John Wood Polaris Commercial High-Efficiency User Manual
This manual covers model numbers:
Canada
PC 100-34 2NV or 2PV
PC 130-34 2NV or 2PV
PC 130-50 2NV or 2PV
PC 150-34 2NV or 2PV
PC 150-50 2NV or 2PV
PC 175-50 3NV or 3PV
PC 199-50 3NV or 3PV
Note:
The manufacturer of this water heater recommends that it
be professionally installed by trained and qualified service
professionals.
Polaris®
Commercial Gas
Water Heater
Installation
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury or death.
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 telephone in your
building.
• Immediately call your gas supplier
from a neighbor’s telephone. 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.
PRINTED IN U.S.A. 0112
Instructions and
Use & Care Guide
To obtain technical, warranty or service assistance during or
after the installation of this water heater, visit our website at:
http://www.gsw-wh.com
or call toll free:
1-888-479-8324
When calling for assistance, please have the following
information ready:
1. Model number
2. 7 Digit product number
3. Serial number
4. Date of installation
5. Place of Purchase
Table of Contents........................................................... 2
INSTALLER:
• Affix these instructions to or adjacent to the water
heater.
OWNER:
• Retain these instructions and warranty for future
reference. Retain the original receipt as proof of
purchase.
322761-000
1
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance. Always read and obey all
safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word “DANGER” or
“WARNING.” These words mean:
Indicates an imminently hazardous situation which, if not
avoided, will result in death or injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you
what can happen if the instructions are not followed.
Important Instructions
• Do not use this water heater if any part has been under water. Immediately call a qualified service technician.
Water heaters subjected to flood conditions or anytime the gas controls, main burner or ignition control have been
submerged in water require replacement of the entire water heater.
• Hydrogen gas can be produced in a hot water system that has not been used for a long period of time (generally
two weeks or more). Hydrogen gas is extremely flammable and can ignite when exposed to a spark or flame. To
prevent the possibility of injury under these conditions, we recommend the hot water faucet be opened for several
minutes at the kitchen sink before using any electrical appliance which is connected to the hot water system. If
hydrogen is present, there will probably be an unusual sound such as air escaping through the faucet as water
begins to flow. Do not smoke or have any open flame near the faucet at the time it is open.
Table of Contents Page
Water Heater Safety ............................................................................ 1-2
Installation Instructions ...................................................................... 3-22
Unpacking the Water Heater ............................................................ 3
Location Requirements ..................................................................... 4
Condensate Line ........................................................................... 5-6
Intergrated Filter Installation ............................................................ 7
Vent Pipe System ........................................................................ 8-11
Vent Terminations ........................................................................ 9-12
Gas Input Rate ................................................................................ 13
Water System Piping ................................................................. 13-16
Gas Supply and Piping ............................................................. 17-18
Electrical Connections/Wiring Diagram ..................................... 19-20
Installation Checklist ....................................................................... 21
Operating Your Water Heater .......................................................... 22-24
Polaris® Operating Instructions ........................................................... 23
Maintenance of Your Water Heater ................................................. 24-25
Troubleshooting .................................................................................... 26
Software Operation Sequence ............................................................. 27
Parts List and Diagram ......................................................................... 28
Polaris® Models and Dimensions .......................................................... 29
2
INSTALLATION INSTRUCTIONS
Consumer Information
OBSERVE ALL GOVERNING CODES AND ORDINANCES.
This water heater is design-certified by CSA International
as a Category IV, direct vented water heater which takes
its combustion air from the outside of the structure and
exhausts all products of combustion to the outside of the
structure.
This water heater must be installed according to all local
and state codes or in the absence of local and state codes
with the “National Fuel Gas Code”, ANSI Z223.1(NFPA
54)- current edition. Canadian installations must be performed in accordance with CAN/CSA-B149.1-current edition. This is available from the following:
CSA America, Inc.
8501 East Pleasant Valley Road
Cleveland, OH 44131
National Fire Protection Agency
1 Batterymarch Park
Quincy, MA 02169-7471
Canadian Standards Association
178 Rexdale Boulevard
Toronto, ON M9W 1R3
Check the phone listings for the local authorities having
jurisdiction over this installation.
Installer and Owner Responsibilities
This manual has been prepared to acquaint you with the
installation, operation, and maintenance of your gas water
heater and provide important safety information in these
areas.
