EnerPro EPA1050 User manual

EnerPro EPA Series Boilers
EnerPro EPAW Series Water Heaters
Installation and Operation Manual
EPAW Series: Gas Water Heaters :
EPAW1050 EPAW1600 EPAW2080
1,050 MBtu 1,600 MBtu 2,080 MBtu
EPA SERIES: Gas Heating Boilers :
EPA1050 EPA1600 EPA2080
1,050 MBtu 1,600 MBtu 2,080 MBtu
WARNING
If the information in these instructions are not followed
exactly, a re or explosion may result causing property
damage, personal injury or loss of life.
WARNING
Do not store or use gasoline or other ammable vapors and
liquids in the vicinity of this or any other appliance.
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. Fallow
the gas supplier’s instructions If you can not reach your
gas supplier, call the re department.
- Installation and service must be performed by a qualied
Installer, Service agency or a gas supplier.
Important:
Read and save these instructions for future reference.
Document#:50-1000
EPA/EPAW-IOM-4/2016 RV2
Distributor:
DDR Americas Inc.
1090 Fountain Street North, Unit10
Cambridge, Ontario, N3E 1A3 Canada
Boiler may not be exactly as illustrated

WARNING
If the information in this manual is not followed exactly, a re or explosion may result. Causing property damage ,
personal Injury or loss of life
Do not store or use gasoline or other ammable liquids in the vicinity or this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
- Do not try to light any appliances.
- Do not touch any electrical switches, 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 re department.
Instruction and service must be performed by a qualied installer, Service agency or the gas supplier.
WARNING
Improper installation, adjustment, and/or Operation could cause carbon monoxide poisoning resulting
injury or loss of life. This product must be installed and serviced by a professional service tech-
nician who is experienced and qualied in hot water boiler installation and gas combustion.
WARNING
Do not use this unit if any part has been under water.
Immediately call a qualied heating contractor to inspect the unit and to replace any part of the control
system and any gas control which has been under water.
Do not store chemicals containing chlorine or other corrosive materials near the unit, such as bleach,
cleaning solvents, detergents, acids, hair spray cans, paint thinners, paint, or water softener salt.
This Boiler is equipped with high gas
pressure switch that will shut down the
unit in case of the exhaust block.
It is manual reset and need to be reset,
it is shown in the picture and need to
be rest by pushing the reset button. If
you need to re adjust or replace this
component, you need to call manufacturer,
or qualied service Technician.
Gas Valve
High Gas Pressure Switch
Reset Button
Low Gas Pressure Switch

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Contents
1.2 Lighting Instructions 5
1.3 Operation 6
1.4 Working on the equipment 6
1.5 Dangerous conditions 6
1.6 Maintenance and cleaning 6
1.7 For safe operation 6
1.8 Boiler modication and spare parts 7
1.10 Codes 8
1.11 Standards applied 8
1.12 Water pipe freezing hazard 9
1.13 Combustion sources and ventilation air contaminants 9
4. Installation 12
4.1 INTRODUCTION 12
4.3 UNPACKING 12
4.4 Installation Clearances 13
4.4.1 Technical Information 14
4.4.3 Boiler Dimensions 15
4.4.4 Boiler Technical Specications 16
4.5 Moving and Setting the Unit 17
5. GAS SUPPLY PIPING 18
5.1 Manual Gas Shuto Valve 18
TABLE OF CONTENTS

