Carrier 50KQL-1PD User Manual
25
Typical wiring schematics
MANUAL CHANGEOVER WITH COMPLETE C CONTROLLER
LEGEND
SEE
NOTE 7
NOTE 7
BRN
YEL
BRN
BRN
BRN
BLU
SEE
NOTE 7
NOTE 7
CR
YEL
BRN
BR
BRG
CCG
CC
YEL
YEL
RED
6A
RED
5A
RED
5
RED
GRY
RED
RED
PBS
RED
RED
RED
ORG
BRN
BR2
BR1
YEL
2A
2
3
3A YEL
UMT
2
3
1
6
7A
BRN
7
YEL
RED
YEL YEL
ORG
BRN
DM
WV
1
1A
1B
R
Y
COMPLETE
C
CONTROL
UMT
BR1
BR2
PBS
CR
CAP
PB
GROUND
TRANSFORMER
Y
W
O
G
R
C
AL1
AL2
A
P1
ALARM
RELAY
C
SEE
NOTE 6
NOTE 6
JW1
YEL
JW3
FP1
JW2
FP2
SEE
NOTE 4
NOTE 4
TEST PINS
COMPR.
RELAY
RELAY
DIP SWITCH
OFF ON
STATUS
LED
LED
G
COMPLETE C
MICRO-
PROCESSOR
CONTROL
LOGIC
HP
LOC
FP1
FP2
RVS
CO
SEE
NOTE 4
NOTE 4
HP
LOC
FP1
FP2
RV
CO12
P2
24V
DC
DC
EH1
EH2
EH2
P3
CO
1
2
3
2
3
4
5
6
5
6
7
8
9
10
PM: DISABLED/
ENABLED
STAGE 2: 2/1
NOT USED
NOT USED
ENABLED
STAGE 2: 2/1
NOT USED
NOT USED
FP1/FP2
FAULTS: 3/1
FAULTS: 3/1
1
2
3
4
3
4
5
1
0
RED
RED
BLU
BRN
GRY
GRY
VIO
VIO
BRN
ORG
NOT USED
BLK
ORG
230V
230V
24V
TRANS
CB*
POWER SUPPLY
REFER TO DATA PLATE
USE COPPER
CONDUCTORS ONLY.
SEE NOTE 2
REFER TO DISCONNECT
BOX FOR OPTIONAL
POWER SUPPLY CONNECTION
GROUND
L2
L1
OPTIONAL
CORD
CONNECTION
CORD
CONNECTION
RED
NEUTRAL ON 265V
SYSTEMS
SYSTEMS
L2 (ribbed)
GROUND
L1 (plain)
PB
1
1
2
H
C
F
CAP
RED
RED
6
8
2
4
BLK
BLK
R
S
C
CR
BLU
COMPRESSOR
BRN
YEL
BLK
BLK
BLK
2
1
5
6
7
BM
B (HIGH)
A (LOW)
RED
RED
BLK
PBS
7A
6A
5A
115
208
230
265
208
230
265
WHT
RED
ORG
BRN
RED
ORG
BRN
LEAD COLOR
VOLTAGE
TRANSFORMER PRIMARY
LEAD COLORS
SEE
NOTE 3
NOTE 3
PUSH BUTTON SWITCH ATTRIBUTES
X = CLOSED
O = OPEN
TERMINALS
1
2
3
4
5
6
7
8
1A 1B 2A 3A 4A 5A 6A 7A 8A
STOP
X
O
O
O
O
O
O
O
O
FAN ONLY
X
O
O
O
O
X
O
O
O
LOW FAN
X
O
X
X
X
O
X
O
O
HIGH FAN
X
O
X
X
X
O
O
X
X
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 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 circuit
breaker.
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.
cut JW3 jumper.
5. Typical unit-mounted thermostat wiring shown.
6. 24-V alarm signal shown. For dry alarm contact,
6. 24-V alarm signal shown. For dry alarm contact,
cut JW1 jumper and dry contact will be available
between AL1 and AL2.
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.)
(Ground available from top two standoffs as
shown.)
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
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
>>