10
+24V DC
OAD
24V
AC
Equipment Ground
HIGH
MED
LOW
CWV
sensor
speed control from a
T57
Add these wires for manual
T56
or T57
sensor
from a
Setpoint adjustment
Add this wire for
HEA
T
2
HEA
T1
Heat Relays
SPT
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
M
SA
T
ON
FA
N
HEA
T
2
HEA
T1
COM
CONDSW
RMT/FS
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
communications
CCN
Not Used
communications
CCN
C
O
M
C
L
O
P
2
4
V
Optional
24 V
AC for
modulating
Spring return
valves
J1
1
2
3
F
ig. 9 — Fa
n Coil Co
ntro
ller
Wiring — Tw
o-
Sta
g
e
DX C
o
oli
n
g,
M
o
dula
ti
ng
He
at
,
Th
ree-
Spe
e
d Fan
wit
h
Opt
ional Man
u
al Spee
d
Con
tro
l Applic
at
io
ns
→
1001
