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
1
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 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.
WARNING
Indicates a potentially hazardous situation
which, if not avoided, could result in death,
serious injury or substantial property damage.
WARNINGS FOR THE OWNER
FOLLOW ALL INSTRUCTIONS and warnings
printed in this manual, the owner’s manual and
posted on the boiler.
MAINTAIN THE BOILER. To keep your boiler
safe and efficient, have a service technician
maintain this boiler as specified in Part XIII of the
manual.
CAUTION
Indicates a potentially hazardous situation
which, if not avoided, may result in moderate or
minor injury or property damage.
NOTICE
Indicates special instructions on installation,
operation, or maintenance which are important
but not related to personal injury hazards.
DO NOT BLOCK AIR FLOW into or around the
boiler. Insufficient air may cause the boiler to
produce carbon monoxide or start a fire.
KEEP FLAMMABLE LIQUIDS AWAY from the
boiler, including paint, solvents, and gasoline.
The boiler may ignite the vapors from the liquids
causing explosion or fire.
IF YOU ARE NOT QUALIFIED to install or
service boilers, do not install or service this one.
THE BOILER MAY LEAK WATER at the end of
its useful life. Be sure to protect walls, carpets,
and valuables from water that could leak from the
boiler.
PROTECT YOUR HOME OR BUSINESS IN
FREEZING WEATHER. A power outage, safety
lockout, or component failure will prevent your
boiler from lighting. In winter, your pipes may
freeze and cause extensive property damage. Do
not leave the heating system unattended during
cold weather unless alarms or other safeguards
are in place to prevent such damage
2
KEEP CHILDREN AND PETS away from hot
surfaces of the boiler, boiler piping, vent piping and
vent terminals.
CARBON MONOXIDE (CO) is an odorless, deadly
gas that may be introduced into your home by
any malfunctioning fuel-burning product or vent
system failure. Consider installing CO alarms near
bedrooms in all levels of the building to warn you
and your family of potential CO exposure.
DANGER
Explosion Hazard. 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, DO 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.
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.
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.
4
TABLE OF CONTENTS
I.Product Description, Specications and Dimensional Data......................6
XIII. Repair Parts ............................................................................................. 120
Appendix A - Instructions for High altitude Installations Above 2000 ft..... 131
5
I. Product Description, Specications and Dimensional Data
Phantom X Series boilers are condensing high efciency
gas-red direct vent hot water boilers designed for use
in forced hot water space or space heating with indirect
domestic hot water heating systems, where supply water
temperature does not exceed 210°F. These boilers have
special coil type stainless steel heat exchangers, constructed,
tested and stamped per Section IV ‘Heating Boilers’ of
ASME Boiler and Pressure Vessel Code, which provide a
Table 1: Specications
Specication
Altitude (ft. above sea level)
Fuel
Max. Allowable Water Temperature (°F)210210
Max. Allowable Working Pressure (psi)160160
Factory Supplied Safety Relief Valve (psi)*5050
Boiler Water Volume (gal.)3.44.3
Heat Transfer Area (sq. ft.)41.858.1
Approx. Shipping Weight (lb.)316368
1
Follow Instructions for High Altitude Installations above 2000 ft. (see Appendix A)
2
PHNTM500C LP cannot be installed above 6,000 ft.
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 “C” (example: PHNTM399CHNL2HUC).
PP Condensate Drain K - Inch3/4 PVC Compression Coupling
PVC Combustion Air Connector - Inch4
CPVC/PP/SS Vent Connector - Inch
(mm)
PHNTM399CPHNTM500C
6
"
7
8
16
"
1
2
43
"
1
4
"
1
11
16
"
1
2
32
"
5
16
17
"
5
16
5
ACCESS PANEL
LOW VOLTAGE
KNOCKOUTS
(24 VOLTS)
LINE VOLTAGE
KNOCKOUTS
(120 VOLTS)
"
13
16
7
'G'
GAS VALVE INLET
'J' 1-1/2" FPT
SUPPLY TAPPING
ACCESS PANELACCESS PANEL
'H' 1-1/2" FPT
RETURN TAPPING
3/4" FPT
TAPPING
RELIEF/DRAIN
'K'
CONDENSATE DRAIN
ACCESS PANELACCESS PANEL
'B'
'C'
'E'
'D'
Figure 1: Phantom X - Model PHNTM399C
'A'
"
9
16
2
"
1
2
"
1
8
5
5
I. Product Description, Specications and Dimensional Data (continued)
4" PVC COMBUSTION
AIR CONNECTOR
4" CPVC/PP/SS
VENT CONNECTOR
"
1
2
12
7
"
7
8
16
"
1
11
ACCESS PANEL
"
16
"
1
4
1
(24 VOLTS)
KNOCKOUTS
LOW VOLTAGE
16
35
"
5
16
20
"
3
8
12
"
3
8
5
(120 VOLTS)
KNOCKOUTS
LINE VOLTAGE
'H' 2" MPT
ACCESS PANELACCESS PANEL
RETURN TAPPING
'J' 2" MPT
SUPPLY TAPPING
'G'
GAS VALVE INLET
'K'
ACCESS PANELACCESS PANEL
CONDENSATE DRAIN
'C'
'E'
'D'
'A'
Figure 2: Phantom X - Model PHNTM500C
"
5
16
8
"
9
16
2
I. Product Description, Specications and Dimensional Data (continued)
8
4" PVC COMBUSTION
AIR CONNECTOR
4" CPVC/PP/SS
VENT CONNECTOR
"
1
2
"
1
8
8
"
1
2
15
5
I. Product Description, Specications and Dimensional Data (continued)
Table 3: Ratings
Phantom X Series Gas-Fired Boilers
Model
Number
PHNTM399C8039937532694.194.5
PHNTM500C10050048542297.096.0
Ratings shown are for installations at sea level and elevations up to 2000 ft. at minimum vent length. For elevations above 2000
ft., see Appendix A Instructions for High Altitude Installations above 2000 ft.
1
Net AHRI Water Ratings based on allowance of 1.15. Consult manufacturer before selecting boiler for installations having
unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.
Input (MBH)
Min.Max.
Gross Output
(MBH)
Net Ratings Water
(MBH)
1
Thermal
Efciency (%)
Combustion
Efciency (%)
II. Unpacking Boiler
NOTICE
Do not drop boiler.
A. Move boiler to approximate installed position.
B. Remove all crate fasteners.
C. Lift and removeoutside container.
D. Remove boiler from cardboard positioning sleeve
on shipping skid.
E. Move boiler to its permanent location.
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 Co. 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.
WARNING
Asphyxiation Hazard.
Apply supplied dielectric grease to gasket
inside 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 CSD-1.
B. Boileriscertiedfor 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 4 for minimum listed
clearances from combustible material. Recommended
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.
Table 4: Corrosive Combustion Air Contaminants
and Sources
Contaminants to avoid:
Spray cans containing chloro/uorocarbons (CFC’s)
Permanent wave solutions
Chlorinated waxes/cleaners
Chlorine-based swimming pool chemicals
Calcium chloride used for thawing
Sodium chloride used for water softening
Refrigerant leaks
Paint or varnish removers
Hydrochloric acid/muriatic acid
Cements and glues
Antistatic fabric softeners used in clothes dryers
Chlorine-type bleaches, detergents, and cleaning solvents found
in household laundry rooms.
Adhesives used to fasten building products and other similar
products
Excessive dust and dirt
Areas likely to have contaminants:
Dry cleaning/laundry areas and establishments
Swimming pools
Metal fabrication plants
Beauty shops
Refrigeration repair shops
Photo processing plants
Auto body shops
Plastic manufacturing plants
Furniture renishing areas and establishments
New building construction
Remodeling areas
Garages with workshops
10
III. Pre-Installation and Boiler Mounting G. General (continued)
weight of boiler, water and all additional system
components.
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. Locate combustion air
pipe termination away from areas that may contaminate
combustion air, (see Table 4). In particular, avoid
areas near chemical products containing chlorines,
and detergents. 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.
G. General.
1. Phantom X boilers are intended for installations in
an area with a oor drain, or in a suitable drain pan
to prevent any leaks or safety relief valve discharge
resulting in property damage.
2. Phantom X boilers are not intended to support
external piping and venting. All external piping and
venting must be supported independently of the
boiler.
3. Phantom X boilers must be installed level to prevent
condensate from backing up inside the boiler.
4. Boiler Installation:
a. For basement installation provide a solid level
base such as concrete where oor is not level or
where water may be encountered on the oor
around boiler. Floor must be able to support
Boiler Clearances to Combustible (and NonCombustible) Material:
Models PHNTM399C and PHNTM500C:
These boilers 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
provided 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:
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.
1. The boiler front is accessible through a door.
2. Access is provided to the condensate trap located on
the left side of boiler.
3. Access is provided to thermal link located at the
boiler rear.
Table 5: Vent Pipe Clearances to Combustible Material
Listed Direct
Vent System
Standard
Two-Pipe CPVC/PVC Vent and PVC Combustion Air Intake
Optional
Two-Pipe Rigid Polypropylene Vent (or, Flexible Polypropylene
Liner for Vertical Venting only) and Rigid Polypropylene or PVC
Combustion Air Intake
Optional
Two-Pipe Stainless Steel Vent and Galvanized Steel or PVC
Combustion Air Intake
Vent Pipe Material
CPVC/PVC
Rigid Polypropylene (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),
4 in. (100 mm or 110 mm)
3 in. (80 mm),
4 in. (100 mm or 110 mm)
3 in. (80 mm),
4 in. (100 mm or 110 mm)
Minimum
Clearance to
Combustible
Material
1 in. (25 mm)
1 in. (25 mm)
1 in. (25 mm)
11
III. Pre-Installation and Boiler Mounting G. General (continued)
Figure 4: Clearances To Combustible and Non-combustible Material
H. Boiler Stacking
1. For installations with unusually high space heating
and/or domestic hot water heating loads, where
employing multiple boilers will offer the benets of
greater operational efciency, oor space savings
and boiler redundancy, boilers may be installed
stacked maximum one boiler on top of another.
Refer to Table 6 “Phantom X Boiler Model Stacking
Combinations” for details.
Table 6: Phantom X Boiler Model Stacking
Combinations
Bottom
Boiler Model
PHNTM399C
PHNTM500CPHNTM399C or PHNTM500C
PHNTM399C
2. To eld assemble individual Phantom X 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 X boiler is factory packaged
with 2 stacking boiler attachment brackets (P/N
101679-01) and the bracket mounting hardware
12
Top Boiler Model
[six (6) self-drilling hex washer head plated #8
x ½” long screws, P/N 80860743]. Locate and
remove the brackets and the hardware. The
stacking boiler attachment bracket has three
7/32” diameter holes punched in a triangular
pattern. See Figure 5 “Boiler Stacking”.
c. Phantom X 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 X
boiler model variable depth.
d. Position the upper boiler on 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.
III. Pre-Installation and Boiler Mounting G. General (continued)
• 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 fourth
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 sidewall venting individual model vent
terminals must terminate no closer than 12
in. (300 mm) horizontally and 3 ft. (900 mm)
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 in. (300 mm)
horizontally. If vertical terminals cannot end in
one plane, they must be spaced no closer than 3
ft. (900 mm) 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
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.
13
III. Pre-Installation and Boiler Mounting G. General (continued)
14
Figure 5: Boiler Stacking
IV. Venting
WARNING
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 specied vent and combustion air pipe diameters.
