Carrier Official Manual for 50PSH Heat Pump: Installation and Operation Guide

			LEGEND
AL	— Alarm Relay Contacts	TRANS		— Transformer			Solenoid Coil
ASTAT	— Aquastat	UPS		— Unit Performance Sentinel			Relay Contacts - N.C.
BR	— Blower Relay			Factory Low Voltage Wiring
CB	— Circuit Breaker			Factory Line Voltage Wiring			Relay Contacts - N.O.
CC	— Compressor Contactor			Field Low Voltage Wiring
CO	— Condensate Overflow Sensor			Field Line Voltage Wiring			Capacitor
COMPR — Compressor
				Printed Circuit Trace
DTS	— Discharge Temp Switch						Temperature Switch
				Optional Wiring
FP1	— Water Coil Freeze Protection Sensor
FP2	— Air Coil Freeze Protection Sensor			Relay/Contactor Coil			Low Pressure Switch
HP	— High-Pressure Switch
HWG	— Hot Water Generator						High Pressure Switch
JW	— Jumper Wire			Thermistor
LOC	— Loss of Charge Pressure Switch						Wire Nut
MV	— Motorized Valve			Condensate Pan			Splice Cap
NEC	— National Electrical Code
PSC	— Permanent Split Capacitor			Circuit Breaker		G	LED
P1	— Field Wiring Terminal Block
RVS	— Reversing Valve Solenoid
*Optional.
NOTES:				COMPLETE C CONTROLLER FAULT CODES
1. Compressor and blower motor thermally protected internally.
2. All wiring to the unit must comply with NEC and local codes.				DESCRIPTION OF OPERATION	LED		ALARM RELAY
3. 208/230 v transformer will be connected for 208 v operation. For			Normal Mode		ON		Open
230 v operation, disconnect RED lead at L1 and attach ORANGE
							Cycle (Closed 5 Sec.
lead to L1. Insulate open end of RED lead. Transformer is energy			Normal Mode with UPS Warning		ON
							Open 25 Sec.)
limiting or may have circuit breaker.
4. FP1 thermistor provides freeze protection for water. When using			Complete C is Non-Functional		OFF		Open
antifreeze solutions, cut JW3 jumper.			Fault Retry		Slow Flash		Open
5. Check installation wiring information for specific thermostat hookup.
			Lockout		Fast Flash		Closed
Refer to thermostat installation instructions for wiring to the unit.
							Open
Thermostat wiring must be “Class 1” and voltage rating equal to or			Over/Under Voltage Shutdown		Slow Flash
greater than unit supply voltage.							(Closed After 15 Min.)
6. 24-v alarm signal shown. For dry alarm contact, cut JW1 jumper			Test Mode-No Fault in Memory		Flashing Code 1		Cycling Code 1
and dry contact will be available between AL1 and AL2.			Test Mode-HP Fault in Memory		Flashing Code 2		Cycling Code 2
7. Transformer secondary ground via Complete C board standoffs and
			Test Mode-LP Fault in Memory		Flashing Code 3		Cycling Code 3
screws to control box. (Ground available from top two standoffs as
shown.)			Test Mode-FP1 Fault in Memory		Flashing Code 4		Cycling Code 4
8. Aquastat is supplied with unit and must be wired in series with the			Test Mode-FP2 Fault in Memory		Flashing Code 5		Cycling Code 5
hot leg to the pump. Aquastat is rated for voltage up to 277 v.
			Test Mode-CO Fault in Memory		Flashing Code 6		Cycling Code 6
9. Fan motors factory wired for medium speed. For high and low speed
			Test Mode-Over/Under Shutdown
remove BLU wire from fan motor speed tap ‘M’ and connect to ‘H’					Flashing Code 7		Cycling Code 7
for high or ‘L’ for low.			in Memory
			Test Mode-UPS in Memory		Flashing Code 8		Cycling Code 8
			Swapped FP1/FP2 Lockout		Flashing Code 9		Cycling Code 9

Fig. 15 — Units with Complete C Controller, Single-Phase

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