* I N S T A L L A T I O N A N D M A I N T E N A N C E *
* I N S T A L L A T I O N A N D M A I N T E N A N C E *
M A N U A L
M A N U A L
NOTICE
WARNING
If the information in this manual is not followed exactly, a fire or explosion may
result causing property damage, personal injury or death.
Installation and service must be performed by a qualified installer, service agency or the
Revised Date: 12/15/15
gas supplier.
Warranty Registration Card must be filled out by the customer and mailed within thirty (30) days of installation in order to gain warranty coverage.
When receiving the PRESTIGE Excellence unit, any claims for damage or shortage in shipment must be
filed immediately against the transportation company by the consignee.
Leave all documentation received with appliance with owner for future reference.
FOR YOUR SAFETY
•Do not store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance.
•WHAT TO DO IF YOU SMELL GAS
- Do not try to light any appliance
- Do not touch any electrical switch; do not use any phone in your building.
- Immediately call your gas supplier from a neighbor’s phone. Follow the gas
supplier ’s instructions.
- If you cannot reach your gas supplier, call the fire department.
PRESTIGE Excellence Front View .................................................................................74
PRESTIGE Excellence Right Side View.........................................................................75
PRESTIGE Excellence Top View....................................................................................76
Section XIX Notes
General Notes.........................................................................................................79
v
Product & Safety Information
PRODUCT & SAFETY INFORMATION
Definitions
The following terms are used throughout this manual to bring attention to the presence of
potential hazards or important information concerning the product.
DANGER
Indicates the presence of a hazardous
situation which, if ignored, will result in
death, serious injury or substantial
property damage.
WARNING
Indicates a potentially hazardous situation which, if ignored, can result in
death, serious injury or substantial
property damage.
CAUTION
Indicates a potentially hazardous situation which, if ignored, may result in
minor injury or property damage.
NOTICE
Indicates special instructions on installation, operation or maintenance, which
are important to equipment but not
related to personal injury hazards.
BEST PRACTICE
Indicates recommendations made by
ACV-Triangle Tube for the installers
which will help to ensure optimum operation and longevity of the equipment
NOTICE
ACV-Triangle Tube reserves the right to modify the technical specifications and components of its products without prior notice.
1
Product & Safety Information
DANGER
Do not use this appliance if any part has
been under water. Immediately call a
qualified service technician to inspect
the appliance and to replace any part of
the control system which has been
under water.
WARNING
WHAT TO DO IF YOU SMELL GAS
- Do not try to light any appliance
- Do not touch any electrical switch; do
not use any phone in your building.
- Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
- If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
WARNING
Qualified Installer:
Prior to installing this product read all instructions included in this manual and all accompanying manuals/documents with this appliance.
Perform all installation steps required in these
manuals in the proper order given. Failure to
adhere to the guidelines within these manuals
can result in severe personal injury, death or
substantial property damage.
Homeowner:
- This product should be maintained /
serviced and inspected annually by a
qualified service technician.
- This manual is intended for use by a
qualified Installer/Service Technician.
NOTICE
Please reference the unit’s model number
and the serial number from the rating label
when inquiring about service or troubleshooting.
WARNING
Should overheating occur or the gas
supply fails to shut off, turn OFF the
manual gas control valve external to the
appliance.
WARNING
DO NOT add cold make up water when
the appliance is hot. Thermal shock can
potentially cause cracks in the heat
exchanger.
CAUTION
When servicing the appliance:
- Avoid electrical shock by disconnecting the electrical supply prior to
performing maintenance.
WARNING
ACV-Triangle Tube accepts no liability for
any damage, injury or loss of life resulting
from incorrect installation, from alteration of any factory supplied parts or from
the use of parts or fittings not specified by
ACV-Triangle Tube. If there is a conflict
or doubt about the proper installation of
the unit or any factory supplied or
replacement parts please contact ACVTriangle Tube Technical Support.
WARNING
A byproduct of any gas fired appliance
is carbon monoxide. In the absence of
any state or local codes requiring the
installation of carbon monoxide detector and alarms, ACV-Triangle Tube’s
recommendation is to follow the
requirements of the Commonwealth of
Massachusetts, see page 11.
2
1.0Pre-Installation Items
SECTION I - PRE-INSTALLATION
ITEMS
1.1Code Compliance
This product must be installed in accordance to
the following:
- All applicable local, state, national and
provincial codes, ordinances, regulations and laws.
- For installations in Massachusetts, code
requires the boiler to be installed by a
licensed plumber or gas fitter, and if
antifreeze is utilized, the installation of
a reduced pressure backflow preventer
device is required in the boiler’s cold
water fill or make up water supply line.
- For installation in Massachusetts all direct
vented appliances must comply with the
guidelines as outlined on page 11.
- The National Fuel Gas Code NFPA54/
ANSI Z 223.1 - Latest edition.
- National Electric Code ANSI/NFPA 70.
- For installations in Canada -“Installation
Code for Gas Burning Equipment”
CGA/B149.1 or B149.2 Canadian
Electrical Code Part 1 CSA C22.1.
- Standards for Controls and Safety
Devices for Automatically Fired Boilers,
ANSI/ASME CSD-1, when required.
NOTICE
Before locating the PRESTIGE Excellence
check for convenient locations to:
- Heating system piping
- Venting
- Gas supply piping
- Electrical service
Ensure the boiler location allows the combustion air/vent piping to be routed directly through
the building and terminate properly outside with
a minimum amount of length and bends.
Ensure the area chosen for the installation of the
PRESTIGE Solo is free of any combustible
materials, gasoline and other flammable liquids.
WARNING
Failure to remove or maintain the area
free of combustible materials, gasoline
and other flammable liquids or vapors
can result in severe personal injury,
death or substantial property damage.
Ensure the PRESTIGE Excellence and its controls are protected from dripping or spraying
water during normal operation or service.
The PRESTIGE Excellence should be installed
in a location so that any water leaking from the
boiler or piping connections or relief valve will
not cause damage to the area surrounding the
unit or any lower floors in the structure.
The PRESTIGE Solo boiler gas manifold
and gas controls meet the safe lighting and
other performance requirements as specified in ANSI Z21.13 latest edition.
1.2Determining Product Location
NOTICE
The PRESTIGE boiler is certified for
indoor, conditioned space installations
ONLY.
1.3Boiler Replacement
If the PRESTIGE Excellence is replacing an
existing boiler, the following items should be
checked and corrected prior to installation:
- Boiler piping leaks and corrosion.
- Improper location and sizing of the
expansion tank on the boiler heating
loop.
- If applicable, level and quality of
antifreeze within the boiler system.
3
1.0Pre-Installation Items
1.4Recommended Clearances
The PRESTIGE Excelence is approved for
zero clearance to combustibles, excluding
vent and boiler piping.
- Boiler Piping - 1/4 inch from combustible materials.
- Reference the appropriate vent supplement for clearance requirements.
BEST PRACTICE
To provide serviceability to the unit it is
recommended that the following clearances be maintained:
Top boiler jacket - 24 inches [610 mm].
Front - 24 inches [610 mm].
Bottom boiler piping - 24 inches [610 mm].
Rear - 0 inches
Sides - 6 inches [153 mm]
1.5Residential Garage Installations
When installing the PRESTIGE Solo in a residential garage, the following special precautions
per NFPA 54/ANSI Z223.1 must be taken:
- Mount the unit a minimum 18 inches
[458 mm] above the floor level of the
garage. Ensure the burner and ignition
devices / controls are no less than 18
inches [458 mm] above the floor level.
- Locate or protect the unit in a manner so it
cannot be damaged by a moving vehicle.
1.6Boiler Freeze Protection Feature
The ACVMax boiler management system has a
freeze protection feature built in. This feature
monitors the boiler water temperature and
responds as follows when no call for heat is present:
- 46ºF [8ºC] Pump outputs configured to
respond to a CH1 Call are enabled.
WARNING
If the clearances listed above cannot be
maintained or the enclosure in which the
boiler is installed is less than 85 cubic feet,
the space must be ventilated. See page 6
for ventilation requirements.
NOTICE
When maintaining less than recommended serviceability clearances, some
product labeling, including the rating
label, may become hidden and unreadable.
WARNING
When installing the PRESTIGE
Excellence in a confined space, sufficient
air must be provided for proper combustion and venting and to allow, under
normal operating conditions, proper air
flow around the product to maintain
ambient temperatures within safe limits
to comply with the National Fuel Gas
Code NFPA 54 - latest edition.
- 42ºF [6ºC] Pump outputs configured to
respond to a CH1 or CH2 Call are
enabled, Burner operates at low fire.
- 60ºF [15ºC] Freeze protection ends.
Burner & all pumps turn off after completing CH Post Pump Time.
CAUTION
The boiler freeze protection feature is
disabled during a hard lockout, however
the circulators will operate.
CAUTION
The boiler freeze protection feature is
designed to protect the boiler. The boiler
should be installed in a primary/secondary piping arrangement if it is
installed in an unheated space or
exposed to water temperatures of 46ºF or
less. See Section IV for primary/secondary piping examples. See Section X
for antifreeze guides.
4
2.0Combustion Air & Venting
SECTION II - COMBUSTION AIR
AND VENTING
2.1Combustion Air Contamination
WARNING
If the PRESTIGE Excellence combustion air inlet is located in any area likely
to cause or contain contamination, or if
products, which would contaminate the
air cannot be removed, the combustion
air must be repiped and terminated to
another location. Contaminated combustion air will damage the unit and its
burner system, resulting in possible
severe personal injury, death or substantial property damage.
WARNING
Do not operate a PRESTIGE Excellence
if its combustion air inlet is located near
a laundry room or pool facility. These
areas will always contain hazardous contaminants.
Potential contaminating products
- Spray cans containing chloro/fluorocarbons
- Permanent Wave Solutions
- Chlorinated wax
- Chlorine - based swimming pool chemicals / cleaners
- Calcium Chloride used for thawing ice
- 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
Pool and laundry products and common
household and hobby products often
contain fluorine or chlorine compounds.
When these chemicals pass through the
burner and vent system, they can form
strong acids. These acids can create corrosion of the heat exchanger, burner
components and vent system, causing
serious damage and presenting a possible threat of flue gas spillage or water
leakage into the surrounding area.
Please read the information listed below.
If contaminating chemicals are located
near the area of the combustion air inlet,
the installer should pipe the combustion
air inlet to an outside area free of these
chemicals per SECTION V of this
installation manual.
Areas likely to contain these products
- Dry cleaning / laundry areas and establishments
- Beauty salons
- Metal fabrication shops
- Swimming pools and health spas
- Refrigeration Repair shops
- Photo processing plants
- Auto body shops
- Plastic manufacturing plants
- Furniture refinishing areas and establishments
- New building construction
- Remodeling areas
- Garages with workshops
5
2.0Combustion Air Venting
2.2Ventilation and Combustion Air
Requirements - Direct Vent
A Direct Vent appliance utilizes uncontaminated outdoor air (piped directly to the appliance)
for combustion.
For Direct Vent installations, involving only
the PRESTIGE Excellence, in which the minimum service clearances are maintained as listed on page 4, no ventilation openings are
required.
For Direct Vent, zero clearance installations
involving only the PRESTIGE Excellence, the
space / enclosure must provide two openings
for ventilation. The openings must be sized to
provide 1 square inch of free area per 1,000
BTUH of boiler input. The openings shall be
placed 12 inches from the top of the space and
12 inches from the floor of the space.
For installations in which the PRESTIGE
Excellence shares the space with air movers
(exhaust fan, clothes dryers, fireplaces, etc.)
and other combustion equipment (gas or oil)
the space must be provided with adequate air
openings to provide ventilation and combustion air to the equipment. To properly size the
ventilation / combustion air openings, the
installer must comply with the National Fuel
Gas Code NFPA 54, ANSI Z223.1 for installations in the U.S or CSA B149.1 and B149.2 for
installations in Canada.
WARNING
The space must be provided with ventilation / combustion air openings properly
sized for all make-up air requirements
(exhaust fans, clothes dryers, fireplaces,
etc.) and the total input of all appliances
located in the same space as the PRESTIGE Solo, excluding the input of a
Direct Vent PRESTIGE Excellence
which uses combustion air directly from
the outside, thus additional free area for
the openings is not required. Failure to
provide or properly size the openings
could result in severe personal injury,
death or substantial property damage.
2.3Ventilation and Combustion Air
Requirements - Category IV
A Category IV appliance utilizes uncontaminated indoor or outdoor air (surrounding the
appliance) for combustion.
BEST PRACTICE
In order to reduce the potential risks
associated with indoor contaminates
(listed on page 5), flammable vapors and
tight housing construction (little or no
infiltration air), it is recommended to
pipe uncontaminated combustion air
directly from the outdoors to the appliance. This practice also promotes higher
system efficiency by reducing heated
indoor air from being exhausted from
the house and replaced by cold infiltration air into the house.
For installations in which the PRESTIGE
Excellence shares the space with air movers
(exhaust fan, clothes dryers, fireplaces, etc.) and
other combustion equipment (gas or oil) the
space must be provided with adequate air openings to provide ventilation and combustion air to
the equipment. To properly size the ventilation
/ combustion air openings, the installer must
comply with the National Fuel Gas Code NFPA
54, ANSI Z223.1 for installations in the U.S or
CSA B149.1 and B149.2 for installations in
Canada, as referenced in this section of the manual and titled Methods of Accessing
Combustion Air into a Space.
WARNING
The space must be provided with ventilation / combustion air openings properly
sized for all make-up air requirements
(exhaust fans, clothes dryers, fireplaces,
etc.) and the total input of all appliances,
including the PRESTIGE Excellence
when located in the same space. Failure
to provide or properly size the openings
could result in severe personal injury,
death or substantial property damage.
6
2.0Combustion Air Venting
2.4Methods of Accessing Combustion
Air Into A Space - Category IV
2.4.1Indoor Combustion Air
NOTICE
The methods listed in this section for
accessing Indoor Combustion Air
assume that the infiltration rate is adequate and not less than .40 ACH. For
infiltration rates less than .40 ACH, reference the NFPA 54 National Fuel Gas
Code for additional guidance.
Opening Size and Location
Openings used to connect indoor spaces shall
be sized and located in accordance with the
following, see Fig. 1:
- Combining spaces on the same story.
Each opening shall have a minimum
free area of 1 sq. in./1000 Btu/hr of the
total input rating of all gas utilization
equipment in the space, but not less than
100 sq. inches. One opening shall commence within 12 inches of the top, and
one opening shall commence within 12
inches of the bottom of the enclosure.
The minimum dimension of air openings shall be not less than 3 inches.
- Combining spaces in different stories.
The volumes of spaces in different stories shall be considered as communicating spaces where such spaces are connected by one or more openings in
doors or floors having a total minimum
free area of 2 sq. in./1000 Btu/hr of
total input rating of all gas utilization
equipment.
2.4.2Outdoor Combustion Air
BEST PRACTICE
Isolating the combustion appliance room
from the rest of the building and bringing in uncontaminated outside air for
combustion and ventilation is always
preferred.
Opening Size and Location
The minimum dimension of air openings shall
be not less than 3 inches
Openings used to supply combustion and ventilation air shall be sized and located in accordance with the following:
Fig. 1:
All Combustion Air from Adjacent
Indoor Spaces Through Indoor
Combustion Openings
2.4.2.1 One Permanent Opening Method
One permanent opening, commencing within 12
in. of the top of the enclosure, shall be provided
as shown in Fig 2 on page 8. The equipment
shall have clearances of at least 1 inch from the
sides and 6 in. from the front of the appliance.
The opening shall directly communicate with the
outdoors or 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:
- 1sq. in./3000 Btu/hr of the total input
rating of all equipment located in the
enclosures, and
- Not less than the sum of the areas of all
vent connectors in the space.
7
2.0Combustion Air Venting
Fig. 2:
All Combustion Air from Outdoors
Through One Permanent Air
Opening
2.4.2.2 Two Permanent Openings Method
Two permanent openings, one commencing
within 12 in. of the top and one commencing
within 12 in. of the bottom of the enclosure,
shall be provided. The openings shall communicate directly, or by ducts, with the outdoors
or spaces that freely communicate with the outdoors, as follows:
- Where directly communicating with the
outdoors or where communication to the
outdoors is through vertical ducts, each
opening shall have a minimum free area
of 1 sq. in./4000 Btu/hr of total input rating of all equipment in the enclosure.
See Fig.3.
- Where communicating with the outdoors is through horizontal ducts, each
opening shall have a minimum free
area of not less than 1 sq.in./2000
Btu/hr of total input rating of all equipment in the enclosure. See Fig. 4.
Fig. 3:
Fig. 4:
All Combustion Air from Outdoors
Through Ventilated Attic
All Combustion Air from Outdoors
Through Horizontal Ducts
8
2.0Combustion Air Venting
2.4.3Combination of Indoor and
Outdoor Combustion Air
Indoor Openings: Where used, openings connecting the interior spaces shall comply with
the Indoor Combustion Air section on page 7.
