre l’appareil inspecté en marche. Suivre les
instructions d’allumage. Régler le thermostat de
façon que l’appareil fonctionne de façon continue.
5. Faire fonctionner le brùleur principal pendant 5
min ensuite, déterminer si le coupe-tirage déborde
à l’ouverture de décharge. Utiliser la amme d’une
allumette ou d’une chandelle ou la fumée d’une
cigarette, d’un cigare ou d’une pipe.
6. Une fois qu’il a été déterminé, selon la méthode
indiquée ci-dessus, que chaque appareil raccordé
au système d’évacuation est mis à l’air libre de
façon adéquate. Remettre les portes et les fenêtres,
les ventilateurs, les registres de cheminées et les
appareils au gaz à leur position originale.
7. Tout mauvais fonctionnement du système
d’évacuation commun devrat être corrigé de façon
que l’installation soit conforme au National Fuel
Gas Code, ANSI Z223.1/NFPA 54 et (ou) aux
codes d’installation CAN/CSA-B149.1. Si la
grosseur d’une section du système d’évacuation
doit être modiée, le système devrait être modié
pour respecter les valeurs minimales des tableaux
pertinents de l’appendice F du National Fuel Gas
Code, ANSI Z223.1/NFPA 54 et (ou) des codes
d’installation CAN/CSA-B149.1.
F. Multiple Boiler Installation Venting
1. Vent Piping and Terminations
a. Multiple boiler vent terminations are shown in
Figure 18.
b. Each individual boiler must have its own vent
pipe and vent terminal. Refer to Paragraphs A
through E (as applicable) for individual boiler
vent guidelines and options.
c. Do not exceed the individual boiler maximum
vent length listed in Table 5.
Asphyxiation Hazard. No common manifold
venting (vent piping and vent terminals) is
permitted.
d. For horizontal sidewall terminations, maintain
at least 12 in. (300 mm) minimum horizontal
distance between any adjacent individual boiler
vent terminations. Additional horizontal spacing
between any adjacent individual boiler vent
terminations as well as extending the distance
from building surfaces to vent termination end
are recommended to avoid frost damage to
building surfaces where vent terminations are
placed.
Installing multiple individual boiler vent
terminations too close together may result in
combustion product water vapor condensation
on building surfaces, where vent terminations
are placed, and subsequent frost damage.
To avoid/minimize frost damage, extend
the distance from building surfaces to vent
termination end and increase the horizontal
distance between adjacent vent terminations.
e. Individual boiler sidewall vent terminals must be
placed at least 12 in. (300 mm) [18 in. (460 mm)
in Canada] above the ground plus the expected
snow accumulation.
f. Multiple individual boiler vertical vent pipes
may be piped through a common conduit or
chase so that one roof penetration may be made.
g. For vertical roof terminations, maintain at
least 12 in. (300 mm) minimum horizontal
distance between adjacent individual boiler vent
terminations.
2. Combustion Air Piping
a. Multiple boiler combustion air terminations are
shown in Figure 18.
b. Each individual boiler must have own
combustion air pipe and terminal. Refer to
Paragraphs A through E (as applicable) for
individual boiler combustion air guidelines and
options.
c. Do not exceed the individual boiler maximum
combustion air pipe length listed in Table 5.
d. If possible, locate vent and combustion air
terminals for an individual boiler on the same
wall to prevent nuisance shutdowns. If not,
an individual boiler may be installed with a
roof vent terminal and sidewall combustion air
terminal.
32
WARNING
NOTICE
Page 33
IV. Venting F. Multiple Boiler Installation Venting (continued)
Figure 17 : Flexible Stainless Steel Vent in Masonry Chimney with Separate Combustion Air Intake
Figure 18: Multiple Boiler Direct Vent Termination
33
Page 34
V. Condensate Disposal
A. Condensate Trap and Drain Line
1. All condensate which forms in the boiler or vent
system collects in the sump under heat exchanger
and leaves the boiler through factory installed
condensate trap.
2. The trap allows condensate to drain from sump
while retaining ue gases in the boiler. The trap
has factory installed overow switch, which shuts
down the boiler in the event the drain line becomes
obstructed, preventing proper condensate removal.
Refer to Section XI “Service and Maintenance” for
condensate trap and condensate overow switch
removal and replacement procedure, if required.
3. Note the following when disposing of the
condensate:
a. Condensate is slightly acidic, typical pH around
3.5 - 4.5. Do not use metallic pipe or ttings in
the condensate drain line. Do not route the drain
line through areas that could be damaged by
leaking condensate.
b. Do not route or terminate the condensate drain
line in areas subject to freezing temperatures.
c. If the point of condensate disposal is above the
trap, a condensate pump is required to move
the condensate to the drain. Select a condensate
pump approved for use with condensing
furnaces. If overow from the pump would
result in property damage, select a pump with an
overow switch. Wire this switch in series with
installer provided external high limit, to shut off
the boiler, and, if desired, in series with installersupplied alarm, to trigger an alarm in the event of
overow.
d. Do not attempt to substitute another trap for one
provided with the boiler.
e. In order for boiler to work properly, the boiler
must be leveled during installation.
4. The condensate trap connection is located at
boiler left side, below inlet and outlet water pipe
connections. Refer to Figures 1A, 1B and19.
5. Condensate trap must be lled up with water,
prior to boiler start-up and before connecting any
condensate line to the boiler to insure combustion
products cannot escape from operating boiler. To ll
the trap, inject water in the amount of 1 cup (240ml)
through condensate trap connection. Do not overll
the trap.
6. Install tee for condensate overow and vent as
shown in Figure 19.
WARNING
Asphyxiation Hazard. Failure to ll the
condensate trap with water prior to boiler startup could cause ue gas to enter the building,
resulting in personal injury or death.
7. If any additional condensate drain line is needed,
construct the extension from PVC or CPVC
Schedule 40 pipe. The factory supplied ¾ in. x 5-5/8
in. long PVC coupling, located in the miscellaneous
parts carton, must be used to connect drain line to
the condensate trap. Do not over tighten coupling
compression nuts when connecting drain line and
condensate trap.
8. Size condensate drain line, pump and neutralizer
(if using other than manufacturer neutralizer kit) to
accommodate maximum condensate ow shown in
Table 11C “Maximum Condensate Flow”.
WARNING
Asphyxiation Hazard. Failure to install the
condensate drain in accordance with the above
instructions could cause ue gas to enter the
building, resulting in personal injury or death.
NOTICE
Boiler condensate is corrosive. Route
condensate drain line in a manner such
that any condensate leakage will not cause
property damage.
Some jurisdictions may require that
condensate be neutralized prior to disposal.
Use materials approved by the authority
having jurisdiction.
B. Condensate Neutralizer Installation
1. Some jurisdictions may require that the condensate
be neutralized before being disposed of. Follow
local codes pertaining to condensate disposal.
2. The limestone chips used in neutralizers will get
coated by salts and lose neutralizing effectiveness
over time. Therefore, periodic condensate
neutralizer maintenance and limestone chip
replacement must be performed. A pH test or
acid test kits are available from HVAC/plumbing
distributors and should be used to measure
condensate acidity before/after neutralizer thus
indicating a need for service and chip replacement.
34
Page 35
V. Condensate Disposal (continued)
Table 11C: Maximum Condensate Flow
Boiler
Model
PHNTM2102.4
PHNTM2853.2
*Assumes 100% of water in fuel condenses.
*Maximum Condensate Flow,
GPH
Figure 19: Condensate Trap and Drain Line
35
Page 36
VI. Water Piping and Trim
NOTICE
Failure to properly pipe boiler may result in improper operation and damage to boiler or structure.
Install boiler so that the gas ignition system components are protected from water (dripping, spraying,
rain, etc.) during appliance operation and service (circulator replacement, etc.).
Oxygen contamination of boiler water will cause corrosion of iron and steel boiler components, and
can lead to boiler failure. Crown Boiler Company’ s Standard Warranty does not cover problems
caused by oxygen contamination of boiler water or scale (lime) build-up caused by frequent addition of
water.
Do not ll boiler with softened water to prevent chloride contamination.
Installation is not complete unless a safety relief valve is installed into the tapping located on left side
of appliance or the supply piping.
A. Installation of Factory Supplied Piping and
Trim Components
Phantom boilers have factory supplied Miscellaneous
Part Carton which includes supply piping components,
gas piping components, Temperature & Pressure Gauge,
Pressure Relief Valve and Drain Valve. See Figure 20
“Factory Supplied Piping and Trim Installation”.
Install these components prior to connecting boiler to
system piping as follows:
1. Relief Valve Piping, PHNTM210 Boiler
Model
a. Locate and remove ¾ in. NPT x close black
nipple, ¾ in. NPT black tee, ¾ in. MPT x ¾ in.
FPT Pressure Relief Valve, ¾ in. NPT Drain
Valve.
b. Install close nipple into tee branch, then, screw
the assembly into boiler left side front ¾ in.
tapping making sure tee run outlets are in vertical
plane and parallel to boiler side.
c. Mount ¾ in. MPT x ¾ in. FPT Pressure Relief
Valve into the tee top outlet.
d. Install Drain Valve into the tee bottom outlet.
2. Relief Valve Piping, PHNTM285 Boiler
Model
a. Locate and remove (1) ¾ in. NPT x close black
nipple, (1) ¾ in. NPT x 10 in. black nipple, ¾ in.
NPT black tee, ¾ in. FPT x ¾ in. FPT Pressure
Relief Valve, ¾ in. NPT Drain Valve.
Notice: Required near boiler
piping (“boiler loop piping”)
size may be larger than piping/
trim supplied with boiler. See
Table 13. If larger piping is
required, increase size directly
after supplied trim.
Figure 20: Factory Supplied Piping and Trim Installation
36
Page 37
VI. Water Piping and Trim B. Piping System To Be Employed (continued)
b. Install close nipple into tee branch, then, screw
the assembly into boiler left side front ¾ in.
tapping making sure tee run outlets are in vertical
plane and parallel to boiler side.
c. Install the ¾ in. NPT x 10 in. black nipple into
tee run top outlet.
d. Mount ¾ in. FPT x ¾ in. FPT Pressure Relief
Valve onto the 10 in. nipple.
e. Install Drain Valve into the tee bottom outlet.
3. Temperature /Pressure Gauge Piping,
PHNTM210 Boiler Models
a. Locate and remove 1 in. NPT x 4 in. long black
nipple, 1 in. x 1 in. x 1 in. NPT black tee, 1
in. x ¼ in. NPT black reducing bushing and
Temperature & Pressure Gauge.
b. Mount the nipple into 1 in. boiler supply tapping
(see Figure 1A), then, install the tee onto the
nipple, making sure 1 in. branch outlet is in
horizontal plane and facing the boiler front.
c. Install 1 in. x ¼ in. NPT black reducing bushing
into the tee branch, then, put in Temperature &
Pressure Gauge.
4. Temperature /Pressure Gauge Piping,
PHNTM285 Boiler Model
a. Locate and remove 1¼ in. NPT x 2 in. long black
nipple, 1¼ in. x 1¼ in. x ¾ in. NPT black tee,
¾ in. x ¼ in. NPT black reducing bushing and
Temperature & Pressure Gauge.
b. Mount the nipple into 1¼ in. boiler supply
tapping (see Figure 1B), then, install the tee onto
the nipple, making sure ¾ in. branch outlet is in
horizontal plane and facing the boiler front.
c. Install ¾ in. x ¼ in. NPT black reducing bushing
into the tee branch, then, put in Temperature &
Pressure Gauge.
B. Piping System To Be Employed.
Phantom boilers are designed to operate in a closed
loop pressurized system. Minimum pressure in the
boiler must be 14.5 PSI. Proper operation of the
Phantom boiler requires that the water ow through the
boiler remain within the limits shown in Table 14, any
time the boiler is ring.
NOTICE
Failure to maintain the ow through boiler within
specied limits could result in erratic operation
or premature boiler failure.
1. Near boiler piping must isolate boiler from
system piping via closely spaced tees to insure
specied ow range through boiler any time the
boiler is ring:
a. The ow rate through the boiler loop is
maintained by factory supplied boiler circulator.
b. The ow rate through the boiler loop is
completely independent of the ow rate through
the heating system loop(s).
c. The ow rate through the heating system loop(s)
is controlled by installer sized/provided system
loop circulator(s).
d. This piping arrangement can be used either for
space heating-only applications or space heating
with indirect water heater(s) applications.
i.Space heating only - refer to Table 13 and
Figure 21 “Near Boiler Piping - Heating
Only” as applicable.
ii. Space heating plus indirect water
heater(s) - refer to Table 13 and Figure 22
“Near Boiler Piping - Heating Plus Indirect
Water Heater” as applicable.
NOTICE
Where it is not possible to install a separate
boiler loop, the system circulator must be
sized to ensure that the ow through boiler
stays within the dened parameters to prevent
overheating when the boiler is red at it’s full
rated input. Install a ow meter to measure the
ow, or re the boiler at full rate and ensure the
boiler DT does not exceed 35°F (19°C).
2. Direct connection of Phantom boiler to
heating system, similar to a conventional boiler, is
NOT RECOMMENDED because:
a. The ow rate through system must be the same
as through boiler and fall within limits specied
in Table 12.
b. Pressure drop through entire system must be
known, added to pressure drop through boiler,
and, a circulator selected to provide required
ow at total calculated pressure drop.
c. It is often very difcult to accurately calculate
the pressure drop through the system.
d. In replacement installations, it may be nearly
impossible to get an accurate measurement of
piping amount and number of ttings in the
system. If system is zoned, the system ow rate
may drop well below recommended minimum
ow when only a single zone is calling for heat.
37
Page 38
VI. Water Piping and Trim B. Piping System To Be Employed (continued)
Notes: Required Flow (GPM) = ** Output (MBH) x 1000/500 x ΔT
** Output (MBH) - Select Value for specic Boiler Model from Table 2.
Boiler
Supply
Connection,
Inch, FPT
will result in higher uid density and may require larger circulators.
Boiler
Return
Connection,
Inch, FPT
Minimum
Required
Flow (GPM)
@ 35°F ΔT
Boiler
Head Loss,
Ft.
@ 35°F ΔT
Required
Flow,
(GPM)
@ 30°F ΔT
Boiler
Head Loss,
Ft.
@ 30°F ΔT
Required
Flow,
(GPM)
@ 25°F ΔT
Boiler
Head Loss,
Ft.
@ 25°F ΔT
Maximum
Required
Flow (GPM)
@ 20°F ΔT
See also Table 13 for near boiler piping sizing. Using boiler antifreeze
Boiler
Head Loss,
Ft.
@ 20°F ΔT
Table 13: Recommended Circulators for 50 ft. Equivalent ft. Near Boiler Piping [Approximately 20 ft.
Straight Pipe, (4) 90° Elbows, and (2) Full Port Ball Valves]
Boiler
Model
Boiler Supply
Connection,
Inch, FPT
PHNTM210111¼1¼15.511.7Taco 0014
PHNTM2851¼1¼1½1½21.512.3Taco 0013
Notes:
(1)
Temperature Differential = 20°F
(2)
Taco Circulators shown are not equipped with internal ow check valve (IFC).
When selecting Circulators other than recommended, contact Circulator Manufacturer for sizing information.
Near-Boiler Piping Size shown is based on 2 to 5.5 Ft/Sec. velocity range to avoid potential noise and pipe erosion.
Boiler
Return
Connection,
Inch, FPT
Near-Boiler
Piping
Supply Pipe
Size, Inch
Near-Boiler
Piping
Return Pipe
Size, Inch
Flow, GPM
@ 25°F
Temp.
Differential
Combined
Boiler &
Piping Loop
Head Loss, Ft.
Recommended
Circulator
Make & Model
38
(2)
(2)
Page 39
VI. Water Piping and Trim C. Standard Installation Requirements (continued)
Table 14: Fitting and Valve Equivalent Length
Table 14: Fitting and Valve Equivalent Length
(cont’d)
Copper Fitting and Sweat Valve
Equivalent Length (Ft)
Fitting or Valve
Description
90° Elbow2.53.04.05.5
45° Elbow1.01.21.52.0
Tee (through ow)0.50.60.81.0
Tee (Branch ow)4.55.57.09.0
Diverter Tee (typical)23.525.023.023.0
Gate Valve0.30.40.50.7
Globe Valve25.036.046.056.0
Angle Valve5.37.89.412.5
Ball Valve (standard port)4.37.06.614.0
Ball Valve (full port)1.91.42.21.3
Swing Check Valve 4.55.56.59.0
Flow-Check Valve
(typical)
Buttery Valve2.72.02.74.5
NOTE: Table 14 is provided as reference to assist in piping design and species equivalent length of typical piping ttings and
valves.
Copper Pipe or Valve Size
11¼1½2
54.074.057.0177.0
3. Phantom boiler models are factory supplied
with circulators, which were sized for near-
boiler piping equivalent length of 50 ft. and listed
temperature differential. See Table 13 for details.
It is the installer’s responsibility to insure a proper
installation and where applicable, proper circulator
Threaded Fitting and Valve Equivalent Length (Ft)
Fitting or Valve
Description
90° Elbow2.63.54.05.2
Long Radius
Elbow (45° or 90°)
Tee (through ow)1.82.32.73.5
Tee (Branch ow)5.36.98.110.0
Close Return Bend4.45.86.78.6
Gate Valve (full open)0.70.91.11.4
Globe Valve (full open)30.039.046.059.0
Angle Valve (full open)13.017.020.026.0
Swing Check Valve
(full open)
Flow-Check Valve
(typical)
Black Threaded Pipe or
Valve Size
11¼1½2
1.41.82.22.8
8.712.013.017.0
42.060.063.083.0
if the valve opens. The end of the discharge pipe
must terminate in an unthreaded pipe. If the relief
valve is not piped to a drain, it must terminate at
least 6” above the oor. Do not run relief valve
discharge piping through an area prone to freezing.