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 X may be installed as a direct vent/
sealed combustion boiler or with optional room
air for combustion. Direct vent is recommended
for residential applications. For direct vent,
pipe combustion air from the outdoors directly
to the boiler cabinet. Room air is optional for
commercial applications. For room air, provide
combustion and ventilation air per the National
Fuel Gas Code, ANSI Z223.1, or, in Canada,
Installation Code for Gas Burning Appliances
and Equipment, CGA Standard B149.
c. The following combustion air/vent system
options are listed for use with the Phantom X
boilers (refer to Table 7):
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.
iv.Room Air for Combustion – CPVC/
PVC, polypropylene, or stainless steel pipe
serves to expel products of combustion and
combustion air is supplied from the boiler
room. Refer to Part E for specic details.
2. Vent/Combustion Air Piping
a. Do not exceed maximum vent/combustion air
lengths listed in Table 8. 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 9 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 10.
15
IV. Venting A. General Guidelines (continued)
Table 7: Vent/Combustion Air Intake System Options
Vent & Intake
Materials
Standard CPVC/PVC Two-Pipe,
CPVC/PVC
Vent and PVC Air Intake
Optional Polypropylene
Two-pipe, Rigid PP
Vent or Flexible PP
Vent (Vertical Only) and Rigid PP
or PVC Air Intake
Optional Stainless Steel
Two-pipe, SS Vent and
Galvanized Steel or PVC
Air Intake
Option
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Penetration
Through
TerminationFigures
Structure
IntakeHorizontal Sidewall90° Elbow w/ Screen
VentHorizontal SidewallCoupling w/ Screen
IntakeHorizontal Sidewall
VentHorizontal Sidewall
IntakeHorizontal Sidewall90° Elbow w/ Screen
VentVertical RoofCoupling w/ Screen
IntakeVertical Roof(2) 90° Elbows w/ Screen
VentVertical RoofCoupling w/ Screen
IntakeN/A - Room Air
VentHorizontal Sidewall90° Elbow or Tee w/ Screen
IntakeN/A - Room Air
VentVertical RoofCoupling w/ Screen
IntakeHorizontal Sidewall
VentHorizontal Sidewall
IntakeHorizontal Sidewall
VentHorizontal Sidewall
IntakeHorizontal Sidewall
VentVertical Roof
IntakeVertical Roof
VentVertical Roof
IntakeN/A - Room Air
VentHorizontal Sidewall
IntakeN/A - Room Air
VentVertical Roof
IntakeHorizontal Sidewall 90° Elbow w/Screen
VentHorizontal Sidewall
IntakeHorizontal Sidewall 90° Elbow w/Screen
VentVertical Roof
IntakeVertical Roof(2) 90° Elbows w/Screen
VentVertical Roof
IntakeN/A - Room Air
VentHorizontal Sidewall90° Elbow or Tee w/Screen
IntakeN/A - Room Air
VentVertical Roof90° Elbow or Tee w/Screen
Ipex Low Prole913
UV Resistant 90° Elbow
w/Screen
UV Resistant Straight Pipe
w/Screen
Ipex Low Prole913, 17, 18
UV Resistant 90° Elbow
w/Screen
UV Resistant Straight Pipe
w/Screen
(2) UV Resistant 90° Elbows
w/Screen
UV Resistant Straight Pipe
w/Screen
UV Resistant 90° Elbow
w/Screen
UV Resistant Straight Pipe
w/Screen
Straight Termination
w/Screen
Straight Termination
w/Screen
Straight Termination
w/Screen
Component
Table
7, 811, 12
7, 8, 10not provided
1014
7, 8not provided
10not provided
7, 817, 18
7, 8, 1017, 18
1017, 18
7, 817, 18
1017, 18
7, 819, 20, 21
7, 8, 1019, 20, 21
1019, 20, 21
7, 819, 20, 21
1019, 20, 21
Reference
Section
A, B
A, B, E
A,C
A,C, E
A, D
A, D, E
16
IV. Venting A. General Guidelines (continued)
Table 8: Vent and Combustion Air Pipe Sizes and Equivalent Lengths
(Applies to All Listed Vent/Combustion Air System Options)
Combustion Air LengthVent Length
Boiler ModelOption
Standard
PHNTM399C
PHNTM500C
Diameter
Reduced
Diameter
Standard
Diameter
Reduced
Diameter
Pipe Dia., in.
(mm)
4 (100 or 110)0100 (30.5)4 (100 or 110)2.5 (760)100 (30.5)5
3 (80)050 (15.2)3 (80)2.5 (760 )50 (15.2 )5
4 (100 or 110)0100 (30.5)4 (100 or 110)2.5 (760)100 (30.5)11
3 (80)050 (15.2)3 (80)2.5 (760)50 (15.2 )12
Min., ft.
(m)
Max., ft.
(m)
Pipe Dia., in.
(mm)
Min., ft.
(m)
Table 9: Vent System and Combustion Air System Component Equivalent Length
(Applies to All Listed Vent/Combustion Air System Options)
ComponentEquivalent Length
Nominal Diameter3 in. (80 mm)4 in. (100 or 110 mm)
90° Elbow, Short Radius10 ft. (3.0 m)13 ft. (4.0 m)
90° Elbow, Long Sweep/Sanitary4.0 ft. (1.2 m)9 ft. (2.7 m)
45° Elbow3.0 ft. (0.9 m)4.5 ft. (1.4 m)
Max., ft.
(m)
Approx. Derate at
Max. Length
(%)
Table 10: Vent and Combustion Air Equivalent Length Calculation Worksheet
Combustion AirVent
Component
Straight Pipex=AE
90° Elbow,
Short Radius
90° Elbow,
Long Sweep/
Sanitary
45° Elbowx=DH
Notes:
1. Total equivalent length cannot exceed maximum equivalent length shown in Table 8.
2. Use elbow equivalent lengths provided in Table 9.
3. Combustion air and vent terminations do not count towards total equivalent length.
4. 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
Measured length = 35 ft.
Equivalent length =35 ft. x 1.2 = 42 ft.
5. Maximum equivalent length of exible polypropylene liner is 48 ft. (14.6 m).
Equivalent
Length Per
Piece
Combustion Air Total
Equivalent Length
x Quantity=
x=BF
x=CG
Subtotal
Equivalent Length
=A+B+C+DVent Total
Equivalent
Length Per
Piece
Equivalent Length
xQuantity =
Subtotal Equivalent
Length
=E+F+G+H
17
IV. Venting A. General Guidelines (continued)
18
Two-Pipe System Vent Terminal (Shown), Two-Pipe System Air Intake Terminal (Not Shown)
Figure 6: Location of Vent Terminal Relative to Windows, Doors, Grades, Overhangs, Meters and Forced Air Inlets -
IV. Venting A. General Guidelines (continued)
b. Maintain minimum clearance to combustible
materials. See Table 5 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.
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.
Do not penetrate any part of the vent system with
fasteners.
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.
3. Vent/Combustion Air Terminals
Install venting system components on exterior
of building only as specically required by these
instructions (refer to Figure 6).
a. Use only listed vent/combustion air terminals.
i. Horizontal Sidewall Venting: Use coupling
for vent and 90° elbow pointed down for
combustion air as shown in Figure 7 or
Figure 8. If using room air for combustion,
use 90° elbow or tee for vent. Alternate low
prole termination is shown in Figure 9.
Figure 7: Direct Vent - Sidewall Standard Terminations
19
IV. Venting A. General Guidelines (continued)
20
Figure 8: Direct Vent - Sidewall Snorkel Terminations
Figure 9: Direct Vent - Sidewall Low Prole Termination
ii. Vertical Roof Venting: Use coupling on vent
and two 90° elbows turned downwards for
combustion air as shown in Figure 10 and
Figure 11.
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.
36 in. (915 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.
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.
IV. Venting A. General Guidelines (continued)
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.
Figure 10: Direct Vent - Vertical Terminations
j. Do not locate the vent terminal under decks or
similar structures.
k. Top of terminal must be at least 24 in.
(600mm) below ventilated eves, softs, and
other overhangs. In no case may the overhang
exceed 48 in. (1200 mm). 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 6 for details.
l. Maintain minimum 12 in. (300 mm) horizontal
spacing between vent terminal and a building
corner.
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
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.
Figure 11: Direct Vent - Vertical Terminations
with Sloped Roof
21
IV. Venting B. CPVC/PVC Venting (continued)
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.
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.
1. Components
a. See Table 11 for CPVC/PVC vent and
combustion air components included with boiler.
b. See Table 12 for CPVC/PVC installer provided
vent and combustion air components required for
optional horizontal snorkel terminals shown in
Figure 8.
c. See Table 13 for installer provided Ipex Low
Prole Vent Termination Kits.
d. See Table 14 for CPVC/PVC installer provided
vent and combustion air components required for
optional vertical roof terminals shown in Figure
10.
2. Field Installation of CPVC/PP/SS Vent
Connector
Refer to Figure 12 and following steps:
a. Position the vent connector and gasket onto
boiler rear panel and insert vent connector into
heat exchanger vent outlet.
b. Align vent connector plate and gasket clearance
holes with rear panel engagement holes. Be sure
combustion sample port is on left side looking
at rear of boiler. Then, secure the connector and
gasket to the panel with four mounting screws.
3. Near-Boiler Vent/Combustion Air Piping
Refer to Figure 13 and the following Steps:
a. Apply supplied dielectric grease to gasket inside
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 clamp.
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. Apply PVC primer and cement and insert
Schedule 40 PVC combustion air pipe (installer
provided) into the combustion air connector with
a slight twisting motion.
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.
22
IV. Venting B. CPVC/PVC Venting (continued)
WARNING
Asphyxiation Hazard. Apply supplied dielectric grease to gasket inside vent section of 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.
Table 11: CPVC/PVC Vent & Air Intake Components Included With Boiler
Table 12: CPVC/PVC Vent & Air Intake Components (Installer Provided) required for
Optional Horizontal Snorkel Termination
Models PHNTM399C & PHNTM500C
Standard 4 in. Intake/4 in. Vent Kit
includes
Quantity
Vent Components
Schedule 40 PVC Pipe x up to 7 ft. (2.1 m) max. vertical run2
Schedule 40 PVC 90° Elbow4
Schedule 40 PVC Pipe x 6 in. (150 mm) min. horizontal run2
Schedule 40 PVC Pipe x 9 in. (230 mm)min. horizontal runN/A
Schedule 40 CPVC Pipe x 6 in. (150 mm) min. horizontal
run
PHNTM399C & PHNTM500C
Vertical (Roof) Termination,
4 in. Intake/4 in. Vent
1
23
IV. Venting B. CPVC/PVC Venting (continued)
Figure 12: Field Installation CPVC/PP/SS Vent Connector
Figure 13: Near-Boiler Vent/Combustion Air Piping
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 14
and Table 15.
c. All CPVC/PVC vent and combustion air
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.
24
5. Horizontal Sidewall Termination
a. Standard Two-Pipe Termination
See Figure 7.
i. Vent Piping
Running PVC vent pipe inside Enclosures
and through Walls:
• 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
non-combustible walls.
• PVC vent pipe may not be used
to penetrate combustible or noncombustible walls unless all following
three conditions are met simultaneously
(see Figure 15):
- 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 15 is maintained around
outside of the vent pipe to provide
air circulation
• If above three conditions cannot be
met simultaneously when penetrating
a combustible wall, use CPVC pipe for
wall penetration.
• Size and cut wall opening such that a
minimal clearance is obtained and to
allow easy insertion of vent pipe.
Figure 14: CPVC/PVC Expansion Loop and Offset
Figure 15: Wall Penetration Clearances
for PVC Vent Pipe
• Apply sealant between vent pipe and wall
opening to provide weather-tight seal.
Sealant should not restrain the expansion
of the vent pipe.
• Install contractor provided optional trim
plate on wall outside surface to cover
wall opening (see Figure 15).