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1. SAFETY INSTRUCTIONS
1.1 Symbols
The following symbols are used in this document to emphasize certain instructions. This is in order to increase your
personal safety and to safeguard the technical reliability of the boiler.
CAUTION Indicates a potentially hazardous situation which, if ignored, may result in minor injury or product/
property damage.
WARNING Indicates a potentially hazardous situation which, if ignored, can result in danger, serious injury or
substantial product/property damage.
DANGER
Indicates the presence of a hazardous situation which, if ignored, will result in death, serious injury
or substantial product/property damage.
READ
Indicates recommendations made by EnerPro Boilers for the installers which help to ensure optimum
operation and longevity of the equipment.
Professional licensed heating
contractor
The assembly, installation, adjustment,
service and maintenance of this boiler must
be performed by a professional licensed
heating contractor.
Boiler Documentation
Make sure to read all documentation related
to the product before starting the installation.
The product documentation should be stored
near the boiler where it can be accessed
for future reference.
Advice for the owner
When the installation has been
completed, the heating contractor has to
familiarize the operator/owner with the
installed equipment as well as any safety
precautions and requirements, and shut-
down procedures. The heating contractor
also needs to inform the operator/
owner of the need for professional
annual servicing of the boiler prior to the
heating season.
Contaminated air
Chemicals can contaminate the air and
cause by-products during the combustion
process. These by-products are poisonous
to the occupants and very destructive to
EnerPro boilers.
Carbon monoxide
Flue products can ow into living spaces if
improperly installed, adjusted, serviced or
maintained. The ue gases contain carbon
monoxide which is poisonous.
Fresh air
Adequate ventilation and combustion air
must be provided for the equipment as it
requires fresh air for safe operation. Make
sure the equipment is installed ensuring an
adequate supply of fresh air.
Boiler venting
Always operate the boiler with an installed
vent system. Carbon monoxide poisoning
can be caused by an improperly installed
vent system. All combustion products must
be vented safely to the outdoors.
Note: Some products may not be exactly as illustrated.
Information contained herein is deemed as accurate as
possible. Clarication of material supply, pipe sizing,
thread type, and typographical errors should be noted
as soon as possible. Dimensions have been converted
from the Metric standard. Fractional rounding may aect
dimensional tolerances.
Warranty
The information in this manual and any other related
manuals must be read and proper procedures followed.
The warranty is rendered null and void if the procedures
are not followed as prescribed.

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TO TURN OFF GAS TO APPLIANCE
Operating Instructions
FOR YOUR SAFETY READ BEFORE OPERATING
WARNING: If you do not follow these instructions exactly, a re or explosion may result causing property damage,
personal injury or loss of life
1- STOP! Read the safety information above on this label.
2- Set thermostat or other operating control to lowest
setting.
3- Turn o all electric power to the appliance
4- This appliance is equipped with an ignition device which
automatically lights the burner. Do not try to light the
burner by hand.
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 oor because
some gas is heavier than air and will settle on the oor.
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.
. If you cannot reach your gas supplier, call the re
5- Close main gas shut-o valve.
6- Wait ve (5) minutes to clear out any gas. Then smell
for gas, including near the oor. If you smell gas,
STOP! Follow “B” in the safety information above on
this label. If you don’t smell gas, go to the next step.
7- Open main gas shut-o valve.
8- Turn on all electric Power to the appliance.
9- Set thermostat of other operating control to desired
setting.
10- If the appliance will not operate, Follow the instructions
“To Turn O Gas To Appliance” and call your service
technician or gas supplier.
1- Set thermostat or other operating control to lowest setting.
2- Turn o all electric power to the appliance if service is to be performed.
3- Close main gas shut-o Valve.
Open
Manual Gas Shut-o
Closed
1.2 Lighting Instructions
department.
C. Use only your hand to push in our turn the as control
knob. Never use tools. If the knob will not push in or
turn by hand, don’t try to repair it , call qualied service
technician. Force or attempted repair may result in a
re or explosion.
D. Do not use this appliance if any part has been under
water. Immediately call a qualied service technician
to inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.