Read all of the instructions thoroughly before attempting
the installation or operation of this water heater.
Do not discard this manual. You or future users of this
water heater will need it for future reference.
Service to the water heater should only be performed
by a qualified service technician.
Examples of qualified service technicians include:
those trained in the plumbing and heating industry,
local gas utility personnel, or an authorized service
person.
The manufacturer and seller of this water heater will
not be liable for any damages, injuries, or deaths
caused by failure to comply with the installation and
operating instructions outlined in this manual.
A data plate identifying your water heater can be found on
the front of the heater. When referring to your water heater,
always have the information listed on the data plate readily
available.
Keep combustibles such as boxes, magazines, clothes,
etc., away from water heater area.
Retain your original receipt as proof of purchase.
Unpacking the Water Heater
Excessive Weight Hazard
Use two or more people to move and
install water heater unless proper
handling equipment is utilized.
Failure to do so can result in back or
other injury.
Removing Packaging Materials
Important: Do not remove any permanent instructions,
labels, or the data plate from outside of the water heater or
on the inside of panels.
• Remove exterior packaging and place installation
components aside.
• Inspect all parts for damage prior to installation and
start-up.
• Completely read all instructions before attempting to
assemble and install this product.
• After installation, dispose of packaging material in the
proper manner.
If you lack the necessary skills required to properly install
this water heater, or you have difficulty following the
instructions, you should not proceed but have a qualified
service technician perform the installation of this water
heater.
3
FIRE AND EXPLOSION HAZARD
Can result in serious injury or death
the termination with a minimal length and number of
elbows. Input rates are reduced as vent system length
increases. The venting system must comply with the
requirements set forth in the venting section of this
manual.
• Locate the water heater near the existing gas piping.
If installing a new gas line, locate the water heater to
minimize the pipe length and elbows.
Important: Air for combustion and ventilation must not
come from a corrosive atmosphere. Any failure due to corrosive elements in the atmosphere is excluded from warranty coverage.
Note: The water heater must be installed according to all
state and local/provincial codes or in absence of the state
and local/provincial codes with the “National Fuel Gas
Code”, ANSI Z223.1 (NFPA 54)-current edition. Canadian
installations must be performed in accordance with CAN/
CSA-B149.1-current edition.
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance. Storage of or
use of gasoline or other flammable vapors
or liquids in the vicinity of this or any other
appliance can result in serious injury or death.
Location Requirements
The water heater design has been tested by CSA
International and complies with ANSI Z21.10.1, Section
2.35 Flammable Vapors Resistance. In garage installation
avoid damage to your water heater by installing a vehicle
stop as shown in figure below. Check state and local/
provincial codes for requirements prior to installation.
Figure 1: Garage Installation
Important: The water heater should be located in
an area where leakage of the tank or connections will
not result in damage to the area adjacent to the water
heater or to lower floors of the structure. Due to the
normal corrosive action of the water, the tank will
eventually leak after an extended period of time.
Also any external plumbing leak, including those
from improper installation, may cause early failure
of the water tank due to corrosion if not repaired.
A qualified service technician should be contacted
for repairs. A suitable metal drain pan should be
installed under the water heater as shown below, to
help protect the property from damage which may
occur from condensate formation or leaks in the piping
connections or tank. The pan must limit the water level
to a maximum depth of 1-3/4” (4.45 cm) and be at least
two inches (5 cm) wider than the heater and piped to an
adequate drain. Locate the water heater near a suitable
indoor drain. Outside drains are subject to freezing
temperatures which can obstruct the drain line. The
piping should be at least 3/4” (1.91 cm) ID and pitched
for proper drainage. Under no circumstances will the
manufacturer or seller of this water heater be held liable
for any water damage which is caused by your failure to
follow these instructions.
This water heater is not certified for installation in mobile
homes.
Site Location
• Select a location near the center of the water piping
system. The water heater must be installed indoors
and in a vertical position on a level surface. DO NOT
install in bathrooms, bedrooms, or any occupied room
normally kept closed. Note: The water heater may be
installed in a closet with a door off a bedroom or bathroom providing the units are installed and vented per
the manufacturer’s instructions.
• Consider the inlet and exhaust vent system piping
when selecting the water heater location. The venting
system must be able to run from the water heater to
4
1-3/4” (4.45 cm) Max.
