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Dolphin shower installed in 2000.

Sparkingchip
d35ee5eac4f417f1de1dffee148404bb-huge-img-20210928-wa0001.jpg

 

A photo from a plumber of a twenty one year old Dolphin shower he is replacing, he wants to know what the black wire is for. 

My first thought was it's for a waste pump, but he cannot see one and a watering can full of water ran away down the waste. 

There's no sign of an extractor fan either, so I said terminated it and leave it in the enclosure. 

Anyone aware of something we have missed?

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    The long thin ceramic rectangle near the inlet valve looks like an add-on resistor. Is it in a location where freezing up is an issue  ?  If so perhaps a frost stat ?  Is it just one core or a multicore ? Clearer pics or description needed.

    Looks like it may be the 860 ?  if so the heater is 'direct to water' rather than an immersion type, hence all the extra earthing, and you cannot have an RCD.
     

    Mike.

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  • 0

    The long thin ceramic rectangle near the inlet valve looks like an add-on resistor. Is it in a location where freezing up is an issue  ?  If so perhaps a frost stat ?  Is it just one core or a multicore ? Clearer pics or description needed.

    Looks like it may be the 860 ?  if so the heater is 'direct to water' rather than an immersion type, hence all the extra earthing, and you cannot have an RCD.
     

    Mike.

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