Maintenance
Refer to
for more gas-fired furnace and
for electric heating coil for service and mainte-
pump water line piping requirements and field mounted
options and accessories. See
for trouble-
shooting information.
Please refer to
for a recommended list of rou-
tine maintenance items and time intervals. A more detailed
description of major maintenance items follows.
Air Filters
The standard medium efficiency filters and optional high
efficiency filters are disposable and should be replaced
every three months. More frequent replacement may be
required under extremely dirty operating conditions.
To replace the filters, open the filter access door, grasp
the filters and pull straight out. The filters will slide com-
pletely out of the unit. Slide the new filters into the frame
and close the filter access door.
WARNING
Disconnect the main power switch to the unit before per-
forming service and maintenance procedures.
Interior of Unit
Remove the filters from the unit. Wipe the interior galva-
nized liner, surfaces and enthalpy wheel cassette panels
with a soft cloth and mild cleaning solution.
VCES-VHC-IOM-1F – VHC-36, -42 & -50
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