Service manual

4-11
T-294-01
Table 4-2. Electrical Control Positions -- ABOVE --10
_
__
_ C(+14 _
__
_ F), or --5 _
__
_ C(+23 _
__
_ F) optionally
CONTROL CIRCUIT COOLING Holding Zone
* Dehumidifica-
tion
HEATING DEFROST
Compressor Contactor
(CH)
Energized De-energized ** ** De-energized
1
Condenser Fan
Contactor (CF)
Energized De-energized Energized De-energized De-energized
High Speed Evaporator
Contactor (EF)
Energized Energized
Refer to section
3.1.7.a.2
Refer to section
3.1.7.a.2
De-energized
2
Low Speed Evaporator
Contactor (ES)
De-energized De-energized
Refer to section
3.1.7.a.2
Refer to section
3.1.7.a.2
De-energized
Heater Contactor (HR)
De-energized De-energized Energized Energized Energized
INDICATING LIGHTS
Cool
ON OFF ON OFF OFF
Defrost
OFF OFF OFF OFF ON
In-Range On -- If In-Range (Refer to paragraph 3.1.4, Code 30)
Heat
OFF OFF ON ON ON
POWER CIRCUIT
Compressor
Energized De-energized Energized De-energized De-energized
Condenser Fan Motor
Energized De-energized Energized De-energized De-energized
Heaters
De-energized De-energized Energized Energized Energized
Evaporator Fan Motors
Energized Energized Energized Energized De-energized
* Unit with optional Humidity sensor
** Dehumi dification a nd heating modes do not operate at set points below --10
_ C (14 _ F), or --5 _ C (23 _ F) optionally
1
-- May be e nergized in defrost if snap freeze portion of defrost is run.
2
-- May be energized i n defrost if probe check portion of defrost is run.