Venting
To insure proper venting of this
The combustion and ventilation air flow must not be obstructed.
The power vent water heater requires its own (separate) venting system. It cannot be connected to an existing vent pipe or chimney. It must be terminated to the outdoors. Failure to properly install the venting system can result in asphyxiation, a fire or explosion and cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE.
The vent pipe from the water heater must slope upward 1/8” per five feet for any horizontal run.
All vent gases must be completely vented to the outdoors of the structure (dwelling).
FIGURE28.
Chemical vapor corrosion of the flue and vent system may occur. If air for combustion contains certain chemical 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.
Horizontal runs must be securely supported at 3 1/2” foot intervals and vertical runs supported at 5 foot intervals.
FIGURE29.
VENTING THROUGHAN OUTSIDE WALL:
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY (See rating plate for BTU/HR rating)
3” PVC, ABS or CPVC Schedule 40 vent piping:
•A 3” PVC Schedule
•A 3” PVC, ABS or CPVC Schedule
•3” PVC, ABS or CPVC Schedule 40 pipe (must be supplied locally).
FIGURE30.
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
•The water heater requires its own (separate) venting system.
•3” PVC, ABS or CPVC Schedule 40 piping and fittings are acceptable materials for the vent system on all 75 gallon 70,000 and 75,000 BTU/HR models.
•It cannot be connected to existing vent piping or chimney.
•It must terminate horizontally to the outdoors.
19
