44
Installation Manual
Installing a Condensate Drain
Refer to the following examples to install a condensate drain hose
(field supplied) to the common vent system. The condensate drain
hose prevents condensate or rain from entering the exhaust system
and gatering above the backflow damper.
Exhaust gas
Intake air
Drain loop
Drain hose
Drain
End
Cap
Exhaust gas
Intake air
Drain loop
Drain hose
Drain
End
Cap
To install a condensate drain to the cascade system:
1
Form a loop with a drain hose and fix it with a tie.
Notice
• While shaping the hose, do not bend the hose excessively. The hose
will be deformed and the flow will be restricted if the hose is bent in
sharp angles.
• Do not fix the hose too tight when tying the hose to form the loop.
The hose will be deformed and the flow will be restricted if the tie is
too tight.
2
Prime the loop using tap water.
3
Install the hose to the cascade system and direct the end of
the hose to a drain.
Warning
After installing the condensate drain hose, check the loop
again to ensure that the prime water is not spilled. The loop
(siphon) must be primed with water before running the system
to prevent toxic exhaust gas from leaking into the installation
site.
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