Hi
I have replaced old ceiling fan with new inline Vent-Axia ACM100T installed in the loft. The old fan was feed from ceiling rose through DP pull cord switch and 3AMP FCU using two core cable (main supply -> DP -> FCU -> fan). According to manufacture instruction new fan should be provided with a local double pole isolator switch and must not be earthed (see below attached wiring diagram).
I had to change installation as new fan requires LS for timer to work. Main supply feeds from ceiling rose to FCU then to DP (two core cable) and then from DP (3 core and Earth 1mm2) to the fan (main supply -> FCU -> DP -> fan).
DP is old Crabtree pull switch with L1 L2 L3 L4 terminals. Feed in from FCU: live (red) to L3, neutral (black) to L2, earth (yellow) to earth terminal. Feed out to fan: live (brown) to L3, live S (grey) to L4, neutral (black) to L2, earth not connected at the moment. L1 terminal is not in use.
Fan: neutral (black) to N, Live S (grey) to LS, live (brown) to L, earth not connected.
Other info: bathroom has window and pull cord switch is only used to operates fan (light has separate switch). I hope the above info make sense.
Fan and timer works OK but I have the following questions:
1. Is my new installation correct and with accordance to manufacture guidance?
2. Is it with accordance to the current building standards and regulations?
3. Is DP wired correctly as I wasn't sure about this. I assume that neutrals should be connected together and permanent lives as well?
4. Should I use 3 core cable from FCU to DP? I found some similar topics were 3 core was used. If so why?
5. Is it required to install 3 pole fan isolator in my case?
6. What about feed out Earth from DP to fan? Should it be connected to earth terminal at DP? What about at the fan side ?
7. Are cable colours used correctly?
8. Did I missed something? I'm not a sparky and would like to sleep well
Thanks in advance.
I have replaced old ceiling fan with new inline Vent-Axia ACM100T installed in the loft. The old fan was feed from ceiling rose through DP pull cord switch and 3AMP FCU using two core cable (main supply -> DP -> FCU -> fan). According to manufacture instruction new fan should be provided with a local double pole isolator switch and must not be earthed (see below attached wiring diagram).
I had to change installation as new fan requires LS for timer to work. Main supply feeds from ceiling rose to FCU then to DP (two core cable) and then from DP (3 core and Earth 1mm2) to the fan (main supply -> FCU -> DP -> fan).
DP is old Crabtree pull switch with L1 L2 L3 L4 terminals. Feed in from FCU: live (red) to L3, neutral (black) to L2, earth (yellow) to earth terminal. Feed out to fan: live (brown) to L3, live S (grey) to L4, neutral (black) to L2, earth not connected at the moment. L1 terminal is not in use.
Fan: neutral (black) to N, Live S (grey) to LS, live (brown) to L, earth not connected.
Other info: bathroom has window and pull cord switch is only used to operates fan (light has separate switch). I hope the above info make sense.
Fan and timer works OK but I have the following questions:
1. Is my new installation correct and with accordance to manufacture guidance?
2. Is it with accordance to the current building standards and regulations?
3. Is DP wired correctly as I wasn't sure about this. I assume that neutrals should be connected together and permanent lives as well?
4. Should I use 3 core cable from FCU to DP? I found some similar topics were 3 core was used. If so why?
5. Is it required to install 3 pole fan isolator in my case?
6. What about feed out Earth from DP to fan? Should it be connected to earth terminal at DP? What about at the fan side ?
7. Are cable colours used correctly?
8. Did I missed something? I'm not a sparky and would like to sleep well
Thanks in advance.