• Secure trim plate to wall with nails or
screws and seal ID and plate OD or
perimeter with sealant material.
25
IV. Venting B. CPVC/PVC Venting (continued)
Figure 16: Screen Installation
• Install screen and vent terminal
(supplied with boiler). See Figure 16 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 screen and combustion air
terminal (supplied with boiler). See
Figure 16 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 Figure 8.
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.
NOTICE
Exterior run to be included in equivalent vent/
combustion air lengths.
• Install screen and vent terminal
(supplied with boiler), see Figure 16 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 vent pipe.
See Figure 8.
• At top of air pipe length install another
PVC 90° elbow so that elbow leg is
opposite the building’s exterior surface.
• Install screen and combustion air
terminal (supplied with boiler). See
Figure 16 for appropriate conguration.
• Brace exterior piping if required.
6. Vertical Roof Termination
a. Standard Two-Pipe Termination
See Figures 10 and 11.
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 10 and
11.
- 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
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 9.
• At top of vent pipe length install another
PVC 90° elbow so that elbow leg is
opposite the building’s exterior surface.
26
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.
- 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.
IV. Venting B. CPVC/PVC Venting - C. Polypropylene Venting (continued)
• Install screen and vent terminal
(supplied with boiler). See Figure 16 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 screen and combustion air
terminal (supplied with boiler). See
Figure 16 for appropriate conguration.
• Brace exterior piping if required.
C. Polypropylene Venting
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.
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 16. 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’.
ii. Centrotherm Eco Systems InnoFlue SW
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 17 for specic M&G Duravent
components.
c. See Table 18 for specic Centrotherm Eco
Systems components.
2. Field Installation of Polypropylene
Adapters
a. Vent Connector (see Figure 17)
i. No adapter is required for M&G DuraVent
PolyPro vent pipe unless vent diameter is
reduced per Table 8. See Table 17 for M&G
DuraVent boiler adapters for reduced vent
diameter. An adapter is always required for
Centrotherm InnoFlue vent pipe. See Table
18 for Centrotherm InnoFlue boiler adapters.
WARNING
27
IV. Venting C. Polypropylene Venting (continued)
ii. Install CPVC/PP/SS vent connector. Follow
instructions in “2. Field Installation of
CPVC/PP/SS Vent Connector” under “B.
CPVC/PVC Venting.”
iii. Apply provided dielectric grease to gasket
inside vent connector that will be in contact
with adapter.
iv. Push and twist adapter into vent system
connector until adapter bottoms out.
v. Tighten clamp to secure adapter in CPVC/
PP/SS vent connector.
b. Combustion Air Connector (see Figure 18)
i. No adapter is required if using PVC
combustion air pipe. An adapter is required
for both M&G DuraVent PolyPro (see Table
17) and Centrotherm InnoFlue (see Table
18) combustion air pipe.
ii. Insert adapter into combustion air connector.
Adapter has gasket to seal against
combustion air connector.
3. System Assembly
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. Terminations
a. For standard horizontal sidewall terminations, see
Figures 7 and 8. For vertical roof terminations,
see Figures 10 and 11. Use UV resistant
components listed in Tables 17 or 18.
b. Install screens per Figure 16. Remove gasket
inside termination and install screen in place of
gasket. If using Centrotherm InnoFlue end pipe,
screen ts onto end of pipe.
c. For low prole sidewall termination, see Figure
9. Use low prole termination listed in Table 13
and adapter kit listed in Table 17 or 18.
5. 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.
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.
See Figure 19 or Figure 20 for locking band
clamp installation.
28
Table 16: Listed Polypropylene Vent System
Manufacturers
MakeModel
PolyPro Single Wall Rigid Vent
M&G/DuraVent
Centrotherm Eco
Systems
PolyPro Flex Flexible Vent (PHNTM399C and
PHNTM500C)
InnoFlue SW Rigid Vent
Flex Flexible Vent (PHNTM399C and
PHNTM500C)
Ipex Low
Adapter Kit:
Prole Termination
Wall Plate
Pipe Adapter &
Ipex Low
Pipe Adapter &
Prole Adapter Kit:
Wall Plate
ISLTK03
ISLTK04
Flex
Chimney
Termination: UV
Sidewall* or Roof
Resistant Straight
3PPS-FKL3PPS-HLKL
Lining Kit
Pipe w/ Screen
Pipe: 3PPS-12BL
Screen: 3PPS-BG
4PPS-R3L
Boiler Adapter
w/Screen
90° Elbows
(2) UV Resistant
Roof Termination:
Screen: 3PPS-BG
Elbow: 3PPS-E90BL
4PPS-FKL4PPS-HLKL
Pipe: 4PPS-12BL
Screen: 4PPS-BG
PHNTM399C &
Adapter Required
PHNTM500C: No
Screen: 4PPS-BG
Elbow: 4PPS-E90BL
Flex
Chimney
Termination: UV
Sidewall* or Roof
Resistant Straight
Boiler Adapter
or
IFCK0325
Lining Kit
IFCK0335
ISEP0339
Pipe: ISEP03 or
Pipe w/Screen
Screen: IASPP03
ISRD0403
ISAAL0404 and
Screen
90° Elbows w/
(2) UV Resistant
Roof Termination:
Screen: IASPP03
Elbow: ISELL0387UV
or
IFCK0425
IFCK0435
ISEP0439
Pipe: ISEP04 or
Screen: IASPP04
ISAAL0404
Screen: IASPP04
Elbow: ISEL0487UV
Sidewall
Combustion AirVent
90°Elbow
Termination:
UV Resistant
Boiler
Adapter
Clamp
Pipe Joint
Locking Band
Pipe
Nominal
Diameter
Boiler Model
IV. Venting B. CPVC/PVC Venting (continued)
Table 17: M&G DuraVent PolyPro Polypropylene Vent/Combustion Air System Components
w/Screen
Screen: 3PPS-BG
Elbow: 3PPS-E90BL
4PPS-R3L
4PPS-ADL with
3PPS-LBC
3PPS-LB2 or
3 in.
(80 mm)
PHNTM399C (reduced dia.)
PHNTM500C (reduced dia.)
Screen: 4PPS-BG
Elbow: 4PPS-E90BL
4PPS-ADL
4PPS-LBC
4PPS-LB2 or
4 in.
(100 mm)
PHNTM399C (standard dia.)
PHNTM500C (standard dia.)
* Note: When using room air for combustion, use UV resistant 90° elbow or tee for sidewall vent termination. UV resistant 90° elbow part numbers: 3PPS-E90BL(3 in.), 4PPS-E90BL (4 in.).
UV resistant tee part numbers: 3PPS-TBL (3 in.), 4PPS-TBL (4 in.), 6PPS-TTBL (6 in.).
* Note: When using room air for combustion, use UV resistant 90° elbow or tee for sidewall vent termination. UV resistant 90° elbow part numbers: ISEL0387UV (3 in.).
UV resistant tee part numbers: ISTT0320 (3 in.).
See Centrotherm InnoFlue literature for other required component part numbers such as straight pipe, elbows, restops, and vent supports.
29
IV. Venting C. Polypropylene Venting (continued)
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 PHNTM399C and PHNTM500C 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 21 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.
Figure 17: Field Installation of
Polypropylene Vent Adapter
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.
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,
Figure 18: Field Installation of Polypropylene
Combustion Air Adapter
gasket and tting installation, optional tooling
availability/usage, routing through masonry
chimney for combustion product venting or,
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 X boiler
Installation, Operating and Service Instructions,
the more restrictive instructions shall govern.
30
IV. Venting C. Polypropylene Venting
Figure 19: Locking Band Clamp Installation,
M&G DuraVent or Centrotherm InnoFlue
Venting of Other Appliances (or Fireplace)
into Chase or Adjacent Flues Prohibited!
Figure 20: Alternate Locking Band Clamp
Installation, M&G DuraVent
Figure 21: Flexible Vent in Masonry Chimney with Separate Combustion Air Intake
31
IV. Venting D. Stainless Steel Venting (continued)
D. Stainless Steel Venting
NOTICE
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.
1. Components
a. Acceptable listed stainless steel vent system
manufacturers and components are shown in
Tables 19, 20 and 21.
b. Alternate listed stainless steel vent system
manufacturers and components are shown in
Tables 20 and 21.
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.
c. Where the use of “silicone” is called for in the
following instructions, use GE RTV 106 or
equivalent for the vent collar. Seal galvanized
combustion air piping sections with any generalpurpose silicone sealant such as GE RTV102.
Seal PVC combustion air piping sections with
PVC cement.
d. Do not drill holes in vent pipe.
2. Field Installation of Stainless Steel Vent
Adapter (see Figure 22)
a. No adapter is required for stainless steel vent
pipe unless vent diameter is reduced per Table 8.
See Table 19, 20, or 21 for adapters for reduced
vent diameter.
Table 20: M&G DuraVent FasNSeal Stainless Steel Vent System Components, Single Wall
Note: When using room air for combustion, use tee for sidewall vent termination. Termination tee part numbers: FSTT3 (3 in.),
FSTT4 (4 in.).
See M&G DuraVent FasNSeal literature for other required component part numbers such as straight pipe, elbows, restops, and vent supports.
Nominal Pipe
Diameter
3 in. (80 mm)FS0403TRFSBS3FSWT3
4 in. (100 mm)
32
Boiler Adapter
PHNTM399C &
PHNTM500C:
No Adapter Required
Sidewall * or Roof Termination:
Straight Termination w/Screen
FSBS4FSWT4
Wall Thimble
IV. Venting D. Stainless Steel Venting (continued)
Table 21: Z-Flex, Z-Vent (SVE Series III, Z-Vent III) Stainless Steel Vent System Components, Single Wall
* Note: When using room air for combustion, use 90° elbow or tee for sidewall vent termination. Termination elbow part numbers:
2SVSTEX0390 (3 in.), 2SVSTEX0490 (4 in.). Termination tee part numbers: 2SVSTTX03 (3 in.), 2SVSTTX04 (4 in.).
See Z-Flex literature for other required component part numbers such as straight pipe, elbows, restops, and vent supports.
3 in. (80 mm)2SVSR04032SVSTPX032SVSWTF03
PHNTM399C & PHNT-
4 in. (100 mm)
M500C: No Adapter
Required
Sidewall * or Roof Termination:
Straight Termination w/Screen
2SVSTPX042SVSWTF04
Wall Thimble
b. Install CPVC/PP/SS vent connector. Follow
instructions in “2. Field Installation of CPVC/
PP/SS Vent Connector” under “B. CPVC/PVC
Venting.”
c. Apply provided dielectric grease to gasket inside
vent connector that will be in contact with
adapter.
d. Push and twist adapter into vent system
connector until adapter bottoms out.
e. Tighten clamp to secure adapter in CPVC/PP/SS
vent connector.
3. System Assembly
Figure 22: Field Installation of Stainless
Steel Vent Adapter
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.
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.
33
IV. Venting D. Stainless Steel Venting - E. Optional Room Air for Combustion (continued)
4. Horizontal Sidewall Vent Termination
a. Standard Two-Pipe Termination
See Figure 7.
i. Vent Termination
• Use components listed in Table 19, 20 or
21.
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.
• Allow the silicone to cure per the silicone
manufacturer’s instructions before
operating the boiler.
ii. Combustion Air Termination
• Use a 90° elbow directed downward..
• Install a screen 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 Figure 8.
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 8.
• 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.
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 8.
• At top of vent pipe length install another
90° elbow so that the elbow leg is
opposite the building’s exterior surface.
• Install screen and horizontal vent
terminal.
• Brace exterior piping if required.