The termination of discharge piping must be in an
area where it will not become plugged by debris.
speed setting for the boiler circulator to achieve
a required ow rate. Where near-boiler piping
exceeds 50 equivalent feet, alternate circulator
selection may be required.
C. Standard Installation Requirements
Observe the following guidelines when making the
actual installation of the boiler piping:
1. Safety Relief Valve (Required) - The relief
valve is packaged loose with boiler and must be
installed in the location shown in Figure 20 “Factory
Supplied Piping and Trim Installation”. The relief
valve must be installed with spindle in vertical
position. Installation of the relief valve must comply
with ASME Boiler and Pressure Vessel Code,
Section IV. The standard factory shipped relief valve
is rated for 30 PSI maximum working pressure for
PHNTM210 and PHNTM285. Optional 50 PSI,
80 PSI and 100 PSI maximum working pressure
rated relief valves are available. If the valve is to be
replaced, the replacement valve must have a relief
capacity equal or exceeding the minimum relief
valve capacity shown on the ASME plate. Pipe the
relief valve discharge to a location where hot water
or steam will not create hazard or property damage
Burn Hazard. Safety relief valve discharge
piping must be piped such that the potential of
severe burns is eliminated. DO NOT pipe in any
area where freezing could occur. DO NOT install
any shut-off valves, plugs or caps. Consult local
codes for proper discharge piping arrangement.
2 Circulator (Required) – Usually at least two
circulators will be required to properly install a
Phantom Series boiler. See Paragraph B above for
information on sizing the circulators.
3. Expansion Tank (Required) – If this boiler is
replacing an existing boiler with no other changes
in the system, the old expansion tank can generally
be reused. If the expansion tank must be replaced,
consult the expansion tank manufacturer’s literature
for proper sizing.
4. Fill Valve (Required) – Either manual
(recommended) or automatic ll valve may be used.
However, if automatic rell is employed, a water
meter must be added to evaluate the makeup water
CAUTION
39
Page 40
CAUTION
It is the installers responsibility to select pumps
and boiler piping congurations that provide the
proper ow rates and performance for the boiler
and indirect water heater.
Refer to Table 13 for recommended Boiler Loop
Circulator.
VI. Water Piping and Trim C. Standard Installation Requirements (continued)
Figure 21: Near Boiler Piping - Heating Only
40
Page 41
CAUTION
It is the installers responsibility to select pumps
and boiler piping congurations that provide the
proper ow rates and performance for the boiler
and indirect water heater.
Refer to Table 13 for recommended Boiler Loop
Circulator.
VI. Water Piping and Trim C. Standard Installation Requirements (continued)
Figure 22: Near Boiler Piping - Heating Plus Indirect Water Heater
41
Page 42
VI. Water Piping and Trim D.Special Situation Installation Requirements, E. Multiple Boiler Installation
(continued)
volume taken after initial ll and eliminate any
water leakage as early as possible.
5. Automatic Air Vent (Required) –At least one
automatic air vent is required. Manual vents will
usually be required in other parts of the system to
remove air during initial ll.
6. Manual Reset High Limit (Required by some
Codes) – This control is required by ASME CSD-1
and some other codes. Install the high limit in the
boiler supply piping just above the boiler with no
intervening valves. Set the manual reset high limit
to 200°F. Wire the limit per Figures 26 and 27 in
Section VIII Electrical.
7. Flow Control Valve (Strongly
Recommended) –
The ow control valve prevents ow through the
system unless the circulator is operating. Flow
control valves are used to prevent gravity circulation
or “ghost ows” in circulator zone systems through
zones that are not calling for heat.
8. Y-strainer (Recommended) – A Y-strainer or
equivalent strainer removes heating system debris
from hydronic systems and protects boiler heat
exchanger from fouling up. Install the strainer
downstream of full port isolation valve, at the inlet
side of the circulator, for easy service.
9. Isolation Valves (Strongly recommended) –
Isolation valves are useful when the boiler must be
drained, as they will eliminate having to drain and
rell the entire system.
10. Drain Valve (Required) – Drain valve is
packaged loose with boiler and must be installed in
the location shown in Figure 20 “Factory Supplied
Piping and Trim Installation” of the Installation,
Operating and Service Instructions.
11. Low Water Cutoff (Required by some
Codes) –
Optional Automatic Reset LWCO with harness
is available. Order Part Number 450610 when
required.
D. Special Situation Installation Requirements
Observe the following guidelines when making the
actual installation of the boiler piping for special
situations:
1. Systems containing high level of dissolved
oxygen – Many hydronic systems contain enough
dissolved oxygen to cause severe corrosion damage
to Phantom boiler heat exchanger. Some examples
include but not limited to:
• Radiant systems employing tubing without
oxygen barrier
• Systems with routine additions of fresh water
• Systems open to atmosphere
If the boiler is used in such a system, it must be
separated from oxygenated water being heated with
a heat exchanger as shown in Figure 24. Consult
the heat exchanger manufacturer for proper heat
exchanger sizing as well as ow and temperature
requirements. All components on the oxygenated
side of the heat exchanger, such as the pump
and expansion tank, must be designed for use in
oxygenated water.
2. Piping with a Chiller - If the boiler is used in
conjunction with a chiller, pipe the boiler and chiller
in parallel. Use isolation valves to prevent chilled
water from entering the boiler.
3. Boiler Piping with Air Handlers - Where the
boiler is connected to air handlers through which
refrigerated air passes, use ow control valves in the
boiler piping or other automatic means to prevent
gravity circulation during the cooling cycle.
E. Multiple Boiler Installation Water Piping –
(See Table 15 and Figures 23A and 23B)
1. Refer to this Section of this manual for:
a. Installation of Factory Supplied Piping and Trim
Components for an individual module (boiler).
b. Regarding an individual module (boiler) piping
system specic details.
c. Selection criteria for individual module (boiler)
space heating and/or DHW circulators.
2. For installations where indirect domestic hot
water heater is combined with space heating,
pipe the indirect water heater zone off of the primary
loop as shown in Figure 23A.
VI. Water Piping and Trim E. Multiple Boiler Installation (continued)
43
Figure 23A: Multiple Boiler Water Piping w/Domestic Hot Water Heater (Page 1 of 2)
NOTICE
Installing a low water cutoff in the system piping
of multiple boilers is strongly recommended and
may be required by Local Codes.
Page 44
VI. Water Piping and Trim E. Multiple Boiler Installation (continued)
Figure 23B: Multiple Boiler Water Piping w/Domestic Hot Water Heater (Page 2 of 2)
NOTICE
Installing a low water cutoff in the system piping
of multiple boilers is strongly recommended and
may be required by Local Codes.
44
Page 45
VI. Water Piping and Trim E. Multiple Boiler Installation (continued)
NOTICE
The Phantom boiler heat exchanger is made from stainless steel tubular coil having relatively narrow
waterways. Once lled with water, it will be subject to the effects of corrosion. Failure to take the
following precautions to minimize corrosion and heat exchanger waterways overheating could result in
severe boiler damage.
•
Before connecting the boiler, insure the system is free of impurities, grease, sediment, construction
dust, sand, copper dust, ux and any residual boiler water additives. Flush the system thoroughly
and repeatedly, if needed, with clear water mixed with concentrated rinse agent to remove these
contaminants completely.
•
Iron oxide (red oxide sludge Fe
ence in the system, the system must be air free and leak tight. Do not connect the boiler to radiant
tubing without an oxygen barrier. Using automatic water rell is not recommended, however, if such
rell is employed, a water meter must be added to evaluate the makeup water volume taken after initial ll and eliminate any water leakage as early as possible.
•
Maintain the water pressure in the boiler at a minimum of 14.5 psi (100 kPa).
•
The boiler water pH must be within 7.5 < pH < 9.5. If the system contains any aluminum components,
pH must be less than 8.5.
•
Black oxide sludge (magnetite Fe
system not protected by an inhibitor.
•
Scale deposit is made up of lime scale contained in most distributed water and settles over the warmest surfaces of boiler heat exchanger causing subsequent overheating and eventual failure. Water
hardness must be maintained within 3 to 9 grain/gal range.
•
Refer to Section XI “Service and Maintenance” for recommended heating system water treatment products
(corrosion/scale inhibitors, cleaners etc) and their suppliers.
) is produced during oxygenation. To minimize any oxygen pres-
2O3
) forms as the result of continuous electrolytic corrosion in any
3O4
Figure 24: Isolation of the Boiler From Oxygenated Water with A Plate Heat Exchanger
45
Page 46
VII. Gas Piping
WARNING
Explosion Hazard. Failure to properly pipe gas
supply to boiler may result in improper operation
and damage to the boiler or structure. Always
assure gas piping is absolutely leak free and of
the proper size and type for the connected load.
An additional gas pressure regulator may be
needed. Consult gas supplier.
NOTICE
Size corrugated stainless steel tubing (CSST)
to ensure proper capacity and minimize ow
restrictions.
A. Size gas piping. Design system to provide adequate
gas supply to boiler. Consider these factors:
1. Allowable pressure drop from point of
delivery to boiler. Maximum allowable system
pressure is ½ psig (3.4 kPa). Actual point of delivery
pressure may be less; contact gas supplier for
additional information. Minimum gas valve inlet
pressure is printed on the rating label located in the
boiler’s vestibule compartment.
2. Maximum gas demand. Refer to the boiler’s
input as printed on its rating label. Also consider
existing and expected future gas utilization
equipment (i.e. water heater, cooking equipment).
3. Length of piping and number of ttings.
Refer to Tables 17A (natural gas) or 17B (LP gas)
for maximum capacity of Schedule 40 pipe. Table
15 lists equivalent pipe length for standard ttings.
4. Specic gravity of gas. Gas piping systems for
gas with a specic gravity of 0.60 can be sized
directly from Table 14 and gas with a specic
gravity of 1.5 can be sized from Table 16B, unless
authority having jurisdiction species a gravity
factor be applied. For other specic gravity, apply
gravity factor from Table 16. If exact specic
gravity is not shown choose next higher value.
For materials or conditions other than those listed
above, refer to National Fuel Gas Code, ANSI Z223.1/
NFPA 54 or Natural Gas and Propane Installation Code, CAN/CSA B149.1, or size system using standard
engineering methods acceptable to authority having
jurisdiction.
B. Connect boiler gas valve to gas supply
system.
Table 17A: Maximum Capacity of Schedule 40 Black Pipe in CFH* (Natural Gas) For Gas Pressures
of 0.5 psig or Less
Inlet Pressure 0.5 PSI or less; 0.3 Inch W.C. Pressure Drop
Inlet Pressure 0.5 PSI or less; 0.5 Inch W.C. Pressure Drop
Length of Pipe, Ft.
102030405060708090100
* 1 CFH of Natural Gas is approximately equal to 1 MBH; contact your gas supplier for the actual heating value of your
gas.
46
Page 47
VII. Gas Piping (continued)
Table 17B: Maximum Capacity of Schedule 40 Black Pipe in CFH* (LP Gas) For Gas Pressures
of 0.5 psig or Less
Inlet Pressure 11.0 Inch W.C.; 0.3 Inch W.C. Pressure Drop
Nominal
Pipe Size, In.
½0.62288604841373331292725
¾0.82418412610187777064605653
11.049346238191163145131121112105100
1¼1.380710488392336297269248231216204
1½1.6101064732588503446404371346324306
22.067205014091131968858778715666624590
2½2.46932672246180315431368123911401061995940
33.0685776397031882729241821912016187517601662
Nominal
Pipe Size, In.
½0.62211 6806455484440383533
¾0.8242421661341141019285797470
11.049456314252215191173159148139131
1¼1.380937644517442392355327304285269
1½1.6101403964775663588532490456427404
22.067270318581492127711311025943877823778
2½2.4694308296123772035180316341503139913121239
33.0687615523442033597318828892658247223202191
Inside
Diameter, In.
Inside
Diameter, In.
Length of Pipe, Ft.
102030405060708090100
Inlet Pressure 11.0 Inch W.C.; 0.5 Inch W.C. Pressure Drop
Length of Pipe, Ft.
102030405060708090100
* 1 CFH of LP Gas is approximately equal to 2.5 MBH; contact your gas supplier for the actual heating value
of your gas.
Table 18: Equivalent Lengths of Standard Pipe Fittings & Valves
Nominal
Pipe Size,
Inc.
½0.6220.417.38.74.30.71.63.51.63.1
¾0.8240.522.911.45.71.02.14.62.14.1
11.0490.629.114.67.31.22.65.82.65.2
1¼1.380.838.319.19.61.63.57.73.56.9
1½1.610.944.722.411.21.94.09.04.08.0
22.0671.257.428.714.42.45.211.55.210.3
2½2.4691.468.534.317.12.96.213.76.212.3
33.0681.885.242.621.33.67.717.17.715.3
Inside
Diameter,
In.
Valves (Screwed) - Fully OpenScrewed Fittings
180 Close
Return
Bend
90 Tee Flow
Through Run
Gate GlobeAngle
Swing
Check
45°
Elbow
90°
Elbow
90 Tee, Flow
Through
Branch
47
Page 48
VII. Gas Piping (continued)
Table 19: Specic Gravity Correction Factors
Specic
Gravity
0.601.000.900.82
0.650.961.000.78
0.700.931.100.74
0.750.901.200.71
0.800.871.300.68
0.850.811.400.66
Correction
Factor
Specic
Gravity
Correction
Factor
WARNING
Explosion Hazard. Failure to use proper
thread compounds on all gas connectors
may result in leaks of ammable gas.
Gas supply to boiler and system must be
absolutely shut off prior to installing or
servicing boiler gas piping.
1. Use methods and materials in accordance
with local plumbing codes and requirements of gas
supplier. In absence of such requirements, follow
National Fuel Gas Code, ANSI Z223.1/NFPA 54
and/or Natural Gas and Propane Installation Code,
CAN/CSA B149.1.
2. Use thread (joint) compounds (pipe dope)
resistant to action of liqueed petroleum gas.
3. Phantom boilers have factory supplied
Miscellaneous Part Carton which includes gas
piping components to connect boiler gas valve to
gas supply system. Install these components prior
to connecting boiler to gas supply system piping as
follows:
a. Locate and remove either ½ in. NPT x 6 in. long
black nipple and ½ in. NPT external gas shutoff
valve (PHNTM210), or ¾ in. NPT x 6 in. long
black nipple and ¾ in. NPT external gas shutoff
valve (PHNTM285 only).
b. Feed the appropriate nipple through factory
installed jacket left side panel grommet (refer
to Figure 1A or 1B for gas supply connection
identication) and screw the nipple into boiler
gas valve inlet port.
c. Mount the appropriate external gas shutoff valve
onto the threaded nipple end outside of the jacket
left side panel.
d. Install sediment trap, ground-joint union and
manual shut-off valve upstream of mounted
factory supplied manual shut-off valve. See
Figure 25.
4. All above ground gas pipin
g upstream
from manual shut-off valve must be electrically
continuous and bonded to a grounding electrode. Do
not use gas piping as grounding electrode. Refer to
National Electrical Code, NFPA 70.
C. Pressure test. See Table 20 for Phantom Min./Max.
Pressure Ratings. The boiler and its gas connection
must be leak tested before placing boiler in operation.
1. Protect boiler gas control valve. For all testing
over ½ psig, boiler and its individual shutoff valve
must be disconnected from gas supply piping. For
testing at ½ psig or less, isolate boiler from gas
supply piping by closing boiler’s individual manual
shutoff valve.
2. Locate leaks using approved combustible gas
non-corrosive leak detector solution.
Table 20: Min./Max. Pressure Ratings
Natural Gas
Min. Pressure
Inlet to Gas
Valve
(in. w.c.)
Boiler
Model No.
PHNTM210
PHNTM285
Natural/LP
Gas Max.
Pressure
(in. w.c.)
144.011.0
Figure 25: Recommended Gas Piping
LP Gas
Min.
Pressure
Inlet to Gas
Valve
(in. w.c.)
DANGER
Explosion Hazard. Do not use matches, candles,
open ames or other ignition source to check for
leaks.
48
Page 49
VII. Gas Piping (continued)
E. Gas Piping for Multiple Boiler Installation
1. Individual module (boiler) gas pipe sizing
specic details - see Paragraph A.
2. Individual module (boiler) recommended gas
piping detail - see Figure 25.
3. An additional gas pressure regulator(s) may need
to be installed to properly regulate inlet gas pressure
at the smallest individual module (boiler).
CAUTION
If gas pressure in the building is above ½ psig
(3.4 kPa), an additional gas pressure regulator
is required. Using one additional regulator
for multiple boilers may result in unsafe boiler
operation. The additional regulator must be able
to properly regulate gas pressure at the input
of the smallest boiler. If the regulator cannot
do this, two or more additional regulators are
required. Consult regulator manufacturer and/or
local gas supplier for instructions and equipment
ratings.
49
Page 50
VIII. Electrical
DANGER
Electrical Shock Hazard. Positively assure all electrical connections are unpowered before attempting
installation or service of electrical components or connections of the boiler or building. Lock out all
electrical boxes with padlock once power is turned off.
WARNING
Electrical Shock Hazard. Failure to properly wire electrical connections to the boiler may result in
serious physical harm.
