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

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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.

This manual covers model numbers:

United States

Canada

PG10* 34-100-2NV or 2PV

PR 100-34 2NV or 2PV

PG10* 34-130-2NV or 2PV

PR 130-34 2NV or 2PV

PG10* 50-130-2NV or 2PV

PR 130-50 2NV or 2PV

PG10* 34-150-2NV or 2PV

PR 150-34 2NV or 2PV

PG10* 50-175-3NV or 3PV

PR 175-50 3NV or 3PV

PG10* 50-199-3NV or 3PV

PR 199-50 3NV or 3PV

PG10* 100-199-3NV or 3PV

PR 199-100-3NV or 3PV

* Indicates warranty period

 

Note:

The manufacturer of this water heater recommends that it be professionally installed by trained and qualified service professionals.

Polaris®

Residential Gas

Water Heater

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:

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.

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 Unpacking the Water Heater

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

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.

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.

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

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

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.

34/50 GAL. MODEL SHOWN

The water heater should be located in an area not subject 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 materials 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 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 3A: 2” Condensation Trap Installation

100,000 - 150,000 BTU/Hr Models

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

 

VENT PIPE SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 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 drain pan.

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 plumbing 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. 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 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:

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.

Figure 6: Minimum Clearances for Inlet/Outlet and Concentric Vent

US 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.

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.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.

**Clearance in accordance with local installation codes and the requirements of the gas supplier.

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

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

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.

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.

Figure 9A: Vertical Termination (100,000 - 150,000 BTU/Hr Models)

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:

When using three or more Polaris® units, install vent terminations per Method C or Method D:

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