Kenmore 153.335963 - Manual (Page 20)

Installation Instructions (cont’d)
Venting (cont’d)
CONNECTING PVC PIPE VENT TO BLOWER
1
. The manufacturer has supplied a 3" PVC Schedule 40 street
elbow for connection to the water heater when turning imme­
diately horizontally off the blower. Place the elbow in the
required direction on the blower and using 3 sheet metal
screws, attach the elbow.
2, If there is to be a vertical run of vent from the blower, the 3"
PVC pipe must be attach^ to the blower using 3 sheet metal
3. If the optional 2" vent piping is to be used (40,000 BTU/HR
models only), the 2" street elbow, 3" to 2" reducer and 3”
(minimum) section of 3” PVC or ABS pipe must be supplied
locally. The 3” (minimum) section of 3’ PVC or ABS pipe
must be attached to the blower using 3 sheet metal screws.
Additionally, you must seal all joints using a suitable silicone
sealer such as GE RTV-103 or equivalent.
VENTING THROUGH A ROOF
ALL MODELS
1. The water heater requires its own (separate) venting system.
2. It cannot be connected to existing vent piping or chimney.
3. It must terminate vertically to the outdoors.
4. Total vertical and horizontal vent runs cannot exceed 35 feet.
5. Typical installation(s) shown below.
6. Refer to “Cementing PVC, ABS or CPVC Pipe and Fittings”
on page 19 and “Connecting Vent to Blower” on page 20.
VENT CAP MUST BE
POSITIONED
COWNWARD
MAINTAIN listed
CLEARANCE
EXHAUST VERTICAL ы
VENT TOTAL VERTICAL AND
HORIZONTAL RUNS
CANNOT EXCEED 20
РЕЕТ WITH A MAXIMUM
Of THREE 90' ELBOWS
(10' MAXIMUM IF 2"
VENT PIPING IS USED
ON 40,000 BTUIHR.
MODELSI
20