Electrical power may be from more than one source. Make sure all power is off before attempting any
electrical work.
Each boiler must be protected with a properly sized over-current device.
Never jump out or make inoperative any safety or operating controls.
The wiring diagrams contained in this manual are for reference purposes only. Each boiler is shipped
with a wiring diagram attached to the front door. Refer to this diagram and the wiring diagram of any
controls used with the boiler. Read, understand and follow all wiring instructions supplied with the
controls.
IMPORTANT
This boiler is equipped with a feature that saves energy by reducing the boiler water temperature as the
heating load decreases. This feature is equipped with an override which is provided primarily to permit the
use of an external energy management system that serves the same function. THIS OVERRIDE MUST NOT
BE USED UNLESS AT LEAST ONE OF THE FOLLOWING CONDITIONS IS TRUE:
• An external energy management system is installed that reduces the boiler water temperature as
the heating load decreases.
• This boiler is not used for any space heating.
• This boiler is part of a modular or multiple boiler system having a total input of 300,000 BTU/hr or
greater.
• This boiler is equipped with a tankless coil.
NOTICE
This boiler is equipped with a high water temperature limit located inside the internal wiring of the
boiler. This limit provides boiler shutdown in the event the boiler water temperature exceeds the set
point of the limit control. Certain local codes require an additional water temperature limit. In addition,
certain types of systems may operate at temperatures below the minimum set point of the limit
contained in the boiler.
If this occurs, install an additional water temperature limit (Honeywell L4006 Aquastat). Wire as
indicated in the Electrical Section of this manual.
All wire, wire nuts, controls etc. are installer supplied unless otherwise noted.
A. General. Install wiring and electrically ground boiler
in accordance with authority having jurisdiction or, in
the absence of such requirements, follow the National
Electrical Code, NFPA 70, and/or Canadian Electrical
Code Part 1, CSA C22.1 Electrical Code.
B. A separate electrical circuit must be run
from the main electrical service with an over-current
device/disconnect in the circuit. A service switch is
recommended and may be required by some local
jurisdictions. Install the service switch in the line
voltage “Hot” leg of the power supply. Locate the
service switch such that the boiler can be shut-off
without exposing personnel to danger in the event of
an emergency. Connect the main power supply and
ground to the 3 boiler wires (black, white and green)
located in the junction box at top left side of the boiler
jacket.
50
Page 51
VIII. Electrical (continued)
C. Refer to Figures 26 and 27 for details on the
internal boiler wiring.
Line Voltage (120 VAC) Connections - see Figure 26.
1. The line voltage connections are located in the
junction box on the left side of the vestibule. The
terminal block TB-1 in conjunction with terminal
screw identication label is attached to the junction
box combination cover/inside high voltage bracket.
2. The conductor insulation colors are:
a. Black – L1 line voltage “Hot”
b. White – L2 line voltage “Neutral” for boiler and
circulators
c. Red – Line voltage “Hot” for “Heating”
circulator, “System” circulator and “DHW”
circulator
d. Green – Ground connection
Low Voltage (24 VAC) Connections - see Figure 26.
3. The terminal block TB-2 in conjunction with
terminal screw identication label is attached to the
junction box front and located inside R7910 Control
compartment on the left side.
4. The connections are (listed identication
label top to bottom):
• 1 – “Heating Thermostat”
• 2 – “Heating Thermostat”
• 3 – “DHW Temperature Switch”
• 4 – “DHW Temperature Switch”
• 5 – “Outdoor Sensor”
• 6 – “Outdoor Sensor”
• 7 – “Header Sensor”
• 8 – “Header Sensor”
• 9 – “Remote Firing Rate -”
• 10 – “Remote Firing Rate +”
• 11 – “External Limit”
• 12 – “External Limit”
5. If the outdoor sensor is connected to
terminals 5 and 6 “Outdoor Sensor”, the boiler
will adjust the target space heating set point supply
water temperature downwards as the outdoor air
temperature increases. If used, this sensor should
be located on the outside of the structure in an area
where it will sense the average air temperature
around the house. Avoid placing this sensor in areas
where it may be covered with ice or snow. Locations
where the sensor will pick up direct radiation from
the sun should also be avoided. Avoid placing the
sensor near potential sources of electrical noise
such as transformers, power lines, and uorescent
lighting. Wire the sensor to the boiler using 22
gauge or larger wire. As with the sensor, the sensor
wiring should be routed away from sources of
electrical noise. Where it is impossible to avoid such
noise sources, wire the sensor using a 2 conductor,
UL Type CM, AWM Style 2092, 300 Volt 60°C
shielded cable. Connect one end of the shielding on
this cable to ground.
NOTICE
When making low voltage connections, make
sure that no external power source is present
in the thermostat or limit circuits. If such a
power source is present, it could destroy the
boiler’s microprocessor control. One example
of an external power source that could be
inadvertently connected to the low voltage
connections is a transformer in old thermostat
wiring.
D. Power Requirements
Nominal boiler current draw is provided in Table
21. These values are for planning purposes only
and represent only the boiler’s power consumption.
To obtain total system power consumption add any
selected circulator and component current draws.
Table 21: Boiler Current Draw
Model Number
PHNTM210<3
PHNTM285<5
E. Multiple Boiler Wiring
Install over-current protection in accordance with
authority having jurisdiction or, in the absence of
such requirements, follow the National Electric Code,
NFPA 70, and/or Canadian Electrical Code Part 1,
CSA C22.1. Do not provide over-current protection
greater than 15 amperes. If it becomes necessary to
provide greater amperes (because of the number of
boilers provided) use separate circuits and over-current
protection for additional boilers.
F. External Multiple Boiler Control System
This boiler is equipped with a Honeywell R7910 Control
which has a built-in sequencer for multiple boiler operation.
The R7910 control also accepts a 4-20 mA input from an
external sequencer. Follow multiple boiler control system
manufacturer (Honeywell, Tekmar, etc.) instructions to
properly apply a multiple boiler control system.
Nominal Current
(amps)
51
Page 52
VIII. Electrical (continued)
52
Page 53
VIII. Electrical (continued)
Figure 26: Wiring Connections Diagram
53
Page 54
VIII. Electrical (continued)
Figure 27: Ladder Diagram
54
Page 55
VIII. Electrical (continued)
Figure 28A: Modied Wiring For DHW Priority When Using Low Flow Circulator Piped Off System Header -
Heating (with Central Heating Circulators) Plus Alternately Piped Indirect Water Heater
55
Page 56
VIII. Electrical (continued)
Heating (with Central Heating Zone Valves) Plus Alternately Piped Indirect Water Heater
Figure 28B: Modied Wiring For DHW Priority When Using Low Flow Circulator Piped Off System Header -
56
Page 57
VIII. Electrical (continued)
CROWN PN 3501505
Figure 28C: DHW Priority/Circulators (with Crown PN 3501505 Zone Panel) Piped Off
System Header Wiring Schematic for Heating Zone Circulators
57
Page 58
VIII. Electrical (continued)
Figure 29A: Multiple Boiler Wiring Diagram
Internal R7910 Multiple Boiler Control Sequencer
(Three Boilers Shown, Typical Connections for up to Eight Boilers)
58
Page 59
VIII. Electrical (continued)
Figure 29B: Boiler-to-Boiler Communication (with Crown Zone Panel PN 3501505)
59
Page 60
VIII. Electrical (continued)
G. Multiple Boiler Operating Information
1. Required Equipment and Setup
a. Header Sensor (Honeywell 32003971-003)
A header sensor must be installed and wired
to the Master Sequencer “enabled” R7910
Controller. The header sensor is installed on the
common system piping and provides blended
temperature information to the Sequence
Master. Refer to piping diagram Figure 23A for
installation location and Figure 30 for installation
detail.
b. Ethernet Cables
Ethernet cables are used to connect the boiler
network together. These are standard “straight
through” cables that can be purchased at
electrical distributors.
Alternately, the network can be wired together
by simply wiring terminal J3, Modbus 2,
terminals A, B and V- between each boiler.
Refer to Figures 26 and 27 terminal J3 for wiring
location.
c. RJ45 Splitters
When Ethernet cables are used to connect three
or more boilers together, RJ45 Splitters are
required. When two boilers are connected the
splitter is not required.
Figure 30: Recommended “Immersion”
Type Header Sensor Installation Detail
Figure 31: RJ45 Splitter Installation Detail
60
Page 61
VIII. Electrical (continued)
d. Multiple Boiler Setup
StepDescriptionComments
Wire the header sensor to low voltage terminal strip terminals “Header sensor”.
Install and wire the Header
1
Sensor
Install Ethernet Cables
2
between boilers
3Apply Power to All Boilers
Set Unique Boiler
4
Addresses
5Enable 1 Boiler Master
6Power Down All Boilers
Power Up Master
7
Sequencer
“Enabled” Boiler First
This step can not be skipped. The Sequence Master can not be “enabled”unless a Header
Sensor is installed.
Standard Ethernet type cables with RJ45 connectors are “plugged in” to the Boiler-to-Boiler
Communication Network connection located on the side of the boiler. When more than two
boilers are connected an RJ45 splitter may be used to connect the boilers. Refer to Figure
31.
Assign all boilers a unique Boiler Address using any number from 1 through 8.
When two boiler’s addresses are the same undesirable simultaneous operation occurs.
Enable only one Control’s Sequencer Master.
When more than one Sequencer Master is enable erratic behavior will result.
NOTE
WARNING
WARNING
8Power Up Other Boilers
9Conrm Communication
From the Home Screen of the Control with the Master Sequencer “enabled”, select the Status
button. The Sequencer display shows the boiler address of the communicating boilers.
Additionally, from the “Home” screen select the “Detail” button and then the “Networked
Boilers” buttons to view boiler communication status.
If a boiler is not shown, check Ethernet cable connections and conrm all boilers have unique
addresses.
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Page 62
IX. System Start-up
WARNING
Explosion Hazard. Asphyxiation Hazard.
Electrical Shock Hazard. Start-up of this boiler
should be undertaken only by trained and skilled
personnel from a qualied service agency.
Follow these instructions exactly. Improper
installation adjustment, service or maintenance
can cause property damage, personal injury or
loss of life.
A. Verify that the venting, water piping, gas
piping and electrical system are installed
properly.
in this manual.
Refer to installation instructions contained
B. Conrm all electrical, water and gas
supplies are turned off at the source
vent is clear of obstructions.
and that
C. Conrm that all manual shut-off gas valves
between the boiler and gas source are closed.
D. If not already done, ush the system to remove
sediment, ux and traces of boiler additives. This must
be done with the boiler isolated from the system. Fill
entire heating system with water meeting the following
requirements:
NOTICE
pH between 7.5 and 9.5.
If system contains aluminum components, pH
must be less than 8.5
Chlorides< 50 ppm
Total Dissolved Solids - less than 2500 PPM
Hardness - 3 to 9 grains/gallon.
F. Prepare to check operation.
1. Obtain gas heating value (in Btu per cubic foot)
from gas supplier.
2. Phantom gas valves have inlet and outlet
pressure taps with built-in shut off screw. Turn
each screw from fully closed position three to four
turns counterclockwise to open taps. Connect
manometers to pressure taps on gas valve.
NOTICE
If it is required to perform a long term pressure
test of the hydronic system, the boiler should
rst be isolated to avoid a pressure loss due to
the escape of air trapped in the boiler.
To perform a long term pressure test including
the boiler, ALL trapped air must rst be removed
from the boiler.
A loss of pressure during such a test, with no
visible water leakage, is an indication that the
boiler contained trapped air.
3. Temporarily turn off all other gas-red
appliances.
4. Turn on gas supply to the boiler gas piping.
5. Open the eld installed manual gas shut-off valve
located upstream of the gas valve on the boiler.
6. Conrm that the supply pressure to the gas valve
is 13.5 in wc (3.4 kPa) or less. Refer to Table 20 for
minimum supply pressure.
7. Using soap solution, or similar non-combustible
solution, electronic leak detector or other approved
method, check that boiler gas piping valves, and
all other components are leak free. Eliminate any
leaks.
Pressurize the system to at least 20 psi (140 kPa).
Purge air from the system.
WARNING
Burn Hazard. The maximum operating pressure
of this boiler is 30 psig (210 kPa), 50 psig
(340 kPa), 80 psig (550 kPa) or 100 psig (689 kPa)
depending on the model and safety relief valve
option selected. Never exceed the maximum
allowable working pressure on the heat
exchanger ASME plate.
E. Conrm that the boiler and system have no
water leaks.
DANGER
Explosion Hazard. Do not use matches, candles,
open ames or other ignition source to check for
leaks.
8. Purge gas line of air.
G. Operating Instructions
Start the boiler using the Operating Instructions, see
Figure 32. After the boiler is powered up, it should go
through sequence of operation shown in Table 28.
H. Purge Air From Gas Train
Upon initial start-up, the gas train will be lled with air.
Even if the gas line has been completely purged of air,
it may take several tries for ignition before a ame is
62
Page 63
IX. System Start-up (continued)
Phantom Series Lighting and Operating Instructions
Figure 32: Operating Instructions
63
Page 64
IX. System Start-up (continued)
StatusControl Action
InitiatePower-up
This state is entered when a delay is
Standby Delay
Standby
Safe Startup
Drive Purge
Prepurge
Drive Light-off
Pre-ignition
Test
Pre-ignition
Direct
Ignition
Running
Postpurge
Lockout
needed before allowing the burner control
to be available and for sensor errors.
Boiler is not ring. There is no call for
heat or there is a call for heat and the
temperature is greater than setpoint.
Tests ame circuit then checks for ame
signal.
Driving blower to purge rate setting and
waiting for the proper fan feedback.
Purges the combustion chamber for the
10 second purge time.
Driving blower to light-off rate setting and
waiting for the proper fan feedback.
Tests the safety relay and veries that
downstream contacts are off.
Energizes the igniter and checks for
ame.
Opens main fuel valve and attempts
to ignite the main fuel directly from the
ignition source.
Normal boiler operation. Modulation rate
depends on temperature and setpoint
selections and modulating control action.
Purges the combustion chamber for the
30 second purge time.
Prevents system from running due to a
detected problem and records fault in
Lockout History.
established. If more than 2 tries for ignition are needed,
it will be necessary to press the reset button to restart
the boiler. Once a ame has been established for the
rst time, subsequent calls for burner operation should
result in a ame on the rst try.
I. Check Burner Flame
Inspect the ame visible through the window. On high
re the ame should be stable and mostly blue (Figure
33). No yellow tipping should be present; however,
intermittent ecks of yellow and orange in the ame are
normal.
J. Check Gas Inlet Pressure
Check the inlet pressure and adjust if necessary. Verify
that the inlet pressure is between the upper and lower
limits shown on the rating plate with all gas appliances
on and off.
WARNING
Asphyxiation Hazard. The outlet pressure for
the gas valve has been factory set and requires
no eld adjustment. This setting is satisfactory
for both natural gas and propane. Attempting to
adjust the outlet pressure may result in damage
to the gas valve and cause property damage,
personal injury or loss of life.
K. For LP Gas, perform procedure as described
in Paragraph Q “Field Conversion From Natural Gas to
LP Gas”.
L. Perform Combustion Test
WARNING
Asphyxiation Hazard. Each Phantom
Series boiler is tested at the factory and
adjustments to the air fuel mixture are
normally not necessary. Improper gas
valve or mixture adjustments could result in
property damage, personal injury or loss of
life.
Any gas valve adjustments (throttle and/
or offset) specied herein and subsequent
combustion data (%O
collection must be performed using a
calibrated combustion analyzer.
Failure to use combustion analyzer could
result in property damage, personal injury
or loss of life.
1. Remove ue temperature sensor from vent
connector (see Figure 9) and insert combustion
analyzer probe through ue temperature sensor
cap opening. If required, also remove the ue
temperature sensor silicon cap and insert the
analyzer probe directly into ue sensor port.
Reinstall the sensor and the cap upon combustion
testing completion.
2. Verify O2 (or CO2) and CO are within limits
specied in Table 22 (natural gas) or Table 23 (LP
gas) at both high and low re as described in the
following steps.
2
, %CO2, CO ppm)
Figure 33: Burner Flame
64
Page 65
IX. System Start-up (continued)
a. Lock boiler in high re and allow boiler to
operate for approximately 5 minutes before
taking combustion readings. To lock boiler in
high re, from the home screen, press “Adjust”,
Table 22: Typical Combustion Settings,
Natural Gas
Boiler
Model
PHNTM210
PHNTM285
% CO
9.9 - 8.2
(High Fire)
9.9 - 7.9
(Low Fire)
Altitude Range
0 - 7000 Ft.
% O2 RangeCO, PPM
2
3.5 - 6.5
(High Fire)
3.5 - 7.0
(Low Fire)
Less than
100 PPM
Table 23: Typical Combustion Settings, LP Gas
Boiler
Model
PHNTM210
PHNTM285
% CO
11.4 - 9.5
(High Fire)
11.4 - 9.1
(Low Fire)
Altitude Range
0 - 7000 Ft.
2
% O2 RangeCO, PPM
3.5 - 6.5
(High Fire)
3.5 - 7.0
(Low Fire)
Less than
100 PPM
“Adjust”, “Login”, “000”. Enter the password
“086” and press return arrow to close the keypad.
Press “Save”, “Adjust”, “High” to lock boiler in
high re.
WARNING
Make sure that all adjustments at high re are
made with the throttle, not offset screw (see
Figure 34). The offset screw has been factory set
using precision instruments and must never be
adjusted in the eld unnecessarily.
