Changing the Middleport Valve. Drayton.

Make sure you and others are safe at all times. Only do the jobs you are fully trained and/or confident to do.
Make sure that central heating system water is switched off and drained.
Make sure electricity is switched off before committing any work.
Changing ACL Lifestyle Mid-position valve 240 volts 50Hz 6 Watts 22mm 679H340-30L0 to Drayton Mid position actuator 230 Volts, 50 Hz, 6 Watts MA1.
Changing 3 position mid-position valve.
Like for like exchange.