State 100280793 Manuel utilisateur

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Modèle: 100280793

Taper: Manuel utilisateur

Ce manuel convient également à

100227396

SERVICING SHOULD ONLY BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN

Kit Instructions

COMMON VENT KIT (PVC AND DURAVENT)

100280793_2000539084

PRINTED 0317

Contents

INTRODUCTION ............................................................2

Models Covered ........................................................ 2

Additional Information ................................................ 3

PVC COMMON VENT KIT INSTRUCTIONS

(100227396 OR 100223775) ..........................................4

PVC Parts List ........................................................... 4

Instructions ................................................................ 6

Assembly ................................................................... 9

POLYPROPYLENE COMMON VENT KIT

INSTRUCTIONS

(100227395 OR 100223774) ....................................... 11

Polypropylene Parts List ........................................... 11

Instructions ............................................................... 14

Assembly .................................................................. 15

INTRODUCTION

These instructions cover how to install the 120, 150 to 250 models or 300 to 500 models of water heaters in a

common direct vent kit. You may not combine water heaters from different groups. This kit may be used as part of a

common vent installation of up to three 120 models or up to three of any combination of the models in the 150 to 250

group or the 300 to 500 group listed in Models Covered (page 2) in a direct vent conguration.

Check local code requirements regarding common venting of plastic pipe. In Canada, all plastic pipe must be listed to

ULC S636.

MODELS COVERED

120 MODELS, SERIES 200/201/300/301

• A. O. SMITH MODELS: BTH 120(A)

• American Models: (A)HCG3 60T120 3 (N),(P)

• State Models: SUF 60120(N,P)E(A)

150 TO 250 MODELS, SERIES 200/201/300/301

• A. O. SMITH MODELS:

∙ BTH 150(A)

∙ BTH 199(A)

∙ BTH 250(A)

• American Models:

∙ (A)HCG3100T 150

∙ (A)HCG3100T 199

∙ (A)HCG3100T 250

∙

• State Models:

∙ SUF 100150(N,P)E(A)

∙ SUF 100199(N,P)E(A)

∙ SUF 100250(N,P)E(A)

• Reliance Models:

∙ RUF 100199(N,P)E

300 TO 500 MODELS, SERIES 200/201/300/301

• A. O. SMITH MODELS:

∙ BTH 300(A)

∙ BTH 400(A)

∙ BTH 500(A)

• American Models:

∙ (A)HCG3119T 300

∙ (A)HCG3119T 400

∙ (A)HCG3119T 500

• State Models:

∙ SUF 119300(N,P)E(A)

∙ SUF 119400(N,P)E(A)

∙ SUF 119500(N,P)E(A)

NOTE: These instructions are included with a kit that connects one water heater to a common vent system. Study this

instruction to determine how many kits you may need for your installation.

ADDITIONAL INFORMATION

This kit instruction is a supplement to the Instruction Manual that is supplied with the water heater. The multiple

heater installation must satisfy all the requirements of the Instruction Manual as well as the requirements of this kit

instruction. The installer may also consult with installation instructions from the vent manufacturer. In the event of any

conict between the documents, these instructions take precedence.

Installations must comply with applicable national, state, and local codes. Check local code requirements regarding

the use of PVC pipe. In Canada, all plastic pipe must be listed to ULC S636.

NOTE: The use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel® (polyphenolsulfone) in non-metallic

venting system is prohibited. Covering non-metallic vent pipe and ttings with thermal insulation is prohibited.

PVC COMMON VENT KIT INSTRUCTIONS

(100227396 OR 100223775)

PVC PARTS LIST

Each kit contains the adapters needed to connect the vent and air intake system to one heater. Additional parts are

needed to create the connectors, common sections and vent terminations. A list of additional parts is included below

for your convenience.

For example, to install a common vent for two heaters requires two common vent kits (see Table 1 and Table 2), the

additional parts listed in Table 3 or Table 4, and the necessary PVC parts selected to t the installation.

FIGURE 1. PVC COMMON VENT KIT (120 TO 250 MODELS)

(ONE KIT NEEDED FOR EACH HEATER)

TABLE 1. PVC COMMON VENT KIT PARTS LIST (120 TO 250 MODELS)

Item

No.

