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- 15 Jan 2024
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Hi,
I'm looking to install a new bathroom extractor fan in my bathroom as I have a windowless bathroom and the current one I have installed in bathroom ceiling is just a standard one and isn't powerful enough so looking to change this to a Manrose MF100t inline extractor fan.
Attached photos of the Hager J804 4 way terminal maintenance free box and also image of current existing wiring in current extractor fan. I have the 3 core and earth 1.5mm.
Looking at the current wiring in current fan, we have red, blue yellow and black wire.
The 3 core and earth cable have 4 wires - grey, black, brown and a bare wire without sleeve.
Just wanted to check, looking at the terminal box we have 4 terminal blocks with each block have 2 ports (not sure why).
Would this work as follows:
N - blue existing wire (one end) , grey wire oppostite end
Not 100% sure but 2nd terminal block appears to be for earth - yellow existing wire (one end), bare wire with a yellow / green sleeve on other end
L1 - red existing wire one end , brown wire opposite end
L2 - I am unclear on this one. We have black wire currenting exisiting and on new 3 core and earth. Would these connect together?
Also does anyone know why 2 ports per terminal block?
I'm looking to install a new bathroom extractor fan in my bathroom as I have a windowless bathroom and the current one I have installed in bathroom ceiling is just a standard one and isn't powerful enough so looking to change this to a Manrose MF100t inline extractor fan.
Attached photos of the Hager J804 4 way terminal maintenance free box and also image of current existing wiring in current extractor fan. I have the 3 core and earth 1.5mm.
Looking at the current wiring in current fan, we have red, blue yellow and black wire.
The 3 core and earth cable have 4 wires - grey, black, brown and a bare wire without sleeve.
Just wanted to check, looking at the terminal box we have 4 terminal blocks with each block have 2 ports (not sure why).
Would this work as follows:
N - blue existing wire (one end) , grey wire oppostite end
Not 100% sure but 2nd terminal block appears to be for earth - yellow existing wire (one end), bare wire with a yellow / green sleeve on other end
L1 - red existing wire one end , brown wire opposite end
L2 - I am unclear on this one. We have black wire currenting exisiting and on new 3 core and earth. Would these connect together?
Also does anyone know why 2 ports per terminal block?