Attempting to adjust the offset screw
unnecessarily could result in damage to the gas
valve and may cause property damage, personal
injury or loss of life.
to both gas valves equally and simultaneously.
Refer to Figure 34 for location of throttle screw.
Verify CO is less than 100 ppm.
d. Lock boiler in low re and allow boiler to
operate for approximately 5 minutes before
taking combustion readings. Press “Low” to
lock boiler in low re.
WARNING
Asphyxiation Hazard. Offset screw is adjusted
at the factory to the specication. DO NOT
touch the offset screw if measured low re O2 (or
CO2) is within limits specied in Table 22 or 23.
e. If low re O
is too low (CO2 is too high),
2
increase O2 (decrease CO2) by turning offset
screw counterclockwise in less than 1/8 turn
increments and checking the O
(or CO2) after
2
each adjustment. If boiler is equipped with 2 gas
valves, offset screw adjustments must be done
to both gas valves equally and simultaneously.
Refer to Figure 34 for location of offset screw.
Verify CO is less than 100 ppm.
f. If low re O2 is too high (CO2 is too low),
decrease O2 (increase CO2) by turning offset
screw clockwise in less than 1/8 turn increments
and checking the O2 (or CO2) after each
adjustment. If boiler is equipped with 2 gas
valves, offset screw adjustments must be done
to both gas valves equally and simultaneously.
Refer to Figure 34 for location of offset screw.
Verify CO is less than 100 ppm.
WARNING
Asphyxiation Hazard. Install ue temperature
sensor and sensor cap into two-pipe vent
connector port upon completion of combustion
test. Failure to properly secure the ue
temperature sensor into the port could lead to
property damage, personal injury or loss of life.
b. If high re O
is too low (CO2 is too high),
2
increase O2 (decrease CO2) by turning the throttle
screw clockwise in 1/4 turn increments and
checking the O2 (or CO2) after each adjustment.
Refer to Figure 34 for location of throttle screw.
Verify CO is less than 100 ppm.
c. If high re O2 is too high (CO2 is too low),
decrease O2 (increase CO2) by turning the
throttle screw counter-clockwise in 1/4 turn
increments and checking the O2 (or CO2) after
each adjustment. If boiler is equipped with 2 gas
valves, throttle screw adjustments must be done
3. Reinstall ue temperature sensor with sensor
cap at two-pipe vent adapter.
a. Inspect ue temperature sensor cap for
degradation. Replace if needed.
b. Use Molykote 111 grease to lubricate outer
surface of two-pipe vent adapter stub where ue
temperature sensor is inserted. Also lubricate
tip of ue temperature sensor. Reinstall ue
temperature sensor with cap into two-pipe vent
adapter.
4. Return boiler to normal operating mode by
pressing “Auto”.
65
Page 66
IX. System Start-up (continued)
M. Test Safety Limits Controls
1. Test the ignition system safety shut-off by
disconnecting the ame sensor connector (black
plug with orange wire) from the ame ionization
electrode. See Figure 26. The boiler must shut
down and must not start with the ame sensor
disconnected.
2. Test any other external limits or other controls
in accordance with the manufacturer’s instructions.
N. Check Thermostat Operation
Verify that the boiler starts and stops in response to
calls for heat from the heating thermostat and indirect
water heater thermostat. Make sure that the appropriate
circulators also start and stop in response to the
thermostats.
WARNING
Explosion Hazard. Asphyxiation Hazard.
This conversion should be performed by a
qualied service agency in accordance with the
manufacturer’s instructions and all applicable
codes and requirements of the authority
having jurisdiction. If the information in these
instructions is not followed exactly, a re, an
explosion or production of carbon monoxide
may result causing property damage, personal
injury, or loss of life. The qualied service
agency is responsible for proper conversion of
these boilers. The conversion is not proper and
complete until the operation of the converted
appliance is checked as specied in this manual.
O. Adjust Supply Water Temperature
As shipped, the heating set point supply temperature
is set to 180°F (82.2°C) and, indirect water heater set
point supply temperature is set to 170°F (76.7°C). If
necessary, adjust these to the appropriate settings for
the type of system to which this boiler is connected.
See Section X “Operation” (Parameter Table 29) of
this manual for information on how to adjust supply
setpoint.
P. Adjust Thermostats
Adjust the heating and indirect water heater thermostats
to their nal set points.
Q. Field Conversion From Natural Gas to LP
Gas
Phantom models PHNTM210 and PHNTM285
are factory shipped as natural gas builds. Models
congured for use at altitudes below 7000ft can be
eld converted to LP gas. Follow steps below for eld
conversion from natural gas to LP Gas.
1. Conversion of Phantom models PHNTM210
and PHNTM285 from one fuel to another is
accomplished using the throttle screw on the gas
valve. Figure 34 “Gas Valve Detail” shows the
location of the throttle screw on the valve. Locate
the throttle screw on the boiler being converted.
2. If conversion is being made on a new
installation, install the boiler in accordance
with the installation instructions supplied with the
boiler. If an installed boiler is being converted,
connect the new gas supply to the boiler, check for
gas leaks, and purge the gas line up to the boiler
in accordance with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 and/or Natural Gas and Propane Installation Code, CAN/CSA B149.1 or the
requirements of the authority having jurisdiction.
3. Before attempting to start the boiler, make the
number of turns to the throttle screw called for in
Table 24.
4. Attempt to start the boiler using the Operating
Instructions located inside the lower front cover of
the boiler. If the boiler does not light on the rst
try for ignition, allow to boiler to make at least
four more attempts to light. If boiler still does not
light, turn the throttle counter clockwise in 1/4 turn
increments, allowing the boiler to make at least
three tries for ignition at each setting, until the boiler
lights.
WARNING
Asphyxiation Hazard. The throttle adjustments
shown in Table 24 are approximate. The
nal throttle setting must be found using a
combustion analyzer. Leaving the boiler in
operation with a CO level in excess of the value
shown in Table 23 could result in injury or death
from carbon monoxide poisoning.
5. After the burner lights, complete all steps
outlined in Paragraph L “Perform Combustion Test”
before proceeding.
66
Page 67
IX. System Start-up (continued)
6. Verify that the gas inlet pressure is between the
upper and lower limits shown in Table 20 with all
gas appliances (including the converted boiler) both
on and off.
WARNING
Asphyxiation Hazard. These instructions
include a procedure for adjusting the air-fuel
mixture on this boiler. This procedure requires a
combustion analyzer to measure the O2 (or CO2)
and Carbon Monoxide (CO) levels in ue gas.
Adjusting the air-fuel mixture without a proper
combustion analyzer could result in unreliable
boiler operation, personal injury, or death due to
carbon monoxide poisoning.
7. A label sheet is provided with the boiler for
conversions from natural gas to LP gas. Once
conversion is completed, apply labels as follows:
a. Apply the “Rating Plate Label” adjacent to the
rating plate.
b. Apply the “Gas Valve Label” to a conspicuous
area on the gas valve.
c. Apply the “Boiler Conversion Label” to a
conspicuous surface on, or adjacent to, the outer
boiler jacket. Fill in the date of the conversion
and the name and address of the company
making the conversion with a permanent marker.
Table 24: Number of Clockwise Throttle Screw
Turns for LP Conversion
Throttle Screw Turns at
Boiler ModelGas Valve
Dungs
PHNTM210
PHNTM285
GB-055
(½” NPT)
Dungs
GB-057
(¾” NPT)
Altitude Range
0 - 7000 Ft.
2¾
4
3¼
4
4½
R. Correcting Throttle Screw Mis-Adjustment
(if required)
Phantom boilers are re tested at factory and gas
valve throttle screws are preset. However, if boiler
does not start when rst turned on, and, the problem
cannot be remedied following “Help” prompts on the
boiler control display, it may be necessary to reset and
readjust the throttle screw according to the following
instructions.
1. Fully close throttle by turning throttle screw
clockwise until it fully stops.
2. Open throttle screw counter-clockwise the
number of full (360 degrees) and partial turns listed
in Table 25A for natural gas or Table 25B for LP
gas.
3. Follow instructions in Section L “Perform
Combustion Test” to verify O2 (or CO2) is within the
range specied in Table 22 for natural gas or Table
23 for LP gas at both high re and low re.
Figure 34: Dungs Gas Valve Detail
WARNING
The throttle adjustment values shown in Table
25A and Table 25B are approximate. The
nal throttle setting must be found using a
combustion analyzer.
67
Page 68
IX. System Start-up (continued)
Table 25A: Approximate Throttle Screw
Adjustment Values from Fully Closed
Position, Natural Gas
Boiler
Model
PHNTM2109 &1/2
PHNTM2859
(Number of Counter-clockwise Turns
Throttle Position
from Fully Closed Position
Table 25B: Approximate Throttle Screw
Adjustment Values from Fully Closed
Position, LP Gas
Boiler
Model
PHNTM2105 & 1/2
PHNTM2854 & 1/2
Throttle Position (Number of Counter-
clockwise Turns from Fully Closed
Position
WARNING
Asphyxiation Hazard. If the throttle is very far out of adjustment on the “rich” (counter-clockwise) side,
the boiler burner may be running at 0% excess air or even with air deciency. Operating the boiler in this
condition may cause property damage, personal injury or loss of life.
Under these conditions most combustion analyzers used in the eld will show 0% O2 and a very high (well
over 1000 ppm) CO. Combustion readings will also appear to be unresponsive to throttle adjustment.
If the boiler appears to operate under these conditions, shut down the boiler and follow instructions in
Paragraph S “Correcting Throttle Screws Mis-Adjustment. Then, use a combustion analyzer to verify and
adjust O2 (or CO2) and CO to values shown in Table 22 for natural gas or Table 23 for LP gas.
68
Page 69
IX. System Start-up (continued)
S. Controls Startup Check List
The Control is factory programmed with default parameters. Before operating the boiler, these parameters must be checked
and adjusted as necessary to conform to the site requirements. Follow the steps below, making selections and adjustments as
necessary to ensure optimal boiler operation.
No.TitleTerminalDescription
1 & 2
2 & 3Is an Indirect Water Heater (IWH) providing a boiler heat demand?
5 & 6
1
From the Home Screen press the Adjust button and login to access the adjust mode screens (if required, refer to X. Operation
Section, “Entering Adjustment Mode” Paragraph G, 1 for login instructions). The following parameters should be reviewed:
No.MenuParameterDescription
2
3
4
5
6
7
8DHW
9
10SequencerMaster Slave
Check
Wiring
System
Setup
Modulation
Setup
Pump
Setup
Contractor
Setup
Manual
Control
Central
Heat
Remote
4-20mA
7 & 8Is a header sensor used? If yes, refer to step 10 below to activate this feature.
9 & 10
11 & 12Is an External Limit used? Remember to remove factory-installed jumper.
LWCO PlugIs a LWCO required? Check installation of the LWCO.
Warm Weather
Shutdown
Warm Weather
Shutdown Setpoint
Boiler Type
System Pump
Boiler Pump
Domestic Pump
Contractor Name
Address
Phone
Manual Speed
Control
SetpointEnsure Setpoint, (ring rate target temperature) is correct for your type of radiation.
Setback
Setpoint
SetpointEnsure Setpoint, (ring rate target temperature) is suitable for the IWH requirements.
Setback
Setpoint
Modulation Source
Setpoint SourceSet to 4-20mA when a Energy Management system is sending a “remote” setpoint.
Is the heating thermostat connected? Insure this is “dry”, non-powered input.
Is an Outdoor Air sensor used? If no, select outdoor sensor type “not installed” under
system menu.
Is a Remote 4-20mA required for a Energy Management System or external multiple
boiler control? If used see step 9 below to activate this input.
Selecting “Enable” will restrict boiler start during warm weather (only if an outdoor air
temperature sensor is installed).
Use this setting to adjust the temperature that the WWSD function will shut boiler off.
WARNING
Conrm that the correct boiler model is shown. Stop installation and contact factory if
the wrong boiler model is shown.
Ensure that the pump parameter selections are correct for your heating system. Refer
to Paragraph G. Adjusting Parameters, Pump Setup Menu for additional information.
Enter your contactinformation, name, address, and phone number on this screen.
In the event of a fault or the need to adjust a setting the display will direct the
homeowner to you.
Use the “High and “Low” options to force the boiler to high re and low re for
combustion testing.
Check the setting for the central heat setpoint when the T-Stat “Sleep” or “Away”
Setback mode is entered (if EnviraCOM Setback thermostat is used).
Check the setting for the DHW setpoint when the T-Stat “Sleep” or “Away” Setback
mode is entered (if EnviraCOM Setback thermostat is used).
Set to 4-20mA when an external multiple boiler controller is connected to the system.
Refer to Sequencer Master Setup Section X, G if multiple boilers are installed at this
site.
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Page 70
X. Operation
A. Overview
1. R7910 Controller
The R7910 Controller (Control) contains features and
capabilities which help improve heating system operation,
and efciency. By including unique capabilities, the Control
can do more, with less eld wiring, and fewer aftermarket
controls and components – improving the operation of both
new and replacement boiler installations.
2. Advanced Touch Screen Display
Home Screen
Boiler status and setup selections are available from an
easy to use, dual color, LCD Touch Screen Display. Over
one hundred helpful information screens are provided to
explain status information and setup functions. In the event
of a fault condition the user is guided by “blinking” touch
buttons to Help screens that explain the problem cause and
corrective action. Operation evaluation and problem-solving
is enhanced by historical capability including graphic trends,
lockout history records as well as boiler and circulator cycle
counts and run time hours.
3. Advanced Modulating Control
The Control modulates the boiler input by varying the fan
speed. As the fan speed increases, so does the amount of
fuel gas drawn into the blower. As a result, a fairly constant
air-fuel ratio is maintained across all inputs. The Control
determines the input needed by looking at both current and
recent differences between the measured temperature and
the setpoint temperature. As the measured temperature
approaches the setpoint temperature, the fan will slow down
and the input will drop. The Control also utilizes boiler
return water and ue gas temperatures to adjust fan speed.
4. HeatMatchTM Software
When the boiler is installed with a Crown 3501505 Zone
Control Panel (Zone Control) into a multiple zone home
the Control uses a patent pending HeatMatch Software to
improve home comfort, increase component life and save
energy. The R7910 Controller with the Zone Control detects
active (turned “on”) zones, totals btu/hrs expected and limits
the boiler ring rate to “match” actual home demand. Instead
of simply ring to 100% in response to a cold supply water
temperature the Control combines heat matching with supply
water temperature control. The result is longer run times,
dramatic reduction in boiler excessive cycling and higher
operating efciency. Avoiding extra cycling saves customer
fuel dollars (pre and post purge sends heat up stack) and
saves wear and tear on the boiler. Lowering the boiler’s
ring rate saves fuel dollars by increasing the amount of
ue gas condensation, always the goal of condensing boiler
installations.
5. Built-in Safety Control
The Control includes safety controls designed to ensure
safe and reliable operation. In addition to ame safety
controls the Control includes supply water temperature,
differential water temperature, and stack temperature
safety limits and stepped modulation responses. Boiler
modulation is adjusted when required to help avoid loss of
boiler operation due to exceeding limits. Additionally, the
Control accepts the eld installation of optional auxiliary
safety limits.
6. Outdoor Air Reset
When selected the modulation rate setpoint is automatically
adjusted based on outside air temperature, time of day and
length of demand (boost) settings. Outdoor air “reset”
setpoint saves fuel by adjusting the water temperature
of a heating boiler lower as the outside air temperature
increases.
7. Warm Weather Shutdown (WWSD)
Some boilers are used primarily for heating buildings,
and the boilers can be automatically shutdown when
the outdoor air temperature is warm. When outside air
temperature is above the WWSD setpoint, this function
will shut down the boiler and system pump.
8. Energy Management System (EMS) Interface
The control accepts a 4-20mAdc input from the EMS
system for either direct modulation rate or setpoint.
A factory congured RS485 Modbus interface is available
for Energy Management System (EMS)monitoring when
not used for Multiple Boiler Sequencer Peer-To-Peer
Network. Consult factory if this interface must be used
in addition to the boiler Peer-to-Peer Network.
9. Circulator Control
The Control may be used to sequence the domestic hot
water, boiler and system circulators. Service rated relay
outputs are wired to a line voltage terminal block for
all three pumps to respond properly to various hydronic
piping arrangements including either a boiler or primary
piped indirect water heater. Circulators are automatically
run for a 20 second exercise period after not being used
for longer than 7 days. Circulator exercise helps prevent
pump rotor seizing.
The Control includes state-of-the-art modulating lead-lag
sequencer for up to eight (8) boilers capable of auto rotation,
outdoor reset and peer-to-peer communication. The peerpeer network is truly “plug and play”. Communication
is activated by simply connecting a RJ45 ethernet cable
between boilers. The Control provides precise boiler
coordination by sequencing boilers based on both header
water temperature and boiler modulation rate. For example,
the lead boiler can be congured to start a lag boiler after
operating at 50% modulation rate for longer than an
adjustable time. The boilers are modulated in “unison”
(parallel) modulation rate to ensure even heat distribution.
70
Page 71
X. Operation
B. Supply Water Temperature Regulation
1. Priority Demand
The Control accepts a call for heat (demand) from multiple
places and responds according to it’s “Priority”. When
more than 1 demand is present the higher priority demand
is used to determine active boiler settings. For example,
when Domestic Hot Water (DHW) has priority the setpoint,
“Diff Above”, “Diff Below” and pump settings are taken
from DHW selections. Active “Priority” is displayed on
the “Boiler Status” screen.
