Hair Salon Backwash shower unit.

[weston29]

Evening Chaps,

Been asked to look at a job for a customer in a hair salon. Wants a back wash unit fitting in the rear of the shop, cable run is easy enough and the consumer unit would accomodate it with a spare way being facilitated (RCD protected unit). Never done one before and was wondering if anyone knows if these units are purpose built or is it fit a standard domestic shower??? With it being in a salon, I can see it getting hammered and shortning the life span of the unit itself and also the cable over time. Worried about voiding the warranty of a domestic shower being used in a comercial premises as well?? Any ideas??:confused5::confused5::confused5:

 

[spark 68]

What about the fact I can't inspect or test the circuit. Can't access the socket outlets, you can't even unplug the plug top, even if you wanted to. Can't get R1+R2 (unless calculated), IR would have to be LN to earth.. Being as you can't disconnect the load

LIM

 

[guinnessgixer]

I do all the repairs in a local hairdressers, used to constantly go to burnt out isolators when wiring was on 6mm t&e, as the showers are on constantly, upgraded her to 10mm and had no probs, also used to change the showers a lot until I fit the new heatstore digital from cef ltd, it flushes the heat exchanger out with cold water everytime it turns off, the problem being with normal showers, it has hot water in the heat exchanger when you turn it off, in a domestic situation this is not a problem as it cools, but in a salon its turned back on within mins and trips the thermal stat as the water can be heated to nearly boiling point! so make sure you fit a shower that flushes itself!

 

[Stroppy]

At home I always leave my shower on cold for a bit, not for the sake of the heat exchanger, just to use all the hot water because of tight-fistedness!

 

[TPES]

So no one see's having no local isolation for an appliance a problem??

I must be on my own on this one.. So if this was a kitchen and there were no way to isolate any of the appliances (apart from going to switch the MCB) then would this be ok?? You would just give it a C3?

 

[Guest55]

pretty much , yes.
my interpretation is that isolation only needs to be local if the equipment can cause harm from its operation , such as a conveyor belt , or hydraulic press , etc ,etc.
and bs7671 allows mcbs to be used as isolation.
just because every tom , dick and harry likes to fill their kitchen with pointless appliance switches doesnt mean the regs actually insist on it.
;-)