2 x Mitsubishi Zubadan 14kW ASHPs in 400sqm house
Hi Everyone
I'm Alan and new to the forum.
I live with my wife in largish detached house in the Chilterns ( 400m2 ). House mixture of old solid walls ( 15% ) and modern cavity insulated. Around 200mm in the lofts. Double Glazed throughout.
We have
2 x Mitsu Zubadan 14Kw ASHPs controlled by an Ice Energy bastardisation of 2 FTC2s in their own bespoke step controller set up.
100l buffer tank in loft.
300l pressure tank in airing cupboard MacDonald Engineers.
Installed in 2011.
GF mostly UFH 4 zones controlled by a heat miser set up.
FF rads controlled by TRVs and a conventional programmable thermostat.
Looking to add PV plus battery this year and to find any way I can to cut our consumption.
Current predicted annual total elec usage is around 40000 Kwh !! No idea what usage is for the heat pumps alone.
Outdoor pool heated for 3 months a year by a 12kw Calorex ASHP. Pool highly insulated sides and bottom. Thermal cover on top.Works very well for June July Aug.
Ice Energy were poorly run company it seems and disappeared around 7 years ago from memory.
So, I'm struggling with my settings on the controller, to get the best our of the system.
Have upgraded all the external pipework insulation to Armorflex.
Any suggestion grateful received.
Cheers
Alan
Posted by: @alanbNo idea what usage is for the heat pumps alone.
My suggestion is to fit aShelly EM unit on your system as I have done and you can see exactly what is used by what. I have one clamp measuring the entire house usage and another specific to the ASHP.
Mitsubishi Ecodan 11.2kW ASHP
@greekgoddj Thanks for your reply.
Had a quick look at the guide on line. So, do I mount the Shelly EM near to the heat pumps and put a clamp around the cable leading to each heat pump?
Does each clamp have to be wired to the main EM unit?
Any help you can give gratefully received.
Thank you
Alan
Hi @alanb
The clamps go around the live electric feed in your fuse box that feeds the ASHP.
I used this video as a guide
Obviously take great care when doing anything electrical!
Mitsubishi Ecodan 11.2kW ASHP
- 26 Forums
- 2,255 Topics
- 50.3 K Posts
- 310 Online
- 5,918 Members
Join Us!
Podcast Picks
Latest Posts
- 
                        RE: Who has a V2G EV installation @majordennisbloodnok I stumbled upon a Google for BBC t... By AgentGeorge , 6 minutes ago 
- 
                        @toodles As we have had the topic issue resolved, we ca... By AgentGeorge , 12 minutes ago 
- 
                          RE: Are We Sleepwalking Into Another Race to the Bottom? Except Ford don’t market their Mondeo as a Porsche alte... By Majordennisbloodnok , 24 minutes ago 
- 
                          RE: Is it mad to think there should be a minimum SCOP for UK heat pump installs? @jamespa, I don’t think that’s quite right. The regulat... By Mars , 9 hours ago 
- 
                          RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus We’re really excited to be recording a landmark Homeown... By Mars , 10 hours ago 
- 
                        RE: Testing new controls/monitoring for Midea Clone ASHP Thx, but Sven did the hardware development. My role (as... By Mosibi , 10 hours ago 
- 
                        RE: Mitsubishi Ecodan R290 10kW performance Are you using Havenwise for Hot Water? I have ... By F1p , 11 hours ago 
- 
                        RE: PV Panels on roof in Conservation Area @majordennisbloodnok Fnaargh, I was thinking about try... By colinc , 11 hours ago 
- 
                        RE: Electricity price predictions @jamespa Ah, you mean MPs that have not pro... By Batpred , 12 hours ago 
- 
                        RE: Buying large amp bidirectional RCD and RCBO Exactly @transparent , this type of RCBOs are not easil... By Batpred , 13 hours ago 
- 
                          RE: Midea ASHP – how to set weather compensation @pash44pump - though I realise I am a Canute, I have an... By cathodeRay , 13 hours ago 
- 
                        RE: Grant 13kW Aerona3 - issues getting zones to temp And just when I think great they’re coming next week to... By Crimson , 15 hours ago 
- 
                          RE: Very Much Awake – Renewing the Heating Industry One Step at a Time I feel that that attitude shared by Aadil from Heat Gee... By Toodles , 16 hours ago 
- 
                        RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters and we have some of the strongest tidal flows anywhere ... By Old_Scientist , 19 hours ago 
- 
                        RE: Radiator Sizing Dilemma: Vertical vs Type 33 for Low-Temperature Heat Pump Systems This looks OK. Overall you have roughly the right amoun... By Old_Scientist , 19 hours ago 
- 
                        RE: How can I programme a setback for my Samsung Gen6 8kW heat pump? I'm not familiar with Hive thermostats/controllers, but... By Old_Scientist , 20 hours ago 
- 
                        RE: Help me keep the faith with my air source heat pump installation @jamespa mine seems changing albeit not by much, 3.21, ... By AdamK , 2 days ago 
- 
                        @majordennisbloodnok The migration hasn't started in th... By HCas , 2 days ago 
- 
                        RE: One room is colder than the rest of the house @jamespa thanks for all the advice. Just so you know, ... By AndrewJ , 2 days ago 



 
 

 
                                 
                                 
                                 
                                
