Filter
Top Products
6
Heat Exchanger
NOTE: To ensure dependable and efficient heating operation,
the heat exchanger should be checked by a qualified mainte-
nance person before each heating season, and cleaned when
necessary.
Checking and/or cleaning the heat exchanger involves
removing the gas controls assembly and the flue collector box
cover. When finished, the gas controls must be reinstalled for
proper operation. Also, the flue collector box cover must be
replaced correctly so that a proper seal is maintained. Contact
your dealer for the required periodic maintenance. At the
beginning of each cooling/heating season and as conditions
require.
Fans and Belts, and Fan Motor —
Periodically check
the condition of fan wheels and housings, belt tension and fan
motor shaft bearings. No lubrication of condenser or evapora-
tor fan bearings or motors is required or recommended.
Evaporator and Condenser Coils —
Cleaning of
the coils should be done by qualified service personnel. Con-
tact you dealer for the required annual maintenance.
Condensate Drain —
The drain pan and condensate
drain line should be checked and cleaned at the same time the
cooling coils are checked by your dealer.
Compressor —
All compressors are factory supplied with
a normal charge of the correct type refrigeration-grade oil in
them and should not require additional oil.
Condenser Fan
The fan must be kept free of all obstructions to ensure prop-
er cooling. Contact your dealer for any required service.
Electrical Controls and Wiring —
Ensure wires do
not contact refrigerant tubing or sharp edges. Electrical con-
trols are difficult to check without proper instrumentation. If in-
adequate cooling is suspected, contact your qualified local
dealer for service.
Combustion Area and Vent System —
The com-
bustion area and vent system should be visually inspected be-
fore each heating season. The normal accumulation of dirt,
soot, rust, and scale can result in loss of efficiency and improp-
er performance if allowed to build up.
See Fig. 1A, 1B, and 5 and proceed as follows to inspect the
combustion area and power-venting system of your unit.
1. Turn off gas supply to your unit.
2. Turn off electrical power to your unit; install lockout tag.
3. Remove compressor access panel.
4. Using a flashlight, carefully inspect the burner areas for
dirt, soot, or scale.
5. When you have completed your inspection, follow the
start-up procedures in this manual to restore your unit to
operation.
6. Observe unit heating operation.
Watch the burner flame to see if it is bright blue. If you
observe a suspected malfunction or that the burner flame
is not bright blue, call your dealer.
7. Replace compressor access panel.
Unit Panels —
After performing any maintenance or
service on the unit, be sure all panels are securely fastened in
place to prevent rain from entering unit cabinet and to prevent
disruption of the correct unit airflow pattern.
This checkout should not be attempted by anyone not hav-
ing the required expertise and equipment to do the job
properly.
Do not poke sticks, screwdrivers, or any other object into
revolving fan blades. Severe bodily injury could result.
If your unit makes any unusual or especially loud noises
during heating, shut down the heating section and call your
qualified Carrier service technician.
If dirt, soot, rust or scale accumulations are found, call your
dealer and do not operate your heating section.
Components in heat section may be hot after unit has been
started up. When observing flame, be careful not to get
close to or touch heating components. Serious injury could
result.