(5 cm)
Figure 1A
• The water heater should be located in an area not sub-
ject to freezing temperatures. Water heaters located in
unconditioned spaces (i.e., attics, basements, etc) may
require insulation of the water piping and drain piping
to protect against freezing. The drain and controls must
be easily accessible for operation and service. Maintain
proper clearances as specified on the data plate.
Clearances and Accessibility
Notice: Minimum clearances from combustible materi-
als are stated on the data plate located on the front of the
water heater.
• The water heater is certified for installation on a
combustible floor.
Important: If installing over carpeting, the carpeting must
be protected by a metal or wood panel beneath the water
heater. The protective panel must extend beyond the full
width and depth of the water heater by at least 3 inches
(7.62 cm) in any direction or if in a alcove or closet installation, the entire floor must be covered by the panel. The
panel must be strong enough to carry the weight of the
heater when full of water.
Figure 2 may be used as a reference guide to locate the
specific clearance locations. A minimum of 24 inches
(61 cm) of front clearance and 4 inches (10.2 cm) on each
side should be provided for inspection and service.
Figure 2: Minimum Clearance Locations
Back 0” (0 cm)
Sides: 4” (10.2 cm)
Min. for service
Front: 24”
(61 cm )
Min. for service
Top: 0” (0 cm)
Vent: 0”
(0 cm)
CONDENSATE LINE
Important: Do not run the condensate drain in areas
that are likely to freeze. Frozen condensate will block the
drain line and result in property damage or water heater
malfunction.
Condensate Trap Assembly
A condensate trap/drain stem assembly has been supplied
with the water heater and is located behind the access door
inside the base of the water heater. This assembly must be
installed between the water heater and the exhaust outlet
piping to ensure proper operation of the water heater. To
install, remove the slip-joint nut, stainless steel washer, and
O-ring from the trap assembly. Slip the nut, washer and
O-ring (in that order) over the stainless exhaust tubing and
slide them back near the base of the heater. Insert the trap
assembly over the tubing (see figure 3A accordingly) and
firmly hand-tighten (using a wrench will cause the O-ring to
seal improperly) the nut to form a water-tight seal between
the O-ring and the stainless exhaust tubing. When
tightened, the nut to heater base clearance should be 3/4”
(+/- 1/8”) tolerance (1.9 cm +/- 0.31 cm tolerance).
Note: The trap should be aligned so that the exhaust pipe
is in a vertical position close to the surface of the water
heater.
Sides: 4” (10.2 cm)
Min. for service
Figure 3A: 2” Condensation Trap Installation
5
Figure 3B: Condensate Drain
Condensate Drain Line
All parts of the condensate trap are glued except for the
1/2” CPVC drain stem joint at the elbow (see figure 3A).
This assembly can be turned with the outlet of the tee
oriented as needed.
Once orientation direction is decided, remove the unglued
joint from the elbow at the bottom and apply a suitable
cement to joint. Re-insert the joint fully and quickly into
the elbow making sure to orient it before the cement sets.
Connect the remaining piping and run the condensate drain
line to a suitable drain.
Important: Be sure the drain stem joint is inserted against
the stop in the elbow. Failure to do so may result in
improper water heater operation.
If required by local codes, install a condensate neutralizer
cartridge on the drain line (see figure 3B).
The condensate drain line must be routed to a suitable
drain. If no floor drain is available or the drain is above
the level of the condensate line, install a condensate pump
that is resistant to the acidic condensate. These pumps are
available from local distributors. If the pump is not resistant
to acidic water, a condensate neutralizer must be used
ahead of the pump.
When installing the drain line, note the following:
• Plastic pipe or tubing must be used to connect the
condensate drain to a suitable drain or condensate
pump. Do not use copper tubing, iron, or steel pipe for
the condensate drain line.
• Condensate drain lines should be installed in conditioned areas only. Drain lines installed in areas that are
subject to freezing temperatures should be wrapped
with a nationally recognized/listed heat tape and/or
approved insulation for freeze protection. Install per
manufacturer’s instructions.
• Do not common drain with the temperature and pressure relief valve or the condensate line from an air
conditioner evaporator coil.
• Slope the condensate drain toward the inside floor
drain or condensate pump.
• The condensate drain line and connection to the drain
piping must comply with all local codes.
• Do not run the condensate line into the metal drain
pan.
