Hi,
We need to get retrospective building regs approval and our cloakroom (just toilet and basin). Currently it has a bog standard fan that is controlled with the light switch cord.
We need to replace this with a timed one to meet the regs.
Looking on the net it seems timed extractor fans need 3 core and need to be connected to a 3 pole isolator switch. Out current setup just has fan connected by 2 core to a junction box with the lighting circuit, light switch and light.
I've been looking at wiring diagrams but not too sure. Is it ok to remove the 2 core from the junction box, connect a 3 core from the junction box to a 3 pole isolator switch and then have the isolator switch hooked up to a new timed fan?
If so, as it is only a cloakroom, I believe it would be OK to fit the isolator switch inside the toilet just above the door (quite near the light switch and fan).
We need to get retrospective building regs approval and our cloakroom (just toilet and basin). Currently it has a bog standard fan that is controlled with the light switch cord.
We need to replace this with a timed one to meet the regs.
Looking on the net it seems timed extractor fans need 3 core and need to be connected to a 3 pole isolator switch. Out current setup just has fan connected by 2 core to a junction box with the lighting circuit, light switch and light.
I've been looking at wiring diagrams but not too sure. Is it ok to remove the 2 core from the junction box, connect a 3 core from the junction box to a 3 pole isolator switch and then have the isolator switch hooked up to a new timed fan?
If so, as it is only a cloakroom, I believe it would be OK to fit the isolator switch inside the toilet just above the door (quite near the light switch and fan).