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51302523981-A
Models 2 X 09 / 2 X 12 Wiring Diagram Heat pump
TB 1
G
R
/
Y
E
L
B
L
K
W
H
T
HLTV
BLK
* BLUE
* BR
*GR/YEL
FAN
J1
K4
K3
K2
K1
DC RTN
FAN
FUSE
6A
W
H
T
RVS
BLK
RVS
B
R
N
FC
COMP 1
TB
*
B
L
U
E
PH-AC
COMP 1
30VDC
Power Supply
*OR
L1 BR
*** GR/YEL
GREEN
GREEN
***GREEN
1
6
5432
TAC 673
Relay Board
AC
IN
DC Out (+)
BLK
***RED
DC RTN (-)
DC
Out
TB
BLK
BLK
GND
H.L.T.V
1
2
3
4
5
6
+30 VDC
HLTV
COMP 1
RVS
DC RTN
FAN
2
2
GR/YEL
L1
N
* BR
* BLUE
TB 1
G
R
/
Y
E
L
B
L
K
W
H
T
HLTV
BLK
FAN
J1
K4
K3
K2
K1
DC RTN
FAN
FUSE
6A
W
H
T
RVS
BLK
RVS
B
R
N
COMP 1
*
B
L
U
E
PH-AC
COMP 1
30VDC
Power Supply
*OR
N
B
L
U
E
L1 BR
*** GR/YEL
GREEN
GREEN
***GREEN
TAC 673
Relay Board
AC
IN
DC Out (+)
BLK
***RED
DC RTN (-)
DC
Out
TB
BLK
BLK
H.L.T.V
1
2
3
4
5
6
+30 VDC
HLTV
COMP 1
RVS
DC RTN
FAN
1
GND
GND
GR/YEL
GR/YEL
NNL1L1
DC
RTN
DC
RTN
I N D O O R U N I T
TH2
**WH
**YEL
**GREEN
**RED
J12
J6J7
J8
FAN
RVS
COMP.
BLK
J18
RED
K6
K5
K1
K2
STEPPER
MOTOR
BLUE
+30V
WH
K8
K9
K7
J11
FAN 1
FAN 3
FAN 2
J14
BLK
RED
1
3
+12V
-12V
BLK
WH
RED
GREEN
BLDC
MOTOR
J1
J5
1
3
J3
J4
TH1
TAC 670 control
TAC 671 Main
Board
TAC672 B
Motor Control
M
132
YEL
GR/YEL
2
3
4
6
5
TB
H.L.T.V
1
OR
**OR
GND
TH3
**BLK
I N D O O R U N I T
TH2
**WH
**YEL
**GREEN
**RED
J12
J6J7
J8
FAN
RVS
COMP.
J18
K6
K5
K1
K2
STEPPER
MOTOR
K8
K9
K7
J11
J14
BLK
RED
1
3
+12V
-12V
BLK
WH
RED
GREEN
BLDC
MOTOR
J1
J5
1
3
J3
J4
TH1
TAC 670 control
TAC 671 Main
Board
TAC672 B
Motor Control
M
321
YEL
GR/YEL
2
3
4
6
5
TB
H.L.T.V
1
OR
**OR
GND
TH3
**BLK
654321
B
L
K
W
H
T
B
R
N
R
E
D
B
L
K
Y
E
L
/
G
R
W
H
T
B
R
N
R
E
D
FAN
MOTOR
RVS
HLTV
RVS
HLTV
*** -16 AWG
** -14 AWG
* -12 AWG
ALL OTHER WIRES 18 AWG
- Splice
- Terminal (Unmarked)
Factory Wiring
Field Control Wiring
Field Power Wiring
CC -Compressor Capacitor
COMP-Compressor
FC -Fan Capacitor
GND -Ground
RVS -Reversing Valve Solenoid
HLTV -Heating Low Temp.Valve
TB -Terminal Block
BLDC - brushless DC
TH 1 -Return air sensor
TH 2 -Indoor coil sensor
TH 3 -Outdoor coil sensor
LEGEND
N
Mains AC Supply
L1
115 VAC
BLK
TH3
BLK
TH3
2
2
1
1
2
1
CC
*
B
R
*
B
L
K
*
B
R
*
B
L
U
E
1
COMP.
C
S
R
CC
*
B
L
K
*
B
R
*
B
L
U
E
2
COMP.
C
SR
*
B
R
G
R
/
Y
E
L
R
E
D
+
3
0
V
D
C
B
L
K
D
C
R
T
N
Y
E
L
V
S
P
W
H
T
+
1
2
V
D
C
BLK
RED
BLUE
+30V
WH
FAN 1
FAN 3
FAN 2
O U T D O O R U N I T
2
2
GR/YEL
1
1
1
- Indoor unit 1 circuit
2
- Indoor unit 2 circuit
1
1
1
2
2
2
1
FAN
MOTOR
FC
2
5
4
3
2
5
4
3
1
5
4
6
1
2
3
4
5
6
RED +30VDC
BLK
DC RTN
YEL
VSP
WHT+12VDC
1
2
3
4
5
1
2
3
4
5
N BLUE
1
2
3
4
5
1
2
3
4
5
6
1
2
3
4
5
1
5
4
6
Fig. 13 System Wiring Schematic DFF2H
H09J1A, DFF2H
H12J1A FAN COIL WITH DFC2H
318J2A, DFC2H
318J2A Condensing Unit