9
OAD
24V
AC
SPT
M
SA
T
RMT/FS
communications
CCN
Not Used
communications
CCN
2
3
1
J1
+24V DC
Equipment Ground
HIGH
MED
LOW
sensor
speed control from a
T57
Add these wires for manual
T56
or T57
sensor
from a
Setpoint adjustment
Add this wire for
HEA
T2
HEA
T1
DX2
DX1
Cool Relays
Heat Relays
BLK
M BLU
L
RED
H BLK
WHT
24V
AC
DX2
V
alve
T
ransformer Ground
Fan Relays
Fan Motor
V
oltage
Line
V
oltage
Line
ON
FA
N
HEA
T2
HEA
T1
COM
CONDSW
CNGOVR
T56
SA
T
SPT
IAQ
SPEED
+10V
GND
GND
GND
GND
GND
RH
Damper
Air
Fresh
HIGH
MED
LOW
F
AN AC
B
W
R
-
B
GND
W
+
R
24 V
A
C
DX1
V
alve
F
ig
. 8 — Fa
n Co
il Co
ntr
o
lle
r
Wiring — Two-St
age
DX Coolin
g, Two-
St
ag
e Ele
c
tr
ic
He
at,
Th
ree
-Spe
e
d Fa
n
with Op
tiona
l Ma
nual Spee
d Co
ntro
l Applicat
ions
→
1001
