ashp

Hi All, I am currently installing a Vaillant AroTherm Plus 7kw Heat pump with a custom built cylinder. Can anyone tell me where I connect the immersion heater??? I have had a look at Vaillants schematics and it’s not clear to me? I am also a little unsure about the secondary circulation pump...

Hi All, I was wondering if someone can explain to me how you wire up a Vaillant AroTherm Plus with a SensoNET 921 and sensoComfort 720F/2. I just purchased an accessory for the SensoNET 921 that is used instead of a mains plug adapter. (See image below) As referred to in the SensoNet manual...

I have a very tight install for a new retrofit Heat Pump and was wondering if I can have a Spirotech mb3 filter between my unvented cylinder and the T of to my expansion vessel on the return for my heating circuit or is it better to put it on the flow???

Hi Everyone, I have a question with regards to a specific requirement I have for an electric 3 way diverter 28mm valve on an ASHP installation? As far as I know most 3 way valves are configured so the flow comes into the bottom of the 3 way valve (Inlet: C) and then the water either flows out...

Hi All, Can someone help me identificere What size DN pipe diameter the below stainless steel flex hose is? I dont usually work with this type of flex hose and due to the corrigation i am not sure What size annular fitting I need? Is it based on the internal bore size of the external...

Hi Everyone, I was wondering if anyone knows of a way to shorten a flexible stainless steel flex hose for a Vaillant ASHP? I have previously purchased flex connection hoses from Vaillant that could be shortened using a circlip, but it would appear that they have changed their manufacturing...

Hi there, I'm hoping for some advice: We have an ASHP fitted about 2 years ago and for the past year(ish) we have had problems with the water coming out tepid at best, for some outlets but others have no problems at all. So en-suite shower has never had a problem but the taps are v...

Hi All, I am curious to hear if anyone knows if the Vaillant VR33 Module that can be used to convert Vaillant Boilers to support OpenTherm also works together with the Vaillant AroTherm ASHP range? As far as I can understand Vaillant uses a very old protocol (eBus) for communications between...

I have a Samsung Gen6 8KW air source heat pump. It works very well, but I noticed that my flow rate is between 28 and 31 l/m and I wonder if this is too high? The circulating pump is a Grundfos UPS2 (8m head I think) on setting 3 which I understand is suitable for larger heat pumps than mine. Is...

Hi All, I'm currently pulling the components together for new heating and DHW plant in my property. I'm proposing a Bivalent system for various reason, Gas boiler and ASHP combo. My question is on the DHW generation. I currently have a PHX and DHW cylinder (no coil) to get the most from the...

Hello, I'm in the process of getting a new electrical supply from UK Power Networks for my 4-bed, ~200sq.m barn conversion (not started yet!) and they're asking for a kVA rating. I'm planning to use an air source heat pump (maybe 12kW - 16kW output) and probably also one car charging point...

I have air source heat pump (ashp) system, model Yutaki S . Recently I replaced the wired thermostat (a relay one) with a Tado wired thermostat. I turned the ashp system off at the kill switch. Swappef the thermostat, and it wouldn't turn back on. I have check the switch board and the circuit...

Hi, I'm about to order a 12kw Air Source Heat Pump for my new home. For various reasons, I already have an electric boiler and a 2000 litre Akvatherm heat bank. On approaching a Daikin installer, they said I need a mains pressure buffer tank, otherwise Daikin won't support the warranty. I...

Hi, my son has an air source heat pump (Vaillant will attend for £300!), connected to a Glow Worm SystemPro. A Fault is showing on the SystemPro - Code 36: Communication with the outdoor sensor is out. Any ideas out there please? Replace sensor??? They are low waged and we are hopeful to avoid...