THE ACUATOR IS INTERCHANGEABLE WITH MOST POPULAR PORT VALES
The OP-MIDH is a 3 Port Mid-Position spring return valve actuator that fits the 22mm & 28mm Optimum 3 port valves. This is for general purpose flow control applications or central heating systems. When correctly wired with an appropriate room thermostat, cylinder thermostat and programmer the valve will control the water from the boiler to hot water and from the boiler to central heating. Supplied with protective plastic covering on the actuator to avoid scratches during shipping/installation and is easily removed once the installation is complete.
Installation:
When replacing the valve actuator, set the Auto/Manual lever to the “Manual Open” position before removal. On the replacement actuator set the Auto/Manual lever to “Manual Open” position before fitting. All controls must be earthed. All valves should have a means of disconnection from the electrical mains supply which incorporates a contact separation of at least 3mm in all poles. All wiring should be carried out to IEE Regulations
Wiring:
Green & Yellow – Earth
Blue – Neutral
White – Live (from Room thermostat demand)
Grey – Cylinder Thermostat Satisfied / Hot water off
Orange – Cylinder Thermostat Call / live to Boiler & Pump
Specification:
- Fits 22mm and 28mm Optimum Mid-Position Valves
- Supply Voltage 220-240V AC 50 Hz
- Power consumption 6W
- Water temperature range: 5°C to 88 °C
- Cable length one metre
- Max. Ambient temperature 52 °C
CODE: OP-MIDH (3 Port Mid-Position Actuator 22mm & 28mm)