Outdoor Opening(s) Location. Outdoor opening(s) shall be located in accordance with the
Outdoor Combustion Air section.
Outdoor Opening(s) Size. Outdoor opening(s) shall
be calculated in accordance with the following:
- The ratio of the interior spaces shall be
the available volume of all communicating spaces divided by the required
volume.
- The outdoor size reduction factor shall
be 1 minus the ratio of interior spaces.
- The minimum size of outdoor opening(s) calculated in accordance with the
above outdoor air section multiplied by
the reduction factor. The minimum
dimension of air openings shall not be
less than 3 in.
DANGER
Do not install the PRESTIGE Excellence
into a common vent with other gas or oil
appliances. This may cause flue gas
spillage or appliance malfunction, resulting in possible severe personal injury,
death or substantial property damage.
uncontaminated outdoor air (piped directly to
the appliance) for combustion.
BEST PRACTICE
In order to reduce the potential risks
associated with indoor contaminates
(listed on page 5), flammable vapors
and tight housing construction (little or
no infiltration air), it is recommended
to pipe uncontaminated combustion air
directly from the outdoors to the appliance. This practice also promotes higher
system efficiency by reducing heated
indoor air from being exhausted from
the house and replaced by cold infiltration air into the house.
NOTICE
Install combustion air and vent pipe as
detailed in the PRESTIGE Excellence
Vent Supplement included in the boiler
installation envelope. Refer to optional
vent kit instructions for additional vent
installation instructions.
DANGER
Verify installed combustion air and vent
piping are sealed gas tight and meet all
provided instructions and applicable
codes, failure to comply will result in
severe personal injury of death.
2.5Combustion Air and Vent Piping
The PRESTIGE Excellence requires a
Category IV venting system, which is designed
for pressurized venting and condensate.
The PRESTIGE Excellence is certified per
ANSI Z21.13 as a Category IV or Direct Vent
(sealed combustion) appliance. A Category IV
appliance utilizes uncontaminated indoor or
outdoor air (surrounding the appliance) for
combustion. A Direct Vent appliance utilizes
9
2.0Combustion Air Venting
2.6Removal of an Existing Boiler
from a Common Vent System
BEST PRACTICE
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 deficiencies
which could cause an unsafe condition.
5. Test for spillage at the draft hood relief
opening after 5 minutes of main burner operation. Use the flame of a match or candle, or
smoke from a cigarette, cigar or pipe.
6. After it has been determined that each
appliance remaining connected to the common venting system properly vents when
tested as outlined above, return doors, windows, exhaust fans, fireplace dampers, and
any other gas-burning appliance to their
previous condition of use.
7. Any improper operation of the common
venting system should be corrected so the
installation conforms with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54
and/or CAN/CGA B149, Installation codes.
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 of the National Fuel
Gas Code ANSI Z223.1/NFPA 54 and/or
CAN/CGA B149, Installation codes.
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 maximum
speed. Do not operate a summer exhaust
fan. Close fireplace dampers.
4. Place in operation the appliance being
inspected. Follow the lighting instructions.
Adjust thermostat so appliance will operate
continuously.
DANGER
Do not install the PRESTIGE Excellence
into a common vent with other gas or oil
appliances. This may cause flue gas
spillage or appliance malfunction, resulting in possible severe personal injury,
death or substantial property damage.
10
2.0Combustion Air Venting
2.7Commonwealth of Massachusetts Installations Only
For direct-vent appliances, mechanical-
vent heating appliances or domestic hot
water equipment, where the bottom of the
vent terminal and the air intake is installed
below four feet above grade the following
requirements must be satisfied:
1. If there is not one already present, on
each floor level where there are bedroom(s), a carbon monoxide detector
and alarm shall be placed in the living
area outside the bedroom(s). The carbon monoxide detector shall comply
with NFPA 720 (2005 Edition).
2. A carbon monoxide detector shall also
be located in the room that houses the
appliance or equipment and shall:
a. Be powered by the same electrical cir-
cuit as the appliance or equipment such
that only one service switch services
both the appliance and the carbon
monoxide detector;
b. Have battery back-up power;
c. Meet ANSI/UL 2034 Standards and
comply with NFPA 720 (2005 Edition);
and
d. Have been approved and listed by the
Nationally Recognized Testing
Laboratory as recognized under 527
CMR.
3. A Product-approved vent terminal must
be used, and if applicable, a Productapproved air intake must be used.
Installation shall be in strict compliance
with the manufacturer’s instructions. A
copy of the installation instructions
shall remain with the appliance or
equipment at the completion of the
installation.
4. A metal or plastic identification plate
shall be mounted at the exterior of the
building, four feet directly above the
location of vent terminal. The plate
shall be of sufficient size to be easily
read from a distance of eight feet away,
and read “Gas Vent Directly Below”.
NOTICE
Installer must provide tag identification
plate and ensure the lettering meets code
requirements.
For direct-vent appliances, mechanical-
vent heating appliances or domestic hot
water equipment, where the bottom of the
vent terminal and the air intake are installed
above four feet above grade the following
requirements must be satisfied:
1. If there is not one already present, on
each floor level where there are bedroom(s), a carbon monoxide detector
and alarm shall be placed in the living
area outside the bedroom(s). The carbon monoxide detector shall comply
with NFPA 720 (2005 Edition).
2. A carbon monoxide detector shall:
a. Be located in the room that houses the
appliances or equipment;
b. Be either hard wired or battery powered
or both; and
c. Shall comply with NFPA 720 (2005
Edition)
3. A Product-approved vent terminal must
be used, and if applicable, a Productapproved air intake must be used.
Installation shall be in strict compliance
with the manufacturer’s instructions. A
copy of the installation instructions
shall remain with the appliance or
equipment at the completion of the
installation.
11
3.0Unit Preparations
SECTION III - UNIT
PREPARATIONS
3.1Handling Instructions
The PRESTIGE Solo is generally easier to
handle and maneuver once removed from the
shipping carton.
To remove the shipping carton:
CAUTION
Use care not to drop, bump or rotate the
boiler upside down, as damage to the
boiler will result.
1. Remove any shipping straps and open the
side of the shipping carton.
2. Slide the unit with the foam inserts out of
the carton.
3. Discard all packing materials.
3.2Wall Mounting Installation
The PRESTIGE Excellence should be wall
mounted using the bracket provided with the
boiler. The PRESTIGE Excellence is not
designed for floor installation. If floor installation is required an optional floor stand is available through ACV-Triangle Tube.
NOTICE
The wall used for mounting the PRESTIGE Excellence must be vertically
plumbed and capable of supporting a
minimum 250 pounds [115 kg] for the
PRESTIGE Excellence. Failure to comply with these requirements could result
in personal injury, death or substantial
property damage.
3.3Wall Mounting Guidelines
1. The wall-mounting bracket is designed for
stud spacing of 12 inch or 16 inch on centers. For unconventional stud spacing, a
solid / secure mounting surface must be
provided for installation of the bracket.
2. For applications using wood studs, install
the bracket using the lag screws provided
with the boiler. Ensure both lag screws are
installed securely in the studs.
3. For applications using metal studs, install
the bracket to the studs using 3/16” toggle
bolts and washers.
4. DO NOT mount or attempt to mount the
wall bracket to hollow sheet rock or lath
walls using anchors. Only install boiler to
studs or equivalent wood structure.
5. For applications using solid walls (rock,
concrete, brick, cinder block, etc.), install
the wall bracket using anchors (double
expansion shields) and bolts with washers
provided with the boiler.
6. The boiler is too heavy and bulky for a single person to lift and attempt to mount; a
minimum of 2 people is required for
mounting the boiler.
NOTICE
Use extreme care not to drop the boiler
or cause bodily injury while lifting or
mounting the boiler onto the bracket.
Once mounted verify that the boiler is
securely attached to the bracket and
wall. Failure to comply with the above
guidelines could result in property damage, personal injury or death.
12
3.0Unit Preparations
3.4Wall Bracket Installation - Stud
Walls
1. To distribute the weight of the boiler evenly
when mounting onto a stud wall it is recommended to use the PRESTIGE Solo
Wall Frame kit.
2. When using the wall frame to mount the
boiler reference the kit installation instructions and ensure the frame is securely fastened to the wall.
3. If the structure of the wall is questionable
in supporting a minimum weight of 265
pounds [120 kg.], it is recommended to use
the optional floor stand.
3.5Wall Bracket Installation - Solid
Walls
1. Locate the general area of the boiler placement.
2. Place the wall-mounting bracket on the
wall ensuring the upper edge of the bracket
is away from the wall.
3.6Boiler Mounting
1. Obtain assistance in lifting the boiler onto
the wall bracket.
2. Install the boiler making sure the boiler
mounting lip located along the upper edge
of the rear jacket panel engages the wallmounting bracket. Ensure the boiler is
seated properly and is secure.
3. Level the bracket and use a pencil to mark
the location of the mounting slots on the
wall.
4. Remove the bracket from the wall and drill
a 5/8” diameter hole by 1-3/8” deep positioned in the center of each mark.
5. Install the anchors (provided) flush or
slightly recessed in the drilled holes with
threaded side facing down.
6. Reposition the bracket on the wall and
align mounting slots/holes. Insert the two
bolts (provided) through the mounting
slots/holes and loosely tighten.
7. Level bracket and tighten bolts securely.
13
4.0Boiler Piping
SECTION IV - BOILER PIPING
4.1General Piping Requirements
- All plumbing must meet or exceed all local,
state and national plumbing codes.
- Support all piping using hangers. DO NOT
support piping by the unit or its components.
- Use isolation valves to isolate system components.
- Install unions for easy removal of the
PRESTIGE Excellence from the system
piping.
WARNING
Use a two wrench method when tightening piping onto the boiler connections.
Use one wrench to prevent the boiler
piping from turning / twisting. Failure
to support the boiler piping and connections in this manner could cause damage
to the boiler and its components.
4.2Pressure Relief Valve
1. The PRESTIGE Excellence is supplied
with a 30 psi pressure relief valve and must
be piped using the PRV connection as
shown in Fig. 5 page 15.
2. To avoid potential water damage to the surrounding area or potential scalding hazard
due to the operation of the relief valve, the
discharge piping:
- Must be connected to the discharge out-
let of the relief valve and directed to a
safe place of disposal.
- Length should be as short and direct as
possible. The size of the discharge line
should not be reduced, maintain the
same size as the outlet of the relief valve.
- Should be directed downward towards
the floor at all times. The piping should
terminate at least 6 inches [153 mm]
above any drain connection to allow
clear visibility of the discharge.
- Should terminate with a plain end, not
with a threaded end. The material of
the piping should have a serviceable
temperature rating of 250ºF or greater.
- Should not be subject to conditions
where freezing could occur.
- Should not contain any shut-off valves
or obstructions. No shut-off valve
should be piped between the boiler and
relief valve.
WARNING
Failure to comply with the guidelines on
installing the pressure relief valve and
discharge piping can result in personal
injury, death or substantial property
damage.
4.3Boiler Air Vent
NOTICE
This boiler is supplied with a special
automatic air vent that will provide reliable operation in purging air from the
boiler. The hygroscopic cap supplied
with the automatic air vent MUST
remain tight at all times on the air vent
body. The hygroscopic cap has a membrane which expands upon contact with
water and seals the air vent until the
membrane dries up due to new air forming in the air vent.
1. Make sure to fully tighten the cap on the air
vent on initial installation.
2. Never loosen the hygroscopic cap to allow
air to escape the air vent. Air will exit with
the cap fully tightened in place.
3. If the hygroscopic cap is not fully tightened, water may leak from the cap. Simply
tighten the cap securely.
14
4.0Boiler Piping
Fig. 5: Pressure Relief Valve and Boiler Drain Valve Installation
4.4Low Water Cutoff Device
- The PRESTIGE Excellence is equipped with
a factory installed pressure sensor type Low
Water Cut Off device.
- The minimum operating system pressure
allowable with this device is 10 psig.
- Check local codes if a Low Water Cutoff
Device is required. If so, determine if this
device meets the requirements of the local
codes.
NOTICE
The PRESTIGE Excellence control system also senses the water temperatures
entering and exiting the heat exchanger
to provide protection against low water
conditions. Where local codes and jurisdiction do not accept a pressure device
for low water protection, the jurisdictions may accept these PRESTIGE
Excellence integral control functions as a
means of providing low water protection.
4.5Additional Limit Control
If a separate LWCO device is required by the
local jurisdiction or when the boiler is installed
above the system piping, the following guidelines must be followed:
- The LWCO device must be designed
for water installations, electrode probetype is recommended.
- The LWCO device must be installed in
a tee connection on the boiler supply
piping above the boiler.
- Wiring of the LWCO device to the PRESTIGE Excellence is done directly onto the
low voltage terminal strip, reference Fig.
15 page 29 for available terminals for an
external limit (manual or auto reset).
If the installation is to comply with ASME or
Canadian requirements, an additional high
temperature limit may be needed. Consult
local code requirements to determine compliance. The limit should be installed as follows:
- Install the limit in the boiler supply piping between the boiler and any isolation
valve.
15
4.0Boiler Piping
- Consult heat exchanger for maximum
set point of limit.
- For wiring of the limit, reference Fig. 15,
page 29, using the external manual reset
terminals on the low voltage terminal
strip. This will provide a "hard" lockout
requiring a manual reset of the control.
4.6Backflow Preventer
- Use a backflow preventer valve in the
make-up water supply to the unit as
required by local codes.
4.7Boiler System Piping Applications
BEST PRACTICE
It is recommended on all piping applications to utilize a primary/secondary piping arrangement as a means to provide
freeze protection of the boiler, which is an
integral function of the boiler control.
Maintain the minimum boiler flow rate
shown in Graphs 1 through 6 on pages 94
through 96. For other piping arrangements, contact ACV-Triangle Tube
Technical Support or consult other
approved/recognized design arrangements.
BEST PRACTICE
CAUTION
Undersized expansion tanks will cause
system water to be lost through the pressure relief valve and cause additional
makeup water to be added to the system.
Eventual boiler heat exchanger failure
can result due to this excessive makeup
water addition.
Refer to the expansion tank manufacturer
instructions for additional installation details.
Connect the expansion tank to an air separator
only if the air separator is located on the suction side (inlet) of the system circulator.
Always locate and install the system fill connection at the same location as the expansion
tank connection to the system.
4.8.1Diaphragm Expansion Tank
Always install an automatic air vent on the top
of the air separator to remove residual air from
the system.
4.8.2Closed-Type Expansion Tank
It is recommended to pitch any horizontal piping
upwards toward the expansion tank 1 inch per 5
feet of piping. Use 3/4” piping for the expansion
tank to allow air within the system to rise.
On piping applications utilizing a single
zone or other recognized piping design
arrangements, it is recommended that the
installer uses flow/check valves with
weighted seats at or near the appliance to
prevent gravity circulation.
4.8Expansion Tank and Makeup
Water
Ensure the expansion tank is properly sized for
the boiler volume (3 gallons [12 L]) and the
system volume and temperature.
CAUTION
DO NOT install automatic air vents on a
closed-type expansion tank system. Air
must remain in the system and be
returned to the expansion tank to provide an air cushion. An automatic air
vent would cause air to be vented from
the system resulting in a water-logged
expansion tank.
4.9Circulator
The PRESTIGE Excellence requires an external
circulator to provide circulation through the boiler.
16
4.0Boiler Piping
The circulator, when wired directly to the PRESTIGE Excellence, will allow for domestic hot
water priority and provide circulation for the
freeze protection feature of the boiler control. See
Graph 1 on page 78 for pressure drop and minimum flow rate through the boiler.
4.10Sizing Primary Piping
See Fig. 7 through 10, pages 20 - 21, for recommended piping arrangements based on various
applications. Size the piping and system components required in the space heating system
using recognized design methods.
4.11Domestic Hot Water System Piping
See Fig. 7 through 10, pages 20 - 21 for recommended piping to a DHW system. This recommended piping configuration ensures priority is
given to the production and recovery of the DHW.
The piping for the DHW is separate from the
boiler system piping and does not require a primary / secondary piping configuration.
To wire the DHW circulator to the boiler control
module, reference Section VIII - External Wiring.
NOTICE
To ensure an adequate flow rate through
the PRESTIGE Excellence, the boiler supply and return piping size must be a minimum of 1 inch.
4.13System Piping - Zone Valves
Connect the PRESTIGE Excellence to the system
piping as shown in Fig. 11 on page 20 when zoning with zone valves. The primary / secondary
piping ensures that the boiler loop has sufficient
flow.
NOTICE
To ensure an adequate flow rate through
the PRESTIGE Excellence, the boiler supply and return piping size must be a minimum of 1 inch.
