Installation Instructions
Venting (cont'd)
VENTING THROUGH A ROOF
ALL MODELS
3"°PVC, ABS or CPVC Schedule 40 vent piping:
1.A Y"PVC Schedule
2.3 PVC, ABS, or CI VC Schedule 40 piping and fittings are acceptable materials for the vent system on all models and must be supplied locally.
ALL MODELS _ OPTIONAL 2" VENT PIPING
2°, PVC, ABS or CPVC Schedule 40 vent piping:
1.A wire screen to fit a 7" PVC, ABS or CPVC Schedule 40- 45 ° vent cap is supplied with the water heater.
2.A 3" PVC, ABS or CPVC Schedule 40 pipe, minimum
length of Y" (must be supplied locally), to make vent connec- tion at the blower outlet.
3.A 3" to 2" PVC, ABS or CPVC Schedule 40 reducer (must be supplied locally).
4.2" and Y" PVC, ABS, or CPVC Schedule 40 piping and fit- tings are acceptable materials for the vent system on all mod- els and must be supplied locally.
SCHEDULE 40 PiPE
2" PVC, ABS OR CPVC
3"REDUCERTO 2" PVC, ABS OR CPVC
SCHEDULE3" PVC, ABS40ORPIPECPVC(MINIMUM
LENGTH 3")
(cont'd)
•The water heater requires its own (separate) venting system.
•lr cannot be connected to existing vent piping or chimney.
•lr must terminate vertically to the outdoors
•"I}pical installation(s) shown below.
•Refer to Cementing I VC, ABS or CI VC Pipe and Fittings
on pages
90_STREET ELL
45 _VENT CAP _ | SEAL AROUND |
SCREEN_FLASHING
VENT CAP MUST
BE POSITIONED
DOWNWARDMAINTAIN
11 USTED
CLEARANCE
45 ° ELBOW
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| SUPPORT | LATERALS | |
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| MIN, | EVERY 3'K | |
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| f | POSITION | FIRESTOP | ||
MAINTAIN | LISTED | _ _ _ | H |
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CLEARANCE |
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| _ | _ | EXHAUST | VERTICAL | |
CERTIFIED |
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| TOTAL | VERTICAL | |
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| AND HORIZONTAL | |||
WATER | HEATER | _ |
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| RUNS | . SEE ITEM | |||
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BELOW.
IVENT
)\
6.The total vertical and horizontal vent runs cannot exceed the
maximum length with the number of 90 ° elbows as specified in the following tables. Ifmore elbows are required, the vent-
ing distance must be reduced 5 feet for every 90 ° elbow."
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