Fujitsu Airstage J-II Series Design & Technical Manual page 512

z Single-stage Cooling and Heating with Dedicated Fan speed Relays
„
Example: Remote controller for 2-wire type
Terminal
name
TC
C Common to the thermostat controller
TR
R Power supply to thermostat controller
G3
G2
G1
Y2
Y1
W2
W1
G
NOTES:
● For remote controller cable, 2-wire type and 3-wire type are available depending on the device to be
connected.
● All wiring shown should be performed with 18 AWG thermostat wire.
● Terminals to thermostat controller on Thermostat convertor support AC 20 to 30 V.
● HIGH/MEDIUM/LOW fan signals are optional, and may not be available on all thermostat controllers.
● Signals for stage 2 are optional. W2 and Y2 terminals may not be used in single-stage thermostats. To use the
stage 2 signals, turn on the DIP switch SET3-1 on each convertor.
● Up to 16 indoor units be controlled with a single thermostat controller. Multiple indoor units connected to one
thermostat convertor are operable by the same operating setting.
● Two or more types of VRF system, single model, or multi systems cannot be mixed together.
controller
Thermostat
Fan
AC 24 V
Thermostat convertor
AC 24 V
Transformer*
(Locally purchased)
AC 208/230 V
* Install the transformer, as necessary, per building code and manufacturer's
installation instructions. Maximum Power: 5.0 VA
Application
Common (In) from transformer
Power supply from transformer
Airflow High
Airflow Medium
Airflow Low
Cooling stage 2
Cooling stage 1
Heating stage 2
Heating stage 1
Fan
- (05 - 149) -
Indoor unit
Max.
16 units