4.14System Piping - Through Boiler
In applications in which primary/secondary
arrangement is not utilized, the PRESTIGE
Excellence allows this flexibility due to a lower
boiler pressure drop, see Graph 1 on pages 78.
4.12System Piping - Zone Circulators
Connect the PRESTIGE Excellence to the system piping as shown in Fig. 7 on page 20 when
zoning with zone circulators.
The installer must provide a separate circulator
for each zone of space heating as well as the
boiler circulator.
Figure 9 on page 21 illustrates a multiple zone
valve system with a single system/boiler circulator. A by-pass loop with a pressure differential
valve must be installed on the system piping.
Figure 10 on page 21 illustrates a single zone utilizing the boiler circulator as the system circulator.
4.15System Piping - Radiant Heating
The heat exchanger design of the PRESTIGE
allows operation in a condensing mode. This
feature requires no regulation of the return temperature back to the boiler in radiant heating
applications.
The design and construction of the PRESTIGE
heat exchanger allows the installation of the boiler
on systems with non - oxygen barrier tubing.
17
664A0100 - Rev. A
4.0Boiler Piping
CAUTION
DO NOT install a SMART tank along
with the PRESTIGE in systems with
non-oxygen barrier tubing. Failure to
comply could result in premature failure
of the SMART tank.
The boiler water supply temperature can be
maintained by the PRESTIGE, eliminating
the need for a mix system to achieve the
desired temperature.
It is recommended for the installer to install a
high temperature limit to ensure that the primary supply temperature does not exceed the
maximum allowable temperature for the radiant tubing.
Size the system piping and circulator to provide the flow needed for the radiant system.
4.16System Piping - Special
Application
If the boiler is used in conjunction with a
chilled water/medium system, the boiler and
chiller must be piped in parallel. Install
flow/check valves to prevent the chilled medium from entering into the boiler.
If the boiler is used to supply hot water to the
heating coils of an air handler where they may
be exposed to chilled air circulation, install
flow/check valves or other automatic means
to prevent gravity circulation of the boiler
water during cooling cycles.
NOTICE
To ensure an adequate flow rate through
the PRESTIGE Excellence, the boiler supply and return piping size must be a minimum of 1 inch.
NOTICE
The addition of the high temperature limit
is important if the PRESTIGE is connected to a domestic hot water system, which
requires a high primary supply water
temperature.
664A0100 - Rev. A
18
4.0Boiler Piping
Fig. 6: Piping Component Legend
664A0100 - Rev. A
19
4.0Boiler Piping
Note: Reference Fig. 20, page 36 for
Prestige Wiring.
Fig. 7: System Piping - Zoning with Zone Circulators
Note: Reference Fig. 21, page 36 for
Prestige Wiring.
Fig. 8: System Piping - Zoning with Zone Valves
NOTICE
The boiler system piping shown must be a “closed” system to avoid any
oxygen contamination and potential failure of the outer tank of the Smart.
20
664A0100 - Rev. A
4.0Boiler Piping
Note: Reference Fig. 22, page 37 for
Prestige Wiring.
Note: Verify CH circulator is
properly sized to overcome the
system pressure drop and provide adequate flow through the
boiler system.
Fig. 9: System Piping - Multiple Zone Valve with Single System/Boiler Circulator
Note: Reference Fig. 23, page 37 for
Prestige Wiring.
Note: Verify CH circulator is properly sized to
overcome the system pressure drop and provide adequate flow through the
boiler system.
Fig. 10: System Piping - Single Zone System with Single System/Boiler Circulator
NOTICE
664A0100 - Rev. A
The boiler system piping shown must be a “closed” system to avoid any
oxygen contamination and potential failure of the outer tank of the Smart.
21
5.0Installing Vent/Combustion Air & Condensate Drain
SECTION V - INSTALLING VENT
/ COMBUSTION AIR &
CONDENSATE DRAIN
5.1Installing Vent and Combustion Air
DANGER
The PRESTIGE Excellence must be vented and supplied with combustion air as
shown in the PRESTIGE Excellence Vent
Supplement, included in the boiler installation envelope. Refer to optional vent kit
instructions for additional vent installation instructions. Once installation is
completed, inspect the vent and combustion air system thoroughly to ensure systems are airtight and comply with the
instructions given in the venting supplement and are within all requirements of
applicable codes. Failure to comply with
the installation requirements on the venting and combustion air piping will cause
severe personal injury or death.
WARNING
Ensure installation of the condensate
drain assembly included the metal washer. Failure to comply could result in the
trap assembly dislocating from the boiler.
WARNING
Ensure the condensate drain assembly
contains the plastic seated ball. Do not
install the condensate drain assembly if
the ball is lost or missing, replace the
entire assembly.
4. Remove the compression nut and rubber
seal from the condensate drain assembly
drain outlet.
5. Using 3/4” x 2’ flexible PVC tube provided, slide the compression nut and rubber
seal over the pipe
NOTICE
5.2Installing Condensate Drain
Assembly
1. Locate the condensate drain assembly and
ensure the metal washer is installed as
shown in Fig. 11 on page 23.
NOTICE
The installer may want to fill the condensate trap with water prior to assembling on the unit.
2. Install the condensate drain assembly on the
boiler condensate drain by pushing the condensate drain assembly up until it stops.
3. Tighten the condensate drain assembly
retaining nut with rubber seal.
The use of 3/4” PVC or CPVC pipe is
also acceptable. If 3/4” pipe is used
deburr and chamfer pipe to allow mating onto the drain assembly.
6. Thread the rubber seal into the compression nut to ease installation of the pipe to
the drain assembly.
7. Seat the pipe onto the drain assembly and
tighten the compression nut. Hand tight
only!
NOTICE
The installer may opt to use 13/16" ID
tubing in lieu of rigid piping.
22
664A0100 - Rev. A
5.0Installing Vent/Combustion Air & Condensate Drain
NOTICE
The drain line materials must be an
approved material by the authority having jurisdiction. In absence of such
authority, PVC and CPVC piping must
comply with ASTM D1785 or D2845.
The cement and primer used on the piping must comply with ASME D2564 or
F493. For installations in Canada, use
CSA or ULC certified PVC or CPVC
pipe, fittings and cement/primer.
8. Continue the pipe from the drain assembly
to a floor drain or condensate pump.
NOTICE
When selecting and installing a condensate pump, ensure the pump is approved
for use with condensing boilers and furnaces. The pump should be equipped
with an overflow switch to prevent property damage from potential condensate
spillage.
9. The PRESTIGE Excellence will typically
produce a condensate that is considered
slightly acidic with a pH content below 3.0.
Install a neutralizing filter if required by
authority having jurisdiction.
CAUTION
The condensate drain must remain filled
and unobstructed and allow unrestricted
flow of condensate. The condensate
should not be subject to conditions
where freezing could occur. If the condensate is subjected to freezing or
becomes obstructed , it can leak, resulting in potential water damage to the boiler and surrounding area.
Fig. 11: Condensate Drain Assembly
664A0100 - Rev. A
23
6.0Gas Piping
SECTION VI - GAS PIPING
6.1Gas Supply Piping Connection
NOTICE
The gas supply piping must be installed
in accordance to all applicable local,
state and national codes and utility
requirements.
1. Install a 1/2” NPT for PRESTIGE
Excellence
2. Install a manual shutoff valve in the gas
supply piping as shown in Fig. 12. For
installations in Canada the installer must
tag and identify the main shutoff valve.
3. Install a sediment trap (drip leg) on the gas
supply line prior to connecting to the PRESTIGE Excellence gas train as shown in Fig.
12.
7. Use pipe dope compatible with natural and
propane gases. Apply sparingly only to the
male threads of pipe joints so that pipe
dope does not block gas flow.
WARNING
Failure to apply pipe dope as detailed
above can result in severe personal
injury, death or substantial property
damage.
WARNING
Use a two-wrench method of tightening
gas piping near the unit and its gas piping connection. Use one wrench to prevent the boiler gas line connection from
turning and the second to tighten adjacent piping. Failure to support the boiler gas piping connection could damage
the gas line components.
4. Support the gas piping using hangers. Do
not support the piping by the unit or its
components.
5. Purge all air from the gas supply piping.
6. Before placing the PRESTIGE Excellence
into operation, check and test all connections for leaks.
- Close the manual shutoff valve during
any pressure test with less than 13”w.c..
- Disconnect the PRESTIGE Excellence
and its gas valve from the gas supply
piping during any pressure test greater
than 13”w.c..
WARNING
Do not check for gas leaks with an open
flame. Use a gas detection device or bubble test. Failure to check for gas leaks
can cause severe personal injury, death
or substantial property damage.
Fig. 12: Recommended Gas Supply Piping
24
664A0100 - Rev. A
6.0Gas Piping
6.2Natural Gas
6.2.1Pipe Sizing
Refer to Table 1 for schedule 40 metallic pipe
length and diameter requirements for natural
gas, based on rated PRESTIGE Excellence
input (divide by 1,000 to obtain cubic feet per
hour).
- Table 1 is based on Natural Gas with a specific gravity of 0.60 and a pressure drop
through the gas piping of 0.30”w.c..
- For additional gas piping sizing information, refer to ANSI Z223.1. For Canadian
installations refer to B149.1 or B149.2.
6.2.2Supply Pressure Requirements
1. Pressure required at the gas valve inlet
supply pressure port:
- Maximum 13”w.c. at flow or no flow
conditions to the burner.
- Minimum 5”w.c. during flow conditions
to the burner. Must be verified during
start up and with all other gas appliances
operating within the building.
2. Install 100% lockup gas pressure regulator
in the gas supply line if inlet pressure can
exceed 13”w.c at any time. Adjust the lockup pressure regulator for 13”w.c maximum.
WARNING
DO NOT adjust or attempt to measure
gas valve outlet pressure. The gas valve
is factory-set for the correct outlet pressure. This setting is suitable for natural
gas and propane and requires no field
adjustment. Attempts by the installer to
adjust or measure the gas valve outlet
pressure could result in damage to the
valve, causing potential severe personal
injury, death or substantial property
damage.
NOTICE
The natural gas orifice requirements are:
PRESTIGE Excellence: 0.242” (6.15
mm)
Length of Pipe in
664A0100 - Rev. A
Table 1: Gas Piping Sizing - Natural Gas
Capacity of Schedule 40 Metallic Pipe in Cubic Feet of Natural Gas Per
Feet
SCH 401/2"3/4"1"1-1/4"1-1/2"
1013227852010501600
20921903507301100
3073152285590890
4063130245500760
5056115215440670
754593175360545
1003879150305460
1503164120250380
Hour (based on 0.60 specific gravity, 0.30" w.c. pressure drop)
25
6.0Gas Piping
6.3Propane Gas
6.3.1Pipe Sizing - Propane Gas
WARNING
The unit was shipped with a propane
conversion kit which is located on the
top of the unit in the instructions packet.
This kit includes all the necessary parts
and instruction to perform the conversion from natural to propane gas. If this
conversion kit is missing, please contact
ACV-Triangle Tube Technical Support
before installing unit for missing kit.
WARNING
Prior to start up, ensure the unit is set to
fire propane. Check the rating label for
the type of fuel. Check the gas valve for
propane conversion label. If there is a
conflict or doubt on the burner set up,
remove the gas valve and check for the
propane orifice, see Fig. 16 on page 27.
Failure to ensure proper burner setup
could result in severe personal injury,
death or substantial property damage.
6.3.2Propane Gas Supply Pressure
Requirements
1. Adjust the propane supply regulator provided by the gas supplier for 13”w.c. maximum pressure
2. Pressure required at the gas valve inlet supply pressure port:
- Maximum 13”w.c. at flow or no flow
conditions to the burner
- Minimum 5”w.c. during flow conditions
to the burner. Must be verified during
start up and with all other gas appliances
operating within the building.
WARNING
DO NOT adjust or attempt to measure
gas valve outlet pressure. The gas valve
is factory-set for the correct outlet pressure. This setting is suitable for natural
gas and propane and requires no field
adjustment. Attempts by the installer to
adjust or measure the gas valve outlet
pressure could result in damage to the
valve, causing potential severe personal
injury, death or substantial property
damage.
Contact the local propane gas supplier for recommended sizing of piping, tanks and 100%
lockup gas regulator.
NOTICE
The propane orifice requirements are:
PRESTIGE Excellence: 0.185” (4.7 mm)
26
664A0100 - Rev. A
6.0Gas Piping
664A0100 - Rev. A
Fig. 13: Gas Valve / Venturi Assembly - PRESTIGE Excellence
27
7.0Internal Wiring
SECTION VII - INTERNAL
WIRING
WARNING
ELECTRICAL SHOCK HAZARD. For
your safety, disconnect electrical power
supply to the unit before servicing or
making any electrical connections to
avoid possible electric shock hazard.
Failure to do so can cause severe personal injury or death.
CAUTION
Prior to servicing, label all wires before
disconnecting. Wiring errors can cause
improper and dangerous operation.
Verify proper wiring and operation after
servicing.
7.1General Requirements
Fig. 14: ACVMax Control Module Fuse Location
- Wiring must be N.E.C Class 1.
- If original wiring as supplied with the unit
must be replaced, use only Type T 194ºF
[90ºC] wire or equivalent as a minimum.
- The PRESTIGE must be electrically
grounded as required by National
Electrical Code ANSI/NFPA 70 - latest edition and / or the Canadian Electrical Code
Part 1, CSA C22.1, Electrical Code.
7.2Fuse Locations
The ACVMax control module contains 3 internal replaceable 5A fuses as shown in Figure
19.
The top two fuses protect the PRESTIGE as
well as the CH, DHW, and Flame outputs.
The bottom fuse protects the P3, P4, and Alarm
outputs.
Spare fuses are located on the back of the control module enclosure.
28
664A0100 - Rev. A
6
5
4
3
2
1
X
11
Y
Y
Y
Y
Y
Y
Y
7YY
8
8
3
7
2
6
1
4
7
14
9
2
8
1
13
2
1
3
9
Y
Y
9YY
10YY
Y
Y
Y
Y
Y
Cascade
Master
ACV MAX
Control Board
6
5
1
2
4
3
1
2
3
4
5
12
11
6
4
3
2
1
2
1
1
2
3
1
2
3
4
5
5
6
6
X15
X10
X12
P
14
P13
X9
X16
X1
X3
X2
X5
X6
X4
X7
W
W
W
W
W
W
W
W
W
W
W
W
BK
W
BK
W
BK
W
W
BK
W
BK
W
BK
R
BK
Prestige Excellence Internal Wiring
Wire Legend
- Line Voltage
- Ingnition Cable
Wire Color Legend
BK – Black
W – White
GR – Green
BL – Blue
R – Red
O – Orange
V – Violet
Y – Yellow
BR – Brown
GY – Gray
123
1
21234123456
F00
GND
GND
Ignitor
On / Off
Switch
Blower
W
BK
1
Gas Valve
(Excellence 110)
2
2
1
3
2
1
GND
Blower
Power Terminals
CH2
Thermostat
System
Sensor
Modulation
Signal
CH1
Thermostat
Outdoor
Sensor
Modbus
DHW Sensor
W
BK
R
W
V
BK
1
2
4
5
Blower
Signal Terminals
3-Way Valve
Water Pressure
Sensor
BK
V
W
R
1
7
8
2
A
B
C
D
W
O
BK
R
- Low Voltage
Flue Temperature Sensor
Return Temperature Sensor
Supply Temperature Sensor
R
R
BL
BL
Y
Y
4
3
2
1
2
1
W
O
O
BR
BR
3
2
1
6
5
4
9
8
7
12
11
10
15
14
13
18
17
16
21
20
19
GND
GND
GND
BK
W
BK
BK
BK
BK
BK
W
W
W
W
W
W
BK
Auto Reset
Limit
Mix
Sensor
Manual Reset
Limit
BR
BR
O
O
BK
BK
R
BK
O
W
BK
BK
BR
BK
M
1
2
3
X
13
Cascade
Slave
ACV MAX
Display
6
5
4
3
2
1
6
5
4
3
2
1
7
8
9
10
5
4
2
Flame
P4 Pump
P3 Pump
DHW Pump
Power Supply
Alarm
L
G
N
L
G
N
L
G
N
L
G
N
L
G
N
L
G
N
L
G
N
CH Pump
A1002507
7.0Internal Wiring
Fig. 15: Prestige Solo Boiler Factory Wiring
664A0100 - Rev. A
29
8.0External Wiring
SECTION VIII - EXTERNAL
WIRING
8.1Installation Compliance
All field wiring made during installation must
comply with:
- National Electrical Code NFPA 70 and any
other national, state, provincial or local
codes or requirements.
- In Canada, CSA C22.1 Canadian Electrical
Code Part 1, and any other local codes.
WARNING
ELECTRICAL SHOCK HAZARD.
Before making any electrical connections to the PRESTIGE, disconnect electrical power supply at the service panel.
Failure to comply can cause severe personal injury or death.
NOTICE
The line voltage terminals are located on
the right set of terminals 23 through 40.