Kit

No.

Description

Kit

Supplied

100227396

VENT

ADAPTER,OUTLET,6”,PP,DURAVENT

2 VENT ADAPTER,PP/

PVC,STAINLESS,DURAVENT

3 INSTRUCTION,COMMON VENT KIT 1

FIGURE 2. PVC COMMON VENT KIT (300 TO 500 MODELS) (ONE KIT NEEDED FOR EACH HEATER)

TABLE 2. PVC COMMON VENT KIT PARTS LIST (300 TO 500 MODELS)

Item

No.

Kit

No.

Description

Kit

Supplied

100223775

BACKFLOW PREVENTER, 300-500, DURAVENT 1

2 VENT ADAPTER, 300-500, SS, DURAVENT 1

FIGURE 3. ADDITIONAL PARTS REQUIRED - PVC ( FOR US ONLY)

TABLE 3. FIELD SUPPLIED PARTS - PVC (FOR US ONLY)

Item

No.

Kit

No.

Description

Additional

Required

1 100110441 PLATE,WALL COVER,0.052”,GALV,STEEL 4

2 100226846 VENT SCREEN COUPLING ASSEMBLY,6” 1

3 100078784 AIR INTAKE TERMINAL 1

TABLE 4. FIELD SUPPLIED PARTS - ULC S636 PVC (FOR CANADA)

Kit

No.

Description

Additional

Required

100110441 PLATE,WALL COVER,0.052”,GALV,STEEL 4

IPEX 196142 (PVC) or

IPEX 197141 (CPVC)

COUPLING FOR VENT OUTLET 1

IPEX 196140 (PVC) or

IPEX 197203 (CPVC)

ELBOW FOR AIR INLET 1

100041999 SCREEN 2

SUPPORTS

You will need enough supports so that you can install one every 3 feet of horizontal run and every 5 feet of vertical run

for both the inlet and vent pipe. Supports may be eld supplied metal strapping or equivalent.

CONDENSATE DRAIN

Each water heater must have a separate condensate drain line running to an open drain. Follow the directions in the

water heater’s instruction manual. Do not use a common condensate drain line for multiple heaters.

INSTRUCTIONS

PHYSICAL LAYOUT - GENERAL

This kit may be used as part of a common vent installation of up to 3 120 models or up to 3 of any combination of

the models in the 150 to 250 group or the 300 to 500 group listed in Models Covered (page 2) in a direct vent

conguration. You may not mix water heaters from the different groups. Check local code requirements regarding

common venting of plastic pipe. In Canada, all plastic pipe must be listed to ULC S636.

NOTE: Do not use these parts to combine these water heaters with any other heater or gas appliance.

This kit is meant to common vent water heaters that are physically close to each other and facing the same direction.

Additional limits of this kit are:

• All heaters are on the same oor.

• Through the wall vent and air inlet terminations.

• All heaters are in the same room (pressure zone).

• No change to the system layout, as shown in Figure 4 (page 7), except as explained in these instructions.

• The adapters shown in Figure 1 (page 4) and Figure 2 (page 5) must not be modied.

The system layout must be planned to minimize the linear length and number of ttings in the system. The kit is

meant to accommodate heaters that maintain the recommended 24” clearance between the water heaters, (52” on

center for the 120 to 250 models and 57” on center for the 300 to 500 models). Consult the water heater’s installation

instructions for proper clearances for service. Consult the water heater’s instruction manual and see Figure 6 (page

9) for requirements for locating the air intake and vent terminals.

The common vent is the section of the vent and air inlet piping where the gases from all of the heaters ow together,

See Figure 4. The maximum equivalent length straight pipe and elbows of the common sections is 50 feet. The

minimum equivalent length of the common sections is 3 feet. Each 90° elbow is equal to 5 feet and a 45° elbow is

equal to 2½ feet. The maximum number of elbows is three. The air intake terminal (90° elbow) is not included in the

equivalent length.

MAXIMUM EQUIVALENT LENGTHS

The maximum equivalent lengths of the system are:

• Common section: 50 feet

• Connector height: 110”

• Heater spacing: 24” clearance (see above)

If it is necessary to modify the connectors or heater spacing, the equivalent length of additional vent connector, heater

spacing or elbows must be deducted from the 50 equivalent feet of the common vent or common air intake sections.