5. Vertical Vent Termination
a. Standard Two-Pipe Termination
See Figures 10 and 11.
i. Vent Termination
• Use the terminal supplied by the vent
system manufacturer shown in Table
19, 20 or 21. 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 10.
• Install screen in the combustion air
terminal. Use a screen having 1/2 in. x
1/2 in. (13 mm x 13 mm) or larger mesh.
E. Optional Room Air for Combustion
1. General Guidelines
a. Room air is optional for commercial applications.
Room air uses one pipe to expel products of
combustion directly outdoors with combustion
air supplied from boiler room or enclosure.
Direct vent is recommended for residential
applications. Direct vent uses two pipes, one to
expel products of combustion directly outdoors
and one to supply combustion air to the boiler
directly from outdoors. See preceding sections A
through D for direct vent instructions.
b. Avoid combustion air contaminants in the boiler
room. See Table 4. Permanently remove any
contaminants found in the boiler room. If
contaminants cannot be removed, do not use
room air for combustion.
34
IV. Venting E. Optional Room Air for Combustion - F. Removing the Existing Boiler (continued)
3. Terminations
WARNING
Sources of combustion air contaminants,
including chlorines, chlorouorocarbons
(CFC’s), petroleum distillates, detergents, volatile
vapors or other chemicals must not be present in
the boiler room. If any of these contaminants is
present, severe boiler corrosion and failure will
result.
a. For standard horizontal sidewall terminations,
see Figures 7 and 8. When using room air for
combustion, use 90° elbow or tee for sidewall
vent termination.
NOTICE
Use 90° elbow or tee for horizontal sidewall vent
termination when using room air for combustion.
2. Outdoor Openings to Boiler Room
a. Provide combustion and ventilation air to the
boiler room or enclosure. Follow the National
fuel Gas Code, ANSI Z223.1, or, in Canada,
Installation Code for Gas Burning Appliances
and Equipment, CGA Standard B149 Code as
well as all applicable local codes. Use one of the
following two methods.
b. Two Permanent Openings Method: Provide
two permanent openings, once within 12 in. (300
mm) of the top of the enclosure and one within
12 in. (300 mm) of the bottom of the enclosure.
Openings must communicate directly, or by
ducts, with the outdoors or spaces that freely
communicate with the outdoors, as follows:
i. Direct communication or through vertical
ducts: minimum free area of each opening
shall be 1 in.2/4000 Btu/hr (550 mm2/kW) of
total input rating of all appliances within the
enclosure.
ii. Horizontal ducts: minimum free area of
each opening shall be 1 in.2/2000 Btu/hr
(1100 mm2/kW) of total input rating of all
appliances within the enclosure.
c. One Permanent Opening Method: Provide
one permanent opening, commencing within 12
in. (300 mm) of the top of the enclosure. The
opening shall communicate through a vertical
or horizontal duct to the outdoors or spaces that
freely communicate with the outdoors and shall
have a minimum free area of the following:
i. 1 in.2/3000 Btu/hr (700 mm2/kW) of total
input rating of all appliances located within
the enclosure.
ii. Not less than the sum of the areas of all vent
connectors in the space.
d. Motorized Louvers or Dampers: Motorized
louvers or dampers must be interlocked with the
boiler to allow ignition and ring of the burner
only when louvers are in the fully-open position.
Wire the interlock to the Auto Reset External
Limit connections. See Section VIII. Electrical.
b. For vertical roof terminations, see Figures 10 and
11.
F. 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.
35
IV. Venting F. Removing the Existing Boiler - G. Multiple Boiler Installation Venting (continued)
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.
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.
36
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.
G. Multiple Boiler Installation Venting
1. Vent Piping and Terminations
a. Multiple boiler vent terminations are shown in
Figure 23.
b. Each individual boiler must have its own vent
pipe and vent terminal. Refer to Paragraphs A
through F (as applicable) for individual boiler
vent guidelines and options.
WARNING
Asphyxiation Hazard. No common manifold
venting (vent piping and vent terminals) is
permitted.
c. Do not exceed the individual boiler maximum
vent length listed in Table 8.
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.
NOTICE
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.
IV. Venting G. Multiple Boiler Installation Venting (continued)
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 23.
b. Each individual boiler must have own
combustion air pipe and terminal. Refer to
Paragraphs A through F (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 8.
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.
37
IV. Venting G. Multiple Boiler Installation Venting (continued)
38
Figure 23: Multiple Boiler Direct Vent Termination
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 1, 2, 3 and 24.
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 24.
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 22 “Maximum Condensate Flow”.
Table 22: Maximum Condensate Flow
Boiler
Model
PHNTM399C4.5
PHNTM500C5.6
*Assumes 100% of water in fuel condenses.
*Maximum Condensate Flow,
GPH
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.
39
V. Condensate Disposal (continued)
Figure 24: Condensate Trap and Drain Line
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. Limestone chips will get coated by neutral salts
(product of chemical reaction between limestone
and acidic condensate) 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.
40
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 Co.’ 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
1. Install provided components per Figure
25 for PHNTM399C or Figure 26 for the
PHNTM500C. Rear tapping is return/inlet.
Front tapping (middle on PHNTM399C) is
supply/outlet. Piping and trim components are
located in miscellaneous parts carton shipped
with the boiler.
a. Safety Relief Valve – Install on tee off 3/4 in.
NPT tapping on PHNTM399C or on tee off
supply tapping on the PHNTM500C. Use
provided 10 in. long nipple to locate valve above
heat exchanger top.
b. Drain Valve – Install on tee off 3/4” NPT
tapping on PHNTM399C or on tee off supply
tapping on PHNTM500C.
c. Temperature and Pressure Gauge – Install on
supply piping.
d. Flow Switch – Install on supply piping. Use
provided tee with 1 in. NPT outlet. Use correct
paddle per Table 23. Refer to Section VIII
“Electrical” for ow switch wiring.
e. Install drain valve into tee bottom outlet.
Figure 25: Factory Supplied Piping and Trim Installation - PHNTM399C
41
VI. Water Piping and Trim (continued)
Table 23: Flow Switch Paddle Application
BoilerFlow Switch
Paddle Marking
PHNTM399C1
PHNTM500CE
B. Piping System To Be Employed.
Phantom X boilers are designed to operate in a closed
loop pressurized system. Minimum pressure in the
boiler must be 14.5 psi (100 kPa). Proper operation
of the Phantom X boiler requires that the water ow
through the boiler remain within the limits shown in
Table 24 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 Phantom X
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 isolated near-boiler
loop is maintained by installer supplied
boiler circulator. See Tables 25 and 26 for
recommended circulators.
b. The ow rate through the isolated near-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.
Table 24: Flow Range Requirement Through Boiler
i. Space heating only - refer to Tables 25 and
26 and Figure 28 “Near Boiler Piping Heating Only” as applicable.
ii. Space heating plus indirect water heater(s)
– refer to Tables 25 and 26 and Figure 29
“Near Boiler Piping - Heating Plus Indirect
Water Heater” as applicable.
iii. If piping indirect water heater off boiler (see
Figure 30), be sure that indirect water heater
and domestic hot water circulator are sized
to maintain ow through boiler within limits
shown in Table 24.
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 X 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 24.
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
Notes: Required Flow = Output*1000/(500*ΔT), where ow rate is in GPM, output is in MBH, and ΔT is in °F
Outputs for specic boiler models are provided in Table 3. See also Tables 25 and 26 for near boiler piping sizing. Using boiler
antifreeze will result in increased uid density and may require larger circulators.
Connection
(in.)
Return
Connection
(in.)
Flow (GPM)
42
DT= 35°FDT = 30°FDT = 25°FΔT = 20°F
Minimum
Required
Boiler
Head
Loss
(ft.)
Required
Flow
(GPM)
Boiler
Head
Loss
(ft.)
Required
Flow
(GPM)
Boiler
Head
Loss
(ft.)
Maximum
Required
Flow (GPM)
Boiler
Head
Loss
(ft.)
Model
Circulator
Model
Circulator
UPS43-100F,
Spd. 3
UP50-60F,
Spd. 3
Piping
Boiler &
Head Loss
Flow
(GPM)
Model
Circulator
Piping
Boiler &
Head Loss
Flow
(GPM)
Model
Circulator
Piping
Boiler &
Head Loss
(ft.)
(ft.)
(ft.)
Piping
Boiler &
Head Loss
Flow
(GPM)
Model
Circulator
Piping
Boiler &
Head Loss
Flow
(GPM)
Model
Circulator
Piping
Boiler &
Head Loss
(ft.)
(ft.)
(ft.)
UPS43-100F,
37.716.9
Spd. 2
48.515.2
Spd. 2
UPS43-100F,
VI. Water Piping and Trim (continued)
Table 25: Recommended Taco Circulators for 50 ft. Equivalent ft. Near Boiler Piping [Approximately 20 ft.
DT=35°FDT=30°FDT=25°FDT=20°F
Straight Pipe, (4) 90° Elbows, and (2) Full Port Ball Valves]
Table 26: Recommended Grundfos Circulators for 50 Equivalent ft. Near Boiler Piping [Approximately 20 ft.
Straight Pipe, (4) 90° Elbows, and (2) Full Port Ball Valves]
(ft.)
Piping
Boiler &
Head Loss
Flow
(GPM)
(in.)
Boiler
Pipe Size
(in.)
& Return
Connection
Boiler Model
43
VI. Water Piping and Trim (continued)
Figure 26: Factory Supplied Piping and Trim Installation - PHNTM500C
C. Standard Installation Requirements.
Observe the following guidelines when making the
actual installation of the boiler piping:
1. Safety Relief Valve (Required) – The safety
relief valve is packaged loose with boiler and must
be installed in the location shown in Figure 25 or
26 “Factory Supplied Piping and Trim Installation”.
The safety relief valve must be installed with spindle
in vertical position. Installation of the safety relief
valve must comply with ASME Boiler and Pressure
Vessel Code, Section IV. The standard factory
shipped safety relief valve is set at 50 psi (340 kPa)
on PHNTM399C and PHNTM500C. If the safety
relief valve is to be replaced, the replacement valve
must have a relief capacity equal or exceeding the
minimum relief valve capacity shown on the heat
exchanger ASME plate. Also, when replacing
the safety relief valve, verify the temperature and
pressure gage meets ASME requirements for the
replacement safety relief valve. Pipe the safety
relief valve discharge to a location where hot water
or steam will not create hazard or property damage
if the valve opens.
The end of the discharge pipe must terminate in an
unthreaded pipe. If the safety relief valve is not
piped to a drain, it must terminate at least 6 in. (150
mm) above the oor. Do not run safety 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.
CAUTION
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. Flow Switch (Required) – A ow switch is
required in lieu of manual reset low water cutoff
(LWCO) for forced circulation coil-type water
boilers to prevent overheating and heat exchanger
failure in accordance with requirements of ASME
Boiler and Pressure Vessel Code, Section IV, and
ANSI/ASME CSD-1 – latest edition, “Controls and
Safety Devices for Automatically Fired Boilers”.
44
VI. Water Piping and Trim (continued)
Figure 27: Boiler Head Loss
The ow switch is factory provided. Follow Section
VI, Paragraph A and Section VIII ‘Electrical’ of
these instructions to install and wire the ow switch.
3. Circulator (Required) – Usually at least two
circulators will be required to properly install an
Phantom X boiler. See Paragraph B above for
information on sizing the circulators.
4. 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.
5. 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
volume taken after initial ll and eliminate any
water leakage as early as possible.
6. 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.
7. Manual Reset High Limit - Phantom X
boilers have factory provided UL353 listed boiler
control and UL1434 listed manual reset high limit.
An optional manual reset external high limit is
available from Crown Boiler Co. to meet local code
requirements.
