Looking to install a PIV (positive input ventilation) unit in the loft.

Spec says max draw of the unit is 16w.

Technically/legally can I connect this into the lighting circuits
accessible in the loft space?

If so would a switched fused spur be in order? Or something more?
(Or less :-) )

TIA

--
Jimk


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On Friday, 31 January 2020 08:32:50 UTC, JimK wrote:
Looking to install a PIV (positive input ventilation) unit in the loft.

Spec says max draw of the unit is 16w.

Technically/legally can I connect this into the lighting circuits
accessible in the loft space?

If so would a switched fused spur be in order? Or something more?
(Or less :-) )

Yes, and optional if the mfr's instructions want a 3 amp fuse. Personally I would FCU it.

Owain

On 31/01/2020 08:32, Jimk wrote:
Looking to install a PIV (positive input ventilation) unit in the loft.

Spec says max draw of the unit is 16w.

Technically/legally can I connect this into the lighting circuits
accessible in the loft space?

Yes

If so would a switched fused spur be in order? Or something more?
(Or less :-) )

If the makers instructions say it needs to be fused below 6A (or
whatever the rating of your lighting circuit MCB), then you would need
to connect via a FCU with appropriate fuse... (in reality a switched FCU
would be a better option anyway since it gives a nice place to break
into the circuit and terminate the connections without needing to do it
at a ceiling rose, which probably has enough wires already).


--
Cheers,

John.

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