The low voltage terminals are located on
the left set of terminals 1 through 22.
2. Route the incoming 120 VAC power wire
through the provided openings in the bottom jacket panel.
3. The unit is provided with a service switch
located on the front panel, check local code
requirements for compliance.
NOTICE
If local electrical codes or conditions
require an additional service switch, the
installer must provide and install a fused
disconnect or 15 amp (minimum) service
switch.
8.3Circulator Wiring
1. The circulator connections used will
depend on the systems piping layout.
NOTICE
All circulators are fused with a common 5A
fuse located on the main control board. The
total combined amp draw of the circulators,
alarm, and flame terminals must not exceed
5 amps at any time. Use an isolation relay to
lower the total combined amp draw if
exceeding this limits.
8.2Line Voltage Connections
1. Connect a dedicated 120 VAC/15A service
to the line voltage terminal on the terminal
block, Fig. 20 on page 31, located internally
in the lower right corner, as shown in Fig.
21.
Figure 16: Terminal Strip Location
2. Connect the CH circulator to the line voltage terminal on the terminal block, Fig. 15
on page 29, located internally in the lower
right corner, as shown in Fig. 16. This circulator is typically used as the
primary/boiler circulator to supply heat to
the central/space heating loop.
3. Connect the DHW circulator to the line
voltage terminal on the terminal block, Fig.
15 on page 29, located internally in the
lower right corner, as shown in Fig. 16. The
DHW circulator is enabled during a DHW
call. This circulator is typically used to
supply heat to an indirect hot water heater.
4. Connect the P3 circulator to the line voltage
terminal on the terminal block, Fig. 15 on
page 29, located internally in the lower right
corner, as shown in Fig. 16. This circulator
is typically used to circulate water in the
30
664A0100 - Rev. A
8.0External Wiring
secondary CH loop when zoning with zone
valves or as a dedicated circulator to a
space heating zone.
5. Connect the P4 circulator to the line voltage
terminal on the terminal block, Fig. 15 on
page 29, located internally in the lower right
corner, as shown in Fig. 16 on page 30. This
circulator is typically used as a dedicated
circulator to a second space heating zone.
8.4Alarm Wiring
The alarm contact closes whenever the
Prestige is in a soft or hard lockout. This
dry contact can be connected to an external
monitoring system or other indicator to alert
the operator that the Prestige is locked out.
1. Connect the external monitoring device to
the line voltage terminal on the terminal
block, Fig. 15 on page 29, located internally
in the lower right corner, as shown in Fig. 16
on page 30.
NOTICE
CH and DHW call connections to the
PRESTIGE require a dry contact with no
external voltage present. Ensure no external voltage is present on each set of wires
before connecting to the PRESTIGE. If
external voltage is present, the use of an
isolation relay is required to prevent damage to the ACVMax controller.
NOTICE
The alarm contact is fused with a common
5A fuse located on the main control board.
The total combined amp draw of the circulators, alarm, and flame terminals must not
exceed 5 amps at any time. Use an isolation
relay to lower the total combined amp draw
if exceeding this limits.
8.5Low Voltage Connections
NOTICE
Line and Low Voltage wiring should be
separated to prevent possible electrical
noise on the low voltage circuits. Line
and Low Voltage wiring should use separate electrical knockouts on the PRESTIGE cabinet and should remain separated inside the PRESTIGE.
Figure 17: Low Voltage Connections
8.6Thermostat Wiring
The ACVMax control has two thermostat call
inputs for multiple zone / temperature systems.
This allows each call to have its own outdoor reset
curve and maximizes the efficiency of the system.
WARNING
Simultaneous CH1 and CH2 calls will
result in the PRESTIGE operating at the
highest target temperature. The use of a
mixing device on the lower temperature
zones such as the ACV-Triangle Tube
Optima Series SMV Control may be
required to protect the lower temperature zones from damage.
1. Connect the room thermostat or dry contact
end switch to the low voltage terminal strip
located on the bottom of the main control
board as shown in Fig. 14 on page 28 & Fig
17.
664A0100 - Rev. A
31
8.0External Wiring
2. Follow thermostat manufacturer’s instructions for proper installation. Thermostat
should be located on an inside wall away
from any heat or cold influences such as
drafts, lights, fireplaces, etc.
3. Set the thermostat anticipator (If applicable) as follows:
- Set for 0.2 amps when wired directly to
the PRESTIGE.
- Set to match the electrical power
requirements of the connected device
when wired to zone relays or other
devices. Refer to the relay manufacturer’s specifications and the thermostat
instructions for additional information
on anticipator setting.
NOTICE
The use of power stealing thermostats
which draw their power from the PRESTIGE can lead to erratic or unpredictable operation.
vide a “hard” lockout requiring a manual reset
of the PRESTIGE or a “soft” lockout in which
the PRESTIGE will automatically reset when
the limit resets.
NOTICE
Manual Reset Limit and Auto Reset
Limit connections to the PRESTIGE
require a dry contact with no external
voltage present. Ensure no external voltage is present on each set of wires before
connecting to the PRESTIGE. If external voltage is present, the use of an isolation relay is required to prevent damage
to the ACVMax controller.
1. Remove the factory installed jumper wire
on the Manual Reset or Auto Reset terminals that will accept the additional boiler
limit.
2. Connect the additional boiler limit to the
low voltage reset limit terminal strip located on the bottom right of the main control
board as shown in Fig. 14 on page 28.
8.7Outdoor Sensor Wiring
The Outdoor Reset function and Warm
Weather Shutdown (WWSD) features require
the connection of the included outdoor temperature sensor. See page 64 for outdoor sensor
installation and setup.
8.8Domestic Hot Water Wiring
An indiriect water heater sensor is prewired to
the low voltage terminal strip on the wiring
panel below he PRESTIGE control module.
8.9Additional Boiler Limits
Additional boiler limits (High Limit, LWCO,
etc.) can be wired into either the Manual Reset
Limit or Auto Reset Limit terminals of the
PRESTIGE. These limit connections will pro-
8.10External Modulation Control
The PRESTIGE firing rate can be controlled by
an external modulating boiler controller. See
page 65 for external modulation signal wiring
and setup.
8.11System Sensor Wiring
An optional system temperature sensor can be
placed on the central heating loop to control the
temperature in the central heating loop instead
of the boiler loop. When connected, the PRESTIGE will automatically modulate to maintain
the target temperature in the central heating
loop. The boiler supply temperature sensor
will continue to be used as a high temperature
limit.
32
664A0100 - Rev. A
8.0External Wiring
CAUTION
Locate the system temperature sensor
where it can accurately measure the supply temperature to the heating system.
Inaccurate system temperature readings
could lead to overheating or under heating resulting in property damage.
1. Connect the system temperature sensor to
the low voltage terminal strip on the wiring
panel below the PRESTIGE control module, as shown in Fig. 14 on page 28 & Fig
17 on page 28.
8.12Modbus Wiring
The ACVMax control includes the ability to
communicate with building management systems (BMS) through a Modbus interface.
Consult the PRESTIGE ACVMax Control
Supplement for more information.
664A0100 - Rev. A
33
8.0External Wiring
Fig. 18: Multiple Zone Field Wiring Using Zone Valves & Zone Valve Panel
34
664A0100 - Rev. A
8.0External Wiring
Fig. 19: Multiple Zone Field Wiring using Zone Circulators & Zone Relay Panel
664A0100 - Rev. A
35
8.0External Wiring
Note: Reference Fig. 7, page 20 for
System Piping.
Fig. 20: Prestige Wiring - Zoning with Zone Circulators
Note: Reference Fig. 8, page 20 for
System Piping.
Fig. 21: Prestige Wiring - Zoning with Zone Valves
36
664A0100 - Rev. A
8.0External Wiring
Note: Reference Fig. 9, page 21 for
System Piping.
Fig. 22: Prestige Wiring - Multiple Zone Valve with Single System/Boiler Circulator
Note: Reference Fig. 10, page 21 for
System Piping.
Fig. 23: Prestige Wiring - Single Zone System with Single System/Boiler Circulator
664A0100 - Rev. A
37
9.0ACVMax Operation
SECTION IX - ACVMAX OPERATION
The ACVMax Boiler Management System is designed to be flexible yet easy to use. ACVMax
monitors and controls the Prestige to provide heat as efficiently as possible. ACVMax includes
many advanced features which previously were not available in the Prestige.
• Two central/space heating (CH) call inputs with separate outdoor reset curves.
• Domestic Hot Water (DHW) call input with optional priority.
• EZ Setup feature allows the installer to quickly customize ACVMax for each installation.
• Cascade function allows up to six Prestige boilers to operate together in a single heating system.
• Modbus interface for integrating with building management systems.
All ACVMax features are easy to use through a graphical display where information is presented
either graphically or in plain English, so code charts are not required. Figure 24 shows a
ACVMax display example of the Prestige fired for a domestic hot water demand.
Fig. 24: ACVMax User Interface
38
664A0100 - Rev. A
9.0ACVMax Operation
9.1ACVMax Navigation
Navigation is performed through four arrow buttons UP, DOWN, LEFT, RIGHT with a center
OK button for making selections and entering information. The INSTALLER button (the small
round button) provides the installing contractor with full access to all available features after
entering a password. Reference the ACVMax Control Supplement for Installer level functions.
Figure 25 – ACVMax Navigation Buttons
The Main Menu can be entered from the Home Screen by pressing the OK button. The menu
system utilizes icons to represent each selection. The current selected menu is displayed as a
reversed image with a text description shown at the top of the display. Menus can be entered by
highlighting the desired icon and pressing the OK button. The Home Screen icon at the bottom of each screen returns to the Home Screen when selected. The Previous Screen icon at
the bottom of each screen returns to the previous screen when selected.
664A0100 - Rev. A
39
9.0ACVMax Operation
9.2ACVMax Menu Structure
40
664A0100 - Rev. A
9.0ACVMax Operation
9.3Home Screen
The Home Screen presents status information in a very user friendly way so that the current
state of the boiler can be quickly accessed.
The screen backlight will illuminate when any button is pressed and remain illuminated for five
minutes. Press the UP or DOWN buttons to turn on the backlight while at the Home Screen
without making any changes.
The screen contrast can be adjusted at the Home Screen by pressing and holding the OK button
then pressing and holding the LEFT arrow along with the OK button. The contrast can then
be increased by pressing the UP button or decreased by pressing the DOWN button while hold-
ing in the OK button and LEFT arrow. All buttons must be released and the procedure performed again to switch between increasing and decreasing contrast.
664A0100 - Rev. A
41
9.0ACVMax Operation
9.4Status Line Messages
Status Line MessageDescription
StandbyIndicates that the Prestige is ready to respond when a demand is received.
CH DemandA central heating call has been received.
DHW DemandA domestic hot water call has been received.
CH / DHW Demand
DHW Priority
Priority Timeout
External DemandAn external modulation call has been received.
Central heating and domestic hot water calls are being received simultaneously. Both calls are being satisfied simultaneously because domestic hot
water priority has been disabled.
Central heating and domestic hot water calls are being received simultaneously. Domestic hot water call is being satisfied first because it has priority
over central heating calls.
Central heating and domestic hot water calls are being received simultaneously. The domestic hot water priority time limit has been exceeded.
Priority will now switch back and forth between central heating and domestic hot water calls until one call is satisfied.
Slave OperationThe Prestige is a slave in a cascade system.
Manual OperationThe burner or circulators have manually been enabled in the Installer Menu.
CH Burner DelayThe burner will not fire until the call blocking time has elapsed.
DHW Burner DelayThe burner will not fire until the call blocking time has elapsed.
The burner is not fired because the supply/system water temperature
CH Setpoint Reached
DHW Setpoint Reached
CH Post Pump
DHW Post Pump
Freeze Protection
Boiler Protection
exceeds the setpoint. The central heating circulator continues to operate
and the burner will fire again once the supply/system water temperature
drops below the setpoint.
The burner is not fired because the supply/system water temperature
exceeds the setpoint. The domestic circulator continues to operate and the
burner will fire again once the supply/system water temperature drops
below the setpoint.
The central heating circulator is running to remove heat from the Prestige at
the completion of a call.
The domestic hot water circulator is running to remove heat from the
Prestige at the completion of a call.
The burner is fired because the freeze protection feature has been activated.
Freeze protection will end once the supply/system water temperature is
raised to 60ºF [16ºC].
The burner firing rate is being reduced because of an excessive difference
between the boiler supply and return temperatures. The firing rate will
begin increasing once the temperature difference is less than 45ºF [25ºC].
Lockout DescriptionThe lockout which currently has the Prestige shut down is displayed.
42
664A0100 - Rev. A
9.0ACVMax Operation
9.5Main Menu
The Main Menu can be entered from the Home Screen by pressing the OK button. The menu
system utilizes icons to represent each selection. The currently selected menu is displayed
as an inversed image with a text description shown at the top of the display. Menus can be
entered by highlighting the desired icon and pressing the OK button.
664A0100 - Rev. A
43
9.0ACVMax Operation
9.6EZ Setup
Navigation: Home Screen>Main Menu>EZ Setup
The EZ Setup menus provide a simple way to quickly customize the
TriMax for each installation. EZ Setup prompts the user to make selections
which allows the Prestige to be setup very quickly without searching
through long lists of settings and manually making adjustments.
9.7Heating EZ Setup
Navigation: Home Screen>Main Menu>EZ Setup>Heating EZ Setup
Heating EZ Setup allows the installer to quickly customize the central heating settings for the application.
Select CH Demand prompts the installer to select how a CH Demand is generated. Press the UP or DOWN buttons to select the CH Demand type then
press the OK button to store the setting. The Select CH Demand options are:
• Thermostat & Outd. Curve – This option is only displayed when the
outdoor temperature sensor is connected. A central heating call from a
thermostat or zone panel will enable the Prestige and the setpoint will
vary with the outdoor temperature for central heating calls.
• Thermostat & Setpoint - This option is only displayed when the out-
door temperature sensor is not connected. A central heating call from
a thermostat or zone panel will enable the Prestige and the setpoint will
be fixed for central heating calls
• Constant & Outdoor Curve - This option is only displayed when the
outdoor temperature sensor is connected. The Prestige will maintain setpoint without an external call from a thermostat or zone panel. The setpoint will vary with the outdoor temperature for central heating calls.
• Constant & Setpoint - The Prestige will maintain setpoint without an
external call from a thermostat or zone panel. The setpoint will be fixed
for central heating calls.
• 0-10V Modulation Signal – This option allows the Prestige firing rate
to be controlled by an external control system.
9.7.2CH1 SetpointDefault: 180°F [82°C]
CH1 Setpoint prompts the installer to enter the fixed setpoint for a CH1
heating call when a Setpoint option is chosen in Select CH Demand. Press
the LEFT or RIGHT buttons to adjust the CH1 Setpoint then press the
OK button to store the setting.
9.7.3CH2 SetpointDefault: 140°F [60°C]
CH2 Setpoint prompts the installer to enter the fixed setpoint for a CH2
heating call when a Setpoint option is chosen in Select CH Demand. Press
44
664A0100 - Rev. A
9.0ACVMax Operation
the LEFT or RIGHT buttons to adjust the CH2 Setpoint then press the
OK button to store the setting.
Select CH1 Reset Curve prompts the installer to select an outdoor reset curve
for a CH1 heating call when an Outdoor Reset option is chosen in Select CH
Demand. Outdoor reset curve presets are available to cover most applications. The outdoor reset curve can also be adjusted to any desired settings in
the Installer Menu. Press the UP or DOWN buttons to select the outdoor
reset curve appropriate for the type of heating system then press the OK but-
ton to store the setting.
9.7.5Select CH2 Reset CurveDefault: Low Mass Radiant
Select CH2 Reset Curve prompts the installer to select an outdoor reset curve
for a CH2 heating call when an Outdoor Reset option is chosen in Select CH
Demand. Outdoor reset curve presets are available to cover most applications. The outdoor reset curve can also be adjusted to any desired settings in
Table 2: Outdoor Reset Preset Selections
PresetMinimum SetpointMaximum Setpoint
Low Mass Radiant80ºF [27ºC]140ºF [60ºC]
High Mass Radiant80ºF [27ºC]120ºF [49ºC]
Cast Iron Baseboard100ºF [38ºC]170ºF [77ºC]
Finned Tube Baseboard120ºF [49ºC]180ºF [82ºC]
Radiators120ºF [49ºC]170ºF [77ºC]
Fan Coil140ºF [60ºC]180ºF [82ºC]
the Installer Menu. Press the UP or DOWN buttons to select the outdoor
reset curve appropriate for the type of heating system then press the OK but-
ton to store the setting.
