Advice on commissioning ASHP - UFH system

[lenny]

Hi
when commissioning a Air/water heat pump for UFH via an accumulation tank on a large system (200m2) Is it best to start with a low flow temp to the UFH then gradually increase the temperature. If this is correct ?. What temperature should be introduced first? At what temperature should it be increased to? How often should it be increased?

The system is calculated on a flow temperature of 40 degrees , , the problem I've had is setting the flow temperature at 40 degrees , this completely robbed the hot water from the tank due to the low return temperature from the UFH, then the ASHP seems to struggle to keep up with the demand.

Hope this makes sense and any comments and advice would be appreciated.

Len

 

[chris watkins]

I can rent u a trailer with 400kw of heat 100ft of 4" hoses and a twin head pump? if any good?

He wants to heat the house Ermi, not bl**dy cook that turkey. LOL

 

[Nostrum]

Or just zone off one side of the house and hope the heat pump can cope with the other half. Maybe bypass the store as well as the UFH will need to be on 24/7 anyway.

 

[Worcester]

Or just zone off one side of the house and hope the heat pump can cope with the other half. Maybe bypass the store as well as the UFH will need to be on 24/7 anyway.

I remember as kids when we had 't scrape ice off ta ba'room winda's ....do em good Nowt a couple of jumpers and a good log fire can't cure (and a hot mug of cocoa) :xmas::carolers: