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CENTRAL HEATING

M

mickygard

Joined
8 Dec 2010
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Location
Warwickshire
Country
United Kingdom
changing honeywell t40 room stat for sunvic tlx 9201.Finding wiring a bit conf

using.Honeywell is connected with 4 core cable.Red-1 Blue-2 Yellow/green-Eth Yellow-3
Sunvic has1-common 2 satisfied
3-demand 4-connect to neutral.Are all four wires used if so can you tell me which goes to which.Thank you.
 
Hi there i belive that on your sun vic
your red is common, 1
your blue is neutral 4
your yellow is demand 3
satisfied 2 not used
green/yellow to earth. hope it helps
 

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