8. Y-strainer (Recommended) – A Y-strainer
or equivalent strainer removes heating system
debris from hydronic systems and protects boiler
heat exchanger from fouling. Install the strainer
downstream of full port isolation valve at the inlet
side of the circulator for easy service.
9. 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.
10. 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.
11. Drain Valve (Required) – Drain valve is
packaged loose with boiler and must be installed in
the location shown in Figure 25, 26 or 27 “Factory
Supplied Piping and Trim Installation”.
12. An optional LWCO with manual reset is
available from Crown Boiler Co. to meet local code
requirements.
45
VI. Water Piping and Trim (continued)
Table 27: Fitting and Valve Equivalent Length
Table 27: Fitting and Valve Equivalent Length
(cont’d)
Copper Fitting and Sweat Valve Equivalent Length (Ft)
NOTE: Table 27 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
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
NOTICE
The Phantom X 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 Fe2O3) is produced during oxygenation. To minimize any oxygen presence 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 14.50 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 Fe3O4) forms as the result of continuous electrolytic corrosion in any
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.
46
VI. Water Piping and Trim (continued)
Figure 28: Near Boiler Piping - Heating Only
47
NOTICE
For single boiler servicing indirect water heater
(IWH), install DHW heat source sensor in boiler
supply connection to IWH. Header Sensor
cannot be used to control modulation for DHW
demand on a single boiler installation.
VI. Water Piping and Trim (continued)
48
DHW Heat Source Sensor
(When Used See Page 101)
Figure 29: Near Boiler Piping - Heating Plus Indirect Water Heater
VI. Water Piping and Trim (continued)
D. Special Situation Piping 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 X 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 Figures 30 and
31. 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.
Table 28: Multiple Boiler Water Manifold Sizing
Number of Units
Boiler Model
PHNTM399C 2½”3”3”4”5”5”5”
PHNTM500C3”4”4”5”5”6”6”
2345678
Recommended Minimum Common
Water Manifold Size (NPT)
Figure 30: Isolation of the Boiler From Oxygenated Water with A Plate Heat Exchanger
(IWH Piped as Part of Boiler Piping)
49
VI. Water Piping and Trim (continued)
Figure 31: Isolation of the Boiler From Oxygenated Water with A Plate Heat Exchanger
E. Multiple Boiler Water Piping
1. See Figure 34 for example multiple boiler
piping.
2. Install one header sensor in system piping
downstream of the boiler supply connection. See
Figure 34 for header sensor location and Figures 32
and 33 for installation detail. Wire header sensor
to Sequencer Master boiler. See also Section VIII.
Electrical and Section X. Operation.
(IWH Piped Off System Header)
3. For installations where indirect domestic hot
water heater is combined with space heating,
the indirect water heater (IWH) must be piped
as a separate heating zone off the system header.
The circulator must be sized based on the IWH ow
requirement and the pressure drop through the IWH
zone. Refer to Indirect Water Heater literature for
specic model coil ow and pressure drop. Refer to
Figure 34.
Figure 32: Recommended Direct Immersion Header
Sensor or DHW Heat Source Sensor Installation Detail
50
Figure 33: Alternate “Immersion” Type Header Sensor
or DHW Heat Source Sensor Installation Detail
VI. Water Piping and Trim (continued)
Figure 34: 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.
51
NOTICE
Figure 34, continued: Multiple Boiler Water Piping w/Domestic Hot Water Heater (Page 2 of 2)
VI. Water Piping and Trim (continued)
52
Installing a low water cutoff in the system piping
of multiple boilers is strongly recommended and
may be required by local codes.
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. Lengthofpipingandnumberofttings.
Refer to Tables 29 (natural gas) or 30 (LP gas) for
maximum capacity of Schedule 40 pipe. Table 31
lists equivalent pipe length for standard ttings.
4. Specicgravityofgas. Gas piping systems for
gas with a specic gravity of 0.60 can be sized
directly from Table 29 and gas with a specic
gravity of 1.5 can be sized from Table 30, unless
authority having jurisdiction species a gravity
factor be applied. For other specic gravity, apply
gravity factor from Table 32. If exact specic
gravity is not shown choose next higher value.
Table 29: Maximum Capacity of Schedule 40 Black Pipe in CFH* (Natural Gas) For Gas Pressures
of 1/2 psi (3.4 kPa) or Less
Inlet Pressure 14.0 in wc (3.4 kPa)or less; 0.3 in wc (0.07 kPa) Pressure Drop
Nominal Pipe
Size, In.
½0.622131907262555046424038
¾0.82427318815112911410495898379
11.049514353284243215195179167157148
1¼1.3801056726583499442400368343322304
1½1.61015821087873747662600552514482455
22.0673046209416811439127511561063989928877
2½2.4694856333726802294203318421695157614791397
33.0688584590047384055359432562996278726152470
Inside
Diameter, In.
Length of Pipe, Ft.
102030405060708090100
Inlet Pressure 14.0 in wc (3.4 kPa) or less; 0.5 in wc (0.12 kPa) Pressure Drop
Nominal Pipe
Size, In.
½0.6221721189581726560565250
¾0.824360247199170151137126117110104
11.049678466374320284257237220207195
1¼1.3801392957768657583528486452424400
1½1.610208514331151985873791728677635600
22.0674016276022171897168115231402130412231156
2½2.4696401440035333024268024282234207819501842
33.06811316777862465345473842933949367434473256
* 1 CFH of Natural Gas is approximately equal to 1 MBH; contact your gas supplier for the actual heating value of your
gas.
Inside
Diameter, In.
Length of Pipe, Ft.
102030405060708090100
53
VII. Gas Piping (continued)
For materials or conditions other than those listed
above, refer to National Fuel Gas Code, ANSI Z223.1/
B. Connect boiler gas valve to gas supply
system.
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.
Table 30: Maximum Capacity of Schedule 40 Black Pipe in CFH* (LP Gas) For Gas Pressures
of 1/2 psi (3.4 kPa) or Less
Inlet Pressure 11.0 in wc (2.7 kPa); 0.3 in wc (0.07 kPa) Pressure Drop
Nominal Pipe
Size, In.
½0.62288604841373331292725
¾0.82418412610187777064605653
11.049346238191163145131121112105100
1¼1.380710488392336297269248231216204
1½1.6101064732588503446404371346324306
22.067205014091131968858778715666624590
2½2.46932672246180315431368123911401061995940
33.0685776397031882729241821912016187517601662
Inside
Diameter, In.
Length of Pipe, Ft.
102030405060708090100
Inlet Pressure 11.0 in wc (2.7 kPa); 0.5 in wc (0.12 kPa) Pressure Drop
Nominal Pipe
Size, In.
½0.622116806455484440383533
¾0.8242421661341141019285797470
11.049456314252215191173159148139131
1¼1.380937644517442392355327304285269
1½1.6101403964775663588532490456427404
22.067270318581492127711311025943877823778
2½2.4694308296123772035180316341503139913121239
33.0687615523442033597318828892658247223202191
Inside
Diameter, In.
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 31: Equivalent Lengths of Standard Pipe Fittings & Valves (ft)
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
GateGlobeAngle
54
Swing
Check
45°
Elbow
90°
Elbow
180 Close
Return Bend
90 Tee Flow
Through
Run
90 Tee, Flow
Through
Branch
VII. Gas Piping (continued)
Table 32: 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 X boilers have factory supplied
miscellaneous parts cartons, which include gaspiping components to connect boiler gas valve(s) to
gas supply system. Install these components prior
to connecting boiler to gas supply system piping as
follows:
Figure 35: Recommended Gas Piping
4. All above ground gas piping
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 and/or Canadian
Electrical Code Part 1, CSA C22.1, Electrical Code.
Table 33: Min./Max. Inlet Gas Pressure Ratings
Boiler Model
PHNTM399C
PHNTM500C
Natural/LP
Gas Max,
in. wc (kPa)
14.0
(3.49)
Natural Gas
Min,
in. wc (kPa)
4.0
(1.00)
LP Gas
Min,
in. wc (kPa)
8.0
(1.99)
Boiler ModelMiscellaneous
Parts Carton
PHNTM399C106315-01
PHNTM500C106316-01
Models PHNTM399C and PHNTM500C
a. Locate and remove the ¾ in. NPT x 6 in. long
black nipple and ¾ in. NPT external gas shutoff
valve (required).
b. Insert nipple though grommet in left side panel.
Apply pipe dope and thread nipple into gas valve
(PHNTM399C) or gas inlet tee (PHNTM500C).
c. Mount the ¾ in. NPT external gas shutoff valve
onto the nipple threaded 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 35 “ Recommended Gas Piping ”.
55
VII. Gas Piping (continued)
C. Pressure test. See Table 33 for Phantom X 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 (3.4 kPa), boiler and its individual
shutoff valve must be disconnected from gas supply
piping. For testing at ½ psig (3.4 kPa) 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.
DANGER
Explosion Hazard. Do not use matches, candles,
open ames or other ignition source to check for
leaks.
D. Phantom X Model PHNTM500C (if equipped
with optional low and high gas pressure switches)
1. Use a lock-up type gas pressure regulator.
Some examples of lock-up regulators are listed
below:
• Sensus Model 143-80
• Pietro Fiorentini Governor, Standard Model
• Dungs FRS Series
NOTICE
Use a lock-up type gas pressure regulator
when low and high gas pressure switches are
installed. Older or non-lock-up type regulators
may result in nuisance lockouts on gas pressure
droops or spikes.
2. Verify low and high gas pressure switch
settings are within the range shown in Table 33.
The switches are preset for natural gas. For LP gas,
the low gas pressure switch setting must be adjusted.
3. The low gas pressure switch must be reset after
the boiler is piped to the gas supply and before it is
red.
4. For the low and high gas pressure switches
proper operation, the boiler inlet gas pressure must
be within the range shown in Table 33.
5. The gas pressure can be measured at the gas
valve inlet pressure port. Refer to Figure 36 “Gas
Inlet Pressure Tap and Pressure Switch Location “.
6. If either pressure switch is tripped, it must be
manually reset before the boiler can be restarted.
Figure 36: Gas Inlet Pressure Tap and Pressure Switch Location
56
PHNTM500
VII. Gas Piping (continued)
E. Gas Piping for Multiple Boiler Installation
1. Individual module (boiler) gas pipe sizing
specicdetails- see Paragraph A.
2. Individual module (boiler) recommended gas
piping detail - see Figure 35.
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.
57
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.
NOTICE
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. Provide over
current protection not greater than 15A.
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.
C. Power Requirements
Nominal boiler current draw is provided in Table
34. 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.
D. Boiler wiring. Refer to Figures 40 and 41.
Table 34: Boiler Current Draw
Model Number
PHNTM399C< 7
PHNTM500C< 6
1.Connecttoeldwiringinside the junction box,
located on the upper left side of the boiler as shown
in Figure 37. Inside the junction box are two printed
circuit boards (PCB’s), 120 VAC Connections on the
left and Low Voltage Connections on the right.
2. 120VAC connections (line voltage) are located
on left PCB and are shown in Figure 38. Do not
exceed 5.6A total pump current draw (system +
DHW + boiler pumps). One 6.3A slow-blow pump
fuse and spare are provided.
Nominal Current
(amps)
58
VIII. Electrical (continued)
Figure 37: PCB Locations for Field Wiring
Figure 38: 120 VAC Field Wiring
59
VIII. Electrical (continued)
3. 24VAC low voltage connections are located on
left side of right PCB and are shown in Figure 39.
One 24V fuse and spare are provided. PHNTM399C
and PHNTM500C use 1.6A slow-blow fuse.
4. 5VDC low voltage connections are located on
right side of right PCB and are shown in Figure 38.