VENT PIPE SYSTEM
Carbon Monoxide Hazard
Follow all instructions to locate and install
the vent pipe system.
Instructions can be found in this manual, in
state or local codes (or the authority having
jurisdiction), or in the absence of such, the
National Fuel Gas Code, ANSI Z223.1, NFPA
54, Current Edition. Canadian installations
must be performed in accordance with
CAN/CSA-B149.1, Current Edition.
Failure to properly locate and install the
vent pipe system can result in death or
carbon monoxide poisoning.
Venting
This water heater has a direct vent system in which all air
for combustion is taken from the outside atmosphere and
all combustion products are discharged to the outdoors.
This water heater must be properly vented for removal
of exhaust gases to the outside atmosphere. Correct
installation of the vent pipe system is mandatory for the
safe and efficient operation of this water heater and is an
important factor in the life of the unit.
Vent pipe installation must be performed in accordance
with state and local codes, or in the absence of such, the
National Fuel Gas Code, NFPA 54, ANSI Z223.1-current
edition. Canadian installations must be performed in
accordance with CAN/CSA-B149.1-current edition.
When replacing an existing Polaris® unit, it is recommended
that the venting system be reviewed for compliance with
the requirements contained in this installation manual. If the
venting is not in compliance, it is recommended that the
appropriate changes be made to bring it into compliance.
Note: It is important that the factory-installed air inlet
filter be inspected at least twice each year and cleaned if
necessary. See “Integrated Filter Installation, Preventive
Maintenance”. Note: if the vent system is not in compliance
with the current installation manual, the manufacturer
reserves the right to evaluate the installation prior to
granting any warranty on service claims.
Important: Check to make sure the vent pipe is not
blocked in any way.
Note: Do not common vent this water heater with any
other appliance. Do not install in the same chase or
chimney with a metal or high-temperature plastic from
another gas or fuel burning appliance.
6
Integrated Filter Installation
When installing the adaptor rubber boot, note the following:
• Remove and discard the plastic cap from the outer
clamshell housing (see figure 4A).
• To connect the heater to the air inlet, use the vent
adaptor rubber boot provided in the base skirt. The
adaptor rubber boot is designed for 3” venting (see
figure 4B). Note: If there is a need for 2” venting, then
use plastic pipe and fittings to transition down.
• Loosen the hose clamp at the adaptor rubber boot and
slide the plastic piping into the adaptor rubber boot.
With piping in place, tighten the hose clamp. Install a
3” x 3” x 3” TY drain/waste/vent fitting to trap airborne
particulates (see figure 4C). Note: If piping has been
previously cut with a saw, be sure to remove all burrs
and plastic shavings from the piping before installing.
Preventive Maintenance
Figure 4A: Remove Plastic Cap
Outer Clamshell
Housing With Filter
Gas Piping
Remove
Plastic Cap
Base Skirt
Figure 4B: Adaptor Rubber Boot
The heater is designed to shut down if the pressure
switch senses that the air inlet vent or the exhaust vent
is restricted. In this case, the pressure switch will open
and the heater will generate a 2-flash code (see the
troubleshooting section). If troubleshooting section of
this manual indicates that there is a blockage, note the
following:
• Turn off the gas supply to the water heater at the
manual gas shut-off valve, and disconnect power to the
water heater.
• To inspect the filter, loosen the hose clamp at the adaptor rubber boot and slide the plastic pipe out and away
from the adaptor rubber boot (see figure 4C).
• Remove the adaptor rubber boot containing the outer
clamshell housing by turning clockwise approximately
1/2” (30.5 cm) and pulling off of the internal clamshell
housing (see figure 4C).
• Using your fingers or a small flat blade screwdriver,
remove the filter media from the outer clamshell housing, handle carefully (see figure 4D).
• To clean filter, lightly tap the back of the filter support
to dislodge any large debris. Smaller debris may be removed by using a vacuum cleaner. the filter media may
be cleaned by dipping the filter media into a solution of
warm soapy water and rinsing in clean water. Do not
scrub, allow to air dry before reinstalling. Filter media
may be cleaned on an average 2 to 3 times before
replacing with a new filter media is required.
• Reinstall the filter media by doing the above steps in
reverse order.
• Turn on the gas supply and reconnect power, refer to
the operating instructions on front of the water heater.
Verify proper operation of the water heater before
leaving.
