Carrier 50KQL-1PD manual REMOTE-MOUNTED Thermostat with Complete C Controller

REMOTE-MOUNTED THERMOSTAT WITH COMPLETE C CONTROLLER

GROUND

POWER SUPPLY

REFER TO DATA PLATE

USE COPPER CONDUCTORS ONLY.

SEE NOTE 2

REFER TO DISCONNECT

BOX FOR OPTIONAL

POWER SUPPLY CONNECTION

	NEUTRAL ON 265V
	SYSTEMS
L2	RED
	2
L1	PB
	1

H			BLU	COMPRESSOR
				S
CAP
		8		R
C RED 6			RED	C
F	2	CR
		4	BLK
BLK

OPTIONAL		L2 (ribbed)			BRN 2			B (HIGH)
		GROUND
CORD						BM
CONNECTION		L1 (plain)			YEL
	SEE		COM NO		BLK	1	A (LOW)
CB*								RED
	NOTE 3	BLK	BLK			2
	TRANS			BR			1	BLK
						FSS
24V		ORG
		230V

	SEE
	NOTE 7
BLK TRANS
RED	CB
(220V)	24V BLU
ORG (240V)
TYPICAL HEAT PUMP T-STAT BRN	YEL

	YEL	ORG				TRANSFORMER PRIMARY
YEL	DM		BRN		SEE	LEAD COLORS
	1	0		1 0	NOTE 7	VOLTAGE	LEAD COLOR
	BR			CR		115	WHT
YEL GRY		BRN	BRN BRN		YEL	208	RED
						230	ORG
	BR	BRG	CCG	CC		265	BRN
C	TEST PINS

	SEE NOTE 5		CLASS 1 WIRING
	CLASS 1 OR 2
	WIRING ACCEPTABLE		REQUIRED INSIDE
	OUTSIDE		CONTROL BOX
	CONTROL BOX		COMPRESSOR
	Y
	O		COOLING
	G		FAN
	R		24 VAC
	C		COMMON
	L		ALARM
	BRN	WV	YEL
	GROUND
CAP	PB
		TRANSFORMER

R

Y

Y

W

O

G

R

C

AL1

AL2

A

P1

			COMPR.
	SEE		RELAY
	NOTE 4
	JW3
	FP1
	JW2
	FP2
	DIP SWITCH
		1	PM: DISABLED/
		2	ENABLED
			STAGE 2: 2/1
		3	NOT USED
		4	NOT USED
		5	FP1/FP2
JW1 OFF ON FAULTS: 3/1
			STATUS
ALARM	SEE		G LED
RELAY	NOTE 6	COMPLETE C

MICRO-

PROCESSOR

CONTROL

LOGIC

CO

HP 1	RED	HP
	RED
2
3	BLU	LOC
LOC	BRN
4
5	GRY	FP1
FP16
	GRY	SEE
FP27	VIO	NOTE 4
		FP2
8	VIO
RV 9	BRN	RVS
10	ORG
	NOT USED
CO12	YEL	CO
P2

24V DC

EH1

EH2

P3

	CR
	BR
COMPLETE
	C
	CONTROL
	LEGEND
AL	— Alarm Relay Contacts
BM	— Blower Motor
BR	— Blower Relay
CAP	— Capacitor
CB	— Circuit Breaker
CO	— Sensor, Condensate Overflow
CR	— Compressor Relay
DM	— Damper Motor
FP1	— Sensor, Water Coil Freeze Protection
FP2	— Sensor, Air Coil Freeze Protection
FSS	— Fan Speed Switch
HP	— High-Pressure Switch
JW1	— Jumper Wire for Alarm
LOC	— Loss of Charge Pressure Switch
PB	— Power Terminal Block
PBS	— Push Button Switch
PM	— Performance Monitor
RVS	— Reversing Valve Solenoid
TRANS	— Transformer	>>
WV	— Water Valve
----------Field Line Voltage Wiring

Field Low-Voltage Wiring

Printed Circuit Trace Relay/Contactor Coil

Solenoid Coil

Thermistor

Circuit Breaker

Relay Contacts-N.O.

Switch-High Pressure

Switch-Low Pressure

Ground

Wire Nut

Mate-N-Lock

BLOWER MOTOR WIRING

UNIT SIZE	POLE A	POLE B
07	5	3
09	5	4
12	4	3
15	4	3
19	4	3

*Optional wiring.

NOTES:

1.Compressor and blower motor thermally protected internally.

2.All wiring to the unit must comply with local codes.

3.Transformer is wired to 115-V (WHT) lead for 115/ 1/60 units, 265-V (BRN) lead for 265/1/60 units or 208-V (RED) lead for 208/1/60 units.

For 203/1/60 switch RED and ORG leads at L1 and insulate RED lead.

Transformer is energy limiting or may have circuit breaker.

4.FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper.

5.Typical heat pump thermostat wiring shown. Refer to thermostat Installation Instructions for wiring to the unit.

6.24-V alarm signal shown. For dry alarm contact, cut JW1 jumper and dry contact will be available between AL1 and AL2.

7.Transformer secondary ground via Complete C board standoffs and screws to control box. (Ground available from top two standoffs as shown.)

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