9.7.6Set Warm Weather Shutdown TemperatureDefault: OFF
Warm Weather Shutdown prompts the installer to enter an optional outdoor
temperature at which to disable the central heating function and any circulators placed into constant circulation with the Pump Constant Circulation
setting. The Prestige will continue to respond to a domestic hot water call
or a 0-10V Modulation Signal when the outdoor temperature exceeds the
Warm Weather Shutdown Temperature setting. Press the LEFT or
RIGHT buttons to adjust the Warm Weather Shutdown Temperature then
press the OK button to store the setting. The Warm Weather Shutdown
icon is displayed on the home screen when the outdoor temperature
reaches the Warm Weather Shutdown Temperature.
9.7.7CH EZ Setup Complete
EZ Setup Complete informs the installer upon completion of all necessary
steps that the EZ setup is complete. Press the OK button to return to the
EZ Setup Menu.
664A0100 - Rev. A
45
9.0ACVMax Operation
9.8Domestic Hot Water EZ Setup
Navigation: Home Screen>Main Menu>EZ Setup>DHW EZ Setup
Domestic Hot Water EZ Setup allows the installer to quickly customize the
domestic hot water settings for the application.
9.8.1Select DHW DemandDefault: Switch
Select DHW Demand prompts the installer to select the type of device which
will generate a DHW call. Press the UP or DOWN buttons to select the
DHW Demand type then press the OK button to store the setting. The Select
DHW Demand options are:
• Thermostat – A domestic hot water call from an aquastat or dry con-
tact switch will enable the Prestige with a fixed setpoint for a domestic
hot water call.
• Sensor – This option requires the use of Indirect Water Heater Sensor
PSRKIT22. The Prestige will monitor the DHW storage temperature
and generate a domestic hot water call when the temperature drops
below the DHW Storage Setpoint by 6ºF [3ºC].
9.8.2Boiler DHW SetpointDefault: 186°F [86°C]
Boiler DHW Setpoint prompts the installer to enter the fixed boiler setpoint
temperature during a Domestic hot water call when the Switch option is chosen in Select DHW Demand. Press the LEFT or RIGHT buttons to adjust
the Boiler DHW Setpoint then press the OK button to store the setting.
9.8.3DHW Storage SetpointDefault: 140°F [60°C]
DHW Storage Setpoint prompts the installer to enter the domestic hot water
storage setpoint temperature when the Sensor option is chosen in Select
DHW Demand. Press the LEFT or RIGHT buttons to adjust the DHW
Storage Setpoint then press the OK button to store the setting.
NOTICE
The Boiler DHW Setpoint will automatically be set 46°F [25°C]
higher than the DHW Storage Setpoint setting.
46
664A0100 - Rev. A
9.0ACVMax Operation
9.8.4DHW Priority TimeoutDefault: Off
DHW Priority Timeout prompts the installer to enter an optional time limit
that a domestic hot water call has priority over a central heating call. Press
the LEFT or RIGHT buttons to adjust the DHW Priority Timeout then press
the OK button to store the setting.
9.7.7CH EZ Setup Complete
EZ Setup Complete informs the installer upon completion of all necessary
steps that the EZ setup is complete. Press the OK button to return to the
EZ Setup Menu.
9.9EZ Setup Reset
Navigation: Home Screen>Main Menu>EZ Setup>EZ Setup Reset
EZ Setup Reset allows the installer to reset all EZ Setup settings back to
the original factory defaults. Follow the onscreen instructions to reset all
EZ Setup settings back to the original factory defaults.
9.10Display EZ Setup
Navigation: Home Screen>Main Menu>EZ Setup>Display EZ Setup
Display EZ Setup allows the installer to select the language used for all
text as well as the type of temperature units displayed. Press the UP or
DOWN buttons to select then press the OK button to store the setting.
664A0100 - Rev. A
47
9.0ACVMax Operation
9.11CH/DHW Operation
Navigation: Home Screen>Main Menu>CH / DHW Operation
CH / DHW Operation provides a simple way to disable either the central
heating or domestic hot water functions of the Prestige. Operation can be
enabled and disabled by selecting the central heating or domestic hot water
icon then pressing the OK button to toggle between enabled and disabled.
An icon with an X through it indicates that function has been disabled. The
disabled icon is also displayed on the home screen when a function has
been disabled.
9.12Boiler Information
Navigation: Home Screen>Main Menu>Boiler Information>Boiler
Information
Boiler Information provides real time operating information of the
Prestige. Each line contains an information item followed by its current
value. Six information items are displayed on the screen at one time. Press
the UP or DOWN buttons to scroll through additional information items.
See page 51 for a list of all information items.
9.12.1 Boiler Information Logging
Some information items include a logging function which records one sample every 12 minutes to produce a graph of the last 24 hours. Select the information item in Boiler Information then press the OK button to view its
graph. The following items have a logging function:
• Boiler Firing Rate
• Ionization Current
• Boiler Setpoint
• Boiler Supply Temperature
• Boiler Return Temperature
• Boiler Flue Temperature
• Outdoor Temperature
• DHW Storage Temperature
• External Modulation Signal
• Pressure
48
664A0100 - Rev. A
9.0ACVMax Operation
9.12.2Information Items
Information ItemDescription
Boiler Status
Heating Call
DHW Call
Boiler Firing Rate
Ionization Current
Boiler Setpoint
Supply Temp.
Return Temp.
Boiler Flue Temp.
Outdoor Temp.
DHW Storage Temp.
External Modulation Signal
Displays the current operating state of the Prestige. This is the same as
the status line on the home screen.
Displays if a central heating call is present.
Displays if a domestic hot water call is present.
Displays the current firing rate of the Prestige.
Displays the current flame ionization current from the ignitor.
Displays the current setpoint of the Prestige.
Displays the current supply temperature of the Prestige.
Displays the current return temperature to the Prestige.
Displays the current flue temperature of the Prestige.
Displays the current outdoor temperature.
Displays the current DHW storage temperature when Indirect Water
Heater Sensor PSRKIT22 is installed.
Displays the current external modulation signal being received from an
external controller.
Pressure
CH Ignitions
CH Runtime
DHW Ignitions
DHW Runtime
Mix Zone Temperature
664A0100 - Rev. A
Displays the current system pressure.
Displays the number of central heating ignitions since the unit was
installed. This counter increases in increments of twenty.
Displays the number of hours the Prestige has run for a central heating
call since the unit was installed.
Displays the number of domestic hot water ignitions since the unit was
installed. This counter increases in increments of twenty.
Displays the number of hours the Prestige has run for a domestic hot
water call since the unit was installed.
Displays the temperature of the low temperature mixed circuit.
49
9.0ACVMax Operation
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9.13Lockout History
Navigation: Home Screen>Main Menu>Boiler Information>Lockout
History
Lockout History records the last eight lockouts. Each line contains a lockout description followed by how long ago the lockout occurred. Six lockouts are displayed on the screen at one time. Press the UP or DOWN buttons to scroll through additional lockouts. See pages 54 & 55 for a list of
lockouts and descriptions.
9.13.1 Lockout Details
Some information items are recorded at the time of a lockout to aid in diagnosing the cause of the lockout. Select the lockout description in Lockout
History then press the OK button to view the recorded information. Press the
UP or DOWN buttons to scroll through the recorded information. The following information items are recorded at the time of a lockout:
• Boiler Status
• Heating Call
• Domestic Call
• Boiler Firing Rate
• Flame Ionization Current
• Boiler Setpoint
• Boiler Supply Temperature
• Boiler Return Temperature
• Boiler Flue Temperature
• Outdoor Temperature
• System Temperature
50
664A0100 - Rev. A
9.0ACVMax Operation
9.13.2Lockout Screen
The Lockout Screen replaces the Home Screen if a lockout occurs. The screen backlight will
also illuminate constantly while the Prestige is locked out. Pressing any arrow button will
return to the Home Screen so that additional troubleshooting can be performed. See pages 54
and 55 for a list of lockouts and descriptions.
664A0100 - Rev. A
51
9.0ACVMax Operation
Manual Reset Hard Lockouts
CodeLockout MessageDescription
E1Failed IgnitionThe burner failed to light after 5 ignition attempts.
E2False FlameA flame is being detected prior to ignition.
E3High Boiler TemperatureBoiler temperature has reached 210°F [99ºC]
E5Blower Speed
E8Flame Circuit ErrorFlame circuit test failed.
E9Gas Valve Circuit ErrorGas valve circuit test failed.
E13Reset Limit ReachedResets are limited to 5 every 15 minutes.
E15Sensor DriftSupply or return sensor reading has drifted.
E16Supply Sensor StuckSupply sensor reading is not changing.
E17Return Sensor StuckReturn sensor reading is not changing.
E18Sensor FailureSupply or return sensor reading changed very rapidly.
E21Internal Control FaultA / D conversion error.
E30Supply Sensor Shorted
Blower is not at correct speed or speed signal is not being received
by control module.
A short circuit has been detected in the boiler supply temperature
sensor circuit.
E31Supply Sensor Open
E43Return Sensor Shorted
E44Return Sensor Open
E47Water Pressure Sensor Error Water pressure sensor is disconnected or broken.
E80Return > SupplyReturn temperature is higher than supply temperature.
E87External Limit OpenAn external manual reset limit has opened
An open circuit has been detected in the boiler supply temperature
sensor circuit.
A short circuit has been detected in the boiler return temperature
sensor circuit.
An open circuit has been detected in the boiler return temperature
sensor circuit.
52
664A0100 - Rev. A
9.0ACVMax Operation
Automatic Reset Soft Lockouts
CodeLockout MessageDescription
E7High Flue TemperatureFlue temperature exceeds high limit.
E12Internal Control FaultEEPROM misconfiguration
E25Internal Control FaultCRC check error.
E32DHW Sensor ShortedA short circuit has been detected in the DHW temperature sensor circuit.
E33DHW Sensor OpenAn open circuit has been detected in the DHW temperature sensor circuit.
E34Low VoltageLine voltage has fallen below an acceptable operating level.
E37Low WaterWater level has fallen below an acceptable operating level.
E45Flue Sensor Shorted
E46Flue Sensor Open
E76External Limit OpenAn external automatic reset boiler limit has opened.
E81Sensor DriftSupply and return temperatures are not equal.
E89Incorrect SettingA parameter setting is in conflict with another setting.
E90Firmware MismatchControl module and display firmware versions are incompatible.
E91System Sensor ShortedA short circuit has been detected in the system temperature sensor circuit.
E92System Sensor OpenAn open circuit has been detected in the system temperature sensor circuit.
E93Outdoor Sensor ShortedA short circuit has been detected in the outdoor temperature sensor circuit.
E94Internal Display FaultDisplay memory error.
E95Supply Sensor ErrorSupply sensor reading is invalid.
E96Outdoor Sensor Open
A short circuit has been detected in the boiler flue temperature sensor
circuit.
An open circuit has been detected in the boiler flue temperature sensor
circuit.
An open circuit has been detected in the outdoor temperature sensor
circuit.
E97Cascade MismatchCascade configuration has changed.
E98Cascade Bus ErrorCommunication with other boilers has been lost.
E99Controller Bus Error
664A0100 - Rev. A
Communication between boiler display and control module has been
lost.
53
10.0Start-Up Preparation
SECTION X - START-UP
PREPARATION
NOTICE
Requirements below must be met for
warranty coverage of Prestige heat
exchangers. A thorough cleaning of any
existing system, using approved heating
system cleaning agents is required prior
to installation of the Prestige boiler.
System should be treated with an
approved inhibitor after filling for long
term protection.
10.1Boiler System Fluid Requirements
WARNING
Do not use petroleum-based cleaning or
sealing compounds in the boiler system.
Damage to seals and gaskets in the system components could occur, resulting in
substantial property damage.
NOTICE
10.1.3 Chlorinated Water
Do not use the PRESTIGE Excellence to heat a
swimming pool or spa directly.
Maintain the chlorine level of the water at levels considered safe for drinking.
10.1.4 Flush Boiler to Remove Sediment
The installer must flush the boiler system to
remove any sediment to allow proper operation
of the PRESTIGE Excellence .
Flush the systems until the water runs clean
and is free of sediment.
For zoned systems, each zone should be
flushed through a purge valve. Purge valves
and isolation valves should be installed on each
zone to allow proper flushing of the system.
10.1.5 Cleaning of Old Boiler/System:
• Drain the existing system.
• Fill system with fresh water and cleaner,
place existing boiler in operation and run
all zones.
System fluid including additives must be
practically non-toxic, having a toxicity
rating or Class of 1, as listed in Clinical
Toxicology of Commercial Products.
10.1.1 Boiler Fluid pH Level 6.0 to 8.0
Maintain the boiler fluid pH between 6.0 and
8.0. Check using litmus paper or contact a water
treatment company for a chemical analysis.
If the pH does not meet this requirement, do
not operate the PRESTIGE Excellence or leave
the unit filled until the condition is corrected.
10.1.2 Boiler Fluid Hardness Less Than 7
Grains
For areas with unusually hard water (hardness
above 7 grains) consult a water treatment
company.
• Follow manufacturer’s instructions for
proper cleaner concentration and proper
cleaning time.
• Thoroughly drain and flush system with
fresh water after cleaning.
• Install new boiler, fill system with fresh
water and proper amount of inhibitor.
• Verify pH and inhibitor level per inhibitor
manufacturer’s specs; add inhibitor if
necessary.
10.1.6 Cleaning of New Boiler/System:
• Install new boiler and flush system with
cleaner water to remove any debris.
• Fill system with fresh water and proper
amount of inhibitor.
• Verify pH and inhibitor level per inhibitor
manufacturer’s specs; add inhibitor if
necessary.
54
664A0100 - Rev. A
10.0Start-Up Preparation
10.1.7 Check and Test Antifreeze
For boiler systems containing antifreeze solutions, follow the antifreeze manufacturer’s
instructions in verifying the inhibitor level and
to ensure the fluid characteristics are within
specification requirements.
Due to the degradation of inhibitors over time,
antifreeze fluids must be periodically replaced.
Refer to the manufacturer of the antifreeze for
additional instructions.
10.1.8 Use of Antifreeze in the Boiler
System
WARNING
NEVER use automotive or ethylene glycol
antifreeze or undiluted antifreeze in the
primary system as freeze protection. This
can cause severe personal injury, death or
substantial property damage if ignored.
Determine the antifreeze fluid quantity using
the system water content volume and following
the antifreeze manufacturer instructions.
The water volume of the PRESTIGE Excellence
is approximately 5 gallons [19 L]. Remember to
include the volume of the expansion tank.
Check with local codes requirements for the
installation of backflow preventers or actual
disconnection from the boiler’s cold water fill
or make up water supply line.
NOTICE
Massachusetts Code requires the installation of a backflow preventer if
antifreeze is used.
Ensure the concentration of antifreeze to water
does not exceed a 50/50 ratio.
NOTICE
System fluid including additives, must be
practically non-toxic, having a toxicity
rating or Class of 1, as listed in Clinical
Toxicology of Commercial Products.
10.2Filling the Boiler System
1. Close the boiler drain valve located on the
bottom of the unit and any manual or automatic air vent in the system.
2. Open all system isolation valves.
3. Fill the boiler system to correct system
pressure. Correct pressure will vary with
each application.
NOTICE
Typical residential system fill pressure is
12 psi. System pressure will increase
when system temperature increases.
Operating pressure of the system should
never exceed 25 psi.
4. Purge air and sediment in each zone of the
boiler system through the purge valve.
Open air vents to allow air to be purged in
the zones.
5. Once the system is completely filled and
purged of all air and sediment, check the
system pressure and check/repair any leaks.
WARNING
Unrepaired system leaks will cause continual makeup water to be added to the
boiler. Continual makeup water will
cause mineral buildup within the heat
exchanger, reducing the heat transfer,
causing possible heat buildup and eventual heat exchanger failure.
664A0100 - Rev. A
55
10.0Start-Up Preparation
10.3Check Low Water Cut-Off Device
- The PRESTIGE Excellence is provided
with a factory installed LWCO device that
monitors system pressure.
- Access the Boiler Information Menu by following instructions in Section 9.12 on page
48. Scroll down to see the current system
pressure displayed and verify it is within the
recommended numbers given in Section 10.2
on page 53.
10.4Check For Gas Leaks
WARNING
Prior to start-up and during initial operation, smell near the floor and around the
unit for gas odorant or any unusual odor.
Do not proceed with the start-up if there
is any indication of a gas leak. Any leaks
found must be repaired immediately.
- If voltage is measured at the panel under any
condition, check and correct the external wiring.
NOTICE
In systems using 3-wire zone valves, backfeed of voltage to the unit is a common
problem. Use an isolation relay to prevent
voltage from the external circuit entering
the PRESTIGE Excellence control panel.
-Reconnect the external thermostat wires to
the low voltage terminal strip.
10.6Inspection of Condensate Drain
Assembly
1. Inspect and ensure the Condensate Drain
Assembly is properly installed as described
on page 22 and shown in Fig. 11 on page 23.
2. Remove the plug from the Condensate
Drain Assembly and fill with fresh water.
