Correct connection of electrics for combi boiler

[squeekykilt]

Hi,

I wanted to pick peoples brains on the correct method for supplying power to a combi boiler. A friend had his boiler replaced a while back and the plumbers wired a three pin plug to the end of the flex leading to the boiler and plugged it into the nearest socket. That struck us both as odd - surely a fixed appliance should be connected permanently via a FCU?

I am getting a combi fitted in a few weeks so I wanted to clarify this so I knew what was happening in case my installer does the same thing.

Thanks.

 

[ricicle]

Although manufacturers will tell you to do the FCU way there is nothing wrong with the plug in way IMHO (apart from the loss of a socket outlet)
BS7671 (The Wiring Regulations) do say that equipment must be installed according to manufacturers instructions.

 

[Taylortwocities]

BS7671 does include a plug and socket as a valid isolation method.

Most boiler manufacturers state that a double pole isolator must be used - a plug & socket would comply with that description.
Personally, I would fit an FCU as it looks better but that might bring you into Part P land if the boiler is in a kitchen eg

 

[maltaron]

I changed from FCU to plug & socket on my boiler to make it easy to connect to an invertor when the power fails! (PS In the sticks this occurs often)