Polaris PR 175-50 3NV OR 3PV, PR 130-34 2NV OR 2PV, PG10 50-130-2NV OR 2PV, PG10 50-175-3NV OR 3PV, PG10 34-150-2NV OR 2PV User Manual
...
This manual covers model numbers:
United States Canada
PG10* 34-100-2NV or 2PV
PG10* 34-130-2NV or 2PV
PG10* 50-130-2NV or 2PV
PG10* 34-150-2NV or 2PV
PG10* 50-175-3NV or 3PV
PG10* 50-199-3NV or 3PV
PG10* 100-199-3NV or 3PV
* Indicates warranty period
Note:
The manufacturer of this water heater recommends that it
be professionally installed by trained and qualified service
professionals.
PR 100-34 2NV or 2PV
PR 130-34 2NV or 2PV
PR 130-50 2NV or 2PV
PR 150-34 2NV or 2PV
PR 175-50 3NV or 3PV
PR 199-50 3NV or 3PV
PR 199-100-3NV or 3PV
Polaris®
Residential Gas
Water Heater
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.
Installation
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.americanwaterheater.com
or call toll free:
1-800-456-9805.
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:
• Affi x 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.
6510336
December 2004
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:
You can be killed or seriously injured if you don’t
immediately follow instructions.
You can be killed or seriously injured if you don’t follow
instructions.
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 appliance 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.
The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to publish a list of
substances known to the State of California to cause cancer, birth defects, or other reproductive harm, and requires
businesses to warn of potential exposure to such substances.
Warning: This product contains a chemical known to the State of California to cause cancer, birth defects, or other
reproductive harm.
This appliance can cause low-level exposure to some of the substances listed, including formaldehyde, carbon
monoxide, and soot.
Table of Contents Page
Water Heater Safety ............................................................................1-2
Installation Instructions ......................................................................3-23
Unpacking the Water Heater ............................................................ 3
Location Requirements .................................................................. 4-5
Condensate Line ...........................................................................5-6
Vent Pipe System ........................................................................ 6-15
100,000 - 150,000 BTU/Hr Vent Terminations ............................. 9-11
175,000+ BTU/Hr Vent Terminations ......................................... 12-14
Gas Input Rate ................................................................................ 15
Water System Piping ................................................................. 15-18
Gas Supply and Piping ............................................................. 19-20
Electrical Connections/Wiring Diagram ..................................... 21-22
Installation Checklist ....................................................................... 23
Operating Your Water Heater ..........................................................24-26
Polaris® Operating Instructions ........................................................... 25
Maintenance of Your Water Heater .................................................26-27
Troubleshooting ....................................................................................28
Software Operation Sequence ............................................................. 29
Parts List and Diagram ....................................................................30-31
Polaris® Models and Dimensions ........................................................ 32
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)- latest edition. Canadian installations must be performed in accordance with CAN/CGA-B149. 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.
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.
Massachusetts code requires this water heater to be
installed in accordance with Massachusetts Plumbing and
Fuel Gas Code 248 CMR section 2.00 and 5.00.
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.
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.
3
FIRE AND EXPLOSION HAZARD
Can result in serious injury or death
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
codes for requirements prior to installation.
Figure 1: Garage Installation
• 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
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
local and state codes or in absence of the local and state
codes with the “National Fuel Gas Code”, ANSI Z223.1
(NFPA 54)-latest edition. Canadian installations must be
performed in accordance with CAN/CGA-B149.
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” and be at least two inches 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” 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.
Note: In the State of California, the water heater must be
braced, anchored, or strapped to avoid moving during an
earthquake. Contact local utilities for code requirements in
your area or call 1-800-456-9805 and request instructions.
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.
4
34/50 GAL. MODEL SHOWN
• 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
(76.2mm) 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 of
front clearance and 4 inches on each side should be provided for inspection and service.
Figure 3A: 2” Condensation Trap Installation
100,000 - 150,000 BTU/Hr Models
Figure 2: Minimum Clearance Locations
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 or 3B 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”). On 100 gallon models the condensate
trap assembly should be glued to the exhaust pipe (see
figure 3C).
Note: The trap should be aligned so that the exhaust pipe
is in a vertical position close to the surface of the water
heater.
Figure 3B: 3” Condensation Trap Installation
175,000 - 199,000(50 gal.) BTU/Hr Models
Figure 3C: 3” Condensation Trap Installation
100 Gallon Models
5
Figure 4: 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 3). 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 4).
The condensate drain line must be routed to a suitable
drain. If no fl oor 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 fl oor
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 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, Latest Edition. Canadian installations
must be performed in accordance with
CAN/CGA-B149.
