Electrician asked me Q re heat pump

[CalvinHobbes]

Hi we are getting a grant aerona and the electrician asked when he wires it up can we run it for a few days before it's commissioned by the Grant person?

Does that sound ok?

[JohnMo]

If you don't need to run I wouldn't, if your wanting or needing heat then run it. 

[sharpener]

On 12/12/2024 at 22:42, CalvinHobbes said:

Hi we are getting a grant aerona and the electrician asked when he wires it up can we run it for a few days before it's commissioned by the Grant person?

Does that sound ok?

 

Depends on the contractual arrangements between the three parties.

 

If you run it and it provides heat you are effectively commissioning it. The Grant guy may not be best pleased particularly if you don't do something that needs to be done in sequence, or fail to spot something which needs to be rectified before it causes a worse issue.

 

I was very annoyed when before I got there the plumbers fired up a new type of boiler which I had specified but they had not installed previously. And when I was a laser systems service manager I could instantly tell if someone had been on site before me and tried to make things "better".

In the extreme you could end up voiding the warranty.

Edited December 15 by sharpener

[CalvinHobbes]

Fair point will find out from Grant person. Cheers.

[Huckleberrys]

Or he just wants to make sure it is working to save any problems when the grant engineer comes! As a plumber I would always fire up to make sure working ok before anybody else comes to look.

[sharpener]

Fair enough, it's reasonable the electrician should want to check his work before he leaves. At a guess if he turns on the breaker the HP should come on in standby mode and the display should light up, that might be sufficient.

 

Grant HPs are at the simpler end of the range of control options and are often wired up in a standard S-plan config but even so he will have to run it in heating mode to check the thermostat wiring and zone valve functions. Grant person may be happy for him to do this before he visits to configure heating curve etc.

 

Fortunately my spark was an employee of the installers (they were actually a firm of electricians who had branched out by taking on plumbers) so didn't face this issue. He was very good, wiring neat and mains and low voltage all segregated, integration with legacy controls and battery inverter all worked. First time except for one missing perm live connection to UFH controls quickly rectified.