100324051_2000579115 _Rev. 01
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Connections To The Blower And Air Duct
1. The vent piping connects into the rubber coupling
located on the top of the blower assembly. This
coupling includes gear clamps to connect the venting
to the blower. See Figure 45.
Important:
These connections must be properly seated
and tightened to prevent the leakage of flue gases into the
area. See Figure 44 through Figure 46.
Breathing carbon monoxide can cause brain damage or death.
Always read and understand instruction manual.
Vent pipe connections to the blower must be
properly seated and tightened to prevent the
leakage of flue gases into the area.
Breathing Hazard - Carbon Monoxide Gas
WARNING
Note:
Polypropylene vent systems require separate
adaptor (field supplied).
2. Before installing clean and lightly sand the end of the
ABS/PVC/CPVC plastic vent piping that will connect
into the rubber coupling. For polypropylene vent
systems follow manufacturer’s instructions.
3. Loosen the upper clamp on the rubber coupling and
insert the sanded end of the vent piping a full 1-1/4”.
Do not use glue or sealant in the rubber coupling.
Check that there is no stress on the connection or the
vent piping that may be caused by twisting or bending.
4. Tighten the upper clamp so that the vent piping is
firmly secured in the coupling and is gas tight. Do not
over tighten or cause distortion of any of the parts.
Ensure the bottom of the rubber coupling is firmly
seated on the blower outlet and that the lower gear
clamp is also secure. Check to ensure there is no
distortion or movement of the clamped assembly once
it is completed.
•
Do not overtighten the top and bottom gear clamps of the
rubber coupling.
•
Do not apply solvent cement or silicone to the rubber
coupling connection.
Property Damage Hazard
CAUTION
Figure 44 shows the configuration for heaters direct
connected to 2” venting.
BLOWER
2” VENT
PIPE
2” RUBBER
COUPLING
(SEE KIT)
2” INLET
PIPE
2”-3”
ADAPTER
(SEE KIT)
AIR DUCT
ADAPTER
3” PIPE
(SUPPLIED)
RESTRICTIVE
SCREEN (IF
APPLICABLE)
RESTRICTIVE
SCREEN (IF
APPLICABLE)
FITTING
“A”
SCREW
FITTING “A” MAY BE A COUPLING AS SHOWN, OR AN ELBOW AS
SUITABLE FOR THE INSTALLATION.
2” VENT PIPE,
12” LENGTH
RECOMMENDED
Figure 44.
Figure 45 shows heaters having 3” direct connection to
the blower.
3” RUBBER
COUPLING
(SUPPLIED)
BLOWER
3” VENT
PIPE
AIR DUCT
ADAPTER
3” INLET
PIPE
FITTING “A”
RESTRICTIVE
SCREEN (IF
APPLICABLE)
RESTRICTIVE
SCREEN (IF
APPLICABLE)
SCREW
3” VENT PIPE,
12” LENGTH
RECOMMENDED
FITTING “A” MAY BE A COUPLING AS SHOWN, OR AN ELBOW AS
SUITABLE FOR THE INSTALLATION.
Figure 45.
Figure 46 shows the configuration for heaters connected
to 4” venting.
4” VENT
PIPE
3” RUBBER
COUPLING
3” VENT PIPE, 3”
MAX LENGTH
3”-4”
ADAPTER
BLOWER
4” INLET PIPE
AIR DUCT
ADAPTER
3”
PIPE
3”-4”
ADAPTER
Figure 46.