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-latest
edition. Canadian installations must be performed in
accordance with CAN/CGA-B149.
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.
If this is not practical, and the existing venting system
complies with a prior Polaris installation manual the venting
requirements as stated in the updated installation manual
do not have to be met: however, vent length in excess of
those referenced in the manual will result in reduced input.
Note: in either case it is important that the inlet air filter
supplied with this unit be installed in the inlet combustion
air piping. (Follow installation instructions supplied with the
filter kit). Note: if the vent system is not in compliance with
the current or prior installation manuals, 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
Vent Pipe Material
The following plastic materials may be used for both the
combustion air inlet and exhaust outlet piping subject to
state and local codes:
• Schedule 40 PVC or ABS
• Schedule 40 or 80 CPVC
• DWV Pipe is acceptable
Note: Use only solid (not foam core) piping.
Plastic pipe and fittings are available through most plumb-
ing suppliers. Always check the marking on the pipe to
make sure you are using the correct material.
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 (3” Piping must slope upward at 1/8”
per foot) so that condensate will run back to the heater
and exit through the condensate trap.
• Support all horizontal pipe runs every four feet and
all vertical pipe runs every six feet 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
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. T wist 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 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.
7
Vent Termination Locations
The air inlet and exhaust outlet must be installed with the
following minimum clearances (see figure 6):
• Twelve inches above grade or maximum anticipated
snow level.
• Twelve inches from any opening through which flue
gases could enter the structure.
• Four feet horizontally and vertically from gas or electric
meters, gas regulators, dryer vents, vent hoods, bathroom fan exhaust, attic fans and turbines.
• Two feet 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. For inputs of 175,000 BTU/Hr or more, use
only 3 inch pipe or a 3 inch concentric vent. Do not
expose any 3” X 2” reducers or bushings to outdoor ambient temperatures.
2. The air inlet and exhaust outlet must not terminate
under a patio, deck or any covered area.
3. Do not terminate the vent near walkways or into alleys
or other publicly accessible areas.
4. Do not terminate the vent in an area where children
or animals could block pipes.
5. Do not locate the vent terminal too close to shrubs or
bushes.
6. Caulk all cracks, seams and joints within 6 feet 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. Do not install
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. Do not install
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.
8
INLET/OUTLET VENT TERMINATIONS (100,000 - 150,000 BTU/HR)
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 of 2 inch pipe may be used
between the 3 inch transition and the inside of the wall (see
figure 7A).
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 from the outside
wall. The air inlet must be located with respect to the exhaust
outlet as shown in figure 7A (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® Units” on Page 10
for correct terminations if installing more than one Polaris®
gas water heater.
Alternative Horizontal Termination
The combustion air and exhaust terminations may be raised
up to 24 inches above the wall penetrations if required for
anticipated snow levels (see figure 8A). The two elbows
shown in figure 8A are considered part of the termination
and should not be included when determining the maximum
allowable vent pipe length.
Note: See “Venting Additional Polaris® Units” on Page 10
for correct terminations if installing more than one Polaris®
gas water heater.
Figure 8A: Alternate Horizontal Termination
(100,000 - 150,000 BTU/Hr Input Models)
Figure 7A: Standard Horizontal Termination (100,000 - 150,000 BTU/Hr Models)
9
VERTICAL TERMINATIONS (100,000 - 150,000 BTU/HR)
When 3 inch pipe is used between the water heater and the
roof, reduce it to 2 inch pipe before penetrating the roof. A
maximum of 18 inches of 2 inch pipe may be used between
the 3 inch transition and the inside of the roof.
The vertical inlet air termination requires a return bend
or two short or long sweep radius 90 elbows to keep the
inlet downward and prevent entry of rain. These elbows
are considered part of the termination and should not be
included when calculating the maximum allowable vent
pipe length. Refer to figure 9A for the proper location of the
air inlet with respect to the exhaust outlet termination. The
vertical exhaust outlet termination is a 2 inch pipe which
terminates at least 12 inches above the inlet air termination.
Figure 9A: Vertical Termination (100,000 - 150,000 BTU/Hr Models)
The air inlet and exhaust outlet terminations must be at
least 12 inches above the roof line or anticipated snow
levels. See figure 9A below.
Note: See “Venting Additional Polaris® Units” below if
installing more than one Polaris® gas water heater.
Venting Additional Polaris® Units
(100,000 - 150,000 BTU/hr Models)
When using two (2) Polaris® units, install vent terminations
using either Method A or Method B below:
10
When using three or more Polaris® units, install vent
terminations per Method C or Method D:
Loading...