Carrier 69NT40-511-199 User Manual
Page 89
4-14
T-268-07
Table 4-1. Electrical Control Positions -- BELOW --10_C (+14_F), or --5_C (+23_F) optionally
CONTROL CIRCUIT
COOLING
Holding Zone
**Dehumidification
HEATING
DEFROST
Single-Speed Compressor:
Compressor Contactor
(C)
Energized
De-energized
**
**
De-energized
1
Two-Speed Compressor:
Compressor Contactor
(CH)
Energized
De-energized
**
**
De-energized
1
Compressor Contactor
(CS)
Energized
De-energized
**
**
De-energized
1
Compressor Contactor
(CL)
De-energized
De-energized
**
**
De-energized
1
Condenser Fan
Contactor (CF)
Energized
De-energized
**
**
De-energized
High Speed Evaporator
Contactor (EF)
De-energized
De-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)
Energized
Energized
Refer to section
3.1.7.a.2
Refer to
section
3.1.7.a.2
De-energized
Defrost Relay (TF)
De-energized
De-energized
**
**
Energized
Heater Relay (HR)
De-energized
De-energized
**
**
Energized
INDICATING LIGHTS
Cool
ON
OFF
**
**
OFF
Defrost
OFF
OFF
**
**
ON
In-Range
On -- If In-Range (Refer to paragraph 3.1.4, Code 30)
Heat
OFF
OFF
**
**
ON
POWER CIRCUIT
Compressor
Energized
De-energized
**
**
De-energized
Condenser Fan Motor
Energized
De-energized
**
**
De-energized
Heaters
De-energized
De-energized
**
**
Energized
Evaporator Fan Motors
Energized
Energized
**
**
De-energized
** Dehumidification and heating modes do not operate at set points below --10_C (14_F), or --5_C (23_F) optionally
1
-- May be energized in defrost if snap freeze portion of defrost is run.
2
-- May be energized in defrost if probe check portion of defrost is run.