Note: The heater must never be operated without the
filter media installed.
Adaptor Rubber
Boot
Figure 4C: Air Inlet Piping
Piped To
External Air
Supply
3” x 3” x 3” TY DWV Fitting
(Position Cure Slope Upward)
Install A Small Portion
Of Pipe And A Pipe Cap
To Rest On Floor.
Figure 4D: Filter Media
Filter Media shown inside
the Outer Clamshell Housing
Adaptor
Rubber Boot
Outer Clamshell
Housing
Push On &
Tighten Clamp
grease to the surface of the black rubber
Remove
Filter Media
Outer Clamshell
Housing
Hose Clamp
Adaptor Rubber Boot
Outer Clamshell Housing
3” Plastic Pipe
NOTE: if found difficult to
reattach the outer clamshell
housing to the internal clamshell
housing - apply a thin layer of silicone
support of the Filter Media.
7
Vent Pipe Material
Combustion Air Inlet Piping; The following plastic
materials may be used for combustion air inlet piping.
IMPORTANT: Follow all local codes or, in the absence
of local codes, CSA B149.1, Natural Gas and Propane
Installation Code - current edition to properly install air inlet
piping.
• Schedule 40 PVC
• Schedule 40 or 80 CPVC
• DWV Pipe and Foam Core Piping is
acceptable as intake pipe only.
Exhaust Piping; Exhaust PVC or CPVC plastic piping
shall be certified and marked as complying to Standard
for Type BH Gas Venting System ULC-S636. In addition
plastic piping, plastic components, primers, and glues must
be from a single source manufacturer and not mixed with
other listed or unlisted systems. IMPORTANT: Follow all
local codes or, in the absence of local codes, CSA B149.1,
Natural Gas and Propane Installation Code - current
edition to properly install exhaust piping.
Important: Do not use vent elbows in this vent pipe installation (see figure 5 below).
Figure 5: Correct and Incorrect Pipe Fittings
Vent Pipe Installation
The following guidelines should be followed when installing
the air inlet and exhaust outlet piping:
• Venting should be as direct as possible with a minimum
number of pipe fittings.
• Vent diameter must not be reduced unless specifically
noted in the installation instructions.
• All 2” horizontal vent piping must be sloped upward
1/4 inch per foot (21 mm per meter); (3” Piping must
slope upward at 1/8” per foot) (10.5 mm per meter).
This will allow condensate to run back to the heater
and exit through the condensate trap.
• Support all horizontal pipe runs every four feet (1.2 m)
and all vertical pipe runs every six feet (1.8 m) or
according to local codes.
• Vents run through unconditioned spaces where below
freezing temperatures are expected should be properly
insulated to prevent freezing. For horizontal runs, wrap
the vent pipe with nationally recognized/listed heat tape
and/or approved insulation for freeze protection. Install
per the manufacturer’s instructions.
• An air intake filter is included with the unit and must be
installed according to the installation instructions
supplied with the filter.
The combustion air inlet and exhaust outlet piping and
termination may be installed in one of the following type
terminations:
1. Standard Horizontal (2 Pipe)
2. Alternate Horizontal (2 Pipe)
3. Vertical (2 Pipe)
4. Concentric Vent - Through the Wall
5. Concentric Vent - Through the Roof
8
All pipe, fittings, pipe cement, primers and procedures
must conform to American National Standard Institute and
American Society for Testing and Materials (ANSI/ASTM)
standards in the United States. This water heater has been
design certified by the Canadian Standards Association for
use with the specified (CSA) listed plastic vent pipe.
All joints in the inlet and outlet piping must be properly
cemented. Size and cut all piping before cementing.
1. Cut the pipe end square and remove all ragged edges
and burrs. Make sure the inside of the pipe is clean
and free of cuttings and loose dirt. Chamfer the end
and apply primer to the fitting and pipe.
2. Using a suitable grade of pipe cement, apply a moderate, even coat inside the fitting. Apply a liberal amount
of cement to the outside of the pipe to socket depth.
Note: It is important to select the proper pipe cement for
the type of plastic pipe being used.
3. Assemble the parts quickly while the cement is
still wet. Twist the pipe 1/4 turn during insertion
and hold for 30 seconds.
