Sinclair S therm Series - Wiring of the 2-Way Valve

132
◆
GSH-80TRB2-3, GSH-100TRB2-3, GSH-120TRB2-3 , GSH-140TRB2-3, GSH-160TRB2-3
L1 N
Power Supply
Terminal board XT1
L2 L3
Thermostat
Terminal board XT2
12 13 14 15 16 17 20 21
Pump
Water
(OUT)
Gate-
controller
L N 1 2 10 2 20 25 26 27 28
Other
thermal
3-way
valve1
2-way
valve1
Pump control
signal (OUT)
Water tank
pump control
signal
Pump
Water tank
power
11 2
A B
Water
heating
4.10 Wiring of the 2-Way Valve
The 2-way valve 1 is required to control water ow for cooling or heating operation. The role of 2-way valve 1 is
to cut o󰀨 water ow into the underoor loop when the fan coil unit is equipped for cooling operation.
General Information
Type Power Operating Mode Supported
NO 2-wire 230VAC 50Hz
Closing water ow Yes
Opening water ow Yes
NC 2-wire 230VAC 50Hz
Closing water ow Yes
Opening water ow Yes
(1) Normally Open type. When electric power is NOT supplied, the valve is open. (When electric power is
supplied, the valve is closed.)
(2) Normally Closed type. When electric power is NOT supplied, the valve is closed. (When electric power is
supplied, the valve is open.)
How to Wire 2-Way Valve:
Follow steps below to wire the 2-way valve.
Step 1. Uncover the front cover of the unit and open the control box.
Step 2. Find the terminal block and connect wires as below.