WARNING
Propane installations only - The propane
supplier mixes an odorant with the
propane to make its presence detectable.
In some cases the odorant can fade and
the gas may no longer have an odor.
Prior to start-up of the unit and periodically after start-up have the propane supplier check and verify the odorant level.
10.5Check Thermostat Circuit
- Disconnect the external thermostat wires
from the low voltage terminal strip.
- Connect a voltmeter across the wire ends of
the external thermostat wiring.
- Close each thermostat, zone valve and
relay in the external circuit one zone at a
time and check the voltage reading across
the wire ends.
NOTICE
The condensate drain assembly must be
filled with water when the PRESTIGE
Excellence is in operation. The condensate drain assembly prevents flue gas
emissions from entering the condensate
line. Failure to ensure trap is filled with
water could result in severe personal
injury or death.
3. Re-Install plug in condensate drain assembly.
- There should NEVER be voltage measured
at the wire ends.
56
664A0100 - Rev. A
11.0Start-Up Procedures
SECTION XI - START-UP
PROCEDURES
11.1Final Checks Before Start-Up
c Read Section IX regarding the operation of
the ACVMax Boiler Management System.
c Verify the PRESTIGE Excellence and the
boiler system are full of water and all system components are correctly set for operation, including the minimum flow rate
through the boiler, 78.
c Verify Start-up Preparation items outlined in
Section X have been completed.
c Verify all electrical connections are correct
and securely fastened.
c Inspect vent and combustion air piping for
signs of deterioration from corrosion, physical
damage or sagging. Verify combustion air
and vent piping are intact and correctly
installed and supported. Reference the PRESTIGE Excellence vent supplement.
c Verify burner configuration - Propane only.
11.2PRESTIGE Excellence Start-Up
1. Press the ON-OFF button located on the
front control panel to the OFF position. Turn
ON the electrical supply/service to the unit.
2. Read and follow the Operating Instructions
outlined on page 61.
If PRESTIGE Excellence Does Not Start
Correctly
1. Check for loose electrical connections,
blown fuses, (on control module and in terminals) or an open service switch.
2. Verify CH and DHW operation is enabled.
A radiator or faucet icon with an X through
it indicates that function is disabled.
3. Check the system pressure in the Boiler
Information Menu by following the
instructions in Section 9.12 on page 48.
4. Is an external limit control (if applicable)
open? Ensure the external limit is reset to
the closed position.
5. Are the gas supply valves open at the unit
and meter?
- Check for proper labeling on the gas
valve and the rating label for propane
configuration.
- If there is doubt on the burner configuration, remove the gas valve and check for
proper propane gas orifice size. Refer to
25 for orifice sizes. Refer to Fig. 13 on
page 27 for location of the propane gas orifice.
NOTICE
For natural gas applications the Prestige
Excellence requires an orifice: 0.242”
(6.15mm)
c Ensure the vent Condensate Drain
Assembly is filled with water.
6. Is incoming gas supply pressure at the unit
more than 5”w.c. and less than 13” w.c. for
natural or propane with all gas appliances
ON or OFF.
7. Are the heating thermostats set above room
temperature?
If none of these conditions correct the problem,
refer to the PRESTIGE Excellence TroubleShooting Guide or contact ACV-Triangle Tube
Technical Support.
11.3Check the PRESTIGE Excellence
and System
c Check Boiler Piping.
Check Boiler system piping and com-
ponents for leaks. If found, shut down
the unit and repair immediately.
664A0100 - Rev. A
57
11.0Start-Up Procedures
Purge any remaining air from the system
piping. Air in the system piping will
interfere with circulation creating heat
distribution problems and system noise.
c Check Vent Piping and Combustion Air
Piping.
Check for gas-tight seal at every con-
nection and seam of the venting and
combustion air piping.
WARNING
Venting system must be sealed gas-tight
to prevent flue gas spillage and potential
carbon monoxide emissions, which will
result in severe personal injury or death.
c Check Gas Piping
Check around the unit for gas odor fol-
lowing the procedure outlined in this
manual on Page 61.
be performed with calibrated equipment
to ensure proper reading and accuracy.
2. Test for CO2 or O2 and for CO during
high firing rate. The combustion readings should be within the range listed in
Table 3 on page 59. The CO level
should not exceed 100 ppm when
combustion is correct. Perform the
following procedure to manually place
the burner into high fire.
a. Press the round INSTALLER button.
Reference Fig. 25, page 39.
b. Enter the installer access code “054” by
using the LEFT and RIGHT buttons to
select a digit and the UP and DOWN
buttons to change the digit. Press the
OK button to enter the access code.
c. Press the RIGHT button to highlight
the Manual Operation iconthen
press the OK button.
WARNING
If any gas leaks are found or suspected,
shut the unit down immediately. Use a
gas detection device or bubble test to
locate the source of the gas leak and
repair at once. Do not operate the unit
until the leak is corrected. Failure to
comply with this procedure could result
in severe personal injury, death or substantial property damage.
c Verify Flame Pattern and Combustion
1. Check the flame pattern through the
inspection port of the heat exchanger.
The flame should be blue and stable.
The flame should be the length of the
burner head openings.
WARNING
The combustion testing and adjustments
must be performed by a qualified
installer, service agency or the gas supplier. All combustion measurements must
d. Press the OK button while the FAN
icon is highlighted to manually fire the
burner and power the CH circulator.
NOTICE
An adequate CH load must be present to
dissipate the heat generated during the
combustion test. If an adequate CH load
is not available, an indirect water heater
can be used to dissipate the heat by creating a DHW call which will enable the
DHW circulator.
58
664A0100 - Rev. A
11.0Start-Up Procedures
e. Press the LEFT and RIGHT buttons to
adjust the firing rate from 1% to 100%.
Hold down the LEFT or RIGHT button to rapidly increase or decrease the
firing rate.
Table 3: Recommended Combustion Levels
Natural Gas
All Models
O2 Min.2.30%2.70%
O2 Max.5.30%4.70%
CO2 Min.8.80%10.70%
CO2 Max.10.50%12.00%
CO Max.100 ppm100 ppm
Propane
Excellence
f. Press the OK button while the FAN icon
is highlighted to shutdown the burner.
g. Cycle power to the Prestige once com-
bustion testing is complete to return to
normal operation.
4. If the CO2 combustion level during low
fire (1%) is not within +/- 0.2 of the combustion level measured at high fire, adjust
the plastic OFFSET SCREW under the
cover screw on the top of the gas valve (see
Figs. 13 on page 27) according to Table 6.
DirectionExellence
Clockwise
Counter-Clockwise
Table 4: Throttle Screw - High Fire
DirectionExcellence
Clockwise
Counter-Clockwise
Table 5: Offset Screw - Low Fire
Increase CO
Decrease O
Decrease CO
Increase O
Increase CO
Decrease O
Decrease CO
Increase O
2
2
2
2
2
2
2
2
WARNING
The combustion levels should be measured at high firing rate. If the combustion levels are not within the range given
in Table 4 for the firing rate, shut the
boiler down and contact ACV-Triangle
Tube Technical Support. Failure to comply with this requirement could result in
severe personal injury, death or substantial property damage.
If the combustion levels during HIGH
FIRE (100%) is outside the recommended
combustion settings adjust the THROTTLE SCREW (see Fig. 13 on page 27)
according to Table 5.
3. Once the combustion level is set at high fire
(100%), manually place the boiler into low
fire (1%) mode by pressing the LEFT but-
ton to adjust firing rate down.
c Measure Input - Natural Gas Only
1. Ensure the boiler is firing at maximum firing
rate. To manually place the boiler into high
fire mode, reference page 58.
2. Operate the unit for approximately 10
minutes.
3. Turn off all gas appliances within the building, except the PRESTIGE Excellence.
4. At the gas meter, record the time required
to use one cubic foot of gas.
5. Calculate Natural gas input using the following equation:
3600 x 1000 / number of second recorded
for one cubic foot of gas = BTU/H.
6. The BTU/H calculated should approximate
the input rating listed on the unit.
664A0100 - Rev. A
59
11.0Start-Up Procedures
c Test High Temperature Limit
The high temperature limit can be temporarily
lowered from 210ºF [99ºC] to 102ºF [39ºC] for
testing.
1. Press the round INSTALLER button.
Reference Fig. 25, page 39.
2. Enter the installer access code “054” by
using LEFT and RIGHT buttons to select
a digit and the UP and DOWN buttons to
change the digit. Press the OK button to
enter the access code.
3. Press the OK button while CH & DHW
Settings iconis highlighted.
4. Press the DOWN button to highlight the
Boiler Settings icon then press the OK
button.
5. Press the DOWN button to highlight
Lockout Temperature then press the OK
button.
6. Press the UP button to highlight 102ºF
[39ºC] then press the OK button.
8. Initiate a CH or DHW call and confirm that
a High Boiler Temperature lockout occurs
once the supply temperature reaches 102ºF
[39ºC].
9. Press any ARROW button to return to the
Home Screen.
10. Press the round INSTALLER button.
11. Press the OK button while the CH & DHW
Settings iconis highlighted.
12. Press the DOWN button to highlight the
Boiler Settings iconthen press the OK
button.
13. Press the DOWN button to highlight
Lockout Temperature, then press the OK
button.
14. Press the DOWN button to highlight 210ºF
[99ºC] then press the OK button.
15. Press the DOWN button twice to highlight
the Home Screen iconthen press the
OK button.
16. Press the OK button to reset the lockout
and return the unit to service.
7. Press the DOWN button twice to highlight
the Home Screen iconthen press the
OK button.
60
664A0100 - Rev. A
11.0Start-Up Procedures
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING
If you do not follow these instructions exactly, a fire or explosion may
result causing property damage, personal injury or loss of life.
A. This appliance does not have a pilot. It is
equipped with an ignition device which automatically lights the burner. DO NOT try to light the
burner by hand.
B. BEFORE OPERATING, smell all around the
appliance area for gas. Be sure to smell next to
the floor because some gas is heavier than air and
will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use
any phone in your building
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
OPERATING INSTRUCTIONS
1. STOP! Read the safety information above. This
appliance is equipped with an ignition device
which automatically lights the burner. DO NOT
try to light the burner by hand.
2. Set room thermostat(s) to lowest setting. Turn the
external manual gas valve handle clockwise
“CLOSE” (valve handle shall be perpen-
dicular to gas piping).
3. Turn the service switch on the PRESTIGE control panel OFF.
4. Remove the front jacket panel on the unit.
5. Turn the external manual gas valve handle
counter clockwise to “OPEN” gas supply (valve handle shall be parallel to gas piping).
6. Wait five (5) minutes to clear out any gas. If you
then smell gas in the jacket enclosure or around
the unit, STOP! Follow “B” in the safety information above. If you don’t smell gas, go to the
next step.
• If you cannot reach your gas supplier, call the
fire department.
C. Use only your hand to turn the external manual gas
valve. Never use tools. If the valve will not turn by
hand, don’t try to repair it; call a qualified service
technician. Force or attempted repair may result in
a fire or explosion.
D. Do not use this appliance if any part has been
under water. Immediately call a qualified service
technician to inspect the appliance and to replace
any part of the control system and any gas control
which has been under water.
7. Turn the service switch on the PRESTIGE control panel “ON”.
8. Set room thermostat(s) to desired setting(s).
9. The PRESTIGE control panel display will show
the current operating status on the Status Line at
the bottom of the screen. “Standby” means there is
no call for heat (all thermostats are satisfied). “CH
Demand” indicates a space heating call has been
received. “DHW Demand” indicates a domestic
hot water call has been received. A flame icon will
be displayed when the unit is fired.
10. If the unit will not operate with a call for heat and the
system piping is not hot, follow the instructions “To
Turn Off Gas to Appliance”, below and call your
service technician or gas supplier.
11. Replace the front jacket panel. Make sure the panel is
seated firmly in place and all mounting screws are
tightened.
TO TURN OFF GAS TO APPLIANCE
1. Set the room thermostat to lowest setting.
2. Turn the service switch on the PRESTIGE control panel to “OFF”
664A0100 - Rev. A
3. Turn the external manual gas valve handle clockwise to “CLOSE”.
61
12.0Outdoor Reset Control
SECTION XII - OUTDOOR RESET
CONTROL
The use of the outdoor reset function is
required to optimize boiler efficiency, see
notice below. If the outdoor sensor is not
installed before turning on the boiler, an
Outdoor Sensor Open error (E96) will be displayed. The error will not prevent the boiler
from operating. The error will automatically
reset once the outdoor sensor is installed or if
the outdoor reset function is disabled.
Reference ACVMax Operation - EZ Setup section for information on disabling the outdoor
reset function. The outdoor reset function can
only be disabled if the boiler installation meets
one of the exceptions listed in the notice.
12.1Mounting the Outdoor Sensor
1. The exterior wall selected for mounting the
outdoor sensor should represent the heat
load of the building. Typically a northern
or northeastern wall will suit most buildings. A southern facing wall for those
buildings, which may have large glass
walls or windows on the southern face.
2. Ensure the outdoor sensor is shielded from
direct sunlight or the effects of heat or cold
from other sources (exhaust fans, appliance
vents...) to prevent false temperature sensing.
3. Mount the outdoor sensor at an elevation
on the exterior wall to prevent accidental
damage or tampering.
4. Avoid mounting the outdoor sensor in areas
subjected to excessive moisture.
5. Once an area on the exterior wall has been
determined, follow the mounting instructions included with the outdoor sensor.
12.2Wiring the Sensor
1. Connect 18 AWG 2-wire cable or similar
cable to the outdoor sensor.
2. Route the cable back to the PRESTIGE
Solo boiler, ensuring the wires are not run
parallel to telephone or power cables.
NOTICE
If the sensor wires are located in an area
with sources of potential electromagnetic
interference (EMI) the sensor wires
should be shielded or the wires should be
routed in a grounded metal conduit. If
using shielded cable, the shielding
should be connected to the common
ground of the unit.
3. Connect the outdoor sensor wires to the outdoor sensor terminals on the low voltage terminal strip located on the boiler control
module inside the enclosure (see Fig. 15 on
page 29 and Fig. 17 on page 31). The outdoor sensor wires do not have polarity.
IMPORTANT
In accordance with Section 325 (f) (3) of the Energy Policy and Conservation Act, this boiler
is equipped with a feature that saves energy by reducing the boiler water temperature as the
heating load decreases. This feature is equipped with an override which is provided primarily
to permit the use of an external energy management system that serves the same function.
THIS OVERRIDE MUST NOT BE USED UNLESS AT LEAST ONE OF THE FOLLOWING CONDITIONS IS TRUE.
• An external energy management system is installed that reduces the boiler water temperature as the heating load decreases.
• This boiler is not used for any space heating
• This boiler is part of a modular or multiple boiler system having a total input of
300,000 BTU/hr or greater.
• This boiler is equipped with a tankless coil.
62
664A0100 - Rev. A
13.0External Modulating Control
SECTION XIII - EXTERNAL
MODULATING CONTROL
The boiler can directly accept an analog 0-10
VDC signal to control the firing rate from an
external modulating boiler controller.
13.1Wiring the Modulating Controller
Run two 18 gauge wires from the external
modulating boiler controller’s 0-10 VDC boiler
output to the modulation signal terminals on
the low voltage terminal strip located on the
boiler control module inside the enclosure (see
Fig. 15 on page 29 and Fig. 17 on page 31).
This signal will both enable and modulate the
boiler. No wiring is required at the thermostat
terminals.
NOTICE
Ensure that the polarity of the connections from the external modulating boiler controller to the boiler are correct.
Reversed polarity will lead to no
response from the boiler.
13.2ACVMax Adjustment
The ACVMax control must be programmed to
accept the 0-10 VDC signal from the external
modulating boiler control.
1. Use the Heating EZ Setup function to set
the CH Demand to 0-10V Modulation
Signal. Reference page 46 for the Heating
EZ Setup function.
13.3Programming of External
Modulating Control
The external modulating control must be programmed to send 2 VDC to enable the boiler
and run it at low fire, and 10 VDC to run the
boiler at high fire. Once the control enables the
boiler, it must wait 30 seconds to allow the burner to stabilize before modulating the boiler.
Test high temperature limit as outlined on
page 62.