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Before operating the boiler, make sure you fully understand
its method of operation. Your heating contractor should
always perform the initial start-up and explain the system.
Any warranty is null and void if these instructions are not
followed.
Warning
What to do if you smell ue gas
• Ensure all people are evacuated from the building
immediately
• Deactivate heating equipment.
• Open windows and doors.
• Do not try to light any appliances.
• Do not touch any electrical switches, do not use any
phone in your building.
• Immediately call your heating contractor or gas
supplier from a neighbour’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier, call the re
department.
1.4 Working on the equipment
All personnel working on the equipment or the heating
system must have the proper qualications and hold all
necessary licenses.
Ensure main power to equipment, heating system, and all
external controls has been deactivated. Close main gas
supply valve. Take precautions in all instances to avoid
accidental activation of power during service work.
1.5 Dangerous conditions
• Deactivate main power immediately.
• Close gas supply valve.
CAUTION
Incomplete combustion and poisonous gases result if
the fresh air intakes in the mechanical room are closed.
Never close these openings.
1.3 Operation 1.6 Maintenance and cleaning
Regular inspection and service by a qualied heating
contractor is critical to the performance of the boiler.
Neglected maintenance impacts the warranty; regular
cleaning and maintenance ensures clean, environmentally
friendly and ecient operation. We recommend a
maintenance contract with a qualied heating contractor.
1.7 For safe operation
We recommend that you frequently:
- Check for debris which could obstruct the ow of ue
gases. The vent or chimney must not be blocked.
A blocked or partially blocked vent or chimney can
cause ue gases to leak into the structure. Flue gases
leaking into the house can cause injury or death.
Blocked or partially blocked chimneys must have the
blockage removed by a qualied heating contractor.
- Check pressure gauge for correct system (water) pressure.
- Check for water on the oor from the discharge pipe
of the pressure relief valve or any other pipe, pipe
joint, valve or air vent.
- Check for moisture, water, or appearance of rust
on the ue gas pipes, their joints as well as vent
dampers, or side wall vent terminals (if so equipped).
- Ensure that nothing is obstructing the ow of
combustion and ventilation air and no chemicals,
propane tanks, garbage, gasoline, combustible
materials, ammable vapours and liquids are stored
(not even temporarily) in the vicinity of the boiler.
- Do not allow unsupervised children near the boiler.
- Service/inspection of the boiler and the system must
be serviced yearly. Maintenance, service and cleaning
are specied in the Installation Instructions.
- Before the heating season begins, the boiler must
be serviced by a qualied heating contractor.
Do not use this boiler if any part has been under water.
Immediately call a qualied heating contractor to inspect
the boiler and to replace any part of the control system
and any gas control which has been under water.

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Do not store chemicals containing chlorine or other corrosive
materials near the boiler, such as bleach, cleaning solvents,
detergents, acids, hair spray, spray cans, paint thinners,
paint, or water softener salt.
1.8 Boiler modication and spare parts
This boiler uses specic original manufactured parts. The
boiler must not be modied or non-OEM parts used without
the written approval from DDR Americas Inc.
1.9 Carbon monoxide
The installation of carbon monoxide detectors is highly
recommended by the U.S. Consumer Product Safety
Commission for buildings with gas burning equipment.
Sources of carbon monoxide include exhaust vents for gas
appliances or wood burning replaces that are not properly vented, malfunctioning furnaces and exhaust fumes from
idling cars.
Carbon monoxide is a colourless and odourless gas that is highly toxic. It can interfere with the delivery of oxygen by
the blood to the body. Exposure to low levels of CO can cause headaches, confusion, nausea,
dizziness, fatigue, and shortness of breath. High level exposure of CO can cause impaired vision, convulsions, coma
and possibly death. Have a qualied service technician inspect the heating equipment exhaust vent pipes and chimney
ues on a yearly basis.
In winter, inspect the exhaust vents for the dryer, furnace, wood burning or gas stove, replace and heat recovery
ventilator to ensure they are not obstructed by snow build-up.
Carbon monoxide detectors should be installed and maintained in buildings that house gas burning equipment. It is
recommended to use a carbon monoxide detector that is in compliance with a nationally recognized standard such as
ANSI/UL 2034-or CSA 6.19-01. (Current Revision)
DANGER
Improper installation, adjustment, service, or maintenance can cause ue products to ow into living space. Flue
products contain poisonous carbon monoxide gas which can cause nausea or asphyxiation resulting in severe personal
injury or loss of life.
1.10 Codes
Installation, servicing and maintenance of this product must be performed by a licensed and trained heating contractor,
experienced in hot water heating boilers as well as gas and oil combustion. The installation must conform to all national
Warning
• There are no user serviceable parts on the boiler,
burners or control. Failure to heed this warning can
cause property damage, severe personal injury, or
loss of life.
• Improper installation, adjustment, service, or
maintenance can cause ue products to ow into
living space. Flue products contain poisonous carbon
monoxide gas which can cause nausea or asphyxiation
resulting in severe personal injury or loss of life.
• Should overheating occur or the gas supply fail to
shut o, do not disconnect the electrical supply to the
pump. Instead, shut o the gas supply at a location
external to the appliance.

