Page 5
HPXA16 SERIES
R
W3
C
G
R
C
Y2
Y1
W1
O
(Some connections may not apply. Refer to specific thermostat
and indoor unit.)
Outdoor Unit
Indoor Unit TB1
R
O
A2 Thermostat
Figure 6
W2
Y2
Y1
O
Y2
Y1
G
C
W1
W1
HPXA16 Outdoor Unit and Blower Unit
Thermostat Designations
Y2
OUT
Defrost
Board
DS
R
W3
C
G
R
C
Y1
W1
O
HPXA16 Outdoor Unit and CB31MV/CB32MV
Thermostat Designations
CB31MV /
CBX32MV TB1
D
R
H
W1
O
SignatureStat
A2 Thermostat
Figure 7
W2
Y1
O
Y1
G
C
W2
W1
RT−
14
L
(Some connections may not apply. Refer to specific thermostat
and indoor unit.)
Y2
Y2
Y2
Y2
OUT
Outdoor Unit
Defrost
Board
HPXA16 Wiring Diagram
Figure 8
Shipped as shown above with terminal crimped to blue wire; use terminal or
cut off terminal and splice blue wire with Y2 wire to indoor unit.
BLUE WIRE
WITH CRIMPED
TERMINAL
DEFROST
BOARD
DETAIL
Y2 OUT
