Motorised valves

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15 Jul 2012
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Location
Buckinghamshire
Country
United Kingdom
I have failed Sunvic Mo-Mo actuator (SM5203). I have purchased a Dunfoss HPA2 to replace it. This Mo-spring return. Is this a valid replacement?
If ok then my question relates to identifying wiring equivalents.
OLD sunvic has orange, yellow, white and blue.
NEW HPA2 has brown, orange, grey and blue.
Does anyone know how they correspond?
TH1680
:)
 
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Your old valve is motor open motor shut going by the wire colours. You'll have to look for a conversion diagram. If I remember correctly you may have to convert both valves to motor open spring return.
 
If ok then my question relates to identifying wiring equivalents.
OLD sunvic has orange, yellow, white and blue.
NEW HPA2 has brown, orange, grey and blue.
Does anyone know how they correspond?
No need to convert both valves.

Sunvic - HPA2
White - not used. Make safe.
Yellow - Brown
Blue - Blue
Orange - Orange

Connect the grey to the permanent Live terminal of the wiring centre (usually terminal 1).
 
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If ok then my question relates to identifying wiring equivalents.
OLD sunvic has orange, yellow, white and blue.
NEW HPA2 has brown, orange, grey and blue.
Does anyone know how they correspond?
No need to convert both valves.

Sunvic - HPA2
White - not used. Make safe.
Yellow - Brown
Blue - Blue
Orange - Orange

Connect the grey to the permanent Live terminal of the wiring centre (usually terminal 1).
Many thanks Danfoss confirmed this and all done and working.
TH
 

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