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and local codes having jurisdiction:
• In Canada, CSA B149.1 Gas Code (Current Revision)
• In USA, ANSI Z223.1 (NFPA 54) Gas Code, and ASME CSD-1 Automatically Fired Boilers. (Current Revision)
If you have any technical questions or need assistance with this product, please call your local Sales Representative
or EnerPro Boilers.
1.11 Standards applied
We hereby certify that the series of appliances specied hereinafter are in compliance with the current standards
described, and that they are manufactured and marketed in compliance with the requirements of the following North
American standards: (Current revision)
• ASME Section IV
• CSA B51
• ANSI Z21.13-CSA 4.9 - Gas red steam and hot water boilers.
• CAN/CGA 2.17-M91 - Gas red appliances for use at high altitude.
• CGA P.2- Testing method for measuring annual fuel eciencies or residential furnaces and boilers.
• CAN/CSA C22.2 No.0-M91 - General requirements - Canadian electrical codes part II.
• CSA C22.2 No.3-M1988 - Electrical features of fuel burning equipment.

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1.12 Water pipe freezing hazard
WARNING
Serious property damage and/or personal injury can occur
if the pipes are not protected from freezing, resulting in
the pipes bursting. The boiler may also shut down. Turn
o the water supply and drain the water pipes or protect
them from freezing when leaving the home unattended for
long periods of time during very cold weather conditions.
The boiler is designed to provide a comfortable and warm
environment and is not designed for the prevention of
frozen water pipes. In case an unsafe condition occurs,
the boiler has been designed and equipped with several
safety devices that will shut down the boiler and stop it
from restarting.
If the boiler is dormant for an extended period of time
during cold winter weather, the water pipes may freeze
and burst which can result in extensive water damage and
lead to mold growth. A variety of molds can cause serious
health and respiratory problems. If water damage should
occur, immediately dry the aected areas to avoid the
possibility of mold growth. If the building will be empty
for an extended period of time in cold winter conditions,
then the following steps should be taken:
• Turn o the building’s water supply, drain the pipes
and add some antifreeze for potable water for the
toilet tanks and drain traps.
• Open faucets where appropriate.
• Have the building monitored and checked during cold
winter weather and call a qualied service technician
if necessary.
• Remote temperature sensors are available which
will alert someone if freezing conditions occur in the
building.
1.13 Combustion sources and ventilation
air contaminants
Contaminants are likely to be found in these
areas:
• Auto body shops
• New construction
• Metal manufacturing plants
• Swimming pools
• Refrigeration repair shops
• Garages with workshops
• Furniture renishing shops
• Plastic manufacturing plants
• Hobby rooms and remodelling areas
• Dry cleaners and laundromats
• Photo processing companies
• Beauty salons
Contaminants found in various products:
• Paint and varnish removers
• Chlorinated cleaners and waxes
• Glues and cements
• Swimming pool chemicals containing chlorine
• Refrigerant leaks
• Water softener salt containing sodium chloride
• Cleaning products such as chlorine-based bleaches,
detergents and cleaning solvents
• Spray cans containing chlorouorocarbons
• Muriatic and hydrochloric acid
• Calcium chloride utilized in thawing
• Permanent wave solutions
• Adhesives utilized for building products and other
similar items
• Fabric softeners used in clothing dryers

