National Comfort Products CPG41228-U Installation Manual

The indoor blower motor and the outdoor fan motor have
permanently lubricated bearings and do not require routine
service. The refrigeration system is sealed and factory charged
with R-410A so that routine maintenance is not required.
Cleaning of the outdoor coil, indoor coil, drain pan, and inside
the bottom of the chassis are recommended at least once a
year, and more often if the equipment is operated in a dusty
or hostile environment. The electrical controls do not require
routine service.
Power to the unit should always be turned off before performing
service or removing the cooling chassis from the unit. One
power connector and one control circuit connector are provided
for easy disconnecting and re-connecting of the wires between
the cooling chassis and cabinet. The controls enclosure cover
must be removed to allow access to the screws holding the
indoor blower cover plate to the cooling chassis and cabinet.
After reinstalling the cooling chassis, the indoor blower cover
plate and controls enclosure cover must be reinstalled.
!
WARNING
IF YOU TURN OFF POWER SUPPLY, TURN OFF
THE GAS. SEE HAzARD LEVELS, PAGE 3. THE
MATERIAL CONTAINED IN THE MAINTENANCE
AND SERVICE SECTION OF THIS MANUAL
IS DESIGNED TO AID A qUALIFIED SERVICE
PERSON IN MAINTAINING AND SERVICING
THIS EqUIPMENT. THIS UNIT WILL OPERATE
WITH MINIMUM
ENSURE LONG LIFE AND SATISFACTORY
PERFORMANCE,
OPERATED UNDER NORMAL CONDITIONS
SHOULD bE INSPECTED AND CLEANED AT
THE START OF EACH HEATING SEASON.
IF THE HEATER IS OPERATING IN AN AREA
WHERE AN UNUSUAL AMOUNT OF DUST,
SOOT OR OTHER IMPURITIES ARE PRESENT
IN THE AIR, MORE FREqUENT MAINTENANCE
IS RECOMMENDED. WHEN ANY SERVICE IS
COMPLETE, bE CAREFUL TO REASSEMbLE
CORRECTLY TO ENSURE THAT NO UNSAFE
CONDITIONS ARE CREATED. WHEN RE-
LIGHTING, ALWAYS FOLLOW THE LIGHTING
INSTRUCTIONS ON THE HEATER.
Maintenance Schedule
At least every six weeks check the filter. Clean or replace as
necessary. A clean filter in addition to providing a comfortable
Installation Guide for Comfort Pack (CPG) Units
MAINTENANCE.
A HEATER THAT
environment ensures fuel-efficient operation and long heat
exchanger life. Do the following procedures at least annually.
• Clean all dirt, lint, and grease from the combustion air openings
and venter motor.
• Inspect the heat exchanger. Clean if needed.
• Check the burner for scale, dust, or lint accumulation. Clean if
needed.
• Check the vent system for soundness. Replace any parts that
do not appear sound.
• Check the wiring for any damaged wire. Replace damaged
wiring.
NOTE: USE ONLY FACTORY-AUTHORIzED
REPLACEMENT PARTS.
burner/Control Compartment
Heat Section burner/Control Compartment
Showing Locations of Burner Assembly and Controls
NOTE: Unit side panel is removed for clarity; side panel is not
removable. Access to the burner/control compartment is through
the small rear access panel as illustrated below.
TO
IS
Pressure Switch
DSI Integrated
Control Module
Figure 5
Gas Valve
Venter Motor
Burner Assembly
Burner
25