To replace a manifold actuator you need to identify the size and voltage 
Actuator for a Chrome Plated Manifold 24v
Uponor Code Number
1002053
Actuator for a Chrome Plated Manifold 230v
Uponor Code Number 1013006 
Actuator for a Brass
Manifold 24v
Uponor Code Number
1007249
Actuator for a Brass
Manifold 230v
Uponor Code Number 1022244
Click link below for a step by step guide to change a Wirsbo Manifold Actuator ![]()
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Uponor Products are available from your local Plumbing & Heating Trade Outlets