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2.1 Start-up
Initial start-up
The heating contractor must perform the initial start-up
and explain the operation of the system. The operation of
the boiler control must also be explained to the system
operator/ultimate owner by the heating contractor. Refer
to literature packaged with boiler control.
Necessary preparations prior to initial start-up, your
contractor will:
1. Check for water on the oor from the discharge
pipe or the pressure relief valve or any other pipe
joint, valve or air vent. If pressure relief valve is
discharging, the contractor will locate the source of
the problem and take corrective measures. Never cap
or plug end of pressure relief valve discharge pipe.
Ensure correct system (water) pressure.
2. Ensure fresh combustion air supply vents to boiler room
are open and unobstructed. Nothing must obstruct the
ow of combustion and ventilation air.
3. Open main fuel supply valve.
4. Activate the system. Ensure power supply is activated
and then activate system power switch.
Operation
Refer to “Lighting and operation instructions”. The boiler
control regulates operation of the heating system automatically
in conjunction with the indoor/outdoor control and any
programmed settings (if applicable). Changes to the
settings or programming can be made according to separate
instructions provided with the boiler control.
For optimum operation
2.2 Shut-down
Shut-down procedure
1. Close main fuel supply valve.
2. Deactivate system power switch.
3. Deactivate main power supply to boiler and control.
We recommend that you contact your heating contractor
Prior to and after an extended shut-down period. In this
manner, the appropriate precautions, i.e. system freeze-up
protection or heat exchanger maintenance, can be taken.
Warning
Do not attempt to start the burner if excessive fuel has
accumulated in the combustion chamber. Do not open the
boiler door or clean outs when the boiler is hot.
2. Start-Up & Shut-Down Procedures
Keep the boiler and the boiler room clean and free of dust
and dirt.
Ensure proper system pressure by occasionally checking
pressure gauge.
Allow a qualied heating contractor to regularly service
and maintain your heating system.
Neglected maintenance impacts on product warranty; regular
cleaning and maintenance ensures clean, environmentally
friendly and ecient operation.
We recommend a maintenance contract with a qualied
heating contractor.
If you require assistance nding a qualied heating
contractor, please contact your local Sales Representative
or EnerPro Boilers.

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3. Lighting and Operating Instructions
For your safety, read before operating
Warning
If you do not follow these instructions exactly, a re 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 Consult
burner manual as supplied.
B. BEFORE OPERATING smell all around the appliance
area for gas. Be sure to smell next to the oor because
some gas is heavier than air and will settle on the oor.
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.
• If you cannot reach your gas supplier, call the re
department.
C. Use only your hand to push in or turn the gas control
knob. Never use tools. If the knob will not push in or
turn by hand, don’t try to repair it: call a qualied
service technician. Force or attempted repair may
result in a re or explosion.
D. Do not use this appliance if any part has been under
water. Immediately call a qualied technician to inspect
the appliance and to replace any part of the control
system and any gas control which has been under
Start-up procedure
• Inspect for proper baing insertion into ue passes. All clean out doors properly sealed. Burner ange closed and
properly bolted.
• Gas and oil systems ready. Proper vent connections. Required combustion and ventilation air provided.
• Waterside of system properly lled and vented of air.
• Lighting instruction followed.
• To be performed by a licensed tradesperson in accordance with the guidelines shown in this manual. Follow burner
manufactures instructions.
• Mandatory factory start-up report to be completed and returned to comply with the warranty process.
• Proper operating instructions of equipment to be related to operating personnel.
Shut-down procedure
• Disengage all electrical power switches to heating system burners, pumps. Isolate all boiler valves and fuel valves.
• For o-season shutdown, open boiler combustion ue passages and clean. Ensure venting, chimney, combustion
and ventilation air openings free from blockage. Do not drain waterside of system.

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4. Installation
4.1 INTRODUCTION
This Chapter provides the descriptions and procedures necessary to unpack, inspect and install the EPA and EPAW units.
4.2 RECEIVING THE UNIT
Each EPA-EPAW is shipped as a single skid unit. The unit must be moved with the proper rigging equipment for safety
and to avoid equipment damage. The unit should be completely inspected for evidence of shipping damage and shipment
completeness at the time of receipt from the carrier and before the bill of lading is signed.
Caution
EnerPro is not responsible for lost or damaged freight.
Note the information on the carrier’s paperwork and request a freight claim and inspection by a claims adjuster before
proceeding. Any other visual damage to the packaging materials should also be made clear to the delivering carrier.
4.3 UNPACKING
Carefully unpack the unit taking care not to damage the unit enclosure when cutting away packaging materials
After unpacking, a close inspection of the unit should be made to ensure that there is no evidence of damage. The
freight carrier should be notied immediately if any damage is detected.
The following accessories come standard with each unit and are either packed separately within the unit’s shipping
container or are factory installed on the unit:
• Pressure/Temperature Gauge
• ASME Pressure Relief Valve
• Low Water Cut O
• Vent Valves
• High Temperature Limit Cut O
4.4 Installation Clearances

