Hello,
I'm trying to replace a sunvic SM5203 2 way valve with a honeywell v4043H motorised zone valve. The colouring of the sunvic wires and honeywell wires don't match: sunvic had: earth, blue, orange, yellow, and white. honeywell has: earth, blue, orange, buff, grey.
Are the wires equivilent with buff = yellow and grey = white? and also, when removing the wall plate the orange wire must have come loose, and there is no obvious gap that it came from.
Any help appreciated, I have the wiring diagram but it bares no resemblance to wires coming out of the wall (happy to post sketch of this if helps) - no emergency as the valve has an overide open position, so I have heating and hot water, but I'd like to get it all nicely working.
If it helps, there is only one valve, so either when the valve is closed the hot water rises from the boiler and goes round the cylinder and back to the boiler, or when the valve is open it goes round the cylinder and the radiators. Oddly, and on a slight tangent, I don't know why the cylinder thermostat is therefore wired in, as it would seem that if the cylinder's tap water is hot enough it turns off the pump, and I can't have any central heating?
Thanks,
I'm trying to replace a sunvic SM5203 2 way valve with a honeywell v4043H motorised zone valve. The colouring of the sunvic wires and honeywell wires don't match: sunvic had: earth, blue, orange, yellow, and white. honeywell has: earth, blue, orange, buff, grey.
Are the wires equivilent with buff = yellow and grey = white? and also, when removing the wall plate the orange wire must have come loose, and there is no obvious gap that it came from.
Any help appreciated, I have the wiring diagram but it bares no resemblance to wires coming out of the wall (happy to post sketch of this if helps) - no emergency as the valve has an overide open position, so I have heating and hot water, but I'd like to get it all nicely working.
If it helps, there is only one valve, so either when the valve is closed the hot water rises from the boiler and goes round the cylinder and back to the boiler, or when the valve is open it goes round the cylinder and the radiators. Oddly, and on a slight tangent, I don't know why the cylinder thermostat is therefore wired in, as it would seem that if the cylinder's tap water is hot enough it turns off the pump, and I can't have any central heating?
Thanks,