Table 26: Order of Priority
Priority
Status Screen
Display
1stSequencer
Control
2ndDomestic Hot
Water
3rdCentral Heat Central Heat call for heat is on and there
4thAuxiliary Heat Auxiliary Heat call for heat is on and there is
5thFrost
Protection
6thWarm
Weather
Shutdown
(WWSD)
7thStandbyThere is no demand detected.
The boiler is connected to the peer-to-peer
network. The boiler accepts demand from
the Sequencer Master.
DHW call for heat is on and selected as
the priority demand. DHW is always higher
priority than Central Heat. It also has higher
priority than the Sequencer Control when
DHW priority is “enabled” and “Boiler Piped”
IWH is selected.
is no DHW demand or DHW priority time
has expired.
no Central Heat or DHW demand. (NOTE:
May be user selected to be higher priority
than Central Heat.)
Frost Protection is active and there is no
other call for heat. Frost protection will be a
higher priority than Sequencer Control if the
Sequence Master has no active call for heat.
WWSD is active and the boiler will not
respond to central heat demands. DHW
demand is not blocked by WWSD.
Boiler Responding to:
2. Setpoint Purpose
The Control starts and stops the boiler and modulates the
boiler input from minimum (MBH) to maximum (MBH) in
order to heat water up to the active setpoint. The setpoint
is determined by the priority (Central Heat or Domestic
Hot Water) and as described in the following paragraphs.
3. Central Heat Setpoint
Upon a Central Heat call for heat the setpoint is either the
user entered Central Heat Setpoint, or is automatically
adjusted by a thermostat’s “Sleep” or “Away” modes and/
or Outdoor Air Reset or, an Energy Management System
(EMS) supplied 4-20mAdc setpoint.
4. Auxiliary Heat Setpoint
Auxiliary Heat is a second heating demand that may be
used to serve either lower temperature radiation or warmer
heat demands such as fan coils. Upon an Auxiliary Heat
call for heat the setpoint is either the user entered Auxiliary
Heat Setpoint or is automatically adjusted as a thermostat’s
“sleep” or, Away Modes or, Outdoor Air Reset.
5. Outdoor Air Reset
If an outdoor temperature sensor is connected to the
boiler and Outdoor Reset is enabled, the Central Heat
and Auxiliary Heat setpoints will automatically adjusted
downwards as the outdoor temperature increases. When
the water temperature is properly matched to heating needs
there is minimal chance of room air temperature overshoot.
Excessive heat is not sent to the room heating elements
by “overheated” (supply water temperature maintained
too high a setting) water. Reset control saves energy by
reducing room over heating, reducing boiler temperature
losses as a boiler and system piping cool down to ambient
following room over heating.
6. Boost Time
When the Central Heat Setpoint is decreased by Outdoor
Air Reset settings the Boost function can be enabled to
increase the setpoint in the event that central heat demand
is not satised for longer than the Boost Time minutes.
The Boost feature increases the operating temperature
setpoint by 10°F (5.6°C) every 20 minutes (eld adjustable)
the central heat demand is not satised. This process will
continue until heat demand is satised (indoor air is at
desired temperature). Once the heat demand is satised,
the operating setpoint reverts to the value determined by
the Outdoor Air Reset settings. If Boost Time is zero, then
the boost function is not used.
7. Domestic Hot Water (DHW) Setpoint
Upon a DHW call for heat the setpoint is either the user
entered DHW setpoint or the Thermostat’s “Sleep” or
“Away” DHW setpoint. The optimal value of this setpoint
is established based on the requirements of the indirect
water heater.
8. Domestic Hot Water Priority (DHWP)
Some boilers are used primarily for building space heating,
but also provide heat for the domestic hot water users.
When the outdoor temperature is warm, the outdoor
reset setpoint may drop lower than a desirable domestic
hot water temperature. Also, often it is required to
quickly recover the indirect water heater. When DHWP
is enabled, heating circulators are stopped, the domestic
circulator is started and the domestic hot water setpoint is
established in response to a domestic hot water demand.
Priority protection is provided to allow the heating loop
to be serviced again in the event of an excessively long
domestic hot water call for heat.
9. “Setback” Setpoints
User adjustable Thermostat “Sleep” or “Away” Setback
Setpoints are provided for both Central Heat and
DHW demands. The Setback setpoint is used when the
EnviraCOM thermostat is in “leave” or “sleep” modes.
When setback is “on”, the thermostat setback setpoint shifts
the reset curve to save energy while the home is in reduced
room temperature mode. The Honeywell VisionPro IAQ
(part number TH9421C1004) is a “setback” EnviraCOM
enabled thermostat.
71
Page 72
X. Operation
C. Boiler Protection Features
1. Supply Water Temperature High Limit
The boiler is equipped with independent automatic
reset and a manual reset high limit devices. A supply
manifold mounted limit device provides the automatic
reset high limit. The automatic high limit is set to
200°F (93.3°C). The control monitors a supply water
temperature sensor that is also mounted in the supply
water manifold and an internal, manual reset high limit
If the temperature exceeds 210°F (98.9°C), a manual
reset hard lockout results. If the boiler is responding to
the internal Multiple Boiler Control Sequencer, Header
Sensor or, an External EMS demand, and the supply
water temperature increases above 190° F (87.7° C),
the control begins to reduce the blower maximum speed
setting and the temperature increases to 200° F (93.3°
C), a forced recycle results. Additionally, if the supply
temperature rises faster than the degrees Fahrenheit
per second limit, a soft lockout is activated.
2. High Differential Temperature Limit
The Control monitors the temperature difference
between the return and supply sensors. If this difference
exceeds 43°F (23.9°C), the control begins to reduce
the maximum blower speed. If temperature difference
exceeds 53°F (29.4°C), a forced boiler recycle results.
If the temperature difference exceeds 63°F (35°C), the
control will shut the unit down. The unit will restart
automatically once the temperature difference has
decreased and the minimum off time has expired.
3. Return Temperature Higher Than Supply
Temperature (Inversion Limit)
The Control monitors the supply and return temperature
sensors. If the return water temperature exceeds the
supply water temperature for longer than a limit time
delay, the Control shuts down the boiler and delays
restart. If the inverted temperature is detected more
than ve times, the boiler manual reset Hard Lockout is
set. This condition is the result of incorrectly attaching
the supply and return piping.
4. External Limit
An external limit control can be installed between
terminals 11 and 12 on the low voltage terminal strip.
Be sure to remove the jumper when adding an external
limit control to the system. If the external limit opens,
the boiler will shut down and an open limit indication
and error code are provided. If the limit installed is a
manual reset type, it will need to be reset before the
boiler will operate.
5. Boiler Mounted Limit Devices
The Control monitors individual limit devices:
pressure switch, high limit device, condensate level
switch, Thermal Link (ALP285B only), Burner Door
Thermostat with manual reset (ALP285B only) and
external limit (optional). If any of these limits open,
the boiler will shut down and an individual open limit
indication is provided.
6. Stack High Limit
The Control monitors the ue gas temperature sensor
located in the vent connector. If the ue temperature
exceeds 184°F (84.4°C), the control begins to reduce
the maximum blower speed. If the ue temperature
exceeds 194°F (90.0°C), a forced boiler recycle results.
If the ue temperature exceeds 204°F (95.6°C), the
control activates a manual reset Hard Lockout.
7. Ignition Failure
The Control monitors ignition using a burner mounted
ame sensor. In the event of an ignition failure, the
control retries (ALP080B through ALP285B) 5 times
and then goes into soft lockout for one hour.
8. Central Heating System Frost Protection
When enabled, Frost Protection starts the boiler and
system pump and res the boiler when low outside air
and low supply water temperatures are sensed. The
Control provides the following control action when
frost protection is enabled:
Table 27: Frost Protection
Device
Started
Boiler & System
Pump
BoilerSupply Water < 38°F (3.3°C) Supply Water > 50°F (10°C)
Outside Air < -22°F (-30°C)
Supply Water < 45°F (7.2°C)
FROST PROTECTION NOTE
The Control helps provide freeze protection for the boiler
water. Boiler ue gas condensate drain is not protected from
freezing. Since the Control only controls the system and
boiler circulators individual zones are not protected. It is
recommended that the boiler be installed in a location that is
not exposed to freezing temperatures.
Start
Temperatures
Stop
Temperatures
Outside Air > -18°F (-28°C)
Supply Water > 50°F (10°C)
72
Page 73
X. Operation
D. Multiple Boiler Control Sequencer
1. “Plug & Play” Multiple Boiler Control Sequencer
When multiple boilers are installed, the Control’s
Sequencer may be used to coordinate and optimize
the operation of up to eight (8) boilers. Boilers are
connected into a “network” by simply “plugging in”
standard ethernet cables into each boiler’s “Boiler-ToBoiler Communication” RJ45 connection.
2. Sequencer Master
A single Control is parameter selected to be the Sequencer
Master. The call for heat, outdoor and header sensors,
and common pumps are wired to the Sequencer Master
“enabled” Control.
3. Lead/Slave Sequencing & Equalized Run Time
One boiler is a “Lead” boiler and the remaining networked
boilers are “Slaves”. When demand is increasing, the
Lead boiler is the rst to start and the Slave boilers are
started in sequential order (1,2,3,…) until the demand
is satised. When demand is decreasing, the boilers are
stopped in reverse order with the Lead boiler stopped
last (…,3,2,1). To equalize the run time the sequencer
automatically rotates the Lead boiler after 24 hours of
run time.
4. Improved Availability
The following features help improve the heat availability:
a. Backup Header Sensor: In the event of a header sensor
failure the lead boiler’s supply sensor is used by the
Sequence Master to control ring rate. This feature
allows continued coordinated sequencer control even
after a header sensor failure.
b. “Stand Alone” Operation Upon Sequence Master
Failure: If the Sequence Master Control is powered
down or disabled or if communication is lost
between boilers, individual boilers may be setup
to automatically resume control as a “stand alone”
boiler.
c. Slave Boiler Rate Adjustment: Each slave boiler
continues to monitor supply, return and ue gas
temperatures and modies the Sequence Master’s
ring rate demand to help avoid individual boiler
faults, minimize boiler cycling and provide heat to
the building efciently.
d. Slave Boiler Status Monitoring: The Sequence Master
monitors slave boiler lockout status and automatically
skip over disabled boilers when starting a new slave
boiler.
5. Customized Sequences
Normally, boilers are started and stopped in numerical
order. However, custom sequences may be established
to optimize the heat delivery. For example, in order to
minimize boiler cycling, a large boiler may be selected
to run rst during winter months and then selected to
run last for the remainder of the year.
6. Multiple Demands
The Sequence Master responds to Central Heat, Auxiliary
Heat DHW and frost protection demands similar to the
stand alone boiler. For example, when selected and DHW
priority is active, the sequence master uses DHW setpoint,
“Diff Above”, “Diff Below” and pump settings.
7. Shared or Isolated DHW Demand
When the Indirect Water Heater (IWH) parameter is set
to “Primary Piped” the Sequence Master sequences all
required boilers to satisfy the DHW setpoint (default
180°F (82.2°C). When “Boiler Piped” is selected only
the individual slave boiler, with the wired DHW demand
and pump, res to satisfy the DHW setpoint.
8. DHW Two boiler Start
When the Indirect Water Heater (IWH) parameter is set to
“Primary Piped” and the DHW Two Boiler Start parameter
is set to “Enabled” two boilers are started without delay
in response to a DHW call for heat. This feature allows
rapid recovery of large IWH’s and multiple IWH’s.
9. Optimized Boiler Modulation
Boiler ring rate is managed to increase smoothly as
boilers are started. For example, when a second boiler is
started the initial ring rate is 100%/2 or 50%, when the
third boiler is started the ring rate starts at 200%/3 or
66%. After the initial start, the Sequence Master develops
a unison ring rate demand based on it’s setpoint and
sensed header temperature.
10. Modulating Condensing Boiler Control
During low loads, the Sequence Master limits ring rates
to a ‘Base Load Common Rate” to ensure peak modulating
condensing boiler operating efciency. Lower ring rates
boost efciency by helping increase the amount of ue
gas water vapor condensation. The Control maintains a
“Base Load Common Rate” until the last lag boiler is
started. At this point, the “Base Load Common Rate”
is released to allow boilers to modulated as required to
meet heat load.
11. Advanced Boiler Sequencing
After there is a Call For Heat input, both header water
temperature and boiler ring rate percent are used to start
and stop the networked boilers. The control starts and stops
boilers when the water temperature is outside the user
selected “Diff Above” and “Diff Below” settings. Also,
in order to minimize temperature deviations, the control
adjusts the number of boilers running based on the ring
rate. This combination allows the boilers to anticipate
slow load changes before they disrupt water temperature
yet still respond quickly to sudden load changes. These
special sequencer features help reduce energy wasting
system temperature swings and the resulting unnecessary
boiler cycling.
12. Stop All Boilers
All boilers are stopped without delay if the Call for Heat
input is removed, or, if the header temperature is higher
than 195°F (90.6°C) (eld adjustable).
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Page 74
X. Operation
Boiler 1
i
E. Boiler Sequence of Operation
1. Normal Operation
Table 28: Boiler Sequence of Operation
Status Screen DisplayDescription
<
Priority:
Standby
Status:
Standby
Priority:
Central Heat
Status:
(burner Off, circulator(s) Off)
Boiler is not ring and there is no call for heat, priority equals standby. The boiler
is ready to respond to a call for heat.
(burner Off, circulator(s) On)
Boiler is not ring. There is a Central Heat call for heat and the Supply temperature
is greater than setpoint minus the “Diff Below”.
Standby
When supply temperature drops burner demand continues with following Status
Priority:
Central Heat
Status:
Prepurge
shown:
Safe Startup: Flame circuit is tested.
Drive purge: The blower is driven to the fan purge speed.
Prepurge: After the blower reaches the fan purge speed setting the 10
second combustion chamber purge is conducted.
Priority:
Central Heat
Status:
Direct
ignition
i
Boiler 1
Supply
Setpoint
Rate
Priority:
Status:
132 F
140 F
100%
Central Heat
Running
Central Heat
>
Priority:
Status:
Running
After purge time is complete the following Status is shown:
Drive light-off: The blower is driven to light-off rate.
Pre-Ignition Test: After the blower reaches light-off rate a safety relay test is
conducted.
Pre-ignition: Spark is energized and it is conrmed that no ame is present
Direct Ignition: Spark and Main fuel valve are energized.
(burner On, circulator(s) On)
After ame is proven the sequence continues with run stabilization and low
re hold time. Once the eld adjustable low re hold time is completed normal
boiler operation begins, modulation rate depending on temperature and setpoint
selections.
>
Priority:
Domestic
Hot Water
Status:
Running
Priority:
Standby
Status:
Post-purge
Priority:
Standby
Status:
Standby
Delay
Priority:
Standby
Status:
Lockout
If the Central Heat call for heat is active and a Domestic Hot Water (DHW) call for
heat received the DHW demand becomes the “priority” and the modulation rate,
setpoint, “Diff Above” and “Diff Below” are based on DHW settings.
(burner Off, circulator(s) Off)
If there is no call for heat, the main fuel valve is closed and, the blower is driven
to the fan post-purge speed. After the blower reaches the fan post-purge speed
setting, the 30-second combustion chamber purge is conducted.
Standby delay status is entered when a delay is needed, before allowing the
burner control to be available. For example, when Anti-Short Cycle time is
selected Standby delay is entered after the Central Heat call for heat ends. Select
“Help” button from the “Home Screen” to determine the cause of the Standby
Delay.
A lockout Status is entered to prevent the boiler from running due to a detected
problem. Select “Help” button from the “Home Screen” to determine the cause of
the Lockout. The last 10 Lockouts are recorded in the Lockout History.
74
Supply
132 F
Setpoint
<
Rate
Priority:
Status:
180 F
100%
Domestic Hot Water
Running
Page 75
X. Operation E. Boiler Sequence Of Operation (continued)
2. Using The Display
The Control includes a touch screen LCD display. The user monitors and adjusts boiler operation by selecting screen
navigation “buttons” and symbols. The “Home Screen” and menu selections are shown below. When no selection is
made, while viewing any screen, the display reverts to the “Home Screen” after 4 minutes. The “Home Screen” provides
boiler temperature, ring rate in BTU/hr, boiler status, efciency information and page links.
Menu Buttons
The Home Screen Menu Buttons
connect the displays four main dis-
play groups:
Information Symbol
“Information” symbol links most
screens to screen content explana-
tions. New terminology used in
status and adjustment screens are
explained in plain words.
Fault Indication
In the event of a boiler fault the
screen color turns red and the user is
guided by “blinking” touch buttons to
Help screens that explain the prob-
lem cause and corrective action.
Rate
Firing rate is displayed as kbtu/hr input.
Demand Status
The reason or cause of the boiler demand is
displayed; Central Heat, Auxiliary Heat, Domestic Hot Water, Sequencer Control (peer-to-peer
Demand) or Frost Protection. Warm Weather
Shutdown status is shown. “Standby’ is shown
when no demand is present.
Energy Save On Indication
Outdoor Air Reset, DHW or setback have lowered
boiler water setpoint.
High Efciency On Indication
Return temperature is low enough to allow energy
saving ue gas condensation.
(see Figure 41)
Status Screen
(see bottom of page 91)
Figure 38: Home Screen Details
Close Symbol
The “Close” symbol returns to the display to previous menu or screen.
Repeatedly pressing the “Close” symbol will always return the display
to the “Home” screen.
Arrow Symbol
The “Arrow” symbol links together all screens in the selected group.
For example, repeated pressing the right “Arrow” symbol will rotate
the display around all the screens in the Status group. Using this
feature the user can review all the boiler status and adjustment mode
screens.