Vent Pipe Length
Size the exhaust outlet and combustion air inlet pipes as
specified in Table 1. This table lists the maximum allowable length in feet of the exhaust outlet and combustion air
inlet pipes as related to the number of required elbows and
the termination. The specified maximum lengths are for
the separate inlet and exhaust pipe systems and not the
combined length of both systems. Minimum pipe length is
6 feet (1.8 m) with one elbow per side.
1. Determine termination type and pipe size.
2. Determine number of elbows in exhaust pipe. Do not
include the elbows in the termination or the condensate
trap. Corresponding number Indicates the maximum
length of exhaust pipe.
3. Determine number of elbows in inlet pipe. Do not
include the elbows in the termination. The corresponding number indicates the maximum length of inlet pipe.
Maximim allowable Length in Feet (Meters) of Exhaust and Air Inlet Pipe
Pipe
Size in
Inches
*2
*2
*2
*2
3
3
3
3
Minimum length is 6 feet (1.8 m) per pipe with 1 elbow per side.
2 Inch pipe may be used with 100,000, 130,000 & 150,000
BTU/HR (29.3, 38, & 43.9 kW) input models only.
* 3” pipe must be used for 175,000 BTU/Hr (51.29 kW) input and above.
For Schedule 40 CPVC, OR PVC Pipe and Fittings
52
48
(15.8)
(14.6)
44
(13.4)40(12.2)36(11)32(9.7)28(8.5)24(7.3)
48
52
(15.8)
130
(39.6)
44
(14.6)
(13.4)40(12.2)36(11)32(9.7)28(8.5)
52
48
(15.8)
(14.6)44(13.4)40(12.2)36(11)32(9.7)
120
125
(36.6)
(38.1)
115
110
(35)
(33.5)
120
115
(36.6)
(35)
125
120
(38.1)
(36.6)
44
(13.4)
115
(35)
105
(32)
110
(33.5)
115
(35)
40
(12.2)
110
(33.5)
100
(30.5)
105
(32)
110
(33.5)
(28.9)
(30.5)95(28.9)
(11)
105
(32)
95
100
105
(32)
36
32
(9.7)
100
(30.5)
90
(27.4)
100
(30.5)
Vent Termination Locations
The air inlet and exhaust outlet must be installed with the
following minimum clearances (see figure 6):
• Twelve inches (30 cm) above grade or maximum antici-
pated snow level.
• Twelve inches (30 cm) from any opening through which
flue gases could enter the structure.
• Four feet (122 cm) horizontally and vertically from gas
or electric meters, gas regulators, dryer vents, vent
hoods, bathroom fan exhaust, attic fans and turbines.
• Two feet (61 cm) from an inside corner formed by two
exterior walls.
• Two feet from porches, decks, overhangs and other
obstructions.
In addition to maintaining the minimum clearances , the
vent should terminate according to the following guidelines:
Figure 6: Minimum Clearances for Inlet/Outlet and Concentric Vent
1. Use only 2 inch pipe or a 2 inch concentric vent
on the vent termination for 100,000 - 150,000 BTU/
Hr models. Do not expose any 3” X 2” reducers or
bushings to outdoor ambient temperatures.
CAN/CSA B149.1 Section 8.14.8:
2. When terminating a vent under a veranda, porch or
deck, venting must be installed in accordance to all local and provincial codes or in the absence of local and
provincial codes, please refer to the CAN/CSA B149.1.
3. A vent shall not terminate less than 7 ft. (2.1 m) above
a paved sidewalk or paved driveway that is located on
public property.
4. A vent shall not terminate in an area where children or
animals could block pipes.
5. A vent shall not terminate in a location that is too close
to shrubs or bushes.
6. Caulk all cracks, seams and joints within 6 feet (1.83 m)
horizontally above and below the vent.
7. Combustion air inlet termination and exhaust air termination must be located in the same pressure zone.
US Installations Canadian Installations
A. 12 in (30 cm) min. clearance above grade,
veranda, porch, deck, balcony, or maximum
anticipated snow level.
B. 12 in (30 cm) min. clearance on top and side of
window or door that may be opened. Maintain a
36 in (91 cm) minimum clearance below a window
or door that may be opened.
C. Clearance to permanently closed window.**
D. 12 in (30 cm) min vertical clearance to ventilated
soffit located above the terminal within a horizontal
distance of 2 ft (61 cm) from the center line of the
terminal.
