Honeywell T4 & T4R. How to Operate, Program, Setup and Install. Honeywell Home T4R Review. 2021

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  • čas přidán 11. 07. 2024
  • I will show you in detail how to Setup, how to Program, how to Operation and additional parameters/functions. Also what's in the box.
    All you need to know about this thermostat.
    If you would like one of the thermostats you can click link below which will take you to Amazon.
    “As an Amazon Associate I earn from qualifying purchases.”
    Honeywell T3 Hard Wired Programmable Thermostat.
    www.markballard-ltd.com/recomm... (Amazon).
    Honeywell T3R Wireless programmable Thermostat.
    www.markballard-ltd.com/recomm... (Amazon).
    Honeywell T4 Hard Wired Programmable Thermostat.
    www.markballard-ltd.com/recomm... (Amazon).
    Honeywell T4R Wireless programmable Thermostat.
    www.markballard-ltd.com/recomm... (Amazon).
    I will explain in detailed step by step instructions.
    If you want to support me further then please leave a Donation in my “TOOL BOX FUND” that is really appreciated.
    www.paypal.com/donate/?cmd=_s...
    Please don’t forget to subscribe for more help videos.
    My site
    www.markballard-ltd.com/
    Links to my other videos.
    VIDEO: How to replace a leaking Radiator Valve. With out draining the system.
    • Replace Radiator Valve...
    Honeywell T3R
    • Video
    T3R verses the T4R head to head comparison.
    • Honeywell T3-T3R Compa...
    Wiring up the Honeywell T4R
    Binding the Honeywell T4R, if you have lost your wireless connation between the two units.
    Binding the Honeywell T3R, if you have lost your wireless connation between the two units.
    • Honeywell T3R. Re-Bind...
    Replacing an old Honeywell CM927 with Honeywell T3R.
    • Honeywell CM927 Screen...
    VIDEO: How to replace a leaking radiator valve. With out draining the system: Part 1.
    • Replace Radiator Valve...
    VIDEO: How and Why you should add "INHIBITOR" to your heating system. Including "System Cleaner" and other "Chemicals"..
    • How and Why You Should...
    VIDEO: How to Replace a Radiator with Out Draining the System.
    • How to Replace a Radia...
    VIDEO: How to flush Out a Radiator. The Best Way, Getting the Best Results
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    VIDEO: How To Remove a Olive, 5 Different Ways To Remove a Old Olive Off a Pipe
    • How To Remove a Olive,...
    VIDEO: How to Balance your Heating System to make it more efficient. Which will REDUCE YOUR GAS BILL.
    • How to Balance Your He...
    VIDEO: How to replace a Central Heating Pump. All you need to know. With out draining the system.
    • How to Replace Your Ce...
    VIDEO: How to clean the Magna Clean Professional 1
    • How to Clean the Adey ...
    VIDEO: How to Fix a Radiator NOT Getting Hot! Thermostatic Valve Stuck.
    • How to Fix Cold Radiat...
    VIDEO: How to Get a Radiator working and Hot Again, Everything I would do.
    • Everything You Can Do ...
    VIDEO: How to Install the Hive Thermostat Mini, Explained in Detail Wiring, Pairing, Factory Reset.
    • How to Install the Hiv...
    Chapters
    0:00 Intro
    2:09 Honeywell T4. Honeywell different models
    3:03 Honeywell T4R Unboxing, What's in the Box.
    3:15 Honeywell T4R Manual. Honeywell T3R User Guide.
    3:50 Honeywell T4R Unboxing, What's in the Box.
    4:33 Honeywell T4R Batteries.
    4:50 Honeywell T4R Wall bracket.
    5:12 Honeywell T4R Receiver box.
    7:40 Honeywell T4R Setup wizard.
    11:59 Stand and Location
    12:49 Programming heating
    19:43 Using and Operation
    20:21 Override Program
    22:53 Manual and Auto
    23:56 Turn Heating on and Off
    24:14 Menus
    24:31 Away Holiday Function
    25:33 Lock and unlock
    27:17 Wireless connection
    27:56 Additional Parameters
    23:35 Honeywell T4R Parameters, Change Clock to 12 hour am/pm.
    27:07 Honeywell T4R Locking
    28:38 Honeywell T4R Battery Symbol
    28:54 Honeywell T4R Binding
    29:15 Honeywell T4R Red Flashing light.

Komentáře • 197

  • @duster.
    @duster. Před 3 lety +8

    Thank you Mark. Clear and concise. The engineer handed to module to me and said I'll let you set your times and temp!

  • @nicholasmacfarlane4599
    @nicholasmacfarlane4599 Před 2 lety +3

    Thank you so much- just had new boiler installed, after our old faithful Glow Worm was costing so much to run in difficult times.
    The engineer told me if was a breeze to set up- but any technology in your late sixties is difficult to understand. You explained it so well, and we now mainly use the boiler in manual mode.
    The instructions were awful- but your video explained everything in plain English- well done, it is so much appreciated !!

