Heat Curve Settings

jarvis_c82

Hi,

I've got a Air to Water heat pump system installed in my house. However, the plumber / installers never gave me any real guidance on how to use the system and the information from the manufacturer is not the greatest.

I've tried to get some info from the internet but not getting much.

My question is, in our current type of weather, what level should the upper heat temp level, line water temp and actual heating temp for the underfloor heating?

Thank you in advance if anybody can point me in the right direction as just seem to be banging my head against a wall at the moment.

freddyuk

Name and shame them if it is true? Possibly not here but it is a disgrace that an installer can leave a customer without the required operating manual and details on guarantees and servicing options. It is basic stuff for any half decent installer. Contact the manufacturer and check if the installer is registered/qualified to install the system. A decent manufacturer will not want their kit bodged by a fit it and scarper merchant.
If your system was not commissioned correctly before they ran off then it will never be at optimum performance.
You can post details of the system here which may help?

jarvis_c82

The unit that was installed was a Danfoss DHP-AQ. I think I got caught inbetween two places as the installer got a good job abroad that he couldn't turn down when he completed the installation of the job. He gave the necessary information to my contractor of the build of my house.

I've been in contact with the suppliers of the unit at the moment and I'm trying to get them to perform a service so that I can quiz them but I'm hopeful to have someone with us in the next week. Just want to have a good understanding myself before I start to quiz them.

freddyuk

Who did you pay to install the unit? They are responsible ultimately.

http://heating.danfoss.com/PCMPDF/Df_DHP-AQ_CG_%20VIGFH202_EN_X018676_B1__.pdf

Note the warranty which may have been compromised.

Danfoss A/S is not liable or bound by warranty if these instructions are not adhered to
during installation or service

The operating manual has to be left with the consumer (after correct commissioning)

jarvis_c82

Thanks Freddy for the reply

The installer who fitted the unit and supplier did the relevant checks on the unit.

I'm just looking for some guidance on the actual settings as there is little to no information for it. I've tried to contract my installer but he's now working abroad and is not much use. I've been in contact with the supplier and should be seeing them soon but as stated, I just want to have some knowledge before I talk to them in person.

freddyuk

Go to my link if that is your unit? Then call Danfoss with any questions you need to ask. Once you have been through the menus you should have a better understanding of the unit and how it is /should be set up?

jarvis_c82

Thanks Freddy

Will have another look through it and any other queries will get in contact with Danfoss.

blast06

Having had a Danfoss system fitted ~18 months ago, i must say i am shocked that the supplier has allowed this to happen. I couldn't fault them from my dealings.
Anyway, my experience .... i have a (just about) A2 BER rating and leave the heat curve at 30 degrees. There shouldn't be a need to ever change it, i.e.: the heat curve will rise and fall based on the reading from your outdoor thermostat. You actually need to know very little more than that .... e.g.: i turned my system on in early October and haven't touched it since (& don't have any thermostats in the house)