COMMON VENTING

AIR INTAKE TERMINAL

(FIELD SUPPLIED PARTS,

SEE TABLE 3 OR 4)

6"Ø VENT SCREEN

COUPLING ASSEMBLY

(FIELD SUPPLIED PAR

TS,

SEE TABLE 3 OR 4)

VENT ADAPTER PP/PVC, STAINLESS DURAVENT

(KIT SUPPLIED PARTS) (REFER TO TABLES 1 & 2)

VENT ADAPTER, OUTLET 6", PP, DURAVENT

(KIT SUPPLIED PARTS) (SEE TABLES 1 & 2)

INDIVIDUAL VENT

CONNECTOR

FIGURE 4. DEFINITION OF SYSTEM SECTIONS - PVC

FIGURE 5. SANITARY TEE

Figure 4 shows the system constructed with straight tees. However, you can use also use sanitary tees, shown in

Figure 5, as an acceptable substitute, provided they are arranged so that the ows are in the directions indicated in

Figure 5.

The individual vent connectors attach the heaters to the common vent. The exhaust vent connectors are attached

to the water heater with the parts in the kit. The air inlet connectors are attached with PVC reducing ttings to the

heater’s PVC coupling. As shown in Figure 4, the individual vent connectors consist of vertical and horizontal sections

that connect the heater outlets to the common vent. Using different lengths of pipes, the height of the horizontal

sections may be adjusted to be from 80” to 110” from the bottom of the heater to the center-line of the horizontal

section. The combustion air and exhaust vent sides of the system may be different heights, but each must meet the

80” to 110” height requirement.

SUPPORT

DO NOT SUPPORT WEIGHT OF VENT SYSTEM ON THE HEATER. Supports must be installed every 3 feet of

horizontal run and 5 feet of vertical run for both the inlet and vent pipe. Supports may be made of eld supplied metal

strapping or equivalent. The common vent outlet piping must be sloped upwards toward the vent terminal at least 1/4”

per foot.

TERMINATIONS

See Figure 6 (page 9) for location requirements of horizontal vent and intake terminations. You must use the

terminations found in the additional required parts list. The air inlet terminal is a 90° elbow pointing down and the vent

outlet is the end of a straight pipe section, facing horizontally.

Vent Gas Direction

Combustion Air Direction

AIR INTAKE

A =

24” MINIMUM INCREASE

TO 40” INCHES IN COLD CLIMATES

6” MAX

VENT IN

LEFT

POSITION

12” ABOVE GRADE

OR MAXIMUM EXPECTED

SNOW LEVEL

FIGURE 6. WALL TERMINATIONS

ASSEMBLY

All joints that are PVC to PVC should be attached using approved solvent glue. See the water heater’s Instruction

Manual for additional details. Start the assembly at the wall termination and proceed towards the middle of the

common system. Next, start assembly at the appliances. This will allow small adjustments near the tees over the

heaters.

Wall Penetration - The general instructions for penetrating the side wall are found in the Side Wall Terminations

section of the water heater’s instruction manual. The common vent system may not be used with the concentric or low

prole vent terminals as described in the instruction manual supplied with the water heater.

For each penetration, cut a 7” diameter hole through the structure. First, attach the nal terminations for the exhaust

outlet and air intake to their nal, straight pipes. Outside the building, insert the last straight pipe sections through the

wall plates and then, through the penetration. Run a bead of eld-supplied silicone sealant around the wall plate and

press it in place. Inside the building, place a second wall plate over each of the pipes and seal the plates to the wall

with silicone sealant. After the vent system is completely set up, nish the penetrations by sealing the gap between

the pipe and wall plates with a bead of silicone sealant.

VENT

The exhaust vent is connected to the heater by two adapters. The vent outlet adapter/ backow preventer is

connected to the aluminum exhaust vent elbow by inserting the male end of the vent outlet adapter into the outlet

and securing it with the rubber boot and hose clamps (supplied with the water heater as shown in Figure 7). Next,

the Polypropylene/ PVC adapter is inserted into the outlet of the backow preventer and secured with the attached

locking ring. After that, the remainder of the exhaust vent side of the common system is composed of eld-supplied

Schedule-40 PVC pipe and ttings.