NOTICE
Perform the following check-out procedures as outlined and check off items as
completed. When procedures are completed, the installer should complete the
installation record on page 68.
c Boiler system fluid chemistry checked and
verified as outlined on page 56.
c Boiler system was completely flushed to
remove any debris/sediment.
c Any automatic air vents placed within the
system are open one full turn.
c Air is purged from the heating zones and
boiler system piping.
c If applicable, confirm that the burner has
been properly configured for Propane as
outlined on page 28.
c Thermostat circuit wiring checked and ver-
ified that no voltage is present to the low
voltage terminals as outlined on page 58.
c Checked the incoming gas pressure to the
PRESTIGE Solo to ensure a minimum
pressure of 5”w.c during flow conditions to
all gas appliances and a maximum pressure
of 13”w.c during non-flow conditions for
Natural and Propane.
c Adjusted balancing valves and system limit
controls to provide design temperatures to
the primary space heating system.
c In multiple zone applications, adjusted for
correct flow of boiler water to each zone.
c Checked and verified room thermostat(s)
function properly and the thermostat(s)
heat anticipator (if used) was properly set.
c Observed several operating cycles for
proper operation of the PRESTIGE
Excellence and the system.
c Set the room thermostat(s) to the desired
room temperature.
c Reviewed all instructions shipped with the
PRESTIGE Excellence with the homeowner or maintenance personnel.
c Operating Instructions on page 63 were fol-
lowed during start-up.
c Combustion levels and flame pattern veri-
fied as outlined on page 60.
c Measured the rate of input on Natural Gas
as outlined on page 61.
664A0100 - Rev. A
c Completed the Installation Record on page
68.
c Ensure all manuals and other documents
are returned to the Installation envelope
and given to the owner for safekeeping.
65
15.0Installation Record
PRESTIGE Model Number:
Serial Number:
Date of Installation:
Fuel: Natural Gas Propane
Measured Rate of Input:
Combustion Readings:
CO
2
O2
CO
The following items were completed during installation:
Installation instructions have been followed and completed
Check-out procedures have been followed and completed
Information regarding the unit and installation received and left with owner / maintenance personnel.
At least on an annual basis the following maintenance should be performed by a qualified service technician:
General
- Attend to any reported problems.
- Inspect the interior of the boiler jacket area;
clean and vacuum if necessary.
- Clean the condensate drain assembly and
fill with fresh water.
- Check boiler fluid pH on systems.
- Check for leaks: water, gas, flue and condensate.
- Verify flue vent piping/gaskets and air inlet
piping are in good condition, sealed tight
and properly supported.
- Check boiler water pressure, piping and
expansion tank.
16.2Owner Maintenance
Periodically:
- Check the area around the unit.
- Check and remove any blockage from the
combustion air inlet and ventilation openings.
- Check the temperature and pressure
gauges.
Monthly:
- Check vent piping.
- Check combustion air inlet piping.
- Check the pressure relief valve.
- Check the condensate drain system.
Every 6 months:
- Check boiler piping and gas supply piping
for corrosion or potential signs of leakage.
- Operate the pressure relief valve.
- Check control settings.
- Check ignition electrode (sand off any
white oxide; clean and reposition).
- Check ignition wiring and ground wiring.
- Check all control wiring and connections.
- Check burner flame pattern (stable and uniform).
Additional items if combustion or performance
is poor:
- Clean heat exchanger and flue ways.
- Remove burner assembly and clean burner
head using compressed air only.
Once the maintenance items are completed,
review the service with the owner.
WARNING
Follow the maintenance procedures
given throughout this manual. Failure
to perform the service and maintenance
or follow the directions in this manual
could result in damage to the PRESTIGE Excellence or in system components, resulting in severe personal
injury, death or substantial property
damage.
664A0100 - Rev. A
67
17.0Maintenance Procedures
SECTION XVII- MAINTENANCE
PROCEDURES
17.1Maintenance Procedures
WARNING
The PRESTIGE Excellence should be
inspected and serviced annually, preferably at the start of the heating season, by
a qualified service technician. In addition, the maintenance and care of the
unit as outlined on page 67 and further
explained on pages 68 through 73 should
be performed to assure maximum efficiency and reliability of the unit. Failure
to service and maintain the PRESTIGE
Excellence and the system components
could result in equipment failure, causing possible severe personal injury,
death or substantial property damage.
Verify that combustion air inlet area is free of
any contaminates. Refer to the materials listed
on page 5 of this manual. If any of these products are in the area from which the unit takes its
combustion air, they must be removed immediately or the combustion air intake must be relocated to another area.
17.4Inspect Burner Area
Remove the boiler front jacket panel and venturi inlet elbow.
Vacuum any dirt or debris from the
burner/blower components.
Check the burner plate mounting nuts for tightness,
see Section 17.24 on page 73 for torque specification.
Check burner plate gasket for discoloration or
damage.
Re-install venturi inlet elbow and front jacket
panel when completed.
NOTICE
The following information provides
detailed instruction for completing the
maintenance items outline in the maintenance schedule on page 67. In addition
to this maintenance, the PRESTIGE
Excellence should be serviced at the
beginning of the heating season by a
qualified service technician.
17.2Reported Problems
Any problems reported by the owner should be
checked, verified and corrected before proceeding with any maintenance procedures.
17.3Check Surrounding Area
Verify that the area surrounding the PRESTIGE Excellence is free of combustible /
flammable materials or flammable vapors or
liquids. Remove immediately if found.
WARNING
Do not use solvents to clean any of the
burner components. The components
could be damaged, resulting in unreliable or unsafe operation.
17.5Check System Piping
Inspect all piping (water and gas) on the boiler
system for leaks and verify that the piping is
leak free and properly supported.
Inspect the fittings and components on the unit
and verify they are leak free.
WARNING
Eliminate all boiler water system leaks.
Continual fresh make-up water will
reduce the heat exchanger life causing
boiler failure. Leaking water may also
cause severe property damage to the surrounding area. Inspect the gas supply
piping using the procedure outlined on
Page 60.
68
664A0100 - Rev. A
17.0Maintenance Procedures
17.6Clean Condensate Drain
Assembly
Loosen the retaining nut from the condensate
drain assembly and disconnect the assembly
from the boiler.
Empty any water from the trap and drain
assembly. Flush with fresh water as necessary
to clean.
Check the drain piping from the condensate
drain assembly to the drain. Flush to clean as
necessary.
Reassemble the condensate drain assembly
onto the boiler by tightening the retaining nut
with rubber seal onto the boiler. Hand tight
only.
Remove the fill plug on the condensate drain
assembly and fill with water. See Fig. 11 on
page 23.
Replace the fill plug on drain assembly.
17.7Check Ventilation Air Openings
Verify that all ventilation openings to the
mechanical room or building are open and
unobstructed. Check the operation and wiring
of any automatic ventilation dampers.
Check and verify the vent discharge and the
combustion air intake are free of debris and
obstructions.
WARNING
Failure to inspect the vent system and
combustion air inlet piping and to have
any conditions repaired, can result in
severe personal injury or death.
17.9Check Boiler System
Verify all system components are correctly
installed and operating properly.
Check the cold fill pressure for the system, typical cold water fill pressure is 12 psig.
Verify the system pressure, as the unit operates at
high temperature, to ensure the pressure does not
exceed 25 psig. Excessive pressure reading indicates expansion tank sizing is incorrect or system
performance problems.
Inspect air vent and air separators in the system. Remove the caps on automatic air vents
and briefly depress the valve stem to flush
vent. Replace the cap when completed. Ensure
vents do not leak, replace any leaking vents.
Verify boiler fluid pH level is between 6.0 and
8.0.
Check and verify inhibitor /antifreeze concentration within the boiler water meets
inhibitor/antifreeze manufacturer’s specifications.
If necessary contact a boiler water treatment
company for a chemical analysis.
17.8Inspect Vent and Combustion Air
Piping
Visually inspect the venting system and combustion air piping for blockage, deterioration
of gaskets or leakage. Repair any deficiencies.
Verify that the combustion air inlet piping is
connected, sealed and properly supported.
664A0100 - Rev. A
69
17.0Maintenance Procedures
17.10 Check Expansion Tank
Refer to Section IV - Boiler Piping for recommended location of the expansion tank
and air eliminators.
Closed -Type Tank:
- Ensure tank is partially filled with
water leaving an air gap as a cushion.
Refer to the manufacturer’s instruction
for proper fill level.
- Ensure the tank is fitted with a device
that reduces gravity circulation of airsaturated tank water back into the system. This device prevents air from
bubbling up through the water as it
returns from the system.
- Ensure no automatic air vents are used
in the system. This will allow air to
escape from the system instead of
returning to the tank.
Diaphragm Tank:
- Ensure the system contains a minimum of
one automatic air vent. Recommended
location of the air vent should be atop an
air eliminator.
- Remove the tank from the system and
check the charge pressure. For residential applications the charge pressure is
typically 12 psig. If tank does not hold
a charge pressure, then the membrane is
damaged and the tank should be
replaced.
WARNING
Before manually operating the pressure
relief valve, ensure the discharge piping is
directed to a suitable place of disposal to
avoid a potential scald hazard. The discharge piping must be full size without
restriction and installed to permit complete drainage of both the valve and line.
If after closing the valve, the valve fails to seat
properly or continually weeps, replace the
relief valve. Ensure the cause of the relief
valve to weep is the valve itself, not due to system over-pressurization caused by an expansion tank that is waterlogged or undersized.
17.12 Inspection of Ignitor
Remove the ignitor from the burner mounting
plate.
Remove any white oxides accumulated on the
ignitor using fine grit sandpaper or steel wool. If
the ignitor does not clean to a satisfactory condition, replace the ignitor .
When replacing the ignitor, ensure the gasket is
in good condition and correctly positioned.
Replace the gasket if necessary. Torque screws
to specification in Section 17.24 on page 73.
17.13 Check Ignition Wiring and
Ground Wiring
17.11 Check Boiler Relief Valve
Inspect the relief valve and lift the lever to verify flow at least annually or as recommended
on the warning tag of the valve.
Inspect the ignition cable from the ignitor to
the ACVMax control module.
Inspect the ground wire from the ignitor to the
boiler jacket ground terminals.
Ensure wiring is in good condition and securely connected.
Check ground continuity of the wiring to the
boiler jacket or piping using a continuity meter.
Replace and correct ground wire if ground continuity is not completed and satisfactory.
70
664A0100 - Rev. A
17.0Maintenance Procedures
17.14 Check Control Wiring
Inspect all control wiring. Ensure wiring is in
good condition and properly connected.
17.15 Check Control Settings
Review all boiler settings in the Heating &
DHW EZ Setup menus. Adjust settings as necessary, see page 44-47
Check any external limit control settings (if
used). Adjust settings as necessary.
17.16 Perform Start-up and Checkout
Procedures
Start the unit and perform the start-up procedure as listed in this manual.
Verify the cold water fill pressure is correct and
the operating pressure of the boiler is within
normal operating range.
Complete the checkout procedures as referenced in this manual.
Carefully remove the burner plate assembly
from the heat exchanger. Ensure that the combustion chamber 2-in-1 insulation is not damaged during removal of burner mounting plate
assembly. See WARNING on page 73.
Remove the burner head mounting screws and
remove the burner head. Inspect the burner
head for deterioration. Use compressed air or
a vacuum to clean the burner head.
Remove the venturi and gas valve assembly
from the blower.
Use a vacuum cleaner or compressed air to
clean the interior of the blower assembly.
Inspect the blower blades to ensure they are
clean and not damaged.
Re-assemble the venturi and gas valve onto the
blower. Ensure the venturi gasket or o-ring is
in good condition, positioned correctly and
replace gasket or o-ring if necessary.
Re-assemble the burner head onto the burner
mounting plate. Ensure the burner head gasket
is in good condition, positioned correctly and
replace gasket if necessary.
17.17 Check Burner Flame
Inspect the burner flame through the observation port on the heat exchanger.
If flame pattern is not fully blue and covers the
entire burner surface during high fire, shut the
unit down and allow it to cool thoroughly before
disassembly.
Close the external manual gas valve on the gas
supply line and disconnect the gas piping and
gas valve wire harness connector.
Disconnect the wiring harness connectors from
the blower and remove the blower clamp.
Remove the blower from the unit.
Remove the mounting nuts securing the burner
plate to the heat exchanger and set aside.
664A0100 - Rev. A
Re-assemble the burner plate assembly onto
the heat exchanger. Ensure the combustion
chamber 2-in-1 insulation is in place, positioned correctly, and not damaged, replace if
necessary. See WARNING on page 73.
Re-assemble the blower onto the burner plate
and reconnect the wiring harness connectors.
Re-assemble the gas supply connection and
wire harness to gas valve. Open the external
manual gas valve. Check gas piping for any
leaks as outlined on page 56 and repair if necessary.
Torque all screws, bolts, and nuts in accordance with specifications in Section 17.24 on
page 73.
Place the unit back into service.
71
17.0Maintenance Procedures
17.18 Check Flame Signal
The flame signal can be read from the Boiler
Information screen. It should be a min. 1μ Α
−DC.
Check the ignitor for fouling or damaged
insulation if a low flame signal is read.
Check ground wiring and continuity as a cause
for low flame signal. Replace ignitor if conditions are satisfactory.
17.19 Check Combustion Levels
Refer to page 58 of this manual for measuring
combustion levels and burner adjustments.
17.20 Check Flue Gas Temperature
Manually place the boiler into high fire. See
page 58 for procedure.
Navigate to the Boiler Information Menu to
observe the flue gas temperature. See page 48
for procedure.
If the flue gas temperature is more than 54°F
[30°C] above the supply water temperature, shut
the boiler down and follow the heat exchanger
cleaning procedure below.
Disconnect the wiring harness connectors from
the blower and remove the blower clamp.
Remove the blower from the unit.
Remove the mounting nuts securing the burner
plate to the heat exchanger and set aside.
Carefully remove the burner plate assembly
from the heat exchanger. Ensure that the combustion chamber 2-in-1 insulation is not damaged during removal of burner mounting plate
assembly. See WARNING on page 73.
Use compressed air or water to remove any
accumulation from the heat exchanger flue
ways.
Re-assemble the burner plate assembly onto
the heat exchanger. Ensure the combustion
chamber 2-in-1 insulation is in place, positioned correctly, and not damaged, replace if
necessary. See WARNING on page 73.
Re-assemble the blower onto the burner plate
and reconnect the wiring harness connectors.
Reconnect the gas piping and wire harness to
gas valve. Check for leaks, repair if necessary.
Torque all screws, bolts, and nuts in accordance with specifications in Section 17.24 on
page 73.
17.21 Clean Heat Exchanger
Shut down the boiler:
- Follow the instructions on Page 61 "To
Turn Off Gas to Appliance"
- Do not drain the boiler unless the boiler
will be subject to freezing conditions.
- Do not drain the boiler if freeze protection fluid is used in the system.
Allow the boiler to cool down to room temperature before servicing.
Disconnect the gas piping and gas valve wire
harness connector.
Close isolation valves on the boiler water piping to isolate the boiler from the heating system.
Attach a hose to the boiler drain valve and
flush the boiler thoroughly with fresh water by
using the purge valves to allow water to enter
through the make-up water line to the boiler.
Once the boiler has been completely flushed,
return the boiler and system piping back to
operation.
Perform the required startup and checkout procedures as outlined on pages in Section X.
72
664A0100 - Rev. A
17.0Maintenance Procedures
17.22 Review With Owner
Ensure the owner understands the importance
to perform the maintenance schedule specified
in this manual.
WARNING
The combustion chamber insulation con-
tains ceramic fibers, which are classified
as a possible human carcinogen. When
exposed to extremely high temperatures,
Remind the owner of the importance to call a
licensed contractor should the unit or system
exhibit any unusual behavior.
the ceramic fibers, which contain crystalline silica, can be converted into
cristobalite.
When removing or repairing the combustion
chamber insulation follow these precaution
measures:
1. Use a NIOSH approved respirator which
meets OSHA requirements for cristobalite
dust, similar to N95. Contact NIOSH at
1-800-356-4676 or on the web at
www.cdc.gov/niosh for latest recommendations.
6. Discard used insulation in an air tight
plastic bag.
NIOSH Stated First Aid:
Eye/Skin: Immediately irrigate
Breathing: Clean fresh air
2. Wear long sleeved, loose fitting clothing,
gloves and eyes protection.
3. Assure adequate ventilation.
4. Wash with soap and water after contact.
5. Wash potentially contaminated clothes
separately from other laundry and rinse
washing machine thoroughly.
17.24 Torque Specifications Table
Item
Burner Plate Nuts
Burner Head Bolts
Fan Clamp Screw
Gas Valve Screws
Venturi Screws
Ignitor Screws
664A0100 - Rev. A
Torque Req'd (in-lbs)
Min.Max.
4453
26.531
6271
3135
3135
26.531
73
18.0Product Specifications
SECTION XVIII PRODUCT SPECIFICATIONS
Boiler
Model
Excellence
Note 1: The heating capacity of the PRESTIGE
Note 2: The AHRI rating is based on a piping and
Note 3: Based on the given AFUE the PRESTIGE
FuelInput
Natural
Propane
Excellence is based on the test requirements
of the U.S. Department of Energy.
pick up allowance of 1.15. This allowance
should be sufficient for the standard radiation
requirements for a building load.
Excellence meets the energy efficiency
guidelines established by Energy Star.
110,00099,00086,00095%250 / 115
DOE
Heating Capacity
Net AHRI
Rating
Note 4: Input and output ratings are shown for sea
level applications. The PRESTIGE
Excellence automatically derates the input at
approximately 2% for every 1,000 Ft. of altitude. No alterations to the boiler or burner
system is required.