5. If the outdoor sensor is connected, 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.
E. Flow Switch Wiring
Phantom X boilers require a ow switch to prevent boiler
overheating. See Section VI, Water Piping and Trim, and
ow switch instruction sheet for piping details. The ow
switch and ow switch wire harness are factory provided.
1.Wireowswitchharnesstoboiler. Connect
Molex on harness to boiler low voltage connector
P11, labeled “Flow Switch”.
2.Wireowswitchharnesstoowswitch.
Connect fork terminals on harness to ow switch
NO (normally open) and COM (common) terminal
screws.
WARNING
Scald Hazard. The DHW sensor connection on this boiler is intended for use in modulating the boiler supply
temperature at the indirect water heater. It is not intended for direct control of DHW temperature. Attempting
to use this sensor for direct control of DHW temperature could result in injury or death due to scalding.
NOTICE
Disable boiler internal sequencer when connecting to an energy managment system.
SIZE399-525: 1.6ASLOW BLOWSIZE 600-825: 2.0A FAST ACTING
SIZE 399-500: 1.6A SLOW BLOW
OPTIONAL AUTO
RESET EXTERNAL
LIMIT(S)
SPACE HEATING
THERMOSTAT
OPTIONAL
DOMESTIC HOT WATER
THERMOSTAT (IF USED)
DAMPER PROVING
SWITCH (IF USING
OR
ROOM AIR)
OPTIONAL MANUAL RESET
EXTERNAL LIMIT(S)
ALARM CONTACTS
OPTIONAL ENVIRACOM
THERMOSTAT OR
ZONE PANEL
5mm X 20mm FUSE
(+)
(-)
OR
OR
OPTIONAL
ENERGY
MANAGEMENT
SYSTEM
OPTIONAL
OUTDOOR
SENSOR
OPTIONAL
HEADER SENSOR
OPTIONAL
DOMESTIC HOT
DHW HEAT SOURCE
WATER SENSOR
SENSOR*
OR
OPTIONAL
MULTIPLE BOILER
COMMUNICATION
60
FLOW
OPTIONAL
SWITCH
24V LWCO
Figure 39: Low Voltage Field Wiring
* NOT for direct measurement of DHW
temperature. (See page 101)
VIII. Electrical (continued)
Size 399-500: 1.6A Slow Blow
(Size 500 Only)
Figure 40: Ladder Diagram
61
VIII. Electrical (continued)
2
SIZE 500 ONLY:
62
Figure 41: Wiring Connections Diagram
Size 399-500: 1.6A Slow Blow
VIII. Electrical (continued)
Figure 42a: 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
63
POWER
120/60/1
SUPPLY
L2
GND
L1
DISCONNECT
PROTECTION/
OVERCURRENT
ITEMS SUPPLIED BY INSTALLER
TO
BOILERS
ADDITIONAL
120V
GND
L
N
BOILER
CIRCULATOR
SERVICE
HEATING THERMOSTATS
RJ45
CONNECTOR
SWITCH
(OPTIONAL)
THERMOSTATS24 VACPRIORITY
EXPANSION ZONE 1 ZONE 2 ZONE 3 ZONE 4 NET
A B CCWRRRR1WWWCCC 2
MAIN PRIORITY
X X X X
END SWITCH
OFF
MASTER
NORMAL
SLAVE
RESET
PRIORITY ON
1
NOTE:
LED
ZONE 1
ZONE 2
ZONE 3
ZONE 4
POWER
INDICATORS
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
ZONE CONTROL
CROWN PN 3501505
CIRCULATOR PANEL
6 AMP
FUSE
6 AMP
FUSE
4 MIN/24 HR
OFF
OFF
OFF
OFF
OFF
6 AMP
FUSE
30 SEC/2 WK
POST PURGE ON
LOW LIMIT (ZC) ON
PRIMARY PUMP ON
PUMP EXERCISE ON
PRIOR. PROTECT ON
ON
OFF
ZC1
ZC2
ZC3
2
3
ZC4
BT LT
AMPERES (BECAUSE OF THE NUMBER OF BOILERS PROVIDED) USE SEPARATE CIRCUITS AND OVER-CURRENT PROTECTION
SUCH REQUIREMENTS, FOLLOW THE NATIONAL ELECTRIC CODE, NFPA 70, AND/OR CSA C22.1 ELECTRCAL CODE. DO NOT
PROVIDE OVER-CURRENT PROTECTION GREATER THAN 15 AMPERES. IF IT BECOMES NECESSARY TO PROVIDE GREATER
FOR ADDITIONAL BOILER.
1. INSTALL OVER-CURRENT PROTECTION IN ACCORDANCE WITH AUTHORITY HAVING JURISDICTION OR, IN THE ABSENCE OF
H
H
NN
HHHH
NNNN
PRIMARY ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 4
ZC ZRN H
TERMINALS A, B, AND C LABELED 'BOILER-TO-BOILER' MAY BE USED TO CONNECT AN ENERGY MANAGEMENT SYSTEM
'BOILER-TO-BOILER'.
ONLY IF INTERNAL SEQUENCER IS DISABLED.
USING SCREW TERMINALS A, B, AND C LABELED 'EMS (DELTA ONLY)'.
4. BOILERS WITH PANASONIC DISPLAY: SCREW TERMINALS A, B, AND C LABELED 'EMS (DELTA ONLY)' ARE NOT USED. SCREW
2. BOILER-TO-BOILER WIRING CAN BE DONE WITH RJ45 PLUGS (SHOWN) OR USING SCREW TERMINALS A, B, AND C LABELED
3. BOILERS WITH DELTA DISPLAY: ENERGY MANAGEMENT SYSTEM WIRING CAN BE DONE WITH RJ45 PLUGS (SHOWN) OR
DHW
BOILER
CIRCULATOR
CIRCULATOR
INPUT
120 VAC
CLOSED
NORMALLY
PRIORITY
120 VOLT CIRCULATORS
REMOVE JUMPER
BOILER 2
IN SEQUENCE
(IF REQUIRED)
TO NEXT BOILER
REMOVE JUMPER(S) TO CONNECT
EXTERNAL LIMIT(S).
BOILER 1 (WITH SEQUENCER MASTER ENABLED)
NOTES 3 AND 4)
SYSTEM (IF USED, SEE
TO ENERGY MANAGEMENT
System Header Wiring Schematic for Heating Zone Circulators
Figure 42b: DHW Priority/Circulators (with Crown PN 3501505 Zone Panel) Piped Off
VIII. Electrical (continued)
64
DHW
AQUASTAT
REMOVE JUMPER(S) TO CONNECT
EXTERNAL LIMIT(S).
VIII. Electrical (continued)
Heating (with Central Heating Zone Valves) Plus Alternately Piped Indirect Water Heater
Figure 43: Modied Wiring For DHW Priority When Using Low Flow Circulator Piped Off System Header -
65
VIII. Electrical (continued)
66
Figure 44: Multiple Boiler Wiring Diagram
Internal Multiple Boiler Control Sequencer
(Two Boilers Shown, Typical Connections for up to Eight Boilers)
VIII. Electrical (continued)
Sequence of Operation
Tekmar 265 Based Control System (or equal)
Figure 45: Multiple Boiler Wiring Diagram w/Tekmar 265 Control
The Tekmar 265 Control (or equal) can control up to three (3) boilers and an Indirect Water Heater. When a call for heat is received by the Tekmar 265 Control, the control
will re either one or more boilers in either parallel or sequential ring mode to establish a required reset water temperature in the system supply main based on outdoor
temperature. The boilers will modulate based on an Analog communication signal established between the Tekmar 265 Control and each boiler’s control. The boiler(s) and
system supply water temperature will be reset together to maintain the input that is needed to the system. When a call for Indirect Hot Water is generated to the Tekmar 265,
the control will de-energize the zone pump control (ZC terminal), energize the Indirect pump and modulate the boiler ring to establish a setpoint temperature in the main for the
Indirect Heater using Priority. The Tekmar 265 also controls each boiler’s pump and a post purge of leftover temperature in the boilers will occur at the end of the call for Indirect
Hot Water.
67
Sequence of Operation
Tekmar 264 Based Control System (or equal)
Figure 46: Multiple Boiler Wiring Diagram w/Tekmar 264 Control
VIII. Electrical (continued)
68
The Tekmar 264 Control (or equal) can control up to four (4) boilers and an Indirect Water Heater by utilizing stage ring. When a call for heat is received by the Tekmar 264
Control, the control will re either one or more boilers in sequential ring mode to establish a required reset water temperature in the system supply main based on outdoor
temperature. The boilers will modulate on their own based on each boiler’s control and will target a setpoint temperature to supply enough input to the system main to satisfy
the desired reset water temperature in the main established by the Tekmar 264 Control. When a call for Indirect Hot Water is generated to the Tekmar 264, the control will de-
energize the zone pump control (ZC terminal), energize the Indirect pump and sequentially re the boilers to establish a setpoint temperature in the main for the Indirect Heater
using Priority. The Tekmar 264 Control will disable the stage ring and post purge the Indirect Pump to reduce the temperature in the Supply Main near the end of the Indirect
Mode to a point where it will need to be when it changes back to Space Heating Mode. The Tekmar 264 Control also has the ability to rotate the lead-lag ring of the boilers to
establish equal operating time for each boiler stage.
VIII. Electrical (continued)
F. Multiple Boiler Wiring
1. 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.
2. Required Equipment and Setup
a. Header Sensor (P/N 101935-01 or 103104-01)
A header sensor must be installed and wired to
the Sequencer Master boiler. The header sensor
is installed on the common system piping and
provides blended temperature information to
the Sequence Master. Refer to Figure 34 for
installation location and Figure 32 or 33 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 Modbus Boiler-to-Boiler terminals
A, B, and C between each boiler. Refer to
Figures 40, 41 and 44 for wiring location.
G. External Multiple Boiler Control System
As an alternate to the control internal sequencer, the control
also accepts an input from an external sequencer. Follow
multiple boiler control system manufacturer (Honeywell,
Tekmar, etc.) instructions to properly apply a multiple
boiler control system. The Tekmar Model 264 and Model
265 based control wiring diagrams (Figures 45 and 46) are
provided as examples of typical multiple boiler control
systems.
69
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.
B. Conrmallelectrical,waterandgas
supplies are turned off at the source
vent is clear of obstructions.
C. Conrmthatallmanualshut-offgasvalves
between the boiler and gas source are closed.
Refer to installation instructions contained
and that
E. Conrmthattheboilerandsystemhaveno
water leaks.
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.
F. Check all gas piping for leaks and purge piping
sections that are lled with air. Refer to National
Fuel Gas Code, ANSI Z223.1/NFPA 54 or, in Canada,
Natural Gas and Propane Installation Code, CAN/CSA
B149.1.
D. If not already done, ushthesystem 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.
Pressurize the system to at least 14.5 psi (100 kPa).
Purge air from the system. A manual air vent is located
on the right side of the heat exchanger inside the
cabinet.
WARNING
Burn Hazard. The maximum operating pressure
of this boiler is 30 psig (210 kPa), 50 psig
(340 kPa), 60 psig (410 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.
DANGER
Explosion Hazard. Do not use matches, candles,
open ames or other ignition source to check for
leaks.
Make sure that the area around the boiler is clear
and free from combustible materials, gasoline
and other ammable vapors and liquids.
G.Conrmventsystemiscomplete and free of
obstructions before attempting to re boiler.
H. Inspect all wiring for loose, uninsulated, or
miswired connections.
I. If boiler is to be converted to LP gas
(propane), convert as described in Part T of this
section of the manual. Only models PHNTM399C and
PHNTM500C can be converted to LP gas.
