Zone valve for combined heating and tap water systems.
Design
Motorised 3-way valve for on/off control.
Brass valve housing EN 12165 CW617N (MS58).
Pipe connections with compression fitting or external thread.
Actuator motor 7 VA, 230/24 VAC, 50 Hz, IP 40.
Operation time app. 8 seconds.
Connection by cable, 3-wire or Molex connector.
Signal connector 1-pole SPST.
Cable specification and electrical connection
Cable specification: R03VV, 3x0,75 mm²
Wire colours: blue, brown, black
External insulation: PVC, black
Molex® or Molex® compatible connector, 6-circuit
Electrical connection according to connection diagram
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Max differential pressure: 0,1 MPa
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Max working pressure: 1,0 MPa
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Working temperature: 5 - 80°C (90°C briefly)
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Ambient temperature: 1-60°C
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Leakage: < 0,1% of kvs
Type approval certificates
CE and TÜV (only the activator)
Fitting / Installation
The zone valve must not be installed with the motor underneath the valve unit.
The motor is installed by pressing it on and snapping the linch pin in place. The motor is removed by pulling the pin out and pulling the motor straight out.
It is easier to fit the compression fitting if lubricant is applied to the thread and bevel. Tighten first by hand and then with a box spanner. Soft pipes are to be fitted with a support sleeve.
Operation and maintenance
The valve unit does not need any maintenance.
If the supply power is cut, the valve stays in its current position.
When the power is switched off, the valve can be manually set to the centre position, which distributes the flow between the heating and tap water circuits. Remove the motor and turn the spindle about 30°, or turn until hot water flows through both valve ports. When the power is restored, turn the valve back to its original position and re-install the motor.
Note! The motor can only be installed in one position.