State Industries Commercial Gas Water Heater Venting cont’d, Venting Through AN Outside Wall

Installing the New Water Heater (cont’d)

Venting (cont’d)

WARNING

Be sure vent pipe is properly connected to prevent escape of dangerous flue gases which could cause dead- ly asphyxiation.

WARNING

Chemical vapor corrosion of the flue and vent system may occur if air for combustion contains certain chem- ical vapors. Spray can propellants, cleaning solvents, refrigerator and air conditioner refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes, bleach and process chemicals are typical compounds which are potentially corrosive.

3″ ABS SCHEDULE 40
90° STREET
OUTLET ELBOW	5' SCHEDULE
SUPPLIED	40 ABS OUTLET
3″ PVC SCHEDULE	PIPE SUPPLIED
40 90° STREET
INLET ELBOW
REQUIRED	SCHEDULE
	40 PVC INLET PIPE
	REQUIRED

ONE 3″ SCHEDULE 40 PVC 45° INLET ELBOW SUPPLIED

ONE 3″ SCHEDULE 40 PVC 45° OUTLET ELBOW SUPPLIED

31⁄2'

STRAPPING

Horizontal runs must be securely supported at 31⁄2 foot intervals and vertical runs supported at 5 foot intervals.

VENTING THROUGH AN OUTSIDE WALL

In the carton is supplied:

1.Two 3″ inlet and outlet PVC Schedule 40 - 45° vent caps.

2.A 3″ ABS Schedule 40 - 90 street ell; used to connect the out- let vent pipe to the water heater when the outlet vent pipe is to be turned horizontally directly off the blower.

3.A 5‘ section of 3″ ABS Schedule 40 outlet vent pipe (more may be required and must be supplied locally).

1.The water heater requires its own (separate) venting system.

2.Only 3″ ABS Schedule 40 piping and fittings are acceptable materials on the first five feet of the outlet vent system.

3.3″ PCV, ABS, or CPVC Schedule 40 piping and fittings are acceptable materials for the inlet vent system and for the out- let vent system after the first five feet.

4.It cannot be connected to existing vent piping or chimney.

5.When venting through an outside wall, the vents must termi- nate horizontally to the outdoors.

14