Carrier 50PCH specifications Aquazone Deluxe D Control LED Indica, Led, LED Fault Description Code

stage 2 followed by heating stage 2 then reduces capacity to heating stage 1. Operates for 1 minute per step. DEHUMIDIFICATION TEST — Tests dehumidification mode. Operates for 2 minutes.

AUXILIARY HEATING TEST — Tests auxiliary heat. Sequences fan on and enables heating coil for 1 minute.

H2O ECONOMIZER TEST — Tests entering/returning water loop economizer operation. Sequences fan and opens economizer water valve for one minute.

OPEN VENT DAMPER 100% TEST — Tests outside air (OA) damper operation.

PREPOSITION OA DAMPER — Prepositions OA damper actuator to set proper preload.

NOTE: The auxiliary heating test, H2O economizer test, open vent damper 100% test, and preposition OA damper features will not be visible on the screen unless configured.

Once tests are complete, set unit test back to disable. Unit will automatically reset to disable after 1 hour.

Retry Mode — In Retry mode, the status LED will start to flash slowly to signal that the control is trying to recover from an input fault. The control will stage off the outputs and try to again satisfy the thermostat used to terminal Y. Once the ther- mostat input calls are satisfied, the control will continue normal operation.

NOTE: If 3 consecutive faults occur without satisfying the thermostat input call to terminal Y, the control will go into lockout mode. The last fault causing the lockout is stored in memory and can be viewed by entering Test mode.

TEST LED — Test LED will be activated any time the De- luxe D control is in test mode. The Test LED light is yellow. FAULT LED — Fault LED light is red. The fault LED will al- ways flash a code representing the last fault in memory. If there is no fault in memory, the fault LED will flash code 1 on the and appear as 1 fast flash alternating with a 10-second pause. See Table 31.

Table 29 — Complete C Control Current LED

Status and Alarm Relay Operations

LED STATUS		DESCRIPTION OF OPERATION			ALARM RELAY
	On	Normal Mode			Open
		Normal Mode with PM Warning			Cycle (closed 5
					sec., Open 25 sec.)
	Off	Complete C Control is			Open
		non-functional
Slow Flash			Fault Retry		Open
	Fast Flash		Lockout		Closed
Slow Flash		Over/Under Voltage Shutdown			Open (Closed after
					15 minutes)
Flashing Code 1		Test Mode — No fault in memory			Cycling Code 1
Flashing Code 2		Test Mode — HP Fault in memory			Cycling Code 2
Flashing Code 3		Test Mode — LP Fault in memory			Cycling Code 3
Flashing Code 4		Test Mode — FP1 Fault in memory			Cycling Code 4
Flashing Code 5		Test Mode — FP2 Fault in memory			Cycling Code 5
Flashing Code 6		Test Mode — CO Fault in memory			Cycling Code 6
Flashing Code 7		Test Mode — Over/Under shutdown			Cycling Code 7
			in memory
Flashing Code 8		Test Mode — PM in memory			Cycling Code 8
Flashing Code 9		Test Mode — FP1/FP2 Swapped			Cycling Code 9
		Fault in memory
		LEGEND
CO	— Condensate Overflow		LED	— Light-Emitting Diode
FP	— Freeze Protection		LP	— Low Pressure
HP	— High Pressure		PM	— Performance Monitor

Aquazone™ Deluxe D Control LED Indica-

tors — There are 3 LED indicators on the Deluxe D control: STATUS LED — Status LED indicates the current status or mode of the Deluxe D control. The Status LED light is green.

NOTES:

1.Slow flash is 1 flash every 2 seconds.

2.Fast flash is 2 flashes every 1 second.

3.EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes followed by a 10-second pause. This sequence will repeat continually until the fault is cleared.

Table 30 — Complete C Control LED Code and

Fault Descriptions

	LED		FAULT			DESCRIPTION
	CODE
	1		No fault in memory			There has been no fault since the last power-down to power-up sequence
	2		High-Pressure Switch			HP open instantly
	3		Low-Pressure Switch			LP open for 30 continuous seconds before or during a call (bypassed for first 60 seconds)
	4		Freeze Protection Coax — FP1			FP1 below Temp limit for 30 continuous seconds (bypassed for first 60 seconds of operation)
	5		Freeze Protection Air Coil — FP2			FP2 below Temp limit for 30 continuous seconds (bypassed for first 60 seconds of operation)
	6		Condensate overflow			Sense overflow (grounded) for 30 continuous seconds
7 (Autoreset)			Over/Under Voltage Shutdown			"R" power supply is <19VAC or >30VAC
	8		PM Warning			Performance Monitor Warning has occurred.
	9	FP1 and FP2 Thermistors are swapped				FP1 temperature is higher than FP2 in heating/test mode, or FP2 temperature is higher than
						FP1 in cooling/test mode.
			LEGEND
FP	— Freeze Protection		LP	—	Low Pressure
HP	— High Pressure		PM	—	Performance Monitor
LED	— Light-Emitting Diode

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