Carrier 69NT40-511-199, 69NT40-521 manual Holding Zone

Table 4-2. Electrical Control Positions -- ABOVE --10_C (+14_F), or --5_C (+23_F) optionally

CONTROL CIRCUIT	COOLING	Holding Zone	* Dehumidification	HEATING	DEFROST
Single-Speed Compressor:
Compressor Contactor	Energized	De-energized	**	**	De-energized
(C)					1

Two-Speed Compressor in high speed mode:

Compressor Contactor	Energized	De-energized	**	**	De-energized
(CH)					1
Compressor Contactor	Energized	De-energized	**	**	De-energized
(CS)					1
Compressor Contactor	De-energized	De-energized	**	**	De-energized
(CL)					1

Two-Speed Compressor in low speed mode:

Compressor Contactor	De-energized	De-energized	**	**		De-energized
(CH)						1
Compressor Contactor	De-energized	De-energized	**	**		De-energized
(CS)						1
Compressor Contactor	Energized	De-energized	**	**		De-energized
(CL)						1
Condenser Fan	Energized	De-energized	Energized	De-energized		De-energized
Contactor (CF)
High Speed Evaporator			Refer to section		Refer to	De-energized
	Energized	Energized			section
Contactor (EF)			3.1.7.a.2			2
					3.1.7.a.2
Low Speed Evaporator			Refer to section		Refer to
	De-energized	De-energized			section	De-energized
Contactor (ES)			3.1.7.a.2
					3.1.7.a.2
Defrost Relay (TF)	De-energized	De-energized	De-energized	De-energized		Energized
Heater Relay (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

SECTION 4

*Unit with optional Humidity sensor

**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.

4-15 T-268-07