UPDATED: Air Source Heat Pumps/Air Con - Full Info & Guide, is it cheaper to run than mains gas?

lovesgshp

My apologies, I misread post 1545, which was litres and not degrees!!

lovesgshp

Can you give me the return temp after the morning reduction tomorrow, or is it set to all day operation for the weekend? Allow say 4 hrs for the reading.

lovesgshp

Just going back to the earlier post, that I misread re C/Ltrs. Can you turn the circulating pump up to increase the flow?

richardc1983

lovesgshp wrote: »

Can you give me the return temp after the morning reduction tomorrow, or is it set to all day operation for the weekend? Allow say 4 hrs for the reading.

Weekend operation is same as weekday. It's off until 5pm. The pumps are already on the Max flow. Manufacturer has said wrong pumps have been used as not providing a high enough flow. The return flow after 4 hours will have dropped to whatever the temp is in the garage as circulating pumps will turn off after 10 mins.

Smaf_2

Hi

I'm hoping you can help.

I returned from a trip away I reduced the temperature of my ASHP to 10 degrees for 5 days only.

I have now returned and I cannot get the temperature in the house above 11 despite it being set at 21.

Any help appreciated as house is freezing and no back up set up.

Thanks

richardc1983

Smaf wrote: »

Hi

I'm hoping you can help.

I returned from a trip away I reduced the temperature of my ASHP to 10 degrees for 5 days only.

I have now returned and I cannot get the temperature in the house above 11 despite it being set at 21.

Any help appreciated as house is freezing and no back up set up.

Thanks

That's becsuse of the lower flow temp., tell us make of system and if it's rads or underfloor etc. Heat pump should be left at night set back unless away for months. Your gonna have to adjust the flow temp higher to let the house recover & or use supplementary heaters to help it.

Smaf_2

richardc1983 wrote: »

That's becsuse of the lower flow temp., tell us make of system and if it's rads or underfloor etc. Heat pump should be left at night set back unless away for months. Your gonna have to adjust the flow temp higher to let the house recover & or use supplementary heaters to help it.

It is a Daikin system and uses radiators.

How do I temporarily alter the flow?

richardc1983

Smaf wrote: »

It is a Daikin system and uses radiators.

How do I temporarily alter the flow?

On the controller there maybe an up down buttons that will increase or decrease the flow temp by 5c in 1c increments usually When you go away for a week or so it's best to leave it on set back rather than 10c as they are efficient when just left running, you will eventually use more electricity to get it back upto 21c than If you had left it at the set back overnight temp as the whole house has to get back upto 21c. Help the system by using other forms of heating if you have them.

Smaf_2

So I should increase my LWT temporarily?

lovesgshp

Does the Daiken have a holiday function?