State GTS-140-PIH User Manual download pdf (Page 11)

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Installaon

Installaon Manual

-Exhaust vent (ABS, PVC, CPVC, or polypropylene vent)-

The Indoor model can be vented with ABS, PVC, CPVC, or polypropylene (temperature rated up to at

least 149 °F). Vent material certified to ULC S636 standards is recommended in the USA. In Canada,

plastic venting must be certified to ULC S636 standards.

• The maximum length of exhaust vent piping must not exceed 70 ft. (21.3 m) for 3” venting, which

depends on the elevation where the water heater is installed, and 100 ft. (30.5 m) for 4” venting

(deducting 5 ft. (1.5 m) for each elbow used in the venting system). Do not use more than 5

elbows. See the table below.

• When the horizontal vent run exceeds 5 ft. (1.5 m), support the vent run at 3 ft. (0.9 m) intervals

with overhead hangers.

Item Material UnitedStates Canada

Exhaust pipe and

Fittings

Schedule 40 PVC ANSI/ASTM D1785

ULC S636 Certified

Materials Only

PVC-DWV ANSI/ASTM D2665

Schedule 40 CPVC ANSI/ASTM F441

Schedule 40 ABS-DWV ANSI/ASTM D2661

Polypropylene UL-1738

Pipe Cement/Primer

PVC ANSI/ASTM D2564

CPVC ANSI/ASTM F493

ABS ANSI/ASTM D2235

NOTE: Do NOT Use Cellular Foam Core Pipe

*Foreachelbowadded,deduct5ft.(1.5m)frommax.ventlength.

For details on the vent connection, refer to p. 13 to 16.

No.of

Elbow

2"venting 3"venting 4"venting

Upto3,000ft Upto3,000ft Upto6,000ft Upto10,100ft Upto10,100ft

0 6.5 ft. (2.0 m) 70 ft. (21.3 m) 40 ft. (12.2 m) 25 ft. (7.6 m) 100 ft. (30.5 m)

1 1.5 ft. (0.5 m) 65 ft. (19.8 m) 35 ft. (10.7 m) 20 ft. (6.1 m) 95 ft. (29.0 m)

2 N/A 60 ft. (18.3 m) 30 ft. (9.1 m) 15 ft. (4.6 m) 90 ft. (27.4 m)

3 N/A 55 ft. (16.8 m) 25 ft. (7.6 m) 10 ft. (3.0 m) 85 ft. (25.9 m)

4 N/A 50 ft. (15.2 m) 20 ft. (6.1 m) N/A 80 ft. (24.4 m)

5 N/A 45 ft. (13.7 m) N/A N/A 75 ft. (22.9 m)

Excludes vent terminators, termination elbows, or rain caps.

Max.VerticalorHorizontal(Total)VentLengh

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 55 56

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State GTS-140-PIH User Manual Page 11