Installation Instructions (cont'd)
Venting (cont'd)
CONNECTING PVC PIPE VENT TO BLOWER
I.The manufacturer has supplied a 3" PVC Schedule 40 street elbow for connection to the water heater when turning immeo
diately horizontally off the blower. Place the elbow in the
required direction on the blower and using 3 sheet metal screws, attach the elbow.
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,a | [L[_T_ | "- |
| I | I |
2.If there is to be a vertical run of vent from the blower, the 3"
PVC pipe must be attache_ to the blower using 3 sheet metal screws.
VENTING THROUGH A ROOF
ALL MODELS
I. 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 instMlation(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.
SEAL AROUND COLLAR
AND FLASHING
. SCREEN | / |
VENT CAP MUST BE |
|
POSITIONED |
|
COWNWARD |
|
18" MIN | MAINTAIN LISTED |
EACH VENT | CLEARANCE |
|
CLEARANCE/.//_ S_/ \_\SUPPORTMINEVERY3'_'LATERALS
SUPPORTIFb
I 1
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.
MAINTAIN
CLEARANCE
VENT | TOTAL VERTICAL AND | |
| HORIZONTAL RUNS | |
| CANNOT EXCEED 20 | |
| FEETWITH A MAXIHiAH | |
| OF TI4REE90" ELBOWS | |
APPLIANCE | (20' HAX_t4UM IF 2" | |
VENT P_PrNG tS USED | ||
| ||
| ON 40,000 BTU/NR. | |
| MODELS) |
\
20
