**help** Should I Have An Isolator On My Extractor?

[Wattsy]

Domestic Ventilation Complience Guide 2010

Table 5.

6.0 Controls

A. Continuous ventilation systems should not allow the occupier to turn off the fan other than at the local isolator. Provision of an on/off function will result in the fans being operated intermittently and the required continuous air flow ventilation rates not being achieved.

 

[steptoe]

good reference Wattsy, 

 

[Wattsy]

Thanks

 

[SLIPSHOD & SLAPDASH]

Domestic Ventilation Complience Guide 2010

Table 5.

6.0 Controls

A. Continuous ventilation systems should not allow the occupier to turn off the fan other than at the local isolator. Provision of an on/off function will result in the fans being operated intermittently and the required continuous air flow ventilation rates not being achieved.

So a local isolator is needed then ? I must be reading this wrong as the above  statement contradicts itself as a local isolator is an on/off function.

 

[Wattsy]

This came up on the BPEC course and I thought the same thing. Because System 3 contains both cMEV & dMEV I think by "local isolator" they mean the one next to the main unit on a cMEV.

Seems to be open to interpretation like a lot of other thing in the regs.

The important bit the second sentence.