Fault Symbols
“Active Fault” and “Rate Limit”
of a boiler fault or ring rate limit. The rst boiler status screen
provides an overview of boiler operation including fault status.
Figure 39: Screen Navigation
75
(see Figure 48)
symbols provide a link to the cause
(see Figure 43)
Page 76
X. Operation E. Boiler Sequence Of Operation (continued)
3. Status Screens
Boiler Status screens are the primary boiler monitoring screens. The user may simply “walk” though boiler
operation by repeatedly selecting the right or left “arrow” symbol. These screens are accessed by selected the
“Status” button from the “Home” screen.
NOTE
Only visible if Zone Panel is connected. Zone Panel 1 and 2 shown
typical for 1 through 4.
Figure 40: Status Screen Overview
Supply:
Measured supply water temperature. This is the
temperature being used to start/stop and re boiler
when there is a call-for- heat. Header temperature is
shown when selected.
Setpoint:
This is the active setpoint. This temperature setpoint determined based on active priority; Central
Heat, Auxiliary Heat or Domestic Hot Water. The
setpoint may be the result of Outdoor Air Reset
and Setback selections.
Rate:
The rate % value is equal to the actual kbtu/hr input
divided by the boiler rated input.
Priority:
The selected Priority is shown. Available Priorities
are: Standby (no call for heat is present), Sequencer
Control, Central Heat, Auxiliary Heat, Domestic Hot
Water, Frost Protection or Warm Weather Shutdown.
Status:
Information found at the bottom of the Status screen and
on the Home screen. Table
28 shows each status and the
action the control takes during
the condition.
Active fault:
A hard lockout will cause the active
fault indication to appear. When visible the text becomes a screen link to
the “Help” Menu.
Rate Limit:
The “6” symbol appears to the right
of the Rate % when ring rate is lim-
ited or overridden in any way. During
the start-up and shutdown sequence
it is normal for the rate to be overridden by the purge, light-off and low
re hold requirements. When a rate
limit is the result of boiler protection logic the “6” symbol blinks and
becomes a screen link.
Figure 41: Boiler Status Screen Denitions
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Page 77
X. Operation E. Boiler Sequence Of Operation (continued)
3. Status Screens (continued)
Bargraph Screen
Bargraph Screen
The bargraph screen presents measured values for easy comparison.
Included on this screen is ring rate and when the Zone Panel is connected
the measure Heat Loss. Measured heat loss is the heat rate kbtu/hr sum of
all active (call for heat) zones. This value represents the maximum required
ring rate.
Trend Screens
Data Logging
Real time graphic trends allow users to observe process changes over
time providing valuable diagnostic information. For example, ame
current performance over start up periods and varying loads can be an
indication of gas supply issues. Additionally, supply and return tempera-
ture dual pen trends brings a focused look at heat exchanger and pump
performance. For example, studying a differential temperature trend may
indicate pump speed settings need to be changed.
Burner Status Screen
NOTE
“Boiler Cycle” and “Run Time Hours” are
resettable by selecting the “Reset Counts”
button located on the information screen.
The “Controller Cycles” and “Controller Run Time” data is not resettable and
remains for the life of the control.
NOTE
Firing Rate Trend shows fan demand and
feedback.
Cycles and Hours
Boiler cycles and hours are used to monitor the boilers overall compatibility to the
heating load. Excessive cycling compared
to run time house may be an indication of
pumping, boiler sizing or adjustment issues.
77
Page 78
X. Operation E. Boiler Sequence Of Operation (continued)
Circulator Status Screen
Pumping is a major part of any hydronic system. This screen provides the
status of the boiler’s demand to connected pumps as well as the status of Frost
Protection and pump Exercise functions.
Head Demand Screen
This screen provides the status of the boilers ve (5) possible heat demands.
When demand is off the Control has not detected the call-for-heat. This screen
allows the user to determine which demands are present when more than one
demand is present.
Zone Control Status Screens
NOTE
Only visible if Zone Panel is connected. Zone Panel 1 and 2 shown
typical for 1 through 4.
Zone Control Status
Screen provides status and a page links
for up to four zone panels. Individual
zone “on” status is shown by a bold zone
number with a solid underscore. “Press”
the zone control “button” to view individual
zone .
Zone Panel 1 (typical for 2 through 4)
Zone panel screens show individual zone
status, cycle counts and individual zone
heat loss size in kbtu/hr. Individual zone
heat loss may be adjusted under the Adjust
NOTE
Zone cycles are resettable by selecting the “Reset Cycle Counts” button
located on the information screen.
“Modulation” menu. Also zone descriptions
may be modied using the “Zone Control
Description Setup” menu.
4. Detail Screens
Detail screens are accessed by selecting the “Detail” button from the “Home” screen. These screens provide in depth operating
parameter status such as “On Point”, “Off Point” and “Setpoint Source” information. Demand-specic details are provided for Central Heat, Auxiliary Heat, Domestic Hot Water and the Sequence Master demands. Detail screens also provide details on outdoor
air reset and Sequencer network status. Sequencer screens are only shown when the Sequence Master is enabled and, Auxiliary
Heat screen is only shown when a Zone Panel is connected.
Demand Detail Display
(Central Heat shown, Typical for
Auxiliary Heat, Domestic Hot Water
and Sequencer Master)
Outdoor Reset Display
(Central Heat shown,
Typical for Auxiliary Heat)
78
Page 79
X. Operation E. Boiler Sequence Of Operation (continued)
5. Multiple Boiler Sequencer Screens
When the Sequence Master is enabled the following screens are available:
The Sequencer Status screen is selected by “pressing” “Status” button from the “Home” screen when Sequence Master is
enabled.
Header:
measured header water temperature. This is the temperature being
used to start, stop and re boiler
when there is a call-for-heat.
Setpoint:
this is the active setpoint. This
temperature is the result of Outdoor
Air Reset, Setback and Domestic Hot
Water (DHW) selections.
Networked Boiler Status:
Provides connected, start sequence and ring rate status information for all connected boiler addresses. The boiler number is underlined if the boiler is running and blinks if the boiler has the start sequence in progress. For example the status for boiler address
1 is provided as follows:
1 - Boiler 1 is connected to the network
1 - “Blinking underline” - boiler 1 is starting
1 - “Solid underline” - boiler 1 is running
The “Networked Boilers” screen is selected by “pressing” the “Detail” button from the “Home” screens and “pressing” Networked
Boilers” from the “Detail” screen.
Rate:
The rate % value is equal to the
Sequence Master demand to the
individual boiler. Actual boiler ring
rate is found on the individual boiler
status pages.
Priority:
The selected Sequencer Priority
is shown. Available Priorities are:
Standby (no call for heat is present),
Central Heat, Auxiliary Heat, Domes-
tic Hot Water, Frost Protection or
Warm Weather Shutdown.
Boiler Number:
Up to eight (8) boiler’s status is
shown
Lead Boiler:
Upon power up the lowest numbered boiler becomes the lead
boiler. The lead boiler is the rst
to start and last to stop. The lead
boiler is automatically rotated after
24 hours of run time.
Additionally, the lead is rotated if
there is a lead boiler fault.
Sequence Status:
Slave boiler status is provide as follows:
Available:
Add Stage:
Running:
On Leave:
Recovering:
Disabled:
Boiler is ready and waiting to be started by the Sequencer
Master.
Boiler has begun the start sequence but has not yet reached
the boiler running status.
Boiler is running.
Boiler has left the network to service a DHW demand.
Boiler is in the process of returning to the network. For example, the slave boiler is in the Postpurge state.
Note: The recovery time is normally 30 seconds. However,
if the slave boiler fails to start the recovery time increases
from 30 seconds to 5, 10 and 15 minutes.
Boiler has a lockout condition and is unable to become available to the Sequencer Master.
79
Firing Rate:
Demanded ring rate is
provided.
Page 80
X. Operation
F. Changing Adjustable Parameters
1. Entering Adjust Mode
The Control is factory programmed
to include basic modulating boiler
functionality. These settings are password
protected to discourage unauthorized or
accidental changes to settings. User login is
required to view or adjust these settings:
- Press the “Adjust” button on the “Home”
screen.
- Press the “Adjust” button on the Adjust
Mode screen or Press “Service Contact”
for service provider contact information.
- Press “Login” button to access password
screen.
- Press 5-digit display to open a keypad.
Enter the password (Installer Password
is 86) and press the return arrow to close
the keypad. Press the “Save” button.
- Press the “Adjust” button to enter
Adjustment mode.
Figure 42: Adjust Mode Screens
2. Adjusting Parameters
Editing parameters is accomplished as follows:
80
Page 81
X. Operation F. Changing Adjustable Parameters (continued)
System
Setup
2. Adjusting Parameters (continued)
The following pages describe the Control’s adjustable parameters. Parameters are presented in the order they appear on
the Control’s Display, from top to bottom and, left to right. From the “Home” screen select the Adjust button to access the
adjustment mode screens show below (if required, refer to the previous page to review how to enter Adjustment mode):
“Press”
Factory
Setting
Fahrenheit
40-14
80-14
Wired
0
Not
Connected
EnabledEnable/Disable
0 Secs0-900 Secs
DisabledEnable/Disable
70°F0-100°F
tenths of degree
Not Connected
button to access the following parameters:
Range /
Choices
Fahrenheit,
Celsius
Not Installed,
Wired
Wireless
-100 to 100
Connected,
Parameter and Description
Temperature Units
The Temperature Units parameter determines whether temperature is represented in units of Fahrenheit
or Celsius degrees.
Display Brightness
Display brightness is adjustable from 0 to 14.
Display Contrast
Display contrast is adjustable from 0 to 14.
Outdoor Sensor Source
Not Installed Outdoor Sensor is not connected to the boiler, the sensor is not monitored for faults.
Wired Outdoor Sensor is installed directly on the boiler terminal Strip-TB2.
Wireless Outdoor sensor is installed and wireless.
Outdoor Air Sensor Calibration
Outdoor Air Sensor Calibration offset allows a single point calibration. Using a reliable source (reference)
for outdoor temperature measure outdoor air temperature. Set the offset equal to the difference between
the controller reading and the reference. The result will be the Control’s measurement matching the refer-
ence reading.
Zone Control Status Connected
When the Zone Control is connected adjustable settings are automatically shown under the Adjust “Modulation”, “Auxiliary Heat” and “Zone Control Description Setup” menus. This feature allows these adjustments to be made before the zone panel is connected. When the user selects “Show As If Connected”
Zone Control related parameters are made visible and may be adjusted.
Frost Protection
Disable Frost Protection is not used.
Enable Boiler and system circulators start and boiler res when low outside air, supply and return
temperatures are sensed as follows:
Device Started Start Temperatures Stop Temperatures
Boiler & System Outside Air < -22°F (-30°C) Outside Air > -18°F (-28°C)
Anti-Short Cycle Time
Anti-short cycle is a tool that helps prevent excessive cy-cling resulting from a fast cycling Thermostat or
Zone valves. It provides a minimum delay time before the next burner cycle. DHW demand is serviced
immediately, without any delay.
Warm Weather Shutdown Enable
Disable Warm Weather Shutdown (WWSD) is not used.
Enable The boiler and pumps will not be allowed to start in response to a central heat call for heat if
the outside temperature is greater than the WWSD setpoint. WWSD is initiated as soon as
outside air temperature is above WWSD Setpoint. The control does not require call for heat to
be satised.
The boiler will still start in response to a Domestic Hot Water call for heat.
Warm Weather Shutdown Setpoint
The Warm Weather Shutdown (WWSD) Setpoint used to shutdown the boiler when enabled by the
“WWSD Enable” parameter.
81
Page 82
X. Operation F. Changing Adjustable Parameters (continued)
Modulation
Setup
WARNING
Asphyxiation Hazard. Boiler type is factory set and must match the boiler model. Only change the boiler
type setting if you are installing a new or replacement Control. The boiler type setting determines minimum
and maximum blower speeds. Incorrect boiler type can cause hazardous burner conditions and improper
operation that may result in PROPERTY LOSS, PHYSICAL INJURY OR DEATH.
“Press”
Factory
Setting
See Table
29
Range / ChoicesParameter and Description
button to access the following parameters:
Boiler Type
Boiler Size Setup
To verify the boiler size selection, a qualied technician should do the following:
1. Check boiler’s label for actual boiler size.
See Table 29
2. Set “Boiler Type” to match actual boiler size.
3. Select “Conrm”.
The Boiler Type parameter changes the minimum and maximum modulation settings. This parameter is intended to allow a user to set the parameters in a spare part Control to a particular boiler
type.
Table 29: Parameters Changed Using the Boiler Type Parameter Selections:
R7910
Repair Control Kit
Spare Part:
Altitude0 - 7000 Ft.7001 - 10,000 Ft.
Boiler Type
Minimum Heat Rate13702400145018002400
Maximum Heat Rate59505950556070007000
Absolute
Maximum Heat Rate
Light-off Heat Rate400030002500
NOTE: Maximum Modulation Rates are designed for 100% nameplate rate at 0°F (-18°C) combustion air.
Contact factory before attempting to increase the Maximum Modulation Rate.
P/N 106177-01
Maximum
Light-off Heat Rate
= 4000
210
-02
63506350620070007000
210
-27
285
-07
R7910
Repair Control Kit
P/N 106177-02
Maximum
Light-off Heat Rate
= 3000
210
-70
R7910
Repair Control Kit
P/N 106177-03
Maximum
Light-off Heat Rate
= 2500 rpm
285
-70
82
Page 83
X. Operation F. Changing Adjustable Parameters (continued)
The Control is shipped with defaults that will provide improved operation. Adjustment is only required to optimize
setup.
The expected heat rate adjustment is used to better match boiler output to the home heating needs. After receiving
a "call for heat" the Control rst uses the expected heat rate value to set a maximum heat rate. The maximum heat
rate is the highest heat rate that the boiler can re to at that moment. The maximum heat rate is the summation of
the expected heat rates for the active (turned on) zones. After establishing the maximum heat rate the Control then
measures water temperature and res the boiler only as hard as required for the heat demand.
Example “call for heat”
durations for a four zone
house.
Maximum heat rate limits
ring rate and prevents
the Control from ring to
100% in response to a
smaller zone demands.
Maximum Heat Rate:
Automatically adjusted
by the Control based on
the size and number of
zones calling for heat.
Actual Heat Rate:
Boiler is free to modulate based on temperature from minimum to
maximum heat rate.
Maximum modulation numbers are shown in both RPM
and kbtu/hr to allow for easier
understanding of boiler heat
rate.
Figure 43: Four Zone House (with Zone Control Connected)
NOTE
This feature requires Zone
Control to be connected.
Refer to Electrical section for
Zone Control connection information.
The sum of Zone Expected
Heat Rates plus DHW Maximum Expected Heat Rate
(if DHW is active) is used to
calculate the active maximum
modulation rate.
Figure 44: Expected Heat Rate Adjustment (with Zone Control Connected)
83
Page 84
X. Operation F. Changing Adjustable Parameters (continued)
Modulation
Setup
“Press”
Factory
Setting
100%
80%
100%
40%
30
Minutes
See Table
29
See Table
29
button to access the following parameters:
Range / ChoicesParameter and Description
Central Heat Maximum Expected Heat Rate
Minimum to
Maximum
Heat Rate
Minimum to
Maximum
Heat Rate
Minimum to
Maximum
Heat Rate
Minimum to
Maximum
Heat Rate
0 to 60 Minutes
Minimum
- 100 to Maximum
See Table 29
This parameter denes the highest modulation rate the Control will go to during a central heat
call for heat. If the rated input of the installed home radiation is less than the maximum output of
the boiler, change the Central Heat Maximum Expected Heat Rate (fan speed) setting to limit the
boiler output accordingly.
Domestic Hot Water (DHW) Maximum Expected Heat Rate
This parameter denes the highest modulation rate the Control will go to during a Domestic Hot
Water call for heat. If the rated input of the indirect water heater is less than the maximum output
of the boiler, change the DHW Maximum Expected Heat Rate (fan speed) setting to limit the boiler
output accordingly.
Auxiliary Maximum Expected Heat Rate
This parameter denes the highest modulation rate the Control will go to during the auxiliary heat
call for heat. If the rated input of the Auxiliary Heat Zones is less than the maximum output of the
boiler, change the Auxiliary Heat Maximum Expected Heat Rate (fan speed) setting to limit the
boiler output accordingly.
Zone 1 Expected Heat Rate (typical for zone 1 through 16)
This parameter denes the highest modulation rate the Control will go to during the Zone 1 call for
heat. If the rated input of the installed home radiation in zone 1 is less than the maximum output
of the boiler, change the Zone 1 Expected Heat Rate (fan speed) setting to limit the boiler output
accordingly.
Zone Release Time
After the Zone Release Time minutes and a zone has not been satised (thermostat opens) the
measured heat loss will be released to increase to the Central Heat Maximum Heat Rate.
Minimum Heat Rate
This parameter is the lowest modulation rate the Control will go to during any call for heat.
Lightoff Heat Rate
This is the blower speed during ignition and ame stabilization periods.
84
Page 85
Pump Setup
X. Operation F. Changing Adjustable Parameters (continued)
“Press”
Factory Setting Range / ChoicesParameter and Description
Any Demand
Any Demand
Primary
Loop Pipe
IWH
button to access the following parameters:
System Pump run pump for:
Activates the system pump output according to selected function.
Never,
Any Demand,
Central Heat,
No Priority,
Central Heat,
Optional Priority
Any Demand,
Central Heat, off
DHW demand
Never,
Primary Loop
Piped IWH,
Boiler Piped IWH
Never: Pump is disabled and not shown on status screen.