The EPA and EPAW models are packaged in an enclosure having identical exterior dimensions. The unit must be installed
with the prescribed clearances for service as shown in Figure ****. The minimum clearance dimensions, required by EPA
and EPAW are listed below. However, if Local Building Codes require additional clearances, these codes shall supersede
EnerPro Boilers requirements. Minimum acceptable clearances required are as follows:
Front
24” 12”
Back
Top
Right
Left
12”
6”12”
All gas piping, water piping and electrical conduit or cable must be arranged so that they do not interfere with the
removal of any panels, or inhibit service or maintenance of the unit.
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1
27 4
2
6
5
7
8
14
3
18
20
23
10
15
11
24
16
13
21
17
22
12
28
9
1Air Gas Ratio Valve 14 Heat Exchanger
2Manual Gas Valve 15 Air Vent
3Combustion Blower 16 Flow switch
4Supply Gas 17 Water Return
5High Gas Pressure Switch 18 Boiler Exhaust
6Low Gas Pressure Switch 19 Boiler Drain
7Touch Screen Display 20 Base Frame
8Control Panel 21 High Temperature Limit Cut O
9Boiler Supply 22 Low Water Cut O
10 Pressure Relief Valve 23 Condensate Drain
11 Air Vent 24 Air Inlet
12 Pressure and Temperature Gauge 28 Return Temperature Sensor
13 Temperature Sensor
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4.4.1 Technical Information

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W
H
3
4
F
R
L1
L
D
Boiler Model W L L1 H D F R
EPA-EPAW 1050 32” 361/2” 511/2”78” 60” 27” 15”
EPA-EPAW 1600 35” 40” 55” 88” 65” 28” 16”
EPA-EPAW 2080 35” 40” 55” 95” 72” 30” 17”
4.4.3 Boiler Dimensions

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EPA/EPAW Boiler Model
Item Unit 1050 1600 2080
Firing Sequence Fully modulating
Min. Fuel Input MBH 105 160 208
Max. Fuel Input MBH 1,050 1,600 2,080
Thermal Eciency %Up to 98
Fuel Type Type Natural Gas
Vent Connection Inch 6 8 10
Condensate Drain
Connection Inch 1¼ 1¼ 1¼
Water Return Inch 21/2” F 21/2” F 3” F
Water Supply Inch 21/2” F 21/2” F 3” F
ASME MAWP psig 160 psig
Max. Water Temp.
Safety Limit F°/°C 200/93.3
Water Capacity US Gal/L 51/194 66/248 77/290
Max. Flue Gas Temp. F°/°C 230/110
Total Weight lbs/kg 1,240/562 1,750/795 1,980/899
Control Voltage V/P/H 110/1/60
Blower Voltage V/P/H 110/1/60
NOx Emmissions ppm <30
Control System - Honeywell Sola
Supply Gas Pressure Inch of Water Column 3.5”-14” wc (Honeywell gas valve) 3.5”-20” wc Dungs Gas Valve
4.4.4 Boiler Technical Specications

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4.5 Moving and Setting the Unit
Warning
KEEP THE UNIT AREA CLEAR AND FREE FROM ALL
COMBUSTIBLE MATERIALS AND FLAMMABLE VAPORS
OR LIQUIDS.
Warning
While packaged in the shipping container, the unit must
be moved by pallet jack or forklift from the FRONT ONLY.
32.74in
40.00in
26.70in
31.19in
20.00in
30.74in
29.19in
38.00in
19.00in
24.70in
FRONT
BACK
BACK
FRONT
EPA-EPAW2080
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EPA Series -Installation and Operation Manual
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EnerPro Boiler-EPA Series-IOM
5. GAS SUPPLY PIPING
Warning
NEVER USE MATCHES, CANDLES, FLAMES OR OTHER
SOURCES OF IGNITION TO CHECK FOR GAS LEAKS.
Warning
Many of the soaps used for gas pipe leak testing are
corrosive to metals. Therefore, piping must be rinsed
thoroughly with clean water after leak checks have been
completed.
NOTE
All gas piping must be arranged so that it does not interfere
with removal of any covers, inhibit service/maintenance, or
restrict access between the unit and walls, or another unit.
EPA and EPAW Boilers contain a 1 1/2 - 2 inch NPT gas inlet
connection on the back of the unit as shown in Figure***.
Prior to installation, all pipes should be de-burred and internally
cleared of any scale, metal chips or other foreign particles.
Do Not install any exible connectors or unapproved gas
ttings. Piping must be supported from the oor, ceiling or
walls only and must not be supported by the unit.
A suitable piping compound, approved for use with natural
gas, should be used. Any excess must be wiped o to
prevent clogging of components.
To avoid unit damage when pressure testing gas piping,
isolate the unit from the gas supply piping. At no time should
the gas pressure applied to the unit exceed the factory
specied pressure. Leak test all external piping thoroughly
using a soap and water solution or suitable equivalent. The
gas piping used must meet all applicable codes.
5.1 Manual Gas Shuto Valve
A manual shut-o valve must be installed in the gas supply
line upstream of the boiler as shown in Figure 2-7.

