Carrier 50KQL-1PD manual Automatic Changeover With Complete C Controller

AUTOMATIC CHANGEOVER 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

COMPRESSOR

HBLU

S

	CAP	8	R
C	RED 6		RED	C
F	BLK 2	CR
		4	BLK

OPTIONAL		L2 (ribbed)		2	B (HIGH)
		GROUND	BRN
CORD					BM
CONNECTION		L1 (plain)	YEL
	SEE		BLK	1	A (LOW)
CB*	NOTE 3
		BLK	BLK	5	5A RED
	TRANS

PUSH BUTTON SWITCH ATTRIBUTES

24V

ORG

BLK

6

6A RED

X = CLOSED

O = OPEN

230V

7

7A

BLK

TERMINALS

1

2

3

4

5

6

7

8

PBS

1A

1B

2A

3A

4A

5A

6A

7A

8A

STOP

X

O

O

O

O

O

O

O

O

TRANSFORMER PRIMARY

FAN ONLY

X

O

O

O

O

X

O

O

O

LEAD COLORS

LOW FAN

X

O

O

X

X

O

X

O

O

SEE

1

0

SEE

VOLTAGE

LEAD COLOR

HIGH FAN

X

O

O

X

X

O

O

X

X

NOTE 7

NOTE 7

115

WHT

208

RED

BRN YEL

230

ORG

265

BRN

BLU

BR

BRG CCG

CC

BRN

C

BRN

TEST PINS

BR2

YEL

COMPR.

R

HP 1

RED

HP

BR1

BRN

SEE

RELAY

Y

NOTE 4

2

RED

3

BLU

JW3

LOC

UMT

YEL

LOC

BRN

Y

FP1

4

4 ORG 1

JW2

5

GRY

5

FP2

FP1

YEL

2

ORG

W

DIP SWITCH

FP16

GRY

SEE

RED

6

3

O

1 PM: DISABLED/

FP27

VIO

NOTE 4

RED

ENABLED

FP2

RED 3A PBS3

RED

G

2 STAGE 2: 2/1

8

VIO

R

3 NOT USED

RV 9

BRN

5

5A

4 NOT USED

RVS

RED RED

BRN

C

5 FP1/FP2

10

ORG

AL1

JW1 OFF ON FAULTS: 3/1

NOT USED

6

6A RED

AL2

G

STATUS

CO12

YEL

CO

RED

YEL

A

ALARM

SEE

LED

P2

YEL

7

7A

RELAY

NOTE 6 COMPLETE C

24V

P1

MICRO-

DC

PROCESSOR

EH1

GROUND

CONTROL

CAP

PB

DM

LOGIC

EH2

YEL YEL

ORG BRN

CO

P3

BRN

WV

BLOWER MOTOR WIRING

TRANSFORMER

UNIT SIZE POLE A

POLE B

CR

07

5

3

BR1

09

5

4

PBS

12

4

3

15

4

3

COMPLETE

C

19

4

3

CONTROL

BR2

UMT

		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
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
UMT	—	Unit Mounted Thermostat
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-Temperature

Switch-High Pressure

Switch-Low Pressure

Ground

Wire Nut

Mate-N-Lock

*Optional wiring.

NOTES:

1.Compressor and blower motor thermally pro- tected 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 cir- cuit breaker.

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

5.Typical unit-mounted thermostat wiring shown.

6.24-V alarm signal shown. For dry alarm con- tact, 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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