E. 12 in (30 cm) min. clearance to unventilated soffit.
F. Clearance to outside corner **
G. 2 ft (61 cm) clearance to inside corner formed by
two exterior walls.
H. 4 ft (122 cm) clearance to each side of center line
extending above meter/regulator assembly.
I. 4 ft (122 cm) clearance to service regulator vent
outlet.
J. 12 in (30 cm) clearance to nonmechanical air
supply inlet to building or the combustion air inlet
to any other appliance.
K. 3 ft (91 cm) above if within 10 ft (3 m) horizontally of
mechanical air supply inlet.
**Clearance in accordance with local installation codes and the requirements of the gas supplier.
A. 12 in (30 cm) min. clearance above grade,
veranda, porch, deck, balcony, or maximum
anticipated snow level.
B. 12 in (30 cm) min. clearance on top and side of
window or door that may be opened. Maintain
a 36 in (91 cm) minimum clearance below a
window or door that may be opened.
C. Clearance to permanently closed window.**
D. 12 in (30 cm) min vertical clearance to ventilated
soffit located above the terminal within a horizontal
distance of 2 ft (61 cm) from the center line of the
terminal.
E. 12 in (30 cm) min. clearance to unventilated soffit.
F. Clearance to outside corner. **
G. 2 ft (61 cm) clearance to inside corner formed by
two exterior walls.
H. 3 ft (91 cm) within a height 15 ft (4.57 m) above the
meter/regulator assembly.
I. 4 ft (122 cm) clearance to service regulator vent outlet.
J. 12 in (30 cm) clearance to nonmechanical air
supply inlet to building or the combustion air inlet to
any other appliance.
K. 6 ft (1.83 m) clearance to mechanical air supply inlet.
9
INLET/OUTLET VENT TERMINATIONS
Standard Horizontal Termination
When 3 inch pipe is used between the water heater and the
outside wall, reduce it to 2 inch pipe before penetrating the
wall. A maximum of 18 inches (45.7 cm) of 2 inch pipe may
be used between the 3 inch transition and the inside of the
wall (see figure 7).
The standard horizontal air inlet termination is a 2 inch
pipe which terminates at the exterior wall and utilizes a
coupling to prevent the pipe from being pushed back into the
structure. The standard horizontal exhaust outlet termination
is a 2 inch pipe which terminates 12 inches (30.5 cm) from
the outside wall. The air inlet must be located with respect to
the exhaust outlet as shown in figure 7 (bottom).
Install a drain tee assembly and trap in the inlet vent as close
to the water heater as possible. This is to drain any water
that may be in the combustion air pipe and prevent it from
entering the blower. Connect the trap drain line to a suitable
drain or downstream of the condensate trap of the water
heater.
®
Note: See “Venting Additional Polaris
for correct terminations if installing more than one Polaris®
gas water heater.
Units” on Page 11
Alternative Horizontal Termination
The combustion air and exhaust terminations may be
raised up to 24 inches (61 cm) above the wall penetrations
if required for anticipated snow levels (see figure 8). The
two elbows shown in figure 8 are considered part of the
termination and should not be included when determining
the maximum allowable vent pipe length.
®
Note: See “Venting Additional Polaris
for correct terminations if installing more than one Polaris®
gas water heater.
Figure 8: Alternate Horizontal Termination
(30.5 cm)
24”
(61 cm)
Max.
Units” on Page 11
Figure 7: Standard Horizontal Termination
3” (7.6cm) Max.
Note 4.
12” (30.5 cm)
2”
Coupling
4” (10 cm)
Max.
4” (10 cm)
Max.
12” (30.5cm) Min. Above
Grade or Anticipated
Notes:
1. Support Horizontal Pipe Every
Four Feet (1.2 m). Support Vertical
Pipe Every Six Feet (1.8 m).
2. When Using 3 Inch Pipe, Reduce To 2 Inches Before
Penetrating The Outside Wall.
3. 18 Inch (45.7 cm) Maximum When Using 3 Inch Pipe.
4. Increase The 12 Inch (30.5 cm) Minimum Above
Grade To Keep Terminal Openings Above Anticipated
Snow Levels.
5. Slope All Piping Down Toward the Water Heater as
Follows:
´3LSLQJVORSH´3HU)RRWPPSHUPHWHU
´3LSLQJVORSH´3HU)RRWPPSHUPHWHU
Snow Level. See
(76.2 cm)
*
*
*
10
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