Fujitsu UTY-TTRX, Руководство по установке, Страница: 4 / 9

En-3
Case 2: Single-stage Cooling and Heating
(Example:Remote controller for 2-wire type)
(Locally purchased)
Max.
16 units
Indoor unit
Thermostat convertor
Thermostat
controller
Transformer*
208/230 VAC
24 VAC
24 VAC
Case 3: Single-stage Cooling and Heating with Dedicated Fan
Speed Relays (Example:Remote controller for 2-wire
type)
(Locally purchased)
208/230 VAC
24 VAC
24 VAC
Max.
16 units
Indoor unit
Thermostat convertor
Thermostat
controller
Transformer*
Fan
5. 1. Wiring method
Remote controller cable
This product
Thermostat cable
Thermostat
Controller
Max. 16 units
Indoor unit
(VRF/single/multi)
The connection example of thermostat convertor and thermostat controller is
shown below.
The connection method is different depending on the type of thermostat con-
troller. Connect them according to the following Cases.
For remote controller cable, 2 kinds of type, which are 2-wire type and 3-wire
type are available depending on the device to be connected.
(1
)
All wiring shown should be performed with 18 AWG thermostat wire.
(2) Terminals to thermostat controller on this product support 20-30VAC.
(3) High/medium/low fan signals are optional, and may not be available on
all thermostat models.
(4) W2 and Y2 signals are optional, and may be omitted for single-stage
thermostats. In addition, if Y2 and W2 are used, turn ON the DIP switches
SET3-1.
Case 1: Two-stage Cooling and Heating
(Example:Remote controller for 3-wire type)
(Locally purchased)
208/230 VAC
24 VAC
24 VAC
Max.
16 units
Indoor unit
Thermostat convertor
Thermostat controller
Transformer*
* Install the transformer, as necessary, per building code and manufacturer’s
installation instructions. Maximum Power: 5.0VA