Page 42
GRY
BRN
DRNWR
BLK
GRY
RED
YEL
PNK
PNK
12 34
1245
123436
1
PNK
2
3
4
5
ORN
6
7
8
YEL
1
2
1
2
1
BLU
2
1
2
1
2
3
4
5
6
1
2
1
2
1
2
1
2
3
4
5
6
1
2
1
2
YEL
4
GRY
5
9
10
1
3
1
3
BLU
GRY
GRY
RED−BLK
YEL
RED
YEL
BLU
YEL
GRY
RED−BLK
GRY
GRY
BLU
RED−BLK
RED−BLK
GRY
YEL
GRY
YEL
ORN
BLU
GRY
YEL
BLU
3
GRY
ORN
GRY
PNK
1
2
1
2
GRY
RED−BLK
GRY
RED
1
WHT
1
BLK
2
BLU
PNK
BLU
7
6
312
BRN
DRNWR
BLU
RED
WB−007
WB−015
1
3
BLU
BLU
BLU
12
YEL
3
P48
1
2
BLU
1
1
2
1
2
YEL
2
34
1
2
3
YEL
ORN
BLU
BLU
PNK
BLU
YEL
1
2
YEL
YEL
PNK
PNK
PNK
BLU
RED
PNK
BLU
RED
GRY
GRY
YEL
GRY
RED
ORN
GRY
1
36
GRY
ORN
GRY
WB−007
YEL
WB−015
PNK
PNK
12
3
GRY
RED
BLU
PNK
RED
2
GRY
3
RED−BLK
GRY
BLU
BLU
1
BLK
6
PNK
P426
P426
P426
P338
TO A3
P374−1
ON GAS
UNIT
ONLY
TO A3
B6−2
ON GAS
UNIT ONLY
A55
MAIN CTRL
24VAC
GND
24VAC
GND
GND
L1
24VAC
GND
J394
P394
J395
P395
COMP1
GND
COMP2
GND
J389
P389
J390
P390
HTSW1
P388
J388
24VAC
HPSW1
HTSW2
24VAC
LPSW1
24VAC
LPSW2
24VAC
P385
J385
RT17
GND
RT48
GND
RT49
GND
J382
P382
RT6
GND
RT46
GND
RT47
GND
ODF2
PWM3
GND
ODF1
PWM2
GND
J381
P381
P336
P337
OPTIONAL IONIZER
WIRING. SEE IAQ
WIRING DIAGRAM
P391
J391
GND
J392
P392
2
GND
K65
SHIELDED CABLE
TWISTED PAIR
P
4
1
3
J
4
1
3
TO A3 ON
GAS UNITS.
REF A−SECT
LOC CC01−02
P47
P52
A
B
G
T1
TOP
L3L2L1
BOTTOM
L2
SEE POWER ENTRY
DIAGRAM IN DISCONNECT
BOX FOR DETAILS
L1
T2
P24
P18
P132
FROM T1
LOC AA05
P106
WB−033
TO F10
LINE.L1
TO F10.LINE.L2
SECTI ON
A
HEATI NG
SECTI ON
B
COOLI NGCOOLI NG
SECTI ON
B3
SECTI ON
C
ACCS
SECTI ON
D
ACCS
FROM TB13
LOAD L1.T
FROM TB13
LOAD L3.T
L2
4
GND
L34
1
DENOTES OPTIONAL COMPONENTS AND WIRING
WB−032
TO AM1/AM2
LOC BB08
1
4
ODF3
PWM1
GND
Heat Pump Diagram with Higher SCCR
Product: LHT, LDT B Box − Y VOLT
Supersedes: XXXXXX−XX Form No:
Voltage: 208−230V/3~/60Hz (Y)
Rev: 0
538206− 01
LHT078/150 Y Voltage With Higher SCCR
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