User`s manual

(030) 60HZ CHARGING CHART
SUCTION LINE TEMPERATURE
26--Coolin{
48GX0a0
(036) 60HZ CHARGING CHART
SUCTION UNE TEMPERATURE IF
-1 4 10 16 21 27 32
SUCTION LINE TEMPERATURE (C)
Fig. 27--Coolinc 48GX036 U_9c_°51
SUCTION LINE TEMPERATURE
-1 4 10 16 21 27 32
SUCTION LINE TEMPERATURE (:C)
C00052
Fig. 28--Cooling ChargBng Chart, 48GX042 Units
and housing with vacuum cleaner, using soft brllsh attach°
ment. Remove grease and oil with mild solvent
d, Reassemble wheel into housing.
e Reassemble motor into housing Be sure setscrews are
tightened on motor shak flats and not on round part of
shaft.
£ Reinstall unit access panel.
3. Restore electrical power to uniL Start unit and check for
proper blower rotation and motor speeds during heating and
cooling cycles.
FLI_E GAS PASSAGEWAYS
To inspect the flue collector box and upper areas of the heat
exchanger:
1. Remove the combustion blower wheel and motor assembly
according to directions in the d'oml_.stiut_-.ti_' Blo_ e_' section
27
SUCTION LINE TEMPERATURE
-1 4 10 16 21 27 32
SUCTION LINE TEMPERATURE (C)
Fig. 29--Cooling Charging Chart, 48GX048 U_i_ °53
2. Remove the 3 screws holding the blower housing to the flue
collector box cover (See Fig. 31 34).
3 Remove the 12 screws holding the flue collector box cover
(See Fig 33 34) to the heat exchanger assembly. Inspect the
heat exchangers.
4. (lean all surfitces, as required, using a wire brush.
COMBUSTION=AIR BLOWER
Clean periodically to assu*e proper airflow and heating efficiency.
Inspect blower wheel eve*y fall and periodically during the heating
season. For the first heating season, inspect blower wheel bi-
monthly to determine proper cleaning frequency
To inspect blower wheel, remove drak hood assembly Shine a
flashlight into opening to inspect wheel If cleaning is required,
remove motor and wheel as _bllows:
1 Remove unit access panel (See Fig. 32).