Last seen: Feb 9, 2025
@jamespa there is indeed a large noisy water pump placed after the buffer tank that circulates the water through the ufh and the fan coils. However fl...
@jamespa i will try to have a reading as near to the hp as possible. So its possible that hot water enters the tank and is mixed with colder water tha...
Another thing i noticed is the flow temp at the manifolds. While the heatpump shows a reading of lets say 35 out and 32 in, the temp reading at the ma...
@Jamespa There is a "minimum off" and "minimum on" setting. What do you think i should set the values at?
There is a "nightshift" mode with which you can set the hp to operate at reduced fixed capacity (lowest setting is 40%) for a period. If i set it to w...
@jamespa i'm using an app named hi-kumo, which has no monitoring tools, only basic settings. There is an updated controller, released recently by Hita...
@jamespa i was able to watch a 20 minute operation. In a 12c outside temp, the heat pump cycled off 2 times for 3 minutes at a time. When it cycled on...
@jamespa only able to measure delta t on primary circuit. If anyone with knowledge on hitachi heatpumps can suggest a way to see number of cycles, it ...
@judith i can't hear the heatpump but i can hear the external waterpump. Maybe i can try increasing the flow temp, reducing the flow rate manually thr...
House is a construction of 2020 with xps insulation and double glazed windows. No clue on sizing. It was decided by the engineers during construction ...
Hey JamesPa thanks for the reply. The reason for my post is my observation of the low dt and my concerns on the stress that the system undergoes. I ha...
Latest Posts
-
RE: Help me keep the faith with my air source heat pump installation
@jamespa the flexis have been in a horizontal position ...
By AdamK , 6 hours ago
-
From the consumer's viewpoint, he's still going to cons...
By Transparent , 6 hours ago
-
RE: IVT Greenline high pressure switch and electrical cassette errors
Hi, thanks for the reply. The air is from the domestic ...
By Get , 6 hours ago
-
RE: Testing new controls/monitoring for Midea Clone ASHP
Perhaps they didn't significantly rewrite the algorithm...
By JamesPa , 7 hours ago
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@mike-patrick maybe pickup this ChatGPT conversation an...
By Tim441 , 9 hours ago
-
RE: How can I programme a setback for my Samsung Gen6 8kW heat pump?
Yes, and probably also Adia although the latter has a m...
By JamesPa , 9 hours ago
-
@editor I am all in favour of provocati...
By GrahamF , 13 hours ago
-
@editor lol. I wish. They told me to switch everything ...
By bontwoody , 14 hours ago
-
RE: How to Understand Wiring Up a Heat Pump
Morning, On top of what everyone else I would deffo loo...
By Grantmethestrength , 19 hours ago
-
RE: Sizing a heat pump: Save me from my headache
Got the results back from the one we’re ...
By Mikeatthezoo , 1 day ago
-
RE: Renewables & Heat Pumps in the News
Thanks Lucia. I'll set aside some time to go through th...
By Transparent , 2 days ago
-
RE: Do I just go with the lowest quote for my heat pump?
Seems to be settling better now I'll leave it alone
By Jancold , 3 days ago
-
RE: Bosch CS5800i 5kW - Experience So Far
We do like the exhaust air heat pump as a centralised M...
By Steelbadger , 3 days ago
-
RE: Solar Thermal DHW and ASHP
@kenbone how is your battery holding up Ken? Still goin...
By Mars , 3 days ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Old Samsung R410a unit 9kw, modbused controlled, let Ha...
By KenBone , 3 days ago
-
RE: Replacement Inverter for old FIT system
@bontwoody I have a single string 3kW solar AC inverter...
By Old_Scientist , 3 days ago
-
Octopus removed our gas meter for free a couple of year...
By robl , 3 days ago