Straight pipe to tee - Use eld-supplied straight pipe sections to reach the horizontal part of the system that runs

above the heaters. The total height from the bottom of the heater to the center line of the horizontal must be from 80”

to 110”.

Locking Ring

120 - 250 MODELS 300 - 500 MODELS

FIGURE 7. OUTLET VENT ADAPTER TO PVC

INLET AIR SIDE

Attaching to the inlet - The water heater’s air inlet is either a 3” or 4” PVC tting (Figure 8). For the 120 to 250 models,

attach a 3” to 4” reducing adapter and then, a 4” to 6” reducing adapter to begin the 6” vent connector. The 300 to 500

models require only a 4” to 6” reducing adapter. A 90° elbow is then attached to turn the connector vertical, towards

the remainder of the system.

FIGURE 8. PVC AIR INLET

Straight pipe to tee - A straight pipe section is used to run from the elbow to the bottom of the tee. The length may be

adjusted so that the height to the center line of the horizontal run is 80” to 110” from the base of the heater. A straight

section is not required – you may insert the base of the tee into the female end of the elbow.

COMMON SECTIONS

The common sections are the pipes that carry the vent gas or intake air to and from the outside. Each pipe must

extend from the tee over the heaters to the outside/ outdoors etc. It is preferred to run the air and vent sections next

to each other, over a similar path as shown in Figure 4 (page 7). However, differences may be needed in the eld.

The requirements for both the air intake and vent common sections are:

• The equivalent length of straight pipe and elbows of each common section will be limited to between 3 feet and 50

feet. Each 90° elbow is equivalent to 5 feet pipe and a 45° elbow is equivalent to 2½ feet of pipe. The maximum

number of elbows is three. The terminal elbows are not considered in calculating maximum or minimum equivalent

lengths;

120 - 250 MODELS 300 - 500 MODELS

LOCKING

RING

• Each common section may include vertical sections, but the nal terminations must be horizontal through the wall.

Vertical section lengths must be included in the total equivalent length.

• The horizontal vent section must be sloped upward at least 1/4” per foot towards the vent terminal and

• Each section must be supported as detailed in the above procedure.

TERMINATIONS

The placement of the vent and air terminals must follow the guidelines for terminal location found in the water

heater’s Instruction Manual. All required clearances to building features are the same as found in the water heater’s

Instruction Manual. The combustion vent terminal is a coupling with a screen that nishes the end of the pipe. The air

inlet terminal must use the 90° elbow pointed down as shown in Figure 6 (page 9). Clearances to the ground and

to anticipated snow level must be as shown in Figure 6. The ends of both terminals must be protected with the bird

screens supplied with the terminations.

POLYPROPYLENE COMMON VENT KIT INSTRUCTIONS

(100227395 OR 100223774)

This kit instruction is a supplement to the Instruction Manual that is supplied with the water heater. The multiple

heater installation must satisfy all the requirements of the Instruction Manual as well as the requirements of this kit

instruction. The installer may also consult with installation instructions from the vent manufacturer. In the event of any

conict between the documents, these instructions take precedence. The kit is meant to accommodate heaters that

maintain the recommended 24” clearance between the water heaters, (52” on center for the 120 to 250 models and

57” on center for the 300 to 500 models).

The heaters listed previously may also be common vented using a Polypropylene system manufactured by M&G

Duravent. This is a system listed to UL 1738 and ULC S636 and may be required in some localities.

POLYPROPYLENE PARTS LIST

Each kit contains the adapters needed to connect the vent and air intake system to one heater. Additional parts are

needed to create the connectors, common sections and vent terminations. A list of additional parts is included below

for your convenience.

For example, to install a common vent for two heaters requires two common vent kits shown in Figure 9, the

additional parts listed in Table 7, and the necessary polypropylene parts needed to extend the pipe systems between

the heaters and the terminations.

FIGURE 9. POLYPROPYLENE COMMON VENT KIT

(120 - 250 MODELS) (ONE KIT NEEDED FOR EACH HEATER)

TABLE 5. POLYPROPYLENE COMMON VENT KIT (120 - 250 MODELS)

Item

No.