* I N S T A L L A T I O N A N D M A I N T E N A N C E *
* I N S T A L L A T I O N A N D M A I N T E N A N C E *
M A N U A L
M A N U A L
WARNING
IMPORTANT
7/13/16
• Before proceeding with installation and operation, read entire manual carefully. Failure to do so can cause injury or property damage.
• When receiving the PRESTIGE Excellence, any claims for damage or
shortage in shipment must be filed immediately against the transportation company by the consignee.
• Warranty Registration Card must be filled out by the customer and mailed
within thirty (30) days of installation in order to gain warranty coverage.
• Retain and affix this manual near the water heater for future reference
• Installation and service should only be performed by a qualified installer or
service technician.
• Installations and service should be performed by a license plumber or gas
fitter in the Commonwealth of Massachusetts.
The following terms are used throughout this manual to bring attention to the presence of potential
hazards or important information concerning the product.
DANGER
Indicates the presence of a hazardous situation which, if ignored, will result in death,
serious injury or substantial property
damage.
WARNING
Indicates a potentially hazardous situation
which, if ignored, can result in death, serious injury or substantial property damage.
CAUTION
Indicates a potentially hazardous situation
which, if ignored, may result in minor
injury or property damage.
NOTICE
Indicates special instructions on installation, operation or maintenance, which are
important to equipment but not related to
personal injury hazards.
BEST PRACTICE
Indicates recommendations made by ACVTriangle Tube for the installers which will
help to ensure optimum operation and
longevity of the equipment
WARNING
ACV-Triangle Tube accepts no liability for any damage, injury or loss of life resulting from incorrect
installation, from alteration of any factory supplied parts or from the use of parts or fittings not specified by ACV-Triangle Tube. If there is a conflict or doubt about the proper installation of the unit or
any factory supplied or replacement parts please contact ACV-Triangle Tube Technical Support.
NOTICE
ACV-Triangle Tube reserves the right to modify the technical specifications and components of its
products without prior notice.
1
664A0300 - Rev. B
Product & Safety Information
WARNINGCAUTION
Bacteria can develop in the domestic water
system if certain minimum water temperatures are not maintained.
Protection must be taken against excessive temperature and pressure!
TO PROTECT AGAINST EXCESSIVE
TEMPERATURE AND PRESSURE
DANGER
HOT WATER CAN SCALD!
Water temperature over 125ºF [52ºC] can
cause severe burns instantly or death from
scalds.
• Children, disabled and elderly are at highest
risk of being scalded.
- Never leave them unattended in or
near shower, bathtub or sink.
- Never allow small children to use a hot
water faucet or draw their own bath.
• To avoid any potential scald hazard or if
codes require specific water temperatures at
the hot water faucet, the installer must:
- Install the factory supplied thermostatic
mixing valve at this appliance and ensure it
is working property
and
• Check if the Temperature & Pressure
(T&P) relief valve is installed in the location provided (DHW Side).
• Check if the 30 psi relief valve supplied
is installed in the location provided (CH
Side)
• To avoid injury, install the relief devices
to comply with local code requirements.
- Set the domestic storage temperature to the
lowest temperature which satisfies your
hot water needs.
- Feel and adjust water temperature before
bathing or showering.
- Water drained from the system drain
valves may be extremely hot.
TO AVOID INJURY:
- Make sure all connections are tight.
- Direct water flow away from any person.
664A0300 - Rev. B
CAUTION
To prevent damage to the inner tank, the
Installer must:
• Always fill inner tank prior to outer
tank and always drain outer tank prior
to inner tank.
• Relieve primary system pressure
below 15 psig prior to draining inner
tank.
2
Pre-Installation
Codes Compliance
Installation of the Excellence Water Heater must
conform with the instructions in this manual and
where applicable:
• local, state, provincial, and national codes,
laws, regulations and ordinances.
• in Canada - CAN / CGA B149.1 or B149.2
Installation Code.
Excellence water heater is exempt from ASME
Section VIII, Division 1 Code construction per
Interpretation VIII-86-136. Check with local codes
for applicability.
NOTICE
The Excellence water heater will absorb less
than 200,000 BTU/hr when domestic water
outlet temperature is 194ºF and boiler water
supply temperature is 240ºF. Listed outputs
are based on ASME Section VIII
Interpretation VIII-1-86-136.
Where recommendations in this manual differ
from local, or national codes, the local or national
codes take precedence.
Codes Restrictions
Single wall heat exchanger in the Excellence water
heater complies with National Standard Plumbing
Code, provided that:
– boiler water (including additives) is practically
non-toxic, having toxicity rating or class of 1,
as listed in Clinical Toxicology of Commercial
Products, and
– boiler water pressure is limited to maximum
30 psig by approved relief valve.
Single wall heat exchangers are permitted under the
Uniform Plumbing Code - Paragraph L3.2. and L3.3
if they satisfy all of the following requirements.
2. The pressure of the heat transfer medium is
maintained less than the normal minimum
operating pressure of the potable water system
Exception: Steam complying with sec-
tion #1 above.
3. The equipment is permanently labeled to
indicate that only additives recognized as
safe by the FDA shall be used in the heat
transfer medium.
Other heat exchanger designs may be permitted
where approved by the Administrative Authority.
Operating Restrictions
• Maximum DHW outlet temperature is
120ºF, when factory supplied mixing valve
is installed.
• Maximum boiler water temperature rating
is 210ºF.
• Maximum working pressure for inner
(domestic water) tank is 150 psig.
• Maximum working pressure for outer
(boiler water) tank is 30 psig.
• Water quality limitations (based on E.P.A
National Secondary Drinking Water
Regulations):
- Chloride, less than 150 ppm or mg/l
- pH value min. 6, max. 8
- Total hardness 3 - 7 grains/gallon or 50-120
ppm or mg/l.
- Total Dissolved Solids (TDS), less than
120 ppm or mg/l.
- Iron less than 0.3 ppm or mg/l.
- Aluminum, less than 0.2 ppm or mg/l.
- Copper, less than 1 ppm or mg/l.
- Manganese, less than 0.05 ppm or mg/l.
- Zinc, less than 5 ppm or mg/l.
1. The heat transfer medium is potable water or
contains only substances which are recognized as safe by the U.S. Food and Drug
Administration.
3
664A0300 - Rev. B
Pre-Installation
BEST PRACTICE
In hard water areas (more than 7 grains of
hardness) soften the cold domestic supply
water to the appliance to prevent scaling.
NOTICE
Any water conditioning system must be
installed and maintained in accordance with
manufacturer’s specifications.
NOTICE
Do not install the Excellence water heater on
any application if the boiler piping contains
non-oxygen barrier tubing or if the boiler
piping is considered an “open system”.
Exposing the outer tank of the Excellence
water heater to oxygen contamination will
lead to premature tank failure and denial of
the warranty.
Locating Water Heater
• The Excellence is not intended for outdoor
installations.
• Locate Excellence so that any leakage from the
tank or water connections will not cause damage to the area adjoining the water heater or to
lower floors in the structure.
BEST PRACTICE
To provide serviceability to the unit it is recommended that the following clearances be
maintained:
Top boiler jacket - 24 inches.
Front - 24 inches.
Bottom boiler piping - 24 inches.
Rear - 0 inches
Sides - 6 inches
NOTICE
When maintaining zero clearance or less
than recommended clearances, some product labeling may become hidden and
unreadable
WARNING
When installing the Excellence in a confined
space, sufficient air must be provided for
proper combustion and venting and to
allow, under normal operating conditions,
proper air flow around the product to maintain ambient temperatures within safe limits
to comply with the National Fuel Gas Code
NFPA 54 - latest edition. Reference the
Excellence Boiler Manual for additional
guidelines.
- When such a loation is unavoidable, a suitable
drain pan with adequate drainage should be
placed under the water heater.
Recommended Clearances
The Excellence is approved for zero clearance to
combustibles, excluding vent and boiler piping.
- Vent & Boiler Piping - 1/4 inch from com-
bustible materials.
664A0300 - Rev. B
Residential Garage Installations
When installing the Excellence in a residential
garage, the following special precautions per NFPA
54/ANSI Z223.1 must be taken:
- Mount the unit with a minimum 18 inches
above the floor level of the garage. Ensure
the burner and ignition devices / controls
are no less than 18 inches above the floor
level.
- Locate or protect the unit in a matter so it
cannot be damaged by a moving vehicle.
4
Installation - Domestic Piping
Temperature & Pressure (T&P) Relief Valve
CAUTION
To reduce risk of excessive pressures and temperatures in the water heater, install temperature and pressure protective equipment
required by local codes, but no less than a combination temperature and pressure relief valve
certified by a nationally recognized testing laboratory that maintains periodic inspection of
production of listed equipment or materials, as
meeting the requirements for Relief Valves and
Automatic Gas Shutoff Devices for Hot Water
Supply Systems, ANSI Z21.22. This valve must
be marked with a maximum working pressure
of the water heater.
• The Excellence water heater must be protected
with a T&P relief valve.
• Size the Excellence T&P relief valve by the
following specifications, unless they conflict
with local codes: 3/4” NPT with an AGA
Rating of 100,000 BTU/hr (Watts 100XL-8 or
equivalent).
• Install the T&P in the run (straight through leg)
of a tee located at the domestic hot water outlet. Use a long element T&P relief valve, as
shown in Fig. 3 page 8.
T&P Relief Valve Discharge Piping
T&P relief valve discharge piping must be:
- made of material serviceable for temperatures of 250ºF or greater.
- directed so that hot water flows away from
all persons.
- directed to a suitable place for disposal.
- installed so as to allow complete draining
of the T&P relief valve and discharge line.
T&P relief valve discharge piping must not
be:
- excessively long. Using more than 2
elbows or 15 feet of piping can reduce discharge capacity.
- directly connected to a drain. Terminate
discharge piping within 6” from drain.
Refer to local codes.
- plugged, reduced or restricted.
- subject to freezing.
NOTICE
For proper operation of the T&P and to pre-
vent the T&P from activating due to boiler
water temperature, use a T&P relief valve
with extended element. A 8” minimum
length is recommended.
Standard Installation
• Install T&P relief valve in the Auxiliary con-
nection located near the air vent on the top of
the water heater as shown Fig. 2 page 8.
Commonwealth of Massachusetts
Installation
Follow this procedure for jurisdictions requiring a
vacuum breaker to be installed on the domestic
cold water inlet.
WARNING
Do not install any valve between T&P relief
valve and tank connection or on T&P relief
valve discharge piping. Do not plug T&P
relief valve or discharge piping. Improper
placement and piping of T&P relief valve
can cause severe personal injury, death or
substantial property damage.
664A0300 - Rev. B
5
Installation - Domestic Piping
Drain Valve
Drain valve and fittings are supplied by others.
Standard Installation
• Install a tee connection at the domestic cold
water inlet, as shown in Fig. 4, pages 9.
• Pipe the drain piping with drain valve from
the tee connection to:
- a suitable place for disposal
or
- terminate within 12” of the floor
Commonwealth of Massachusetts Installation
• Thread a 3/4” brass close nipple onto the
Auxiliary connection and insert an openend dip tube into the Auxiliary connection
on top of water heater. As shown in Fig. 3,
page 8.
• Install a 3/4” NPT elbow to the Auxiliary
connection.
• Pipe the drain piping with drain valve from
the elbow connection to:
- a suitable place for disposal
or
- terminate within 12” of the floor
Thermal Expansion
If a backflow preventer, check valve or pressure
reducing valve is piped on cold water supply piping
of water heater, install an expansion tank on cold
water supply line to prevent normal thermal expansion from repeatedly forcing open T&P relief valve.
CAUTION
T&P relief valve is not intended for constant
duty, such as relief of pressure due to
repeated normal system expansion. Correct
this condition by installing a properly sized
expansion tank in domestic water system.
Refer to expansion tank manufacturer’s
installation instructions for proper sizing.
Water Hammer
Dishwashers, clothes washers and fast-closing positive shut-off valves incorporated in the system all
contribute to creating water shock. Install a water
hammer arrester to prevent damage to pipes and
appliances. See device manufacturer’s instructions
for application and installation.
Manual Air Vent
1. Open manual air vent at the top of the unit.
Once air has stopped escaping, close the
manual air vent.
2. Once the system is completely filled and
purged of all air and sediment, check the
system pressure and check/repair any leaks.
664A0300 - Rev. B
NOTICE
Water hammering within the domestic piping system can cause premature failure of
the inner tank of the water heater. This type
of failure is NOT covered under warranty.
Vacuum Breaker
Installing a vacuum breaker on the domestic cold
water outlet will prevent damage to the inner tank
if a negative pressure is developed in the domestic
supply line. See manufacturer’s instructions for
application and installation of the vacuum breaker.
6
Installation - Domestic Piping
C
o
l
d
H
o
t
Adapter
Check Valve
Mixed
General Piping
• For domestic water piping diagrams, see pages
9 and 10.
• All plumbing must meet or exceed all local,
state and national plumbing codes.
• Use pipe dope or tape suitable for potable
water systems.
• Use isolation valves to isolate system components.
Domestic Piping
• Union on domestic hot water outlet should be
piped at a higher elevation than domestic water
drain valve. This will make draining the water
heater easier.
• Use dielectric unions or couplings to protect
hot and cold water fittings from corrosion
when connecting dissimilar materials such as
copper and galvanized iron pipe.
• If copper pipe is used for domestic water connections, first solder pipe to a threaded adapter
and then screw adapter into cold water inlet on
top of Excellence. Cold Water Inlet contains
an internal plastic dip tube which can be damaged by heat from soldering.
For applications with a domestic recirculation
loop, the recirculation pump should be controlled
by an aquastat. The maximum recommended setting of the aquastat is 10ºF lower than the thermostatic mixing valve setting.
DANGER
For proper operation of the thermostatic
mixing valve and to prevent potential scalding hazards, the recirculation loop should
be controlled by an aquastat. DO NOT use
continuous recirculation.
Recirculation Piping
Fig. 1: Mixing Valve Assembly
NOTICE
Do not apply heat to the cold water inlet when
making sweat connections to water heater.
Sweat tubing to adapter before fitting adapter
to cold water inlet of heater. It is imperative
that no heat be applied to the cold water inlet,
as it contains a non metallic dip tube.
• When the water supply pressure is higher than
70 psig, it is recommended to install a pressure
reducing valve on cold water supply line to
prevent water loss through T&P relief valve.
Thermostatic Mixing Valve
The Excellence is factory supplied with a thermostatic mixing valve with built-in check valve. The
mixing valve must be installed as shown in Fig. 1.
The operating range of the thermostatic mixing is
85ºF [30ºC] to 150ºF [65ºC].
• Recirculation piping must be installed in the
cold water inlet as shown Fig. 5, page 9.
• A stainless steel or bronze circulator is recommended.
Storage Tank Application
For applications requiring large volumes of domestic hot water in a short time period, the installer may
include a storage type tank (see Fig. 6 page 10) in
the domestic piping.
The installer must:
1. Relocate the thermostatic mixing valve from
the Excellence to the outlet of the storage tank.
2. Provide recirculation from the storage tank
back to the Excellence using a bronze type
circulator. Maximum recommended recirculation flow rate is 1 gpm.
664A0300 - Rev. B
7
Installation - Domestic Piping
DHW Hot
Water Outlet
DHW Cold Water
Inlet
Manual Air Vent
DHW Aux. Connection
(T&P Relief Valve)
DHW Hot
Water Outlet
DHW Cold Water
Inlet
Air Vent Connection
DHW Aux. Connection
T&P Relief
Valve w/ 3/4”
Tee
Drain
Dip Tube
3/4” Brass Close
Nipple
Fig. 2: Standard Installation of the T&P Relief Valve
Fig. 3: Commonwealth of Massachusetts Installation
664A0300 - Rev. B
8
Installation - Piping Diagrams
Fig. 4:
Standard Installation Domestic Piping Excellence Series
Fig. 5:
1. Shut-off valve
2. Flow check valve
3. Mixing valve with check valve
4. Vacuum Breaker *
5. Unions
Standard Installation Domestic Piping with Optional Recirculation Excellence Series
6. Backflow preventer or pressure reducing valve(*)
7. Circulator (controlled by aquastat)
8 Domestic drain valve
9. Thermal expansion tank (potable)
(*) Optional devices may be required by local codes.
664A0300 - Rev. B
9
Installation - Piping Diagrams
Fig. 6:
1. Mixing valve with check valve
2. Flow check valve
3. Shut-off valve
4. Backflow preventer or pressure reducing valve(*)
Domestic Piping with Optional Storage Tank
6. Thermal expansion tank
7. Circulator (controlled by aquastat)
8 Domestic drain valve
9. Vacuum Breaker *
(*) Optional devices may be required by local codes.
664A0300 - Rev. B
10
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