Any Demand: Pump Runs during any call for heat.
Central Heat, No Priority: Pump Runs during central heat and frost protection call for
heat. Pump does not start for a DHW call for heat and
continues to run during Domestic Hot Water Priority.
Central heat, Optional
Priority: Pump Runs during central heat and frost protection call for
heat. Pump does not start for a DHW call for heat and will be
forced off if there is a DHW call for heat and Domestic Hot
Water Priority is active.
Boiler Pump run pump for:
Activates the boiler pump output according to selected function.
Any Demand: Pump Runs during any call for heat.
Central Heat, off DHW
demand: Make sure indirect water heater and DHW circulator are sized to maintain ow through boiler within limits shown in Table 12.
Domestic Pump run pump for:
Activates the Domestic pump output according to selected function.
Never: Pump is disabled and not shown on status screen.
Primary Loop Piped IWH: Pump Runs during domestic hot water call for
heat. Domestic Hot Water Priority enable/disable
does not affect pump operation.
Boiler Piped IWH: Make sure indirect water heater and DHW
circulator are sized to maintain ow through boiler within limits shown in Table 12.
Pump Runs during domestic hot water call for heat. Pump is
forced off during a central heat call for heat when Domestic
Hot Water Priority “disabled” is selected and when Domestic
Hot Water Priority “enable” has been selected and the DHW
call for heat has remained on for longer than 1 hour (priority
protection time).
Pump Runs during central heat and frost protection call for
heat. Pump does not start for a DHW call for heat and will
be forced off if there is a DHW call for heat and Domestic Hot
Water Priority is active.
Example Pump Parameter selections:
Single boiler with no Indirect Water Heater
Explanation:
This piping arrangement only
services central heat. When
there is any demand both
boiler and system pumps turn
on.
85
Page 86
X. Operation F. Changing Adjustable Parameters (continued)
Example Pump Parameter selections (continued):
Single boiler Indirect Water Heater (IWH)Piped to Primary, Optional Domestic Hot Water Priority.
This piping arrangement permits the
system pump to run or not run when
there is a domestic hot water call for heat.
Domestic hot water priority is optional.
It is permissible for the domestic and
system pumps to run at the same time.
The boiler pump must run for every call
for heat.
Multiple Boilers with Boiler Piped IWH, System and DHW Wired to Master
Sequencer Master
(Boiler 1)
Wiring locations:
ThermostatX
DHW call for heatX
System pumpX
DHW pumpX
Boiler PumpXX
Sequencer Master Parameter Selections:
Sequencer MasterEnabled
Indirect Water
Heater
Pump Parameter Selections:
System Pump =
Boiler Pump =
DHW Pump =Boiler Piped IWHNever
Explanation:
Make sure indirect water heater and DHW pump are sized to maintain ow though boiler within limits shown in Table 12.
This piping arrangement does not allow both the Slave 1’s boiler and domestic hot water pump to run at the same time.
When call for Domestic Hot Water is received the DHW pump is turned on and the boiler pump is turned off. However, the
system pumps may run to satisfy a central heat demand that is being satised by a different slave. The central heat demand
is ignored by Slave 1 until the domestic hot water demand is ended. If domestic hot water priority is enabled and priority
protection time is exceeded the domestic hot water pump turns off to allow the boiler pump to run.
“Boiler Piped”
Central Heat,
No Priority
Central Heat,
Off DHW Priority
Boiler 2
Never
Any
demand
86
Page 87
X. Operation F. Changing Adjustable Parameters (continued)
Example Pump Parameter selections (continued):
Multiple boilers IWH Piped to Primary, Optional Domestic Hot Water Priority
Sequencer Master
(Boiler 1)
Wiring locations:
ThermostatX
DHW call for heatX
System pumpX
DHW pumpX
Boiler PumpXX
Sequencer Master Parameter Selections:
Sequencer MasterEnabled
Indirect Water
Heater
Pump Parameter Selections:
System Pump =
Boiler Pump =Any demand
DHW Pump =
Explanation:
This piping arrangement permits the system pump to run or not run when there is a domestic hot water call for heat. Domestic hot water
priority is optional. It is permissible for the domestic and system pumps to run at the same time. The boiler pump must run for every call for
heat.
“Primary Piped”
Central Heat,
Optional Priority
Primary Loop
Piped IWH
Boiler 2
Never
Any
demand
Never
Multiple Boilers, IWH piped to primary, system pump required to run for any call for heat
Sequencer Master
(Boiler 1)
Wiring locations:
ThermostatX
DHW call for heatX
System pumpX
DHW pumpX
Boiler PumpXX
Sequencer Master Parameter Selections:
Sequencer MasterEnabled
Indirect Water
Heater
Pump Parameter Selections:
System Pump =Any demandNever
Boiler Pump =Any demandAny demand
DHW Pump =
Explanation:
This piping arrangement requires the system pump to be running for any calls for heat. Also the boiler pump must run for any call for heat.
“Primary Piped”
Primary Loop
Piped IWH
Boiler 2
Never
87
Page 88
Contractor
Setup
X. Operation F. Changing Adjustable Parameters (continued)
Manual
Control
“Press”
button to access the following parameters:
i
<
Use Up and DOWN Arrows for More
Exit Screen without Saving
Save Field and Exit
Contractor Name
Press box to input contractor information.
Bill Smith
Save
Press SAVE button to store revisions.
Enter Contractor Information
Bill Smith
2
3
4
1
B
A
5
C
D
Clear Entire Field
Backspace
For Service Contact:
Bill Smith
>
12 Victory Lane
Plainview, New York
516 123-4567
Example Screen
8
7
8
6
7
CL
ES
BS
R
C
Factory SettingRange / ChoicesParameter and Description
Contractor NameUser denedContractor Name
Address Line 1User denedContractor Address Line 1
Address Line 2User denedContractor Address Line 2
PhoneUser denedContractor Phone
“Press”
button to access the following screen:
The Manual Speed Control speed screen allows the technician to set ring rate at low or high speed for combustion testing.
NOTE
Rate % can only be set
when the boiler has heat
demand and is released to
modulate.
Selecting “Low” or “High”
locks (manual mode) ring
rate at min or max Rate %.
After combustion testing select
“Auto” to return the boiler to
NOTE
normal operation.
“Press” “Low” to select
manual ring rate control
and Minimum ring rate %
“Press” “High” to select
manual ring rate control
and Central Heat Maximum
ring rate %
88
Press “Auto” to
return ring rate
to Automatic
Mode
Page 89
Central
Heat
X. Operation F. Changing Adjustable Parameters (continued)
“Press”
Factory
Setting
180°F
(82.2°C)
170°F
(76.7°C)
7°F
(3.9°C)
5°F
(2.8°C)
31 to 5
120
seconds
Supply
Sensor
Range / ChoicesParameter and Description
60°F to 190°F
(16°C to 87.8°C)
80°F to 190°F
(26.7°C to 87.8°C)
(1.1°C to 5.6°C)
(1.1°C to 14°C)
0 to 300 seconds
Supply Sensor,
Header Sensor
button to access the following parameters:
2°F to 10°F
2°F to 25°F
Central Heat Setpoint
Target temperature for the central heat priority. Value also used by the outdoor air reset function.
Central Heat Thermostat “Sleep” or “Away” Setback Setpoint
Thermostat setback setpoint is used when the EnviraCOM thermostat is in “leave” or “sleep”
modes and sensed at E-COM terminals D, R, and C. When setback is “on” the thermostat setback setpoint shifts the reset curve to save energy while home is in a reduced room temperature
mode. The reset curve is shifted by the difference between the High Boiler Water Temperature
and the Thermostat Setback Setpoint. Honeywell VisionPro IAQ part number TH9421C1004 is a
“setback” EnviraCOM enabled thermostat. When connected, it allows boiler water setback cost
savings.
Central Heat Diff Above
The boiler stops when the water temperature rises ‘Diff Above’ degrees above the setpoint.
Central Heat Diff Below
The boiler starts when the water temperature drops ‘Diff Below’ degrees below the setpoint.
Response Speed
This parameter adjusts the Central Heat temperature controller Proportion Integral Derivative
(PID) values. Higher values cause a larger ring rate change for each degree of temperature
change. If set too high ring rate “overshoots” required value, increases to high re causing the
temperature to exceed the “Diff Above” setpoint and cycle the boiler unnecessarily. Lower values
cause a smaller ring rate change for each degree of temperature change. If set too low, the
ring rate response will be sluggish and temperature will wander away from setpoint.
Low Fire Hold Time
“Low Fire Hold Time” is the number of seconds the control will wait at low re modulation rate
before being released to modulate. After ignition and ame stabilization periods the ring rate is
held at low re for “Low Fire Hold Time”. This delay allows heat to travel out to the system and
provide system feedback prior to the control modulating ring rate.
Modulation Sensor
Heat Demand may respond to the boiler’s Supply Temperature or Header Temperature sensors.
When Header Sensor is selected the boiler is red in response to the sensor wired to Header
Sensor Low Voltage Terminal Block Terminals.
89
Page 90
X. Operation F. Changing Adjustable Parameters (continued)
“Press” button to access the following parameters:
Factory
Setting
180°F
(82.2°C)
170°F
(76.7°C)
7°F
(3.9°C)
5°F
(2.8°C)
31 to 5
DisableDisable, Enable
Zone
Control
Supply
Sensor
Range / ChoicesParameter and Description
60°F to 190°F
(16°C to 87.8°C)
80°F to 190°F
(26.7°C to 87.8°C)
2°F to 10°F
(1.1°C to 5.6°C)
2°F to 25°F
(1.1°C to 14°C)
Zone Control,
DHW Terminal
Supply Sensor,
Header Sensor
Auxiliary Heat Setpoint
Target temperature for the Auxiliary Heat priority. Value also used by the outdoor air reset
function.
Auxiliary Heat Thermostat “Sleep” or “Away” Setback Setpoint
Thermostat setback setpoint is used when the EnviraCOM thermostat is in “leave” or “sleep”
modes and sensed at E-COM terminals D, R, and C. When setback is “on” the thermostat setback setpoint shifts the reset curve to save energy while home is in a reduced room temperature
mode. The reset curve is shifted by the difference between the High Boiler Water Temperature
and the Thermostat Setback Setpoint. Honeywell VisionPro IAQ part number TH9421C1004 is a
“setback” EnviraCOM enabled thermostat. When connected, it allows boiler water setback cost
savings.
Auxiliary Heat Diff Above
The boiler stops when the water temperature rises ‘Diff Above’ degrees above the setpoint.
Auxiliary Heat Diff Below
The boiler starts when the water temperature drops ‘Diff Below’ degrees below the setpoint.
Response Speed
This parameter adjusts the Auxiliary Heat temperature controller Proportion Integral Derivative
(PID) values. Higher values cause a larger ring rate change for each degree of temperature
change. If set too high ring rate “overshoots” required value, increases to high re causing the
temperature to exceed the “Diff Above” setpoint and cycle the boiler unnecessarily. Lower values
cause a smaller ring rate change for each degree of temperature change. If set too low, the
ring rate response will be sluggish and temperature will wander away from setpoint.
Auxiliary Priority Over Central Heat
This parameter allows the Auxiliary Heat demand to be higher or lower priority than Central Heat
demand. When both demands are active at the same time the Control uses the Setpoint, Diff
Above and Diff Below for the demand that has priority.
Disabled Auxiliary Heat is lower priority than Central Heat demand.
Enable Auxiliary Heat is higher priority than Central Heat demand.
Auxiliary Heat Demand Source
The Control’s “DHW Temp Switch” input terminal may be used as a Domestic Hot Water (DHW)
demand or Auxiliary Heat demand. When the Domestic Hot Water Demand Source is set to
Zone Control and the Auxiliary Heat Demand Source is set to “DHW Terminal” an Auxiliary Heat
Demand may be wired to the DHW Temp Switch terminals. This feature may be used even if a
Zone Control is not installed.
Zone Control Auxiliary Heat demand may only be wired to the Zone Control
DHW Terminal Auxiliary Heat demand may be wired to the Zone Control or DHW Terminal.
Modulation Sensor
Heat Demand may respond to the boiler’s Supply Temperature or Header Temperature sensors.
When Header Sensor is selected the boiler is red in response to the sensor wired to Header
Sensor Low Voltage Terminal Block Terminals.
90
Page 91
X. Operation F. Changing Adjustable Parameters (continued)
Domestic
Hot Water
“Press”
Factory
Setting
170°F
(76.7°C)
160°F
(71.1°C)
7°F
(3.9°C)
5°F
(2.8°C)
31 to 5
10
seconds
EnabledEnable, Disable
6030 to 120 Minutes
DHW
Terminal
Range / ChoicesParameter and Description
(26.7°C to 87.8°C)
(26.7°C to 87.8°C)
(1.1°C to 5.6°C)
(1.1°C to 14°C)
0 to 300 seconds
DHW Terminal,
button to access the following parameters:
60°F (16°C) to
190°F
60°F (16°C) to
190°F
2°F to 10°F
2°F to 25°F
Zone Control
Domestic Hot Water Setpoint
The Domestic Hot Water (DHW) Setpoint parameter is used to create a minimum boiler water
temperature setpoint that is used when DHW heat demand is “on”.
When the DHW heat demand is not “on” (the contact is open or not wired) this setpoint is
ignored.
Domestic Hot Water Thermostat “Sleep” or “Away” Setback Setpoint
Thermostat setback setpoint is used when the EnviraCOM thermostat is in “leave” or “sleep”
modes and sensed at E-COM terminals D, R, and C. When setback is “on” the thermostat
setback setpoint shifts the DHW setpoint to lower the DHW temperature and to save energy
while home is in a reduced room temperature mode.
Domestic Hot Water Diff Above
The boiler stops when the water temperature rises ‘Diff Above’ degrees above the setpoint.
Domestic Hot Water Diff Below
The boiler starts when the water temperature drops ‘Diff Below’ degrees below the setpoint.
Response Speed
This parameter adjusts the Domestic Hot Water temperature controller Proportion Integral
Derivative (PID) values. Higher values cause a larger ring rate change for each degree of
temperature change. If set too high ring rate “overshoots” required value, increases to high re
causing the temperature to exceed the “Diff Above” setpoint and cycle the boiler unnecessarily.
Lower values cause a smaller ring rate change for each degree of temperature change. If set
too low, the ring rate response will be sluggish and temperature will wander away from setpoint.
Low Fire Hold Time
“Low Fire Hold Time” is the number of seconds the control will wait at low re modulation rate
before being released to modulate. After ignition and ame stabilization periods the ring rate is
held at low re for “Low Fire Hold Time”. This delay allows heat to travel out to the indirect water
heater and provide feedback prior to the control modulating ring rate.
Domestic Hot Water Priority (DHWP)
When Domestic Hot Water Priority is Enabled and Domestic Hot Water (DHW) heat demand is
“on” the DHW demand will take “Priority” over home heating demand. When the System and
Boiler pumps are congured as “Central Heat (off DHW priority)” or “Central Heat, Optional
Priority” then they will be forced “off” during DHW Priority. Priority protection time is provided to
end DHWP in the event of a failed or excessive long DHW demand.
Priority Time
When DHWP is Enabled the Priority Time Parameter appears and is adjustable.
Domestic Demand Source
The Control’s “DHW Temp Switch” input terminal may be used as a DHW demand or Auxiliary
Heat demand. When “DHW Terminal” is selected the Control will accept a DHW input from
either the “DHW Temp Switch” or the Zone Control (zone 4, set to priority). If “Zone Control”
is selected the Control can only accept the DHW input from the Zone Control. This allows
the Control to be set to accept an Auxiliary heat demand from the “DHW Temp Switch” input
terminal. Refer to the Auxiliary heat menu for required selection to use this input.
DHW Terminal DHW demand may be wired to the DHW Switch terminal or Zone Control.
Zone Control DHW demand may only be wired to the Zone Control.
91
Page 92
X. Operation F. Changing Adjustable Parameters (continued)
“Press” button to access the following parameters:
Factory
Setting
EnabledEnable Disable
0°F
(-18°C)
70°F
(21.1°C)
110°F
(43.3°C)
130°F
(54.4°C)
0 Minutes
Range / ChoicesParameter and Description
Central Heat Outdoor Reset Enable
If an outdoor sensor is installed and Outdoor Reset is Enabled, the boiler will automatically
adjust the heating zone set point temperature based on the outdoor reset curve in Figure
45. The maximum set point is dened by the Central Heat Setpoint [factory set to 180°F
(82.2°C)] when the outdoor temperature is 0°F (-18°C) or below. The minimum set point
temperature shown is 130°F (54.4°C) [adjustable as low as 80°F (26.7°C)] when the
outdoor temperature is 50°F (10°C) or above. As the outdoor temperature falls the supply
water target temperature increases. For example, if the outdoor air temperature is 30°F,
(-1.1°C) the set point temperature for the supply water is 150°F (65.6°C).
Disable Do Not Calculate setpoint based on outdoor temperature
Enable Calculate the temperature setpoint based on outdoor temperature using a reset
curve dened by Low Outdoor Temp, High Outdoor Temp, Low Boiler Water
Temp, Min Boiler Temp and Central Heat Setpoint and Boost Time parameters.
Central Heat Low Outdoor Temperature
-40°F to 100°F
(-40°C to 37.8°C)
32°F to 100°F
(0°C to 37.8°C)
70°F to 190°F
(21.1°C to 87.8°C)
80°F to 190°F
(26.7°C to 87.8°C)
0-1800 Seconds
(0-30 Minutes)
The Low Outdoor Temperature parameter is also called “Outdoor Design Temperature”.