Part

No.

Description

Kit

Supplied

100227395

VENT ADAPTER,OUTLET,6”,PP,DURAVENT 1

2 VENT ADAPTER,INLET,6”,PP,DURAVENT 1

3 VENT ADAPTER CONNECTOR,DURAVENT 1

FIGURE 10. POLYPROPYLENE COMMON VENT KIT (300 - 500 MODELS) (ONE KIT NEEDED FOR EACH HEATER)

TABLE 6. POLYPROPYLENE COMMON VENT KIT (300 -500 MODELS)

Item

No.

Part

No.

Description

Kit

Supplied

100223774

BACKFLOW PREVENTER, 300-500, DURAVENT 1

2 APPLIANCE-INCREASER, 300-500, DURAVENT 1

UV RESISTANT

(BLACK)

UV RESISTANT

(BLACK)

FIGURE 11. ADDITIONAL REQUIRED PARTS - POLYPROPYLENE

TABLE 7. ADDITIONAL REQUIRED PARTS - POLYPROPYLENE

PARTS LIST

Item

No.

Part No.

Duravent

Stock No.

Description

N/A 810009776

VENT PIPE,6”,72”,PP,DURAVENT

2 N/A 810009774 VENT PIPE,6”,36”,PP,UV,DURAVENT

3 N/A 810009772 VENT PIPE,6”,12”,PP,DURAVENT

4 N/A 810009787 VENT TEE W/CAP,90,6”,PP,DURAVENT

5 N/A 810009783 ELBOW,90,6”,PP,UV,DURAVENT

6 N/A 810004276 BIRD SCREEN,6”,DURAVENT

7 N/A 810009782 ELBOW,90,6”,PP,DURAVENT

8 100110441 N/A PLATE,WALL COVER,0.052”,GALV,STEEL

Notes:

1. ITEMS 1 THRU 7 ARE FIELD SUPPLIED ONLY

2. LOCKING RINGS ARE PREINSTALLED ON PIPES, TEES, AND ELBOWS

SUPPORTS

You will need enough supports so that you can install one every 3 feet of horizontal run and every 5 feet of vertical run

for both the inlet and vent pipe. Supports may be eld supplied metal strapping or equivalent.

CONDENSATE DRAIN

Each water heater must have a separate condensate drain line running to an open drain. Follow the directions in the

water heater’s Instruction Manual. Do not use a common condensate drain line for multiple heaters.

INSTRUCTIONS

PHYSICAL LAYOUT - GENERAL

The requirements for the layout of the Polypropylene common vent system, required lengths and terminal locations

are the same as for the PVC vent. The overall layout is shown in Figure 12. Consult the previous instructions for

additional requirements.

INDIVIDUAL VENT

CONNECTOR

6"Ø ELBOW

(FIELD SUPPLIED

PARTS)

INLET

VENT ADAPTER

(KIT SUPPLIED PARTS)

(SEE TABLES 4 & 5)

ADAPTER

CONNECTOR

(KIT SUPPLIED

PARTS, SEE

TABLES 4 & 5)

6 "Ø PIPE/ 12”

(FIELD SUPPLIED

PARTS)

6"Ø ELBOW UV RESISTANT

6"Ø BIRD SCREEN

(FIELD SUPPLIED

PARTS)

6"Ø BIRD SCREEN

(FIELD SUPPLIED

PARTS)

6"Ø PIPE

36" UV RESISTANT

(FIELD SUPPLIED

PARTS)

TERMINAL SECTIONS

(UV RESISTANT)

COMMON VENTING

OUTLET VENT ADAPTER

(KIT SUPPLIED PARTS)

(SEE TABLES 4 & 5)

FIGURE 12. DEFINITION OF SYSTEM SECTIONS - POLYPROPYLENE

NOTE: In both the air inlet and vent outlet sides, the female end of the pipe or tting is always towards the

terminations.

The general instructions for penetrating the side wall are found in the Side Wall Terminations sections of the water

heater’s Instruction Manual. The common vent system may not be used with concentric or low prole vent terminals.

All pipe and terminations that are outside the structure should be UV protected (black) parts.

