12
2
4
6
8
10
12
14
16
1
3
5
7
9
11
13
15
+24VDC SUPPLY
SPT
GROUND
SAT
FAN STATUS OR REMOTE S/S
CHANGEOVER SENSOR
GROUND
T56 SETPOINT OFFSET
GROUND
COND PUMP
GROUND
MANUAL SPEED
+10 VDC
IAQ
GROUND
RH
J4
1
2
3
4
5
J6
J7
1
2
24VAC
OAD
FAN (24VAC)
FAN ON
LO SPEED
MED SPEED
HIGH SPEED
LEGEND
*Use shielded wire.
NOTES:
1. Terminals 1 and 3 provide switched 24 VAC
output power to the load.
2. Terminal 5 connects to field-supplied 24 VAC.
3. The 24 v connection (J4-16) is required for
RH sensor only.
DI
—
Direct Input
FS
—
Fan Status
IAQ —
Indoor Air Quality
RH
—
Relative Humidity
SAT —
Supply-Air Temperature
SPT —
Space Temperature
S/S
—
Start/Stop
Fig. 11 — Fan Coil Controller Inputs
Fig. 12 — Fan Coil Controller Daughter Board Outputs
Daughter Board Outputs (J6, J7)
*For single-speed fan units, connect fan start/stop to control fan contactor.
NOTE: J6-1 must be jumpered to 24 VAC +. (J1-1).
CHANNEL TERMIN,–)
DESCRIPTION
CONTROL DEVICE
FAN AC
J6-1, J1-1
Fan Input Power
24V, 5A
FAN ON
J6-2, J1-2
Fan Start/Stop*
24V, 5A
LOW
J6-3, J1-2
Low Speed
24V, 5A
MED
J6-4, J1-2
Med Speed
24V, 5A
HI
J6-5, J1-2
High Speed
24V, 5A
OAD
J7-1, J7-2
Outdoor Air Damper
24 VAC 1A
→
Inputs (J4)
CHANNEL
J4 PINS (+,–)
DESCRIPTION
CONTROL DEVICE
SPT
14, 12
Space Temperature
10K Thermistor
SAT
10, 12
Supply Air Temperature
10K Thermistor
SP_OFFSET (T56/T57)
8, 12
Set Point Offset Adjust
100K Potentiometer
CNGOVR
4, 6
Changeover Sensor
10K Thermistor
RH
16 (24 VDC),
15 (+), 13 (–)
RH Sensor
2-10 VDC
SPEED
9*, 7 (+), 5 (–)
Manual Speed Position
0-10 VDC
CONDSW
3, 9*
Condensate Pump Sensor
0-10 V (DI)
IAQ
11 (+), 13 (–)
Indoor Air Quality Sensor
0-10 VDC
FS OR REMOTE S/S
2 (24 VDC),
J1 Pin 1 (Gnd)
Fan Status or
Remote Start/Stop
24 VAC (DI)
1001
