Installation Manual

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16
Installation instructions
Fig. 17 Vertical venting installation (single pipe pene-
tration)
Warning: Single pipe penetration should be used
in non-freezing climates only!
Fig. 18 Vertical venting installation (twin pipe penetra-
tion)
Fig. 19 Vertical venting installation - Masonry Chim-
ney (combustion air piping not shown)
3.3.4 Vent connections
B Attach the flue gas exhaust accessory (8 705 504
151) to the top of the unit (position 1) using the 4
screws and gasket provided. Fully insert stainless
steel vent pipe 1.5” minimum into the accessory and
tighten the clamp (position 2).
FIRESTOP SUPPORT
ELBOW
APPLIANCE
HOSE
CLAMP
RAINCAP
STORMCOLLAR
FLASHING
FIRESTOP SUPPORT
4"MIN.
AIRSPACE
6720608158-91.2Av
CONDENSATE
DRAIN
2'MIN.
10'MIN.
3'MIN.
i
If using the 4” vent, a 3” to 4” increaser is
required immediately off the top of the
heater.
i
NOTE: Vent pipe must be completely ver-
tical when inserting or gasket inside ex-
haust accessory can become displaced.
Exhaust accessory can be removed with
vent pipe attached to check gasket posi-
tion.
CHIMNEY
MORTAR
HANGERSTRAP
HORIZONTAL RUN
1/4"RISE/FT
ELBOW
APPLIANCE
MAY BEINSULATED
IFNECESSARY
6720608158-14.2AL
HOSE
CLAMP
ELBOW
RAINCAP
STORMCOLLAR
SILICONESEAL
FLASHING
CONDENSATE
DRAIN
2'MIN.
10'MIN.
3'MIN.