SUPPORT

DO NOT SUPPORT WEIGHT OF VENT SYSTEM ON THE HEATER. Supports must be installed every 3 feet of

horizontal run and 5 feet of vertical run for both the inlet and vent pipe. Supports may be made of eld supplied metal

strapping or equivalent. The common vent outlet piping must be sloped upwards toward the vent terminal at least 1/4”

per foot.

TERMINATIONS

See Figure 6 (page 9) for location requirements of horizontal vent and intake terminations. You must use the

terminations found in the additional required parts list. The air inlet terminal is a 90° elbow pointing down and the vent

outlet is the end of a straight pipe section, facing horizontally.

ASSEMBLY

For each penetration, cut a 7” diameter hole through the structure. First, attach the nal termination for the air intake

to its nal straight pipe. Outside the building, insert the male end of the last straight pipe section through the wall plate

and then, through the penetration. This last section should be the UV protected pipe. Run a bead of eld-supplied

silicone sealant around the wall plate and press it in place. Inside the building, place a second wall plate over the

male end and seal the plate to the wall with silicone sealant. After the vent system is completely set up, nish the

penetration by sealing the gap between the pipe and wall plates with a bead of silicone sealant. Remove the rubber

gasket at the end of the inlet and outlet and insert the bird screen into the groove that is now available.

VENT

The vent adapter and back-ow preventer (Figure 13) is connected to the aluminum heater outlet and condensate

trap by inserting the male end of the vent outlet adapter into the outlet and securing it with the rubber boot and hose

clamps (supplied with the water heater).

Straight pipe to tee - Use eld-supplied straight vent sections to reach the horizontal part of the system that runs

above the heaters Note that the ow in a polypropylene vent pipe is always out of the female end. The total height

from the bottom of the heater to the center line of the horizontal must be from 80” to 110”.

LOCKING RING

120 - 250 MODELS 300 - 500 MODELS

FIGURE 13. OUTLET VENT ADAPTER TO POLYPROPYLENE

INLET AIR SIDE

Adapter to inlet - The male end of the air inlet adapter (Figure 14) is inserted into the water heater air inlet (a PVC

tting). It is held in place with the connector adapter supplied in this kit. A 90° elbow is inserted into the female end

adapter to turn the system in a vertical direction.

Straight pipe to tee - A straight pipe section is used to run from the elbow to the bottom of the tee. The length may be

adjusted so that the height to the center line of the horizontal run is 80” to 110” from the base of the heater. A straight

section is not required – you may insert the base of the tee into the female end of the elbow.

FIGURE 14. AIR INLET ADAPTER

COMMON SECTIONS

The common sections are the pipes that carry the vent gas or intake air from multiple units to and from the outside.

Each pipe must extend from the tee over the heaters to the outside/ outdoors etc. It is preferred to run the air and

vent sections next to each other, over a similar path as shown in Figure 12 (page 14). However, differences may be

needed in the eld. The requirements for both the air intake and vent common sections are:

• The equivalent length of straight pipe and elbows of each common section will be limited to between 3 feet and 50

feet. Each 90° elbow is equivalent to 5 feet pipe and a 45° elbow is equivalent to 2½ feet of pipe. The maximum

number of elbows is three. The terminal elbows are not considered in calculating maximum or minimum equivalent

lengths.

• Each common section may include vertical sections, but the nal terminations must be horizontal through the wall.

Vertical section lengths must be included in the total equivalent length.

• The horizontal vent section must be sloped upward at least 1/4” per foot towards the vent terminal.

• Each section must be supported as detailed in the above procedure.

TERMINATIONS

The placement of the vent and air terminals must follow the guidelines for terminal location found in the water

heater’s Instruction Manual. All required clearances to building features are the same as found in the water heater’s

Instruction Manual. The combustion vent terminal is a coupling with a screen that nishes the end of the pipe. The air

inlet terminal must use the 90° elbow pointed down as shown in Figure 6 (page 9). Clearances to the ground and

to anticipated snow level must be as shown in Figure 6. The ends of both terminals must be protected with the bird

screens supplied with the terminations.

NOTES

For additional information contact:

1-800-527-1953

www.hotwater.com

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Modèle: 100280793

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