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Quick Reference Guide - Page 18
3-way mixing valve connection
Required Actuator Specification
Electrical Specification:230 V; 50 Hz; <100 mA
The 3-way mixing valve is used to achieve the temperature differential needed in a 2-zone heating
system.
• Connect the 3-way mixing valve in accordance with the diagrams below:-
Hot water cylinder connection (optional)
• Please refer to “Electrical supply/cable specifications” for fuse/cable size and for
connection details.
Electrical Connection (Hot Water Cylinder Electric Heater)
• The electric heater, incorporated in the hot water cylinder, requires a separate supply to Hydro
Unit.
• Connect the hot water cylinder heater electrical supply in accordance with shown below:
Live conductor: Terminal L on Terminal Block 03
Neutral conductor: Terminal N on Terminal Block 03
Earth Conductor: Earth terminal on Terminal Block 03
• Connect the hot water cylinder heater to the Hydro Unit as shown below:
Live conductor to hot water cylinder: Terminal 1 on Terminal Block 03
Neutral conductor to hot water cylinder: Terminal 2 on Terminal Block 03
Earth conductor to hot water cylinder: Earth terminal on Terminal Block 03
Electrical Connection (Hot Water Cylinder temperature Sensor)
• Connect the hot water cylinder temperature sensor as shown below to terminals A & B on
Terminal Block 06 in the Hydro Unit.
• Please ensure that the interconnecting cable, between the Hydro Unit and the hot water cylinder,
is connected to earth at both ends of the cable using the shield wire.