J. If boiler is operating at elevations above
2000 ft, see Appendix A for setup instructions.
K. Start the boiler using operating instructions
in Figure 47. After the boiler is powered up with a call
for heat, the boiler should go through the sequence of
operation shown in Table 44.
70
IX. System Start-up (continued)
Figure 47: Operating Instructions
71
IX. System Start-up (continued)
L. Upon initial start-up, the gas train will
belledwithair. Even if the gas line has been
completely purged of air, it may take several tries for
ignition before a ame is 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.
M. Check Burner Flame
Inspect the ame visible through the window. On high
re the ame should be stable and mostly blue (Figure
48). No yellow tipping should be present; however,
intermittent ecks of yellow and orange in the ame are
normal.
N. 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.
O. Perform Combustion Test
WARNING
Asphyxiation Hazard. Each Phantom X 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.
WARNING
Any gas valve adjustments (throttle and/
or offset) specied herein and subsequent
combustion data (%O2, %CO2, CO air free ppm)
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. Use a combustion analyzer to sample boiler
ue gas and measure O2 (or CO2) and CO air
free. Boilers are equipped with a screw cap in the
vent connector. Be sure to replace this cap when
combustion testing complete.
2. Verify O2 (or CO2) and CO air free are
within limits specied in Table 35 for natural gas
or Table 36 for LP gas (propane). Note: Tables 35
and 36 are for sea level only. For altitudes above
2000 ft, see Appendix A.
a. Lock boiler in high re and allow fan speed and
combustion analyzer reading to stabilize before
taking combustion readings. To lock boiler in
high re, from the home screen, press “Adjust”,
“Adjust”, “Login”, “000”. Enter the password
“086” and press return arrow to close the key
pad. Press “Save”, “Adjust”, “High”.
Table 35: Natural Gas Typical Combustion
Readings (Sea level Only)
Make sure that all adjustments at high re are
made with the throttle, not offset screw (see
Figure 49). 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
unnecessary could result in damage to the gas
valve and may cause property damage, personal
injury or loss of life.
b. If high re O
increase O2 (decrease CO2) by turning the throttle
screw 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 to both gas
valves equally and simultaneously. Refer to
Figure 49 for location of throttle screw. Verify
CO air free is less than 200 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 to both gas valves equally and
simultaneously. Refer to Figure 49 for location
of throttle screw. Verify CO air free is less than
200 ppm.
d. Lock boiler in low re and allow fan speed and
combustion analyzer reading to stabilize before
taking combustion readings. Press “Low” to
lock boiler in low re.
is too low (CO2 is too high),
2
e. If low re O2 is too low (CO2 is too high),
increase O2 (decrease CO2) by turning offset
screw counterclockwise 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 49 for location
of offset screw. Verify CO air free is less than
200 ppm.
f. If low re O
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 49 for location
of offset screw. Verify CO air free is less than
200 ppm.
Figure 49: Gas Valve Detail
is too high (CO2 is too low),
2
3. Remove analyzer probe and replace cap on
boiler vent connector.
4. Return boiler to Automatic Mode. Press
“Auto”.
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 35 or
36.
WARNING
P. 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 40. The boiler must shut
down and must not start with the ame sensor
disconnected.
73
IX. System Start-up (continued)
2. Testtheowswitch by disabling the primary
loop circulator. The boiler must not start if ow is
not present.
3. Test any other external limits or other controls
in accordance with the manufacturer’s instructions.
Q. 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.
R. 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) of this manual
for information on how to adjust supply setpoint.
S. Adjust Thermostats
Adjust the heating and indirect water heater thermostats
to their nal set points.
T. Field Conversion From Natural Gas to LP
Gas (Propane)
Phantom X models PHNTM399C and PHNTM500C
are factory shipped as natural gas builds and can be
eld converted to LP gas. Follow steps below for eld
conversion from natural gas to LP Gas.
1. Conversion of Phantom X models PHNTM399C
and PHNTM500C from one fuel to another is
accomplished using the throttle screw on the gas
valve. Figure 49 “Gas Valve Detail” shows the
location of the throttle screw on the valve. Locate
the throttle screw on the boiler being converted.
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.
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 37.
4. Start the boiler using operating instructions
in Figure 47. After the boiler is powered up with
a call for heat, the boiler should go through the
sequence of operation shown in Table 44. Even if
the gas line has been completely purged of air, it
may take several tries for ignition before a ame
is established. If more than 2 tries for ignition are
needed, it will be necessary to press the reset button
to restart the boiler. If boiler does not light, turn
the throttle screw 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.
Table 37: Approximate Clockwise Throttle
Screw Turns for LP Gas (Propane)
Conversion
Boiler Model
PHNTM399C2¾
PHNTM500C3
Approximate
Throttle Screw Turns
74
IX. System Start-up (continued)
WARNING
Asphyxiation Hazard. The throttle adjustments
shown in Table 37 are approximate. The
nal throttle setting must be found using a
combustion analyzer. Leaving the boiler in
operation with a CO air free level in excess of
200 ppm could result in injury or death from
carbon monoxide poisoning.
5. After the burner lights, complete all steps outlined
in Paragraph O “Perform Combustion Test” before
proceeding.
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 air free) 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.
6. Verify that the gas inlet pressure is between the
upper and lower limits shown in Table 33 with all
gas appliances (including the converted boiler) both
on and off.
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.
U. Correcting Throttle Screw Mis-Adjustment
(if required)
Phantom X 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 38 for natural gas or Table 39 for LP gas.
3. Follow instructions in Paragraph O “Perform
Combustion Test” to verify O2 (or CO2) is within the
range specied in Table 35 for natural gas or Table
36 for LP gas at both high re and low re.
WARNING
The throttle adjustment values shown in Table 38
and Table 39 are approximate. The nal throttle
setting must be found using a combustion
analyzer.
Table 38: Approximate Counter-Clockwise
Throttle Screw Turns from Fully Closed
Position, Natural Gas
Boiler
Model
PHNTM399C5¾
PHNTM500C6½
Table 39: Approximate Counter-Clockwise
Throttle Screw Turns from Fully
Closed Position, LP Gas (Propane)
Boiler
Model
PHNTM399C3
PHNTM500C3½
Approximate
Throttle Screw Turns
Approximate
Throttle Screw Turns
75
IX. System Start-up (continued)
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.
At 0% excess air the CO2 readings will be either 11.9% CO2 for natural gas or 13.8% CO2 for LP gas (O2 will
be 0%) and CO air free level will be extremely high (well over 1000 PPM).
If the burner operates with air deciency, the following phenomena may be observed:
% CO2 will actually drop (% O2 will increase) as the throttle is turned counter-clockwise
% CO2 will actually increase (% O2 will drop) as the throttle is turned clockwise
If the boiler appears to operate with air deciency, shut down the boiler and follow instructions in Paragraph
U “Correcting Throttle Screws Mis-Adjustment. Then, use a combustion analyzer to verify and adjust O2 (or
CO2) and CO air free to values shown in Table 35 for natural gas or Table 36 for LP gas.
V. Controls Start-up Check List
Check eld wiring and control parameters per below Table 40 and Table 41. The control is factory programmed with default
parameters. Review parameters and adjust as necessary to conform to specic site requirements. From Home Screen, select
ADJUST to access below listed parameters. Login as needed to make changes. For detailed login instructions, refer to
Section X. Operation, Paragraph F “Changing Adjustable Parameters”.
Table 40: Field Wiring Checklist
StepWiring LocationParameterDescription
120V LineIs line voltage connected with overcurrent protection?
1120V PCB
2
Low Voltage
Connections PCB
Boiler, System, and
DHW Pumps
Enable/Disable
DHW DemandIs an indirect water heater (IWH) providing a heat demand?
Auto Reset and Man
Reset External Limit
Lockout AlarmAre alarm contacts connected?
EnviraCOMAre any EnviraCOM devices used?
Outdoor SensorIs an outdoor sensor used? Refer to Steps 1 & 7 in Table 41.
Header Sensor
DHW Sensor
Remote 4-20mA
Boiler-to-Boiler
EMS
Flow SwitchIs ow switch installed in piping and plugged in?
LWCOIs a 24V LWCO used? Check installation.
Conrm pumps are connected. If using room air for combustion,
conrm combustion air damper is connected.
Is the space heating thermostat connected. Ensure thermostat is
a “dry”, non-powered input.
Are external limits used? If so, ensure jumper is removed and
limits properly connected. Also check that external limits are
closed and any manual reset devices are reset.
Is a header sensor used? A header sensor is required for the
master boiler in a multiple boiler installation. Refer to Step 8 in
Table 41 to activate this input.
For single boiler servicing indirect water heater (IWH), install
DHW Sensor at boiler-side inlet to IWH. Refer to Step 6 in Table
41 to activate this input.
Is a 4-20mA input required for: 1) modulation input from an
energy management system, or 2) Central Heat setpoint input
from external multiple boiler control? If yes, refer to Step 11 in
Table 41.
Are multiple boilers connected? If yes, refer to Steps 8 & 9 in
Table 41 to activate boiler-to-boiler communication.
Is the boiler connected to an energy management system? If yes,
refer to Step 10 in Table 41.
76
IX. System Start-up (continued)
Table 41: Control Parameter Checklist
Step
1
2
3
4
5
6
7
8
9
10
11
Parameter
Location
Adjust >>
System Setup
Adjust >>
Modulation Setup
Adjust >>
Pump Setup
Adjust >>
Contractor Setup
Adjust >>
Central Heat
Adjust >>
Domestic Hot Water
Adjust >>
Outdoor Reset
Central Heat
Adjust >>
Sequencer Master
Adjust >>
Sequencer Slave
Adjust>>
Energy
Management
Adjust>>
Energy
Management
ParameterDescription
Outdoor Sensor SourceSelect appropriate source: Not Installed, Wired or Wireless.
Warm Weather Shutdown
Enable/Disable
Boiler Type
Boiler Circulator
Domestic Circulator
Contractor Name
Contractor Address
Contractor Phone
Setpoint
Setpoint
DHW Modulation SensorIf using DHW Sensor, select DHW Sensor.
Enable/DisableIf not using an outdoor sensor, select Disable.
Sequencer Master
Boiler Address
Demand Source
Modulation SourceIf using an external multiple boiler controller, set to 4-20 mA.
Central Heat Boiler
Setpoint Source
Selecting Enable will restrict boiler start during warm weather, but
only if an outdoor sensor is installed.
WARNING
Conrm correct boiler model is shown. Stop installation and contact
factory if incorrect boiler model is shown.
Ensure pump parameter selections are correct for your application.System Circulator
Enter contact information. In the event of a fault, or the need
to adjust a setting, the display will direct the user to the entered
contact.
Ensure target space heating water temperature (Setpoint) is correct
for your type of radiation.
Ensure target domestic hot water water temperature (Setpoint) is
correct.
If boiler is the master boiler in a multiple boiler installation, select
Enable.
If boiler is a slave boiler in a multiple boiler installation, assign a
unique boiler address.
If boiler is connected to an energy management system, select
Enable. NOTE: Disable boiler internal sequencer when connecting
to an energy management system.
If an Energy Management System is sending a remote setpoint to
the boiler, set to 4-20 mA.
77
X. Operation
A. Overview
1. R7910 Controller
The R7910 Controller (Control) contains features
and capabilities which help improve heating system
operation, and efficiency. 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 PN 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
78
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 easy eld connection. Simple parameter selections
allow 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.
X. Operation B. Supply Water Temperature Regulation (continued)
The peer-peer 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.
11. Modbus Communication Interface
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.
