Carrier 50KQA Product Data page 31

REMOTE-MOUNTED THERMOSTAT WITH DELUXE D CONTROLLER
Power Supply
Refer to Data Plate
Use copper
conductors only.
See Note 2 L2
Refer to Disconnect
box for optional
L1
power supply connection
Optional
Cord
L2 (ribbed)
Connection
Ground
L1 (plain)
BRN
SEE
NOTE 7
Class 1 or 2
Class 1 Wiring
Wiring acceptable
required inside
outside control box
control box
Compressor
Y
Cooling
O
O/W2
Fan
G
24 VAC
R
Common
C
Alarm
X1
AL1
Typical Heat
Pump T-stat
SEE NOTE 5
RED
TIME CLOCK
BRN
CLOSED=UNOCCUPIED
BRN
WHT
NLL
BRN
YEL
WV
RED
ORG
YEL YEL
YEL
DM
COM
OVERRIDE
OV
OVERRIDE
COM
OV
OVERRIDE
WITH DIGITAL T-STAT
AL — Alarm Relay Contacts
— Blower Motor
BM
Cap — Capacitor
CB — Circuit Breaker
CO — Condensate Overflow
— Compressor Relay
CR
DM — Damper Motor
FP1 — Sensor, Water Coil Freeze Protection
FP2 — Sensor, Air Coil Freeze Protection
FSS — Fan Speed Switch
HP — High-Pressure Switch
LOC — Loss of Charge Pressure Switch
NLL — Night Low Limit Thermostat
P1 — Field Wiring Terminal Block
PB — Power Terminal Block
RVS — Reversing Valve Solenoid
Trans — Transformer
— Unit Performance Monitor
UPM
WV — Water Valve
Ground
Neutral on 265V Systems
RED
BRN
CB (265V)
Trans BLK
RED
(208V)
ORG
WHT
230V
(115V)
YEL
BLU
C
R C S
COM2
R
P1
Y1 1
2
Y2
W1 3
4
5
G
6
R
7
C
8
SEE
ALARM NOTE 6
P2
RELAY
JW4
AL2
AL2 DRY
R
NSB
C
ESD
OVR
H
A
P3
R
NO1
ACC1
NC1
RELAY
OFF ON
1 UPM: Disable/Enable
NO2
2
ACC2 Unit Stage: 2/1
NC2
3 T'stat: Heat Cool/Heat Pump
RELAY
RV on B/RV on O
4
Dehumid/Normal
5
Not Used
6
R
Boilerless: Enable/Disable
7
8 Boilerless: 40°F/50°F
S1
DIP SWITCH
PACKAGE
LEGEND
----------
H
BLU
CAP
6 8
C RED RED
CR
F
BLK 2 4
BLK
2 B (HIGH)
BRN
BM
YEL
1 A (LOW)
SEE
NOTE 3 GRY
S C
COM1
COM
NO
GRY
D
NO
Microprocessor
Control Logic
STATUS
G
Y
TEST
R
FAULT
RV
RELAY
TEST
PINS
SEE
JW3
FP1 Low
NOTE 4
JW2
FP2 Low
JW1
LP N.O.
OFF ON
1
ACC1
2
Functions
3
4
ACC2
5
Functions
6
H: hi fan/dehumid
7
8 Not Used
S2
DIP SWITCH
PACKAGE
NOTES:
1. Compressor and Blower Motor thermally protected
Field Line Voltage Wiring
2. All wiring to the unit must comply with NEC and local
Field Low-Voltage Wiring
Printed Circuit Trace
3. Transformer is wired to 115V (WHT) lead for 115/1/60
Optional Low Voltage
Wiring
Relay Contactor Coil
4. FP1 Thermistor provides freeze protection for
Solenoid Coil
Thermistor
5. Typical heat pump thermostat wiring shown. Refer to
Ground
6. 24 V Alarm Signal shown. For Dry Alarm Contact, cut
7. Transformer secondary ground via Deluxe D board
Ground
PB
S Compressor
Cap
R
C
BLK
RED
1
3
FSS
2
SEE
FAN ENABLE NOTE 7
RELAY
GRY
BLK
COM
FAN
SPEED
RELAY
NC
1
RED
HP
HP
2 RED
3
BLU
LOC
LOC
BRN
4
5
GRY
FP1 SEE
FP1
6
GRY
NOTE 4
7
VIO
FP2
FP2
VIO
8
9 (LOCATED IN COMPRESSOR COMPARTMENT)
BRN
RV
RVS
10 ORG
Not Used
CO 12
P7
24V
DC
EH1
EH2
P6
CCG
BRN
1 BLOWER MOTOR WIRING
COMPR
UNIT SIZE
CR
RELAY
007
CC
YEL
0
009
012
015
019
internally.
codes.
units, 265V (BRN) Lead for 265/1/60 units or 208V
(RED) Lead for 208/1/60. For 230/1/60 switch RED
and ORG Leads at L1 and insulate RED lead. Trans-
former is energy limiting or may have circuit breaker.
WATER. When using ANTI-FREEZE solutions, cut
JW3 jumper.
thermostat Installation Instructions for wiring to the
unit.
AL2DRY(JW4) Jumper and Dry Contact will be avail-
able between AL1 and AL2.
standoffs and screws to Control Box. (Ground avail-
able from top two standoffs as shown.)
CR
Transformer
Deluxe
D
FAN SPEED SWITCH
1
2
3
POLE A POLE B
5 3
5 3
5 4
4 3
4 3
31