  • @Halogen_Star
    @Halogen_Star Před 2 lety +3

    Thank You! it's taken me two years to try and sus this out, finding your video today has helped a lot. Subscribed!

  • @xray5pec5
    @xray5pec5 Před 2 lety +1

    Thank you Mark. I could'nt work out why I had identical T4's with different weekday settings.....and there it was. I am using the T4 to replace 4 seperate standard Honeywell manual zone thermostats controlling my underfloor heating. A great straightforward and understandable explanation.

  • @32minnieme
    @32minnieme Před 8 měsíci +3

    You're a life saver!!!... Didn't have a clue how to sort it even with instructions.. finally a winter with heat again 😊

  • @davidhall4499
    @davidhall4499 Před 7 měsíci +2

    Thank you Mark. Even after reading the instruction booklet I could not figure how to set up the T4m. Your video was so informative and help full I could not have programmed the unit without it.

  • @andreascott209
    @andreascott209 Před rokem

    Thank you so much. This demonstration made it easy for me to install the receiver and program the thermostat. Great delivery and at a pace that was easy to follow. Great work 👏🏽 👍🏽

  • @ememedem6476
    @ememedem6476 Před 7 měsíci

    Mark to the rescue 🙌🏾. Detailed step by step setup for anyone to follow. Thank you 🙏🏾

  • @patriciay7015
    @patriciay7015 Před 2 lety +3

    Thank you so much Mark. Your video is brilliant and took the headache out of programming my new T4R.

  • @T3efy
    @T3efy Před 2 lety

    Perfect. Was wondering why there was no OFF option during the day, but turning the Temp down makes Perfect sense. Thank you!

  • @tonymoulsdale905
    @tonymoulsdale905 Před rokem

    So helpful. Avoided us aving to call an engineer after frustrating morning trying to solve connectivity issues, by describing the (30 second) fix which stupidly was not in the manufacturer's information. So grateful for the video

  • @ricardoa.m1322
    @ricardoa.m1322 Před 2 lety +2

    Thank you so much Mark you are a topman how you explain the things,how professional you are.
    Thank you again for your valuable time.

  • @hfcoundscutlery7120
    @hfcoundscutlery7120 Před 3 lety +1

    Thanks a lot Mike brilliant tutorial Te Honeywell instructions failed to mention several features you covered. Most useful

  • @kevingregory3498
    @kevingregory3498 Před 2 lety

    Very straight forward and helpful Thank you very much. The plumbers left my wife completely bedazzled with their instructions!

  • @judygreen4633
    @judygreen4633 Před 2 lety +2

    What a brilliant video. So glad I found it because I was a bit baffled by the instruction manual which wasn't ever so helpful. THANK YOU!!

  • @shirleyaudu7006
    @shirleyaudu7006 Před rokem +2

    Thank you so much as your video practical demonstration was 10 times better than the actual manufacturers Manual.

  • @TimHowellX
    @TimHowellX Před 3 lety

    Excellent video, thanks very much for the detailed explanation especially about what temperature settings to use at different times of the day.

  • @belleshell3696
    @belleshell3696 Před 2 lety

    Brilliant! Easy to follow instructions, thank you! x

  • @OoSweetCheekso0
    @OoSweetCheekso0 Před 2 lety

    Thank you so much! My son has been playing with the thermostat and my heating was coming on whenever it feels like it! I think I’ve sorted it now.

  • @craigwilliams6734
    @craigwilliams6734 Před 2 lety

    That’s absolutely brilliant Mark!!! Thank you!!!

  • @gerritrietberg5218
    @gerritrietberg5218 Před rokem

    Thank you Mark!!!! for me special the Manual modus and the parameters. Great.

  • @nadia_sunshine
    @nadia_sunshine Před rokem

    Thank you Mark !!! Easy explanation and simple to use now.

  • @jeremytapsell2487
    @jeremytapsell2487 Před 2 lety +1

    Well done Mark! the best explained video I have ever watched!!!

  • @kirstenoffer4928
    @kirstenoffer4928 Před 11 měsíci

    A really helpful and informative video which helped me sort out the heating parameters for daytime when I will be working. Saved for future reference. Thank you

  • @user-ld7kl6zq5c
    @user-ld7kl6zq5c Před rokem

    Really useful, gave details such as overriding a programme for specified number of hours and holiday/away settings etc which were simply not mentioned in Honeywell's own manual. Likewise how to 'unhide' options like the Optimisation settings which are useful but not on the menu as received. Well done Mark!

  • @devonshepherd2642
    @devonshepherd2642 Před 3 lety

    Great video, made us buy a honeywell TR4, really happy with it.

  • @sholaking5027
    @sholaking5027 Před rokem

    This is a great video. Thank you Mark.

  • @HS-nf4su
    @HS-nf4su Před 2 lety

    Really helpful video, thanks!

