Filter
Top Products
10
Table 1 – Indoor Air Filter Data
UNIT
SIZE
FIL TER QUANTITY FILTER SIZE
03---07
4
16x20x(2or4)in
(406.4 x 508 x [50.8 or 101.6]) mm
08---14
4
20x25x(2or4)in
(508 x 635 x[50.8 or 101.6]) mm
16
8
20x20x(2or4)in
(508 x 508 x[50.8 or 101.6]) mm
Alarm Status
(Units with ComfortLinkt Controls)
The Scrolling Marquee display incorporates an Alarm Status LED
that turns on to indicate an active alarm or alert. These alarms and
alerts are i n addition to those that are indicated by the Integrated
Gas Control (IGC). The ComfortLink control active alarm codes
and alarm history can be viewed with the Scrolling Marquee or
other Carrier Comfort Networkr (CCN) devices. Alarms may also
be configured to broadcast automatically on CCN. If the unit will
not operate and the Alarm Status LED is on, contact the local
dealer and request service.
Integrated Gas Controller (IGC)
The IGC board incorporates an LED that emits a flashing light to
indicate an alarm code. If the furnace section will not operate and
the LED is flashing a code (1 to 9 flashes in succession), contact
your dealer and request service.
NOTE: Make note of the flash code before powering off the unit.
The alarm codes clear after power cycle.
Combustion Air and Vent System
The combustion area and vent system should be visually inspected
before each heating season. The normal accumulation of dirt, soot,
rust, and scale can result in loss of efficiency and improper
performance if allowed to build up.
FIRE HAZARD
Failure to follow this warning could result in personal injury,
death, and/or property damage.
If your unit makes and especially loud noise when the main
burners are ignited, shut down the heating section and call
your dealer.
!
WARNING
See Fig. 1 and proceed as follows to inspect the combustion a rea
and power--venting system of your unit.
7. Turn off electrical power (install disconnect tag) and gas
supply to your unit (follow Shut--Off Steps 1--3).
8. Open burner compartment access panel.
9. Using a flashlight, carefully inspect the burner areas for dirt,
soot, or scale.
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in damage to unit.
If dirt, s oot, rust or s cale accumulations are found, call your
dealer and do not operate your heating section.
CAUTION
!
10. When you have completed your inspection, follow the
start--up procedures in this manual to restore your unit to
operation.
11. Observe unit heating operation, and watch the burner flame
with the access panel removed to see if it is bright blue. If
you observe a suspected malfunction, or that the burner
flames are not bright blue, call your dealer. Some yellow
flame may be present due to the panel being removed.
12. Close burner compartment access panel.
Heat Exchanger
To ensure dependable and efficient heating operation, the heat
exchanger should be checked by a qualified maintenance person
before each heating season, and cleaned when necessary. This
checkout should not be attempted by anyone not having the
required expertise and equipment to do the job properly. Checking
and/or cleaning the heat exchanger involves removing the gas
controls assembly and the flue collector box cover and, when
completed, reinstalling the gas controls assembly for proper
operation. The flue collector box cover must be reinstalled with
“red” R TV correctly so that a proper seal is maintained. Contact
your dealer for the required periodic maintenance.
Evaporator, Condenser and Combustion Fan
Motors
The indoor fan, outdoor fan, and combustion fan motors have
permanently sealed bearings, so no field lubrication is necessary.
Indoor Fan, Belt and Pulleys
Check quarterly the condition of the fan wheel(s), pulleys, fan belt
and the belt tension. If there is any loose part or belt wear, contact
your dealer and request service.
Indoor Fan Shaft Bearings (Sizes 03--14)
The indoor fan has permanently sealed bearings, so no field
lubrication is necessary.
Indoor Fan Shaft Bearings (Size 16)
Lubricate bearings at least every 6 months with suitable bearing
grease. Typical lubricants are given below:
MANUFACTURER LUBRICANT
Texaco Re gal AF B --- 2*
Mobil Mobilplex EP No. 1
Sunoco Prestige 42
Texaco Multifak 2
* Preferredlubricant because it containsrust and oxidation inhibitors.
Refrigerant Circuits
The refrigerant circuits are difficult to check for leaks without the
proper equipment; therefore, if inadequate cooling is suspected,
contact your dealer for service.
Evaporator and Condenser Coils
Cleaning of the coils should only be done by qualified service
personnel. This procedure should be performed prior to cooling
operation or more frequently should conditions require. Contact
your 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.
48PD, 48PG