EPA Series -Installation and Operation Manual
19 EnerPro Boiler-EPA Series-IOM
6. AC ELECTRICAL POWER WIRING
A
A

EPA Series -Installation and Operation Manual
20
EnerPro Boiler-EPA Series-IOM
7. Flue gas Venting
7.1-Use Only an approved gas vent category II or IV type PH fabricated from AL29-4C.
The vent shall be sized by a chimney venting specialist or a professional engineer using methods or vent calculations
that are acceptable to National and local Codes having jurisdiction..
Any improper operating of the venting system must be corrected so the installation conforms to both ANSI Z223.1/
NFPA 54 or CAN/CSA B149 gas installation Codes.
When resizing any portion of common venting system, the system shall be resized to approach the minimum size as
determined using the appropriate table in part II of ANSI Z223.1/ NFPA54 gas code and /or CAN/CSA B149. Natural
gas and propane installation Code.
[For Category II – Negative breeching pressure range shall be between 0 to -0.09 inches water column
(0 to 0.22 mbar)]
The boiler requires a vent system that will produce sucient draft at all time to ensure safe and correct operation of
the boiler. The vent system must exhaust all ue gases to the outside in a safe eective manner.
Any improper sealed venting system could result in carbon monoxide (CO) poisoning. Ensure adequate support and
fastening of the vent system, according to vent manufacturer recommended or supplied instructions for proper support,
fastening and sealing requirements.
Do not use barometric draft control on a positive vent pressure ( Category IV). The vent as sized must exhaust all
ue gas gases to the outside in a safe and eective manner in any case.
When resizing any portion of the common venting system, the common venting system shall be resized to approach
the minimum size as determined using the appropriate tables in Part II of ANSI Z223.1/NFPA54 Blocked vent safety
device is equipped on the burner ( High gas pressure switch).
7.2 Co-Venting – Retrotting:
At the time of removal of any existing boiler, when is removed from a common vent system, the following steps shall
be performed with the each remaining appliance connected to the common vent in operation and not in operation.
This boiler must not be co-vented with a category I or III appliance.
1) Seal any unused opening in the common venting system.
2) visually inspect the venting system for proper size and horizontal pitch, determine there is no blockage, restriction,
leakage, corrosion and other deciencies which could cause an unsafe condition.
3) Close all building doors, windows and all doors between the appliances which remain connected to the common
venting system are located and other space of the building. Turn on clothes dryers, exhaust fan at maximum speed
and any appliance not connected to the common vent system, close replace dampers.
4) Place in operation each of the appliances installed in the common vent system being inspected. Follow the lighting
instructions. Adjust thermostat so appliance will operate continuously.
5) Test for spillage at the draft hood relief opening near and around the each of the gas appliances after 5 minutes
of main burner operation. Use the ame of the match or candle, or smoke from a cigarette, cigar, or pipe.
6) After determining that each appliance remaining connected to the common venting system properly vents when
tested as outlined above, return all doors, windows, exhaust fan, replace dampers and any other gas burning
appliance to their normal positions.
7) Any improper operating of the venting system must be corrected so the installation conforms to both ANSI Z223.1/