Lennox Core Unit Controller User Manual

89
17. Wiring Diagrams
02
03
04
05
06
07
08
09
10
01
AA BB
CC
EE
DD
FF
RED
789 2
WHT
1
RED
34 5678910
RED
BLU
12
123
123
34 21
1236
26 7
PNK
GRY
WHT
YEL
YEL
YEL
YEL
YEL
RED
RED
BLK
BLK
RED
P255 P255
10
GRY
7x10
CUT
SIZE
Voltage: All Voltages
Model: LCM, LGM Series RTU
Supersedes: N/A Form No:
Thermostat
REV EC NO. DATE BY APVD REVISION NOTE
--- CN-00859410/15/2020RV MXR6 ORIGINATED AT PD&R CARROLLTON, TX
Rev: 0
Y
R
B
Y
Y
15
Y
R
B
16
17 12
YEL
YEL
YEL
YEL
RED
RED
BLK
BLK
RED- BL K
GRY
RED- BL K
GRY
YEL
YEL
YEL
YEL
PNK
PNK
GRY
1
GRY
910
24563
78 1023 981 456 7
RED
4361 2
1
P251 J251
1
J250 P250
2
3
4
2
3
4
1
P253 J253
2
3
4
1
J252 P252
2
3
4
1 8 7 2
WB- 031 WB- 030
B
A
A55. J297
A55. J297
1
ORN
2
YEL
1
J261
234
YEL YEL PNK GRY
123
12
RED RED
6
C AI -1 GND HUM GND AI -2
1, 5
A55. J 299
DI -1 R
FI RE AL ARMCONTACT
SUPPLI ED BY OT HERS
C
P299
J299
P387
J387
R
J297
P297
J298
P298
A55. J 298
A55. J 298
A55. J 298
2
3
4
538078-01
Re v0
538078- 01
HEATING
SECTION
A
COOLING
SECTION
B
WIRING DIAGRAMFLOW
SECTION
B3
COOLING
SECTION
C
ACCS
SECTION
D
ACCS
CTRL SMOKE
DETECT
A173
5
6
SENSOR1SENSOR2
77
7
S52
ION
TEMP
RCGY1CY1 Y2
RCIAQ+
RCIAQ+
RIAQ+IAQ-
C
SUPERMARKETREHEAT
3STAGE COOL ING/
3STAGE HEATING
BACNET GA TEWAY
GND
DENOTESOPTIONALCOMPONENT S
ANDWIRING
GND
CL ASSIIFIELD WIRING
5
FREE
8
A55
MA INCT RL
GND
DI -1
R
9
R
DI -4
C
FREE
S27
C
DI -2
R
DI -3
TO PROVIDESUPERMA RKET
REHEAT SCHEME USES86
DEHUMI DI ST AT ANDK55
C G W1
TO M4 THERMOSTAT INPUT
Y1
FROM IAQ
WIRINGDIAGRAM
OCP
GND
GL O DO-1 Y2
P424
R
ALLOTHER
THERMOSTAT SI GNAL S
REMA INCONNECTED
AS SHOWNONTHE TOP
TO PROVIDETHREE
COMPRESSOR STAGES.
REQUIRES 3HEAT,
3COOLTHERMOSTAT
ANDK27 RE LAY
J298 J297 J299
J387
A55
W2
24VAC
45
S149
R
Figure 36. Wiring Diagram - Part 1

Lennox Core Unit Controller Specifications

General

Brand	Lennox
Model	Core Unit Controller
Category	Controller
Language	English