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 42: Order of Priority
Status
Priority
1stSequencer
2ndDomestic
3rdCentral
4thAuxiliary Heat Auxiliary Heat call for heat is on and there is no
5thFrost
6thWarm
7thStandbyThere is no demand detected.
Screen
Display
Control
Hot Water
Heat
Protection
Weather
Shutdown
(WWSD)
Boiler Responding to:
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.
Central Heat call for heat is on and there
is no DHW demand or DHW priority time
has expired.
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.
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 & increasing combustion
efciency and, reducing standby 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.
79
X. Operation C. Boiler Protection Features (continued)
7. Domestic Hot Water (DHW) Setpoint
This is the boiler supply water setpoint upon a DHW call
for heat. Unless an Enviracom thermostat is connected
to the boiler, this set point will always be the xed
“DHW set point” value entered in the boiler control.
If an Enviracom thermostat is connected, this may also
be the thermostat’s “sleep” or “away” DHW set point.
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.
C. Boiler Protection Features
1. Supply Water Temperature High Limit
The boiler is equipped with a UL 353 listed boiler
control and UL 1434 listed high limit sensor.
Response to supply temperature is as follows:
• Flue exceeds 204°F (95.6°C) – manual reset hard
lockout
4. Flow Switch
The ow switch shuts down the boiler when there
is insufcient water ow in the boiler primary loop.
When water ow is restored to a boiler-specic
minimum value (see Table 24), the ow switch
detects ow and automatically restarts the boiler.
The ow switch is required and is factory provided.
5. Return Temperature Higher Than Supply
Temperature (Inversion Limit)
If return water temperature exceeds 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 shuts down with a hard lockout.
Condition is caused by incorrect supply and return
piping connections.
6. Ignition Failure
The control monitors ignition using a burner mounted
ame sensor. Response on ignition failure is as
follows:
• Size 399: retries ve times, then soft lockout for
one hour
• Size 500: retries one time, then manual reset hard
lockout
7. Automatic Reset Limit Devices
If any below listed limit opens, the boiler shuts
down and provides an open limit indication. The
boiler will automatically restart once the limit
closes. An external limit control with its own
manual reset button requires pressing external limit
reset button after limit closes even when connected
to Auto Reset External Limit terminals.
• Sump pressure switch – opens if inadequate air
ow is detected during operation
• Condensate oat switch – opens if condensate
drain is blocked
• 24V LWCO (if used) – opens if low water
condition is detected
• Device(s) connected to Auto Reset External
Limit terminals
X. Operation D. Multiple Boiler Control Sequencer (continued)
8. Manual Reset Limit Devices
If any below listed limit opens, the boiler will restart
only after the limit closes and the boiler control
manual reset button is depressed. During boiler
start sequence, air proving switch must prove open
before blower starts and closed after blower starts.
If air proving switch is not in the required position,
the control waits for a preset time period and then
shuts down with a manual reset hard lockout.
• Thermal link – opens if rear of combustion
chamber overheats; one time use device
• Burner door thermostat – opens if burner door
overheats, manual reset button on thermostat
• High and low gas pressure switches (if used, size
500 only) – open if gas pressure is outside of
preset limits, manual reset button on each switch
• Air proving switch – opens if inadequate air ow
is detected prior to ignition
• Device(s) connected to Man Reset External
Limit terminals
9. 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 43: 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)
Start
Temperatures
Stop
Temperatures
Outside Air > -18°F (-28°C)
Supply Water > 50°F (10°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.
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.
81
X. Operation D. Multiple Boiler Control Sequencer (continued)
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).
82
X. Operation E. Boiler Sequence Of Operation (continued)
Boiler 1
i
E. Boiler Sequence of Operation
1. Normal Operation
Table 44: 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.
83
Supply
132 F
Setpoint
<
Rate
Priority:
Status:
180 F
100%
Domestic Hot Water
Running
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 display
groups:
Information Symbol
“Information” symbol links most
screens to screen content
explanations. 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 problem
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.
Status Screen
84
Figure 50: 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”
symbols provide a link to the cause
of a boiler fault or ring rate limit. The rst boiler status screen
provides an overview of boiler operation including fault status.
Figure 51: Screen Navigation
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 Crown Boiler Co. 3501505 Zone Panel is connected. Zone Panel 1 and 2 shown typical for 1 through 4.
Figure 52: 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
44 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 limited or overridden in any way.
During the start-up and shutdown
sequence it is normal for the rate to
be overridden by the purge, lightoff 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 53: Boiler Status Screen Denitions
85
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.
86
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.
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 Crown Boiler Co.
3501505 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)
87
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,
Domestic 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.
Firing Rate:
Demanded ring rate is
provided.
88
X. Operation (continued)
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 54: Adjust Mode Screens
2. Adjusting Parameters
Editing parameters is accomplished as follows:
89
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
tenths of degree
(-45.6 to 10°C)
Not
Connected
EnabledEnable/Disable
0 min.0-20 min.
DisabledEnable/Disable
70°F
(21.1°C)
Not Connected
(-6.7 to 37.8°C)
button to access the following parameters:
Range /
Choices
Fahrenheit,
Celsius
Not Installed,
Wired
Wireless
-50 to +50°F
Connected,
20 to 100°F
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 and wired to boiler low voltage PCB.
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
reference reading.
Crown Boiler Co. 3501505 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 circulator starts and boiler res when low outside air, supply and return
temperatures are sensed as follows:
Device
Started
Boiler
Pump
BoilerSupply Water < 38°F (3.3°C)Supply Water > 50°F (10°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.
Outside Air < -0°F (-18°C)
or Supply Water < 45°F (7.2°C)
Start
Temperatures
Stop
Temperatures
Outside Air > -4°F (-16°C)
Supply Water > 50°F (10°C)
90
X. Operation F. Changing Adjustable Parameters (continued)
Modulation
Setup
500C‐02
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
Varies by
Model
button to access the following parameters:
Range /
Choices
Boiler Type
Boiler Size Setup
To verify the boiler size selection, a qualied technician should do the following:
1. Check boiler’s rating plate for the model size. For example, if the model number shown
on the rating plate is “PHNTM500C”, the model size is “500”.
See Figure 55
2. Verify the altitude at which the boiler is installed.
3. Set “Boiler Type” to match the model size and altitude as shown in Figure 55.
4. 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 for altitudes above 2000 ft or in a spare part
control to a particular boiler model. See Figure 55.
Parameter and Description
NOTICE
If boiler is being installed at elevation above 2000 ft, refer to Appendix A: Instructions for High Altitude
Installations Above 2000 ft.
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 56: 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 57: Expected Heat Rate Adjustment (with Zone Control Connected)
92
X. Operation F. Changing Adjustable Parameters (continued)
Modulation
Setup
“Press”
Factory
Setting
100%
80%
of CH
Maximum Heat
Rate
100%
40%
15
Minutes
Varies by
Model
Varies by
Model
button to access the following parameters:
Range /
Choices
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
Varies by
Model
399: 3,500 -
4,000 rpm
500 - 800:
non-adjustable
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.
Parameter and Description
93
X. Operation F. Changing Adjustable Parameters (continued)
Pump Setup
“Press”
Factory Setting Range / ChoicesParameter and Description
Any Demand
Any Demand
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: Pump is disabled and not shown on status screen.
Any Demand: Pump Runs during any call for heat.
Central Heat: Pump Runs during central heat and frost protection call for
No Priority: heat. Pump does not start for a DHW call for heat and
continues to run during Domestic Hot Water Priority.
Central Heat: Pump Runs during central heat and frost protection call for
Optional Priority: 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 and combustion air damper (if using room air) output according
to selected function.
Any Demand: Pump Runs /damper opens during any call for heat.
Make sure indirect water heater and DHW circulator are sized to maintain ow through boiler within limits shown in Table 24.
Central Heat: Pump runs during central heat and frost protection call for
Off DHW demand: 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.
Primary
Loop Pipe
IWH
Header Sensor
Demand/
Combustion Air
Damper
Never,
Primary Loop
Piped IWH,
Boiler Piped IWH
Fresh Air Damper
Header SensorDemand/ Pump runs when boiler is ring to satisfy any call for heat.
Combustion Air Damper: Used when header sensor is enabled to prevent unnecessary
operation of boiler pump. Also used when combustion air
damper is wired to Boiler Pump output.
NOTE: Header Sensor must be used when combustion air
damper output is required.
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 24.
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).
94
X. Operation F. Changing Adjustable Parameters (continued)
Example Pump Parameter selections (continued):
Single boiler Primary Piped Indirect Water Heater, Optional DHW 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.
Single boiler with no Indirect Water Heater
Parameter Selections:
System Pump= “any demand”
Boiler Pump = “any demand”
DHW Pump = “never”
Explanation:
This piping arrangement only
services central heat. When there is
any demand both boiler and system
pumps turn on.
95
X. Operation F. Changing Adjustable Parameters (continued)
Example Pump Parameter selections (continued):
Multiple Boilers with Boiler Piped Indirect Water Heater
Sequencer Master
(Boiler 1)
Wiring locations:
Enable/DisableX
DHW DemandX
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
96
X. Operation F. Changing Adjustable Parameters (continued)
Example Pump Parameter selections (continued):
Multiple Boilers, Primary Piped Indirect Water Heater, Optional DHW Priority
Sequencer Master
(Boiler 1)
Wiring locations:
Enable/DisableX
DHW DemandX
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, Primary Piped Indirect Water Heater, System Pump Run for Any Demand
Sequencer Master
(Boiler 1)
Wiring locations:
Enable/DisableX
DHW DemandX
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
97
X. Operation F. Changing Adjustable Parameters (continued)
Contractor
Setup
Manual
Control
“Press”
button to access the following parameters:
i
<
Contractor Name
Press box to input contractor information.
Bill Smith
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For Service Contact:
12 Victory Lane
Plainview, New York
Example Screen
Enter Contractor Information
Bill Smith
8
7
2
3
4
1
B
A
5
C
D
8
6
7
CL
ES
BS
R
C
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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
Bill Smith
516 123-4567
“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.
“Press” “Low” to select
manual ring rate control
and Minimum ring rate %
98
“Press” “High” to select
manual ring rate control
and Central Heat Maximum
ring rate %
NOTE
Selecting “Low” or “High”
locks (manual mode) ring
rate at min or max Rate %.
After combustion testing select
“Auto” to return the boiler to
normal operation.
Press “Auto” to
return ring rate
to Automatic
Mode
X. Operation F. Changing Adjustable Parameters (continued)
Central
Heat
“Press”
Factory
Setting
180°F
(82.2°C)
170°F
(76.7°C)
10°F
(-12.2°C)
5°F
(-15.0°C)
31 to 5
120
seconds
Supply
Sensor
Range / ChoicesParameter and Description
(10°C to 87.8°C)
(10°C to 87.8°C)
(-16.7°C to 3.9°C)
(-16.7°C to 3.9°C)
0 to 1800 seconds
button to access the following parameters:
50°F to 190°F
50°F to 190°F
2°F to 25°F
2°F to 25°F
Supply Sensor,
Header Sensor
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 terminals.
NOTE: When Header Sensor is selected, also set Boiler Pump parameter to Header Sensor
Demand/Combustion Air Damper.
99
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
(-13.7°C)
5°F
(-15.0°C)
31 to 5
DisableDisable, Enable
Zone
Control
Supply
Sensor
Range / ChoicesParameter and Description
60°F to 190°F
(15.6°C to 87.8°C)
80°F to 190°F
(26.7°C to 87.8°C)
2°F to 10°F
(-16.7°C to -12.2°C)
2°F to 25°F
(-16.7°C to -3.9°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 terminals.
NOTE: When Header Sensor is selected, also set Boiler Pump parameter to Header Sensor
Demand/Combustion Air Damper.
100
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