Condensate Drain — Install a trapped condensate drain line to unit connection as shown in Fig. Condensate Drains.
The unit drain connection is a PVC stub. See Fig.
Drain Pan Slope Adjustment. Some areas may require an adapter to
connect to either galvanized steel or copper pipe. For these applications, install a field--supplied threaded PVC
adapter.
NOTE: Dimensions in [ ] are in millimeters
Condensate Drains
NOTE: A trap must be installed in the condensate drain line to ensure that the static pressure of fans is balanced with
the water column in the drain line and that condensate can drain completely from pan. Without a trap, air can be
drawn up drain line until water level in condensate pan becomes equal to static pressure created by fans, preventing
complete drainage. Conditions will worsen as filters become dirty.
Install clean-out plugs in trap. Pitch drain line downward to an open floor drain or sump. Provide service clearance
around drain line to permit removal of unit panels. Observe all local sanitary codes.
Drain Pan Slope Adjustment
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