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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4403
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Reply
RE: 17kW Grant Aerona 3 - advice needed for pre-commissioning struggles

Without looking at the Grant manual, I assume that TM1 is the cold end setting for the weather compensation (WC). Whilst lowering this setting may sav...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kW Grant Aerona 3 - advice needed for pre-commissioning struggles

When you state 'currently running with 40 degrees max', have you set 40C as the maximum permitted LWT?

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kW Grant Aerona 3 - advice needed for pre-commissioning struggles

@denevil What are the heat loss calculations and size of your home?

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

I don't think that the data is actually encrypted, more likely coded then decoded. You need to be aware that the serial data transmission is actuall...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan & Raspberry Pi automations

@kev-m Hi Kev, What is the setting of the Interval Timer?

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is running out of hot water

Switch off the immersion heater at the wall switch, then using a small spanner remove the nut holding the cover in place. Underneath you should find t...

4 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Airwell/Midea unit not heating hot water after adjusting weather compensation

I would suggest that you check to see if your system is set for CH priority rather than DHW priority. If so, set it to DHW priority and schedule it fo...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ashp and pv diverter working together

Electrical power diverters are excellent devices, we have had one connected to our system for quite a number of years. Because they use electronic c...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP is running out of hot water

Hi Curly, Do you know where the cable supplying the on - off switch for the immersion heater is supplied from? Can you provide a closeup photo of yo...

4 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Heat pump delta T too low - 2c

The quantity of heat energy produced by a heat pump is given by the formula:- Q = mcDT Where Q = Heat Energy, m = Mass, c = Specific Heat Capacity...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Latest NIBE model has known defect and no solution

I'm afraid if it was me, I would be making it abundantly clear that this is not acceptable, since you have now been without adequate heating for 6 wee...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan & Raspberry Pi automations

I would suggest setting the Interval Timer to 60 minutes to help reduce the cycling.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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