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Johnson Controls International is an Irish-domiciled multinational conglomerate headquartered in Cork, Ireland, that produces fire, HVAC, and security equipment for buildings. As of mid-2019, it employed 105,000 people in around 2,000 locations across six continents. As of 2017, it was listed as 389th in the Fortune Global 500; in 2017, it became ineligible for the Fortune 500, as it was headquartered outside the U.S.The company was formed via the merger of American company Johnson Controls with Tyco International, announced on 25 January 2016. The merger led to the avoidance of taxation on foreign market operations and a financial windfall for the CEO of Johnson Controls at that time, Alex Molinaroli.

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  1. M

    Tado smart controls....

    Been asked to install this control and have not done so before. Looking on their website it says you should put a smart trv in the room with the smart room stat. It says the individual heads and turn the boiler on and off so why would I need a room stat if these heads? Do like the sound of...
  2. C

    Replace Manual Potentiometers on Boiler Controls - GSR?

    Hi all, I have a combination boiler that uses two manual pots for controlling HW and CH temps. Was looking to replace these with digital pots that I control externally along with the timing function. I have no issue whatsoever replacing these with the correct functional and safety spec...
  3. A

    Replacing Eph T27 Controls with Hive or similar

    Hi i have a customer who has a 15i system boiler in the loft, there is a receiver up there also. downstairs they have a an eph t27 progrmmer on the wall and a wireless stat. They want Hive or similar fitted that they can control from their phone, can anyone recommend what they would fit. It...
  4. A

    Replacing EPH t27 controls with Hive or similar

    Hi i have a customer who has a 15i system boiler in the loft, there is a receiver up there also. downstairs they have a an eph t27 progrmmer on the wall and a wireless stat. They want Hive or similar fitted that they can control from their phone, can anyone recommend what they would fit. It...
  5. L

    New boiler installation, pipe size question and controls please

    Hi, About to complete on a 3 bedroom semi detached house, upstairs downstairs. Current combi is upstairs in the bathroom and the intention is to buy a new Baxi HE33 and put it downstairs just off the kitchen so nearly directly below the old current boiler. Total number of radiators for the...
  6. H

    Church install controls help!

    I have an install in a church, all fairly straight forward stuff however the client isnt keen on a proper bms system and VT circuits... Whats the worst case scenario if I dont fit vt circuits and a full bms system? I get the impression they simply cant afford the additional cost. They are...
  7. Scott_D

    Worcester controls cover plate

    Is anyone fitting a Worcester boiler with worcester controls? I need the blanking plate that gets removed to fit a on 25SI compact, cant seem to find it as a spare part. I also broke the green clips (or the last person broke them and bodges it bac in place):mad:
  8. A

    Vsmart controls ebus line

    Hi everyone, Fitting a combi tomorrow and have gone for the vsmart controls (vaillant) Having a nosy through the instructions now so I look like a pro on the job in front of the customer. I have a mains adapter for the 'communication unit' but it is saying about connecting ebus line from...
  9. M

    Wireless controls to upgrade gravity system

    Morning all. I am looking to either convert a Potterton performer to a fully pumped system or replace the boiler. Either way I am going to need wireless controls to get to the cylinder thermostat. Can anyone recommend any controls they use or is it just go with honeywell. And what system...
  10. D

    Best Boiler Plus Compliant controls For A landlord That Doesn't Want To spend Any money?

    As above, got to fit a combi for a landlord, he's supplying the boiler so it will probably be the cheapest he can find! So what's the simplest and most cost effective way of complying with the new regs?
  11. F

    Noisy UFH system. better controls?

    I have just had an extension built and put in a 30m2 underfloor heating kit in the extension. it's run from a baxi combi, flow is split using zone valves so both the radiators and ufh can work independantly. the problem i've found is the system is quite noisy. I've been bleeding it at the...
  12. Tommo25

    Smart controls new regs

    What smart controls are guys going to fit to comply with the new regs starting from April. Is the there a relatively simple one for say elderly people who just want basic controls? I fit viessmann and the RF programmer they sell is so simple perfect for people who just want ‘on/off’ Thanks
  13. R

    Boiler controls - compatibility

    Hi all, I’ve just moved into a house with a boiler likely as old as me! For the time being it is staying but I need a better control unit - a digital one which i can time the heating and hot water separately but which also has a boost function for an hour or so when needed? How do I know what...
  14. B

    Combi boiler controls

    Hi, Do I need a 2 channel programmer for my grant vortex pro 26 combi boiler? My plumber says I do but other say I don’t as combi boilers do not require hot water controls. Any advice? Thanks.
  15. K

    Protecting the boiler with a Relay

    Hi I am fitting a Heat only boiler that just serves the radiator circuit, the boiler has its own dedicated block terminal connector on the PCB but I cannot connect the pump to it as we normally do, the pump is a commercial type and Worcester Bosch have stated it will damage the PCB because of...
  16. Bogart

    Drayton Wiser controls

    Anyone have experience of this setup. Im looking to get a smart arrangement and this looks good and not badly priced and like some others works with Amazon Alexa?
  17. J

    Upgrade Heating controls to Honeywell Evohome

    I have an existing heating system and am looking for a heating engineer to upgrade my system to use Honey Evohome controls. I have 4 radiators/towel rails that do not have TRVs and these need to be replaced. There are 13 radiators in all (including those mentioned). There is an un-vented hot...
  18. Savva

    Can you diagnose faults with Heating and HW controls?

    I need someone in South London who can diagnose faults with controls and associated boiler parts like pumps etc. You should be able to diagnose, 2port valve, 3port valve, 2 channel programmer, room thermostats, cylinder thermostats, etc. Work available on a regular basis, invoices paid same day.
  19. J

    Question re: Vaillant Combi (ecoTec 835 Green iQ) w/ vSmart Controls

    First post, please excuse my lack of technical knowledge and the length of my post... I recently had a plumber replace a c.30 year-old Potterton Netaheat Electronic 16/22 system boiler with a Vaillant ecoTec 835 Green iQ. The boiler is for a secondary heating system at my property and it...
  20. P

    Heatline capriz 24 controls

    Hi guys. Customer has supplied a heatline capriz2 24 combi. I'm wondering if anyone can tell me if volt free controls can be fitted and where they would be wired to. The manual isn't very clear with regards to controls and I've tried ringing their technical helpline to be told that they dont...
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