Roof Top Units
HA / 34 /45 /52 /61 / 75 / 89 / 110 RC
Roof Top Unit
24
12 V
GND
1
2
ALARM
24V
C
RT
ON/OFF
ı
12 V
GND
1
2
C
B
A
M
L
K
J
FAN AUX CONTACTOR
XB 01035
REMOTE SENSOR
RS485
NOTES
1. The remote sensor is optional.
2. If no remote sensor is used the BMS must be
configured to send local temperature. This is
done by selecting 1 zone and LCL in the set-up
routine.
3. Shielded cable is recommended for this control.
The RS485 communication wiring must be
twisted pair. Control wiring must be kept
separate from power wiring.
4. An “RT” or “Cont” alarm may appear in initial
start up. A signal from BMS will clear this
alarm.
SENSOR AND SETPOINT CONTROL OPTIONS FOR
SINGLE AND TWO STAGE UNITS WITH CAC CONTROLLER
U BMS CONTROLLER
CAC PCB
TERMINAL NUMBERS
OPTIONAL FAULT STATUS
INDICATION 24 V
OPTIONAL RUN STATUS
INDICATION 24 V
OPTIONAL ON/OFF SWITCH
OR TIME CLOCK CONNECTION
U
U
