Comfort-Aire WDG Air Handler Series - Manual (Page 22)

22
Installation, Operation & Maintenance WDG AIR HANDLER SERIES Heat Controller, LLC
WARNING!
WARNING! These instructions are intended as
an aid to qualifi ed licensed service personnel for
proper installation, adjustment and operation of
this unit. Read these instructions thoroughly before
attempting installation or operation. Failure to follow
these instructions may result in improper installation,
adjustment, service or maintenance possibly resulting in
property damage, personal injury or death.
For continuing high performance and to minimize possible
equipment failure, it is essential that annual maintenance be
performed on this equipment. Consult your local dealer as to the
availability of a maintenance contract.
Air Filter
Check the system fi lter every ninety days or as often as found to
be necessary and if obstructed, clean or replace at once.
IMPORTANT: Do not operate the system without a fi lter in place.
Indoor Coil - Drain Pipe - Drain Line
Inspect the indoor coil once each year for cleanliness and clean
as necessary. In some cases, it may be necessary to remove the
fi lter and check the return side of the coil with
a mirror and fl ashlight.
IMPORTANT: Do not use caustic household drain cleaners
or bleach in the condensate pan or near the indoor coil. Drain
cleaners will quickly damage the indoor coil.
MAINTENANCE
Unit & System Checkout
WARNING!
After installation has been completed, it is recommended that the
Air Handler be checked against the following checklist:
CHECKOUT PROCEDURE
❑
Power: Make sure power is “OFF” at power disconnect
switch.
❑ Field Wiring: Check all fi eld wiring for tight connections.
See that grounding of unit is in accord with code
❑ Unit Suspension: Make sure unit suspension (if used)
is secure and that there are no tools or loose debris in,
around or on top of the unit.
❑ Ducts: Check all duct outlets; they must be open and
unrestricted.
❑ Drain Lines: Check drain lines and be sure all joints are
tight.
❑ Drain Pan: Make sure secondary drain pan is installed.
❑ Power Supply: Check power supply for correct
requirements per unit nameplate.
❑ Filters: Check fi lters for proper size. Inform owner of
proper procedure for removal and reinstallation.
❑ Operation: Energize the system and carefully observe
its operation; make any necessary adjustment.
❑ Procedure: Instruct owner, engineer (if possible) on
proper operating procedure and leave Use and Care
Manual with owner.
WARNING! Electrical shock hazard - Lock unit disconnect
switch in open position before servicing unit. Failure
to follow this warning could result in property damage,
personal injury, or death.