ASHP - reverse valve settings

Air source, ground source and associated systems for heating homes
Yuff
Posts: 375
Joined: Sat Dec 31, 2022 1:18 pm
Location: East Midlands

ASHP - reverse valve settings

#1

Post by Yuff »

Does anyone know how I can get access to the settings to operate the reverse valve on our Mitsubishi Ecodan Heat pumps.
I gather from previous comments, Mitsubishi don’t allow the reverse valve function in the UK but do allow the feature in Europe and the rest of the world.
The lowest temp I can set on our pumps is 25c and I would like to set it lower.
Mitsubishi Ecodan
ASHP 8.5kW x 2
12 x 460w Solar panels
9.5kWh GivEnergy
Batteries x 2
EVs x 3 170 kWh Batteries
Ripple 5.8 kW PV
Swwils
Posts: 530
Joined: Sat Feb 26, 2022 12:58 pm

Re: ASHP - reverse valve settings

#2

Post by Swwils »

Dip ft5.

Will invalidate your RHI and the status is phoned home
Yuff
Posts: 375
Joined: Sat Dec 31, 2022 1:18 pm
Location: East Midlands

Re: ASHP - reverse valve settings

#3

Post by Yuff »

Thanks swwills.
What’s the RHI?|
Status phoned home 🤷🏻‍♂️
Mitsubishi Ecodan
ASHP 8.5kW x 2
12 x 460w Solar panels
9.5kWh GivEnergy
Batteries x 2
EVs x 3 170 kWh Batteries
Ripple 5.8 kW PV
Mr Gus
Posts: 3813
Joined: Sun Jun 13, 2021 9:42 pm
Location: Tofu eaters paradise (harrumph)

Re: ASHP - reverse valve settings

#4

Post by Mr Gus »

1906 ripplewatts @wind Turb-ine-erry
It's the wifes Tesla 3 (she lets me wash it)
Leaf 24
Celotex type insulation stuffed most places
Skip diver to the gentry
Austroflamm WBS
A finger of solar + shed full more
User avatar
nowty
Posts: 5114
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: ASHP - reverse valve settings

#5

Post by nowty »

Does this help ?,

Apparently there is a DIP Switch to turn on cooling function.

Only if Cooling operation is active (Dip-SW 2-4 ON).
http://www.mitsubishitech.co.uk/Data/Ec ... -E_IM1.pdf
15.2kW PV > 100MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 18MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 490 m3
Yuff
Posts: 375
Joined: Sat Dec 31, 2022 1:18 pm
Location: East Midlands

Re: ASHP - reverse valve settings

#6

Post by Yuff »

Thanks guys, very helpful
Mitsubishi Ecodan
ASHP 8.5kW x 2
12 x 460w Solar panels
9.5kWh GivEnergy
Batteries x 2
EVs x 3 170 kWh Batteries
Ripple 5.8 kW PV
Mr Gus
Posts: 3813
Joined: Sun Jun 13, 2021 9:42 pm
Location: Tofu eaters paradise (harrumph)

Re: ASHP - reverse valve settings

#7

Post by Mr Gus »

Could not gauge the emoji (tiny) guessing it's a shrug?

Therefore "phone home" will be a notification to mitsubishi I guess, along with any over air updates, & general operational status data that is sent onward for scrutiny by the manuf!?
1906 ripplewatts @wind Turb-ine-erry
It's the wifes Tesla 3 (she lets me wash it)
Leaf 24
Celotex type insulation stuffed most places
Skip diver to the gentry
Austroflamm WBS
A finger of solar + shed full more
Yuff
Posts: 375
Joined: Sat Dec 31, 2022 1:18 pm
Location: East Midlands

Re: ASHP - reverse valve settings

#8

Post by Yuff »

nowty wrote: Sat Aug 12, 2023 6:45 pm Does this help ?,

Apparently there is a DIP Switch to turn on cooling function.

Only if Cooling operation is active (Dip-SW 2-4 ON).
http://www.mitsubishitech.co.uk/Data/Ec ... -E_IM1.pdf
Just got back from abroad and wondering if it is worth trying to set this up now or next summer, cant see many 25c + days left if this summer.
My solar isn’t even getting close to April’s generation and I assume that’s not normal.
Mitsubishi Ecodan
ASHP 8.5kW x 2
12 x 460w Solar panels
9.5kWh GivEnergy
Batteries x 2
EVs x 3 170 kWh Batteries
Ripple 5.8 kW PV
User avatar
Joeboy
Posts: 7037
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: ASHP - reverse valve settings

#9

Post by Joeboy »

Yuff wrote: Fri Aug 18, 2023 8:11 am
nowty wrote: Sat Aug 12, 2023 6:45 pm Does this help ?,

Apparently there is a DIP Switch to turn on cooling function.

Only if Cooling operation is active (Dip-SW 2-4 ON).
http://www.mitsubishitech.co.uk/Data/Ec ... -E_IM1.pdf
Just got back from abroad and wondering if it is worth trying to set this up now or next summer, cant see many 25c + days left if this summer.
My solar isn’t even getting close to April’s generation and I assume that’s not normal.
That's normal.May and maybe June are the peak months.

Image
16.2kW PV SE, VI & DW
Ripple 7kW WT & Gen to date 11MWh
28kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Stig
Posts: 149
Joined: Tue Jun 15, 2021 9:08 am

Re: ASHP - reverse valve settings

#10

Post by Stig »

July wasn't 'normal' for me, only 80% of typical generation for the month and only slightly above April's generation. On average over the last 10 years July is almost exactly the same as May for me but not this summer. :(
Post Reply