20
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 the 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
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 or the earth conductor of the
interconnecting cable.
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.