Roof Top Units
HA / 34 /45 /52 /61 / 75 / 89 / 110 RC
Roof Top Unit
25
MUL
MUL
MUL
MUL
MULTI UNIT CONTROL USING RCW2 SINGLE AND TWO ST
TI UNIT CONTROL USING RCW2 SINGLE AND TWO ST
TI UNIT CONTROL USING RCW2 SINGLE AND TWO ST
TI UNIT CONTROL USING RCW2 SINGLE AND TWO ST
TI UNIT CONTROL USING RCW2 SINGLE AND TWO STA
A
A
A
AGE
GE
GE
GE
GE
UNITS WITH CAC CONTROLLER
UNITS WITH CAC CONTROLLER
UNITS WITH CAC CONTROLLER
UNITS WITH CAC CONTROLLER
UNITS WITH CAC CONTROLLER
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
TO OTHER
UNITS
NOTES
1. The remote sensor must be used.
2. Unit address is set using DIP switches S9-S12
on the CAC controller.
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.
5. A maximum of 15 indoor units can be controlled
independently
MULTI UNIT CONTROL USING UBMS
SINGLE AND TWO STAGE UNITS WITH CAC CONTROLLER
OPTIONAL FAULT STATUS
INDICATION 24 V
OPTIONAL RUN STATUS
INDICATION 24 V
OPTIONAL ON/OFF SWITCH
OR TIME CLOCK CONNECTION
U BMS CONTROLLER
CAC PCB
TERMINAL NUMBERS
U
