DeLonghi Bran 0041MH air source heat pump
Hello,
We have a De Longhi Bran 0041MH ASHP and live in a highly insulated house in Shropshire.
Whilst the unit is excellent I would not reccomend purchasing one due to the total lack of Service Engineers for this Brand.
We have found that Service Engineers are biased towards the mechanics of the machine and have little real understanding of the programing of the controller other than what the manufacturer writes in the manual.
The program need substantial tweaking ,preferably done in Winter whilst the machine is operating near it's lowest temperature limits, for it to achieve the most economical operation.
Whilst we now have a unit that is operating at it's optimum there is still a problem in that whislt in standby mode it is consuming some 0.44Kw/hr which with the current astronomical cost of electricity equates to ...wait for it...£1392.
If anyone knows how to reduce stanby consumption I would be most obliged to hear from them.
Posted by: @01286pHello,
We have a De Longhi Bran 0041MH ASHP and live in a highly insulated house in Shropshire.
Whilst the unit is excellent I would not reccomend purchasing one due to the total lack of Service Engineers for this Brand.
We have found that Service Engineers are biased towards the mechanics of the machine and have little real understanding of the programing of the controller other than what the manufacturer writes in the manual.
The program need substantial tweaking ,preferably done in Winter whilst the machine is operating near it's lowest temperature limits, for it to achieve the most economical operation.
Whilst we now have a unit that is operating at it's optimum there is still a problem in that whislt in standby mode it is consuming some 0.44Kw/hr which with the current astronomical cost of electricity equates to ...wait for it...£1392.
If anyone knows how to reduce stanby consumption I would be most obliged to hear from them.
Looking at the manual for your particular model, it would appear that the water pump has a maximum power demand of 0.42kW. I would suggest that you check the controller settings to see if the pump is set for continuous circulation.
Thank you for that Derek, do you have any idea where in the Controller program / ladder I will find the setting for the pump and if so what should it be.
Thank you
Posted by: @01286pThank you for that Derek, do you have any idea where in the Controller program / ladder I will find the setting for the pump and if so what should it be.
Thank you
I'm afraid that I am not familiar with your controller. Having had a quick look through the manual I cannot see anything obvious. I know that on some systems the water pump can be kept running to circulate the water around the system so that its temperature can be monitored. There is often the option to run the water pump periodically rather than continuously for this purpose.
I would suggest that, if possible, you monitor the energy usage when the heat pump is in standby, to see if it is a continuous 0.44kW, or if it is a higher value being switched on and off intermittently. Check to see if the energy consumption varies with changes in outside air temperature. Also see if the controller display gives any indication as to what may be operating.
@01286p if it helps…. we noticed our HP had a defrost control which was set to act at a ridiculous 15degC. So we asked our call centre to assist in resetting it to a lower temperature. This stopped the circulating pump from working all night. (Of course, that might not be your situation)
- 26 Forums
- 2,242 Topics
- 49.9 K Posts
- 399 Online
- 5,903 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Midea ASHP – how to set weather compensation
@cathoderay I've attached a sample of the data I have (...
By pash44pump , 1 hour ago
-
RE: Faulty Clivet heat pump out of the box
We would never win these projects as we spend 1 whole d...
By ASHP-BOBBA , 1 hour ago
-
RE: Ecodan Melcloud Temperature Change
@gruff2001 - if set on WC, the app is only communicatin...
By ASHP-BOBBA , 2 hours ago
-
RE: End of Summer Time Reminder to Ecodan owners
@morgan did the system time change last night? if so y...
By downfield , 4 hours ago
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@toodles indeed. the question of proof will only get ...
By Tim441 , 6 hours ago
-
RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
@jords were you not given a copy of the full heat loss ...
By Chas Barry , 8 hours ago
-
@eliuccio Sometimes changes in electrical regs only app...
By Toodles , 8 hours ago
-
RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
I signed up here due to finding this question via a Goo...
By Unsure , 8 hours ago
-
RE: Mitsu PAR-WT60 Wireless Controller
Aslo, subject to FTC version, Your thermostat will cont...
By ASHP-BOBBA , 11 hours ago
-
@bontwoody Thanks for the info. Quite a spread of value...
By springswood , 12 hours ago
-
RE: Daikin Octopus installation update - I saw my first defrost. 😍😂
Thing is it is one of those intermittent things. Yes I ...
By Jancold , 12 hours ago
-
@transparent Yes to questions 1 to 3. Also, yes to the...
By Morgan , 12 hours ago
-
RE: Octopus Cosy Heat Pump Owners & Discussion Thread
OK thats cheap, the commercial price seems to be £400 p...
By JamesPa , 1 day ago
-
RE: Solar inverters - where does the energy go when clipping?
I think I must query the sources on which Greenmatch ha...
By Transparent , 2 days ago
-
RE: Replacing knackered oil boiler with Samsung ASHP - Perthshire
This is how I run my Samsung 12kW ASHP with a 3rd party...
By Old_Scientist , 2 days ago
-
RE: Testing new controls/monitoring for Midea Clone ASHP
@cathoderay thanks- yes will keep an eye out for the de...
By benson , 2 days ago
-
RE: Renewables & Heat Pumps in the News
Hoping so as well! I am no specialist. The language use...
By Batpred , 2 days ago
-
RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@old_scientist Just to say that during our retrofit, we...
By Toodles , 2 days ago
-
RE: Daikin Altherma 3M ASHP and British Gas Hive Home
We have a Daikin EDLA08 8kW monobloc (DHW is handled se...
By Toodles , 2 days ago



