17
fIGure 16.
Horizontal runs must be securely supported at 3 1/2 foot (1 m)
intervals and vertical runs supported at 5 foot (1.5 m) intervals.
fIGure 17.
ventInG throuGh an outsIde wall
a. all 75 Gallon Models
In the carton is supplied:
1. Two 3” inlet and outlet PVC Schedule 40 - 45° vent caps.
2. One 3” CPVC Schedule 80 - 90° elbow; used to connect the
outlet
vent pipe to the water heater when the
outlet
vent pipe is to be
turned horizontally directly off the blower.
3. One 5’ (1.5 m) section of 3” CPVC Schedule 40
outlet
vent pipe.
(More may be required and must be purchased locally.)
fIGure 18.
1. The water heater requires its own (separate) venting system.
2.
only
3” CPVC Schedule 40 piping and fittings are acceptable
materials on the first five feet of the
outlet
vent system.
3. 3” PVC, ABS, or CPVC Schedule 40 piping and fittings are
acceptable materials for the
inlet
vent system and for the
outlet
vent system after the first five feet.
4. The unit cannot be connected to existing vent piping or chimney.
5. When venting through an outside wall, the vents must terminate
horizontally to the outdoors.
B. all 50 Gallon 65,000 Btu/hr Models
In the carton is supplied:
1. Two 3”
inlet
and
outlet
PVC Schedule 40 - 45° vent caps.
2. One 3” ABS Schedule 40 - 90° street elbow; used to connect the
outlet
vent pipe to the water heater when the
outlet
vent pipe is
to be turned horizontally directly off the blower.
3. One 5’ (1.5 m) section of 3” ABS Schedule 40
outlet
vent pipe.
(More may be required and must be purchased locally.)
fIGure 19.
1. The water heater requires its own (separate) venting system.
2.
only
3” CPVC or ABS Schedule 40 piping and fittings are acceptable
materials on the first five feet of the
outlet
vent system.
3. 3” PVC, ABS, or CPVC Schedule 40 piping and fittings are
acceptable materials for the
inlet
vent system and for the
outlet
vent system after the first five feet.
4. The unit cannot be connected to existing vent piping or chimney.
5. When venting through an outside wall, the vents must terminate
horizontally to the outdoors.
