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honeywell

Honeywell International Inc. is an American publicly traded, multinational conglomerate corporation headquartered in Charlotte, North Carolina. It primarily operates in four areas of business: aerospace, building technologies, performance materials and technologies (PMT), and safety and productivity solutions (SPS).Honeywell is a Fortune 100 company, ranked 94th in 2021. The corporation in 2020 had a global workforce of approximately 103,000 employees, down from 113,000 in 2019. The current chairman and chief executive officer (CEO) is Darius Adamczyk.The corporation's current name, Honeywell International Inc., is a product of the merger of Honeywell Inc. and AlliedSignal in 1999. The corporation headquarters were consolidated with AlliedSignal's headquarters in Morristown, New Jersey; however, the combined company chose the name "Honeywell" because of the considerable brand recognition. Honeywell was a component of the Dow Jones Industrial Average index from 1999 to 2008. Prior to 1999, its corporate predecessors were included dating back to 1925, including early entrants in the computing and thermostat industries.In 2020, Honeywell rejoined the Dow Jones Industrial Average index and the following year moved its stock listing from the New York Stock Exchange to the Nasdaq.

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  1. E

    internet controls?

    Hi Every one I have a customer who has a s plan heating system, with a Honeywell wireless controller that does the heating and hot water. Now he wants one that he can control both form his phone, I have never fitted one like this are they available and what you recommend. Thanks in advance
  2. D

    Vaillant and Honeywell DT99e help

    Can't seem to get the stat to control the Vaillant pro24. Have I got this right? The boiler just runs on heating and won't switch off. I then removed the 24v link and it had the opposite effect. Wouldn't switch back on. It's a Honeywell DT90e by the way. I have a Vaillant mechanical 150 time...
  3. M

    Honeywell reliability not what it was...

    Two ST9400's, both fitted about a year ago, both with same problem - randomly will not run program on timer. Work fine in continuous mode. Wonder if they had a dodgy batch?
  4. L

    Honeywell motorised valve playing up.

    Good afternoon – I am really stuck with a diagnosis here and hope to get your help. The system has 2 Honeywell V4043H1056 motorised valves. Their outside levers are both set to “auto”. No problems at all with the Central Heating valve or the programmer (ST6400C). The issue is with the hot water...
  5. M

    thermostat with a small differential + anticipator?

    Hello, I need some advice please. The central heating in our home oscillates the house temperature too much. It's specially uncomfortable at night, waking people up when the bedrooms become too hot. I've just done some Googling and I learned about thermostats with smaller differentials (some...
  6. quality

    Honeywell

    I have changed a good few heads recently on valve only 2 & 3 years old has anyone experienced similar issues as they don't seem to be the quality / reliability they once were
  7. Robert Tyrrell

    Digital thermostat tolerances

    I've fitted a new room stat and programmer to a Y plan system and my customer is complaining that the heating is not working properly as its. Of shutting off when it reaches temperature. I have noticed that it tends to shut off about two degrees higher than the room stat is set for and I'd like...
  8. K

    Faulty Honeywell mid position valve (NEW)

    Just wondering if anyone had a new one being faulty. Would not come on for heating only hot water. White and grey live but nothing back through the Orange. Checked all connections and ok but wouldn't have it. Fitted another and up it went.
  9. U

    ideal condenser boiler and honeywell 3 slider timer

    I'm after a helpful engineer..i have moved into a house and have an old looking ideal condenser boiler HE15P and I have a ho****er tank and 3 slider timer Honeywell thing in my airing cupboard,i have my ho****er slid to off and heating on twice,,but I ALWAYS have ho****er,its boiling hot at all...
  10. N

    S plan plus heating controls.

    Hi, looking at which recommended controls to use Ie programmer plus 2 wireless programable room stats for each heating zone, I normally use Honeywell but pondering over a couple. Thanks Rob.
  11. C

    Honeywell v Sangamo

    I need to buy a 3 port motorised valve for my domestic system. Is the extra cost of Honeywell really justified against say a Sangamo valve? ( over twice as much )
  12. K

    Smartfit Valve Replacment

    Hi I have a low voltage Honeywell Smartfit valve fitted to my central heating but I'm looking to change the central heating controls. It's been suggested to me that there's a 230v valve out there from which the head can be removed and swapped for the Smartfit head. Does anyone know if this is...
  13. D

    Honeywell VC4613 actuator CLICKING

    Hey all, i have one of these actuators, its Clicking and failing to turn off the heating, it's stuck always on. I did try to get someone local to do it but 2 people failed to turn up so far, i guess because its a small job..most seem to want to install bathrooms etc!, or does anyone know...
  14. B

    Honeywell evohome

    Anyone got any pros/cons to this not used before but thinking it may just land me a nice little job. what I've got is a solicitors building over 3 floors. But now two separate companies sharing all building bills . However boiler in basement and thermostat in one office but they like it cool...
  15. R

    Honeywell Programmers

    I have two Honeywell programmers, an ST9400C 7 Day Two Channel Programmer and a ST9100C 7 Day Single Channel Programmer. I have just noticed that they are quite hot to the touch in top left hand corner of each programmer. Is this normal, I assume it could be as it is same on both programmers...
  16. M

    Noisy automatic bypass valve?!?

    Hi. I have a sealed system with 3 2way valves for HW, upstairs CH and downstairs CH. The ABV whistled when downstairs heating was on. Plumber by chance twiddled with ABV which stopped the whistle. Now ABV and noise around that loop is incredible noisy, can be heard throughout the whole house...
  17. U

    Changing 2 port valve

    hi, can you swap a Siemens 2 port valve for a honeywell valve without having to change the pipes? will the new honeywell valve fit on the old thing that the siemens valve is connected to
  18. A

    Honeywell wireless thermostat controllers

    My mother has a Worcester boiler, connected to a Honeywell wireless receiver which is controlled by a Honeywell CM921 thermostatic controller. Due to limited mobility she'd like to be able to have a second controller (so one upstairs and one downstairs) can I simply get her 2 second wireless...
  19. A

    Honeywell wireless thermostat controllers

    My mother has a Worcester boiler, connected to a Honeywell wireless receiver which is controlled by a Honeywell CM921 thermostatic controller. Due to limited mobility she'd like to be able to have a second controller (so one upstairs and one downstairs) can I simply get her 2 second wireless...
  20. H

    honeywell sundial wiring center permanently on.

    Hello Im after some help with a honeywell sundial wiring center. The boiler and pump are permanently on. The cylinder stat was wired incorrectly by the home owner with the common and 2 wires the wrong way round. Having corrected that I am getting 170 volts down the common and 1 wire of the...

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