This parameter is the outdoor temperature used in the heat loss calculation. It is typically
set to the coldest outdoor temperature.
Central Heat High Outdoor Temperature
The High Outdoor Temperature parameter is the outdoor temperature at which the Low
Boiler Water Temperature is supplied. This parameter is typically set to the desired building
temperature.
Central Heat Low Boiler Water Temperature
The Low Boiler Water Temperature parameter is the operating setpoint when the High
Outdoor Temperature is measured. If the home feels cool during warm outdoor conditions,
the Low Boiler Water Temperature parameter should be increased.
Minimum Boiler Temperature (Central Heat and Auxiliary Heat)
The Minimum Boiler Temperature parameter sets a low limit for the Reset setpoint. Set this
parameter to the lowest supply water temperature that will provide enough heat for the type
radiation used to function properly. Always consider the type of radiation when adjusting
this parameter.
Central Heat Boost Time
When the Central Heat Setpoint is decreased by Outdoor Reset settings, the Boost Time
parameter is used to increase the operating setpoint when the home heat demand is not
satised after the Boost Time setting is exceeded. When heat demand has been “on”
continuously for longer than the Boost Time parameter the operating setpoint is increased
by 10°F (5.6°C). The highest operating setpoint from Boost Time is current Central Heat
Setpoint minus the Central Heat “Diff Above” setting. A setting of 0 seconds disables this
feature.
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X. Operation F. Changing Adjustable Parameters (continued)
“Press” button to access the following parameters:
Factory
Setting
EnabledEnable Disable
0°F
(-18°C)
70°F
(21.1°C)
110°F
(43.3°C)
0 Minutes
Range / ChoicesParameter and Description
Auxiliary Heat Outdoor Reset Enable
If an outdoor sensor is installed and Outdoor Reset is Enabled, the boiler will automatically
adjust the heating zone set point temperature based on the outdoor reset curve in Figure
45. The maximum set point is dened by the Central Heat Setpoint [factory set to 180°F
(82.2°C)] when the outdoor temperature is 0°F (-18°C) or below. The minimum set point
temperature shown is 130°F (54.4°C) [adjustable as low as 80°F (26.7°C)] when the
outdoor temperature is 50°F (10°C) or above. As the outdoor temperature falls the supply
water target temperature increases. For example, if the outdoor air temperature is 30°F,
(-1.1°C) the set point temperature for the supply water is 150°F (65.6°C).
Disable Do Not Calculate setpoint based on outdoor temperature
Enable Calculate the temperature setpoint based on outdoor temperature using a reset
curve dened by Low Outdoor Temp, High Outdoor Temp, Low Boiler Water
Temp, Min Boiler Temp and Central Heat Setpoint and Boost Time parameters.
Auxiliary Heat Low Outdoor Temperature
-40°F to 100°F
(-40°C to 37.8°C)
32°F to 100°F
(0°C to 37.8°C)
70°F to 190°F
(21.1°C to 87.8°C)
0-1800 Seconds
(0-30 Minutes)
The Low Outdoor Temperature parameter is also called “Outdoor Design Temperature”.
This parameter is the outdoor temperature used in the heat loss calculation. It is typically
set to the coldest outdoor temperature.
Auxiliary Heat High Outdoor Temperature
The High Outdoor Temperature parameter is the outdoor temperature at which the Low
Boiler Water Temperature is supplied. This parameter is typically set to the desired building
temperature.
Auxiliary Heat Low Boiler Water Temperature
The Low Boiler Water Temperature parameter is the operating setpoint when the High
Outdoor Temperature is measured. If the home feels cool during warm outdoor conditions,
the Low Boiler Water Temperature parameter should be increased.
Auxiliary Heat Boost Time
When the Central Heat Setpoint is decreased by Outdoor Reset settings, the Boost Time
parameter is used to increase the operating setpoint when the home heat demand is not
satised after the Boost Time setting is exceeded. When heat demand has been “on”
continuously for longer than the Boost Time parameter the operating setpoint is increased
by 10°F (5.6°C). The highest operating setpoint from Boost Time is current Central Heat
Setpoint minus the Central Heat “Diff Above” setting. A setting of 0 seconds disables this
feature.
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X. Operation F. Changing Adjustable Parameters (continued)
Figure 45: Outdoor Reset Curve - Typical for Central Heat and Auxiliary Heat
Central Heat
Setpoint
180°F to 190°F
(82.2°C to 87.8°C)
160°F to 190°F
(71.1°C to 87.8°C)
130°F to 160°F
(54.4°C to 71.1°C)
Heating Element Type
Fan Coil
Convection
Baseboard
Fin Tube
Convective
Radiant
Baseboard
Central Heat
Setpoint
100°F to 140°F
(37.8°C to 60°C)
130°F to 160°F
(54.4°C to 71.1°C)
140°F to 160°F
(60°C to 71.1°C)
In Slab Radiant High
Staple-up Radiant
Low Mass Radiant
Heating Element Type
Mass Radiant
Radiators
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Page 95
X. Operation F. Changing Adjustable Parameters (continued)
“Press” button to access the following parameters:
Factory
Setting
Disable
Boiler
Piped
Disabled
180 Secs 120 - 1200 Secs
195°F
(90.6°C)
70%50% - 100%
Range / ChoicesParameter and Description
Enable,
Disable
Boiler Piped,
Primary Piped
Enable,
Disable
Central Heat
Setpoint,
195°F (90.6°C)
31-5
Master Enable/Disable
The Sequencer Master Enable/Disable is used to “turn on” the Multiple Boiler Controller. Warning!
enable ONLY one Sequence Master.
Indirect Water Heater (IWH)
Boiler Piped Sequencer to respond to an Isolated DHW demand that is piped to a single
boiler. The individual boiler goes on “Leave” from the Sequencer Master and
goes to DHW Service.
Primary Piped The Sequence Master responds to the DHW Call For Heat. This allows one or
more boilers to provide heat to the IWH.
DHW Two Boiler Start
The Sequencer to immediately start two boilers for a DHW call for heat. Used when DHW is the
largest demand. Only visible when primary piped IWH is selected.
Boiler Start Delay
Slave boiler time delay after header temperature has dropped below the setpoint minus “Diff below” setpoint. Longer time delay will prevent nuisance starts due to short temperature swings.
Stop All Boilers Setpoint
When this temperature is reached all boilers are stopped. This setpoint allows the Sequencer to
respond to rapid load increases.
Base Load Common Rate
To maximize condensing boiler efciency, the ring rate is limited to an adjustable value. Boilers
are kept at or below this ring rate as long as the boilers can handle the load. After last available
boiler has started, the modulation rate limit is released up to 100%.
Response Speed
This parameter adjusts the Sequence Master temperature controller Proportion Integral Derivative
(PID) values. Higher values cause a larger ring rate change for each degree of temperature
change. If set too high ring rate “overshoots” required value, increases to high re causing the
temperature to exceed the “Diff Above” setpoint and cycle the boiler unnecessarily. Lower values
cause a smaller ring rate change for each degree of temperature change. If set too low, the ring
rate response will be sluggish and temperature will wander away from setpoint.
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Sequence
Slave
X. Operation F. Changing Adjustable Parameters (continued)
“Press”
Factory
Setting
None1-8
Normal
Range / Choices Parameter and Description
Use Boiler First,
Use Boiler Last
“Press”
NOTE
Zone Control Description
Setup shown for 2 panels,
typical for up to 4.
button to access the following parameters:
Boiler Address
Each boiler must be given a unique address. When ”Normal” slave selection order is used, the
boiler address is used by the Master Sequencer as the boiler start order. The boiler address is
also the Modbus Address when a Energy Management System is connected.
Slave Selection Order
Normal,
“Use Boiler First”; places the Slave in the lead permanently.
”Normal”; ring order follows boiler number (1,2,3,..) order.
”Use Boiler Last”; places the slave last in the ring order.
button to access the following parameters:
Use Up and DOWN Arrows for More
Exit Screen without Saving
Clear Entire Field
Backspace
Save Field and Exit
Factory SettingRange / ChoicesParameter and Description
Central Heat 1User denedZone Control 1Zone 1
Central Heat 2User denedZone Control 1Zone 2
Central Heat 3User denedZone Control 1Zone 3
Central Heat 4User denedZone Control 1Zone 4
Central Heat 1User denedZone Control 2Zone 1
Central Heat 2User denedZone Control 2Zone 2
Central Heat 3User denedZone Control 2Zone 3
Central Heat 4User denedZone Control 2Zone 4
Central Heat 1User denedZone Control 3Zone 1
Central Heat 2User denedZone Control 3Zone 2
Central Heat 3User denedZone Control 3Zone 3
Central Heat 4User denedZone Control 3Zone 4
Central Heat 1User denedZone Control 4Zone 1
Central Heat 2User denedZone Control 4Zone 2
Central Heat 3User denedZone Control 4Zone 3
Central Heat 4User denedZone Control 4Zone 4
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X. Operation F. Changing Adjustable Parameters (continued)
“Press”
Factory
Setting
Local
Local
130°F
(54.4°C)
180°F
(82.2°C)
Local
* Only visible when Central Heat Setpoint Source is set to 4-20mA.
80°F (26.7°C) -
Central Heat
80°F (26.7°C) -
Central Heat
button to access the following parameters:
Range /
Choices
Central Heat Modulation Source
This parameter enables the 4-20mA input to control ring rate and the thermostat input to control
Local,
4-20mA
Local,
4-20mA
Setpoint
Setpoint
Local,
Modbus
boiler on/off demand directly without using the internal setpoint. The 4-20mA selection is used to
enable a remote multiple boiler controller to control the R7910 Control:
Local: 4-20mA Input on Terminal 9 & 10 is ignored.
4-20mA 4-20mA Input on Terminal 9 & 10 is used to control ring Rate % directly.
Modbus Modbus input used to control ring Rate % directly.
Central Heat Setpoint Source
Sets the remote (Energy Management System) control mode as follows:
Local: Local setpoint and modulation rate is used. 4-20mA input on Terminal 9 & 10 is ignored.
4-20mA 4-20mA Input on Terminal 9 & 10 is used as the temperature setpoint. The following two
parameters may be used to adjust the signal range.
Modbus Modbus is used as the temperature setpoint.
Central Heat 4-20mAdc Setup, 4 mA Water Temperature*
Sets the Central Heat Temperature Setpoint corresponding to 4mA for signal input on terminal 9 & 10.
Current below 4mA is considered invalid, (failed or incorrect wired input).
Central Heat 4-20mAdc Setup, 20 mA Water Temperature*
Sets the Central Heat Temperature Setpoint corresponding to 20mA for signal input on terminal 9 &
10. Current above 20mA is considered invalid, (failed or incorrect wired input).
Central Heat Demand Source
This parameter enables a Modbus input to be take the place of the Heating Thermostat Input:
Local Local Heating Thermostat input is used for Central Heat demand.
Modbus Modbus input is used for Central Heat demand.
Parameter and Description
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XI. Service and Maintenance
Important Product Safety Information
Refractory Ceramic Fiber Product
Warning:
The Repair Parts list designates parts that contain refractory ceramic fibers
(RCF). RCF has been classified as a possible human carcinogen. When
exposed to temperatures above 1805°F, such as during direct flame contact,
RCF changes into crystalline silica, a known carcinogen. When disturbed as a
result of servicing or repair, these substances become airborne and, if inhaled,
may be hazardous to your health.
AVOID Breathing Fiber Particulates and Dust
Precautionary Measures:
Do not remove or replace RCF parts or attempt any service or repair work
involving RCF without wearing the following protective gear:
1. A National Institute for Occupational Safety and Health (NIOSH)
approved respirator
2. Long sleeved, loose fitting clothing
3. Gloves
4. Eye Protection
•Take steps to assure adequate ventilation.
•Wash all exposed body areas gently with soap and water after contact.
•Wash work clothes separately from other laundry and rinse washing
machine after use to avoid contaminating other clothes.
•Discard used RCF components by sealing in an airtight plastic bag. RCF
and crystalline silica are not classified as hazardous wastes in the United
States and Canada.
First Aid Procedures:
•If contact with eyes: Flush with water for at least 15 minutes. Seek
immediate medical attention if irritation persists.
•If contact with skin: Wash affected area gently with soap and water.
Seek immediate medical attention if irritation persists.
•If breathing difficulty develops: Leave the area and move to a location
with clean fresh air. Seek immediate medical attention if breathing
difficulties persist.
•Ingestion: Do not induce vomiting. Drink plenty of water. Seek
immediate medical attention.
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Page 99
XI. Service and Maintenance (continued)
WARNING
Asphyxiation Hazard. This boiler requires regular maintenance and service to operate safely. Follow
the instructions contained in this manual.
Improper installation, adjustment, alteration, service or maintenance can cause property damage,
personal injury or loss of life. Read and understand the entire manual before attempting installation,
start-up operation, or service. Installation and service must be performed only by an experienced,
skilled, and knowledgeable installer or service agency
This boiler must be properly vented.
This boiler needs fresh air for safe operation and must be installed so there are provisions for
adequate combustion and ventilation air.
Asphyxiation Hazard. The interior of the venting system must be inspected and cleaned before the
start of the heating season and should be inspected periodically throughout the heating season for
any obstructions. A clean and unobstructed venting system is necessary to allow noxious fumes
that could cause injury or loss of life to vent safely and will contribute toward maintaining the boiler’s
efciency.
Installation is not complete unless a safety relief valve is installed into the tapping located on left side
of appliance or the supply piping. - See the Water Piping and Trim Section of this manual for details.
This boiler is supplied with safety devices which may cause the boiler to shut down and not re-start
without service. If damage due to frozen pipes is a possibility, the heating system should not be left
unattended in cold weather; or appropriate safeguards and alarms should be installed on the heating
system to prevent damage if the boiler is inoperative.
Burn Hazard. This boiler contains very hot water under high pressure. Do not unscrew any pipe
ttings nor attempt to disconnect any components of this boiler without positively assuring the water
is cool and has no pressure. Always wear protective clothing and equipment when installing, starting
up or servicing this boiler to prevent scald injuries. Do not rely on the pressure and temperature
gauges to determine the temperature and pressure of the boiler. This boiler contains components
which become very hot when the boiler is operating. Do not touch any components unless they are
cool.
Respiratory Hazard. Boiler materials of construction, products of combustion and the fuel contain
alumina, silica, heavy metals, carbon monoxide, nitrogen oxides, aldehydes and/or other toxic or
harmful substances which can cause death or serious injury and which are known to the state of
California to cause cancer, birth defects and other reproductive harm. Always use proper safety
clothing, respirators and equipment when servicing or working nearby the appliance.
Failure to follow all instructions in the proper order can cause personal injury or death. Read all
instructions, including all those contained in component manufacturers manuals which are provided
with the boiler before installing, starting up, operating, maintaining or servicing.
All cover plates, enclosures and guards must be in place at all times.
This boiler has a limited warranty, a copy of which is included with this boiler. It is the responsibility of
the installing contractor to see that all controls are correctly installed and are operating properly when the
installation is complete.
NOTICE
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Page 100
XI. Service and Maintenance (continued)
DANGER
Explosion Hazard. Electrical Shock Hazard. Burn Hazard. This boiler uses ammable gas, high
voltage electricity, moving parts, and very hot water under high pressure. Assure that all gas
and electric power supplies are off and that the water temperature is cool before attempting any
disassembly or service.
Do not attempt any service work if gas is present in the air in the vicinity of the boiler. Never modify,
remove or tamper with any control device.
WARNING
This boiler must only be serviced and repaired by skilled and experienced service technicians.
If any controls are replaced, they must be replaced with identical models.
Read, understand and follow all the instructions and warnings contained in all the sections of this
manual.
If any electrical wires are disconnected during service, clearly label the wires and assure that the wires
are reconnected properly.
Never jump out or bypass any safety or operating control or component of this boiler.
Read, understand and follow all the instructions and warnings contained in ALL of the component
instruction manuals.
Assure that all safety and operating controls and components are operating properly before placing
the boiler back in service.
Annually inspect all vent gaskets and replace any exhibiting damage or deterioration.
NOTICE
Warranty does not cover boiler damage or
malfunction if the following steps are not
performed at the intervals specied.
A. Continuously:
1. Keep the area around the boiler free from
combustible materials, gasoline and other ammable
vapors and liquids.
2. Keep the area around the combustion air
inlet terminal free from contaminates.
3. Keep the boiler room ventilation openings
open and unobstructed.
B. Monthly Inspections:
1. Inspect the vent piping and outside
air intake piping to verify they are open,
unobstructed and free from leakage or deterioration.
Check rodent screens in vent and air intake
terminations to verify they are clean and free of
debris. Call the service technician to make repairs if
needed.
2. Inspect the condensate drain system to verify
it is leak tight, open and unobstructed. Call the
service technician if the condensate drain system
requires maintenance.
3. Inspect the ue temperature sensor cap to verify
that it is free from leakage and deterioration. Call
the service technician to make repairs, if needed.
4. Inspect the water and gas lines to verify they
are free from leaks. Call the service technician to
make repairs if required.
NOTICE
Water leaks can cause severe corrosion damage
to the boiler or other system components.
Immediately repair any leaks found.
C. Annual Inspections and Service: In addition
to the inspections listed above the following should be
performed by a service technician once every year.
1. Follow the procedure for turning the boiler off
per Figure 32 “Operating Instructions”.
2. Inspect the wiring to verify the conductors are in
good condition and attached securely.
100
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