  • @dopemusic6414
    @dopemusic6414 Před 5 měsíci

    Very helpful video thank you. I got stuck with the Auto and Manual option but I figured it out.

  • @redraw0160
    @redraw0160 Před rokem

    Thanks, my friend. The instruction booklet wasn’t actually accurate for my one and this helped me sort it - thanks.

  • @jys160
    @jys160 Před 2 lety

    Very helpful video, thank You!

  • @smileyrose5999
    @smileyrose5999 Před 2 lety +1

    Thank you so much. This was so easy to follow, compared to some set ups I have seen for the Honeywell system. Very informative. 👍👍👍👍👍👍

    • @kellyclarke1212
      @kellyclarke1212 Před 2 lety

      Hi hun did you struggle with the guide book like me

  • @everalwilliams6809
    @everalwilliams6809 Před rokem +1

    Thanks this video has saved me numerous times, keep the videos coming would like to see more from you

  • @yam9455
    @yam9455 Před rokem

    Excellent video .really well done .we are old and you made this so sime to understand.again thank you from sunny Norfolk uk

  • @faridawatto1
    @faridawatto1 Před rokem

    Thank you so much! Very useful information.

  • @user-qw7bc2to7q
    @user-qw7bc2to7q Před 4 měsíci

    Thank Youuu!!! Just moved into a new place as was so confused. Your video helped so much!

  • @reatreatseclusion9891
    @reatreatseclusion9891 Před 3 lety

    Thank you so much. Grateful for such a well explained video, 😘🤗

  • @annhayes6246
    @annhayes6246 Před rokem

    Thank you explained it clearly - have shared the link with my guy that installed.

  • @carlmountain5368
    @carlmountain5368 Před 9 měsíci +1

    What a fantastic video that is. Really helpful. Thank you!

  • @vincentdyer9592
    @vincentdyer9592 Před 5 měsíci

    Fantastic instructions.
    Great job.

  • @kill4envy
    @kill4envy Před 2 lety

    Thankyou! When we got a new boiler a few months ago they installed this thermostat. The engineer basically said "thats on and off, thats up and down. Don't f**k with any of that or you'll lock the unit"
    I've been wanting to set timers for weeks because we've been waking up freezing cold. We weren't even left the instructions booklet so I've had no idea what to do 😅

  • @gilli3018
    @gilli3018 Před 2 lety +2

    This is SO helpful! I wasn't sure whether I needed the T4 or the T4R and within a couple of minutes you'd given me the answer through this video. Thank you again and best wishes for you and your channel.

  • @sanaahmed1227
    @sanaahmed1227 Před 3 lety

    thanks so much. very helpful video 👍

  • @wa5909
    @wa5909 Před rokem

    Thankyou mark, you helped a lot with this video

  • @user-lx8lz1uj6m
    @user-lx8lz1uj6m Před 6 měsíci

    Thank you. That was brilliant. Excellent explanations made the instructions easy.

  • @sparkle4227
    @sparkle4227 Před rokem

    Thank you 4 your help it was very helpful

  • @alisonwilde3004
    @alisonwilde3004 Před 3 lety

    Great video will try it later thanks

  • @nickb8321
    @nickb8321 Před 4 měsíci

    This is fantastic help for the technically challenged like myself. I will be following with eager interest once my new Vaillant Ecotec Plus 826 is installed. Superb channel, thanks Mark.

  • @valerie5098
    @valerie5098 Před 9 měsíci

    Excellent . I had been looking for a copy button . Now I know how to get the same every day .

  • @malikqayyum1199
    @malikqayyum1199 Před 8 měsíci +1

    Excellently explained all the features, very helpful. Thank you 😊

  • @Lawrie-ed9lp
    @Lawrie-ed9lp Před 5 měsíci

    Thankyou Mark I never would have sussed out how to “Bind” room stat with controller.small donation sent.
    Larry

  • @percythepig5207
    @percythepig5207 Před 2 lety +1

    Very very helpful video THANK YOU

  • @Lucretia9000
    @Lucretia9000 Před rokem

    Really handy, just moved into a place with this thing installed.

  • @romanphoto1196
    @romanphoto1196 Před rokem

    You're top man great video 👍🏻

  • @teresaembley1043
    @teresaembley1043 Před 2 lety +2

    Thank you so much. I’m keeping this video for future reference.

  • @kellyclarke1212
    @kellyclarke1212 Před 2 lety +2

    Thank you so much for this video I’ve been trying to do this with the guide book but got no where it

  • @nacefamazigh6280
    @nacefamazigh6280 Před rokem

    Thank you so much man

  • @smills5483
    @smills5483 Před rokem

    thanks mate, a worthy watch indeed

  • @yakaparaler
    @yakaparaler Před rokem

    Merci pour cette vidéo démo bien utile. Très bonnes explications bien claires.

  • @MRFRACOLLA
    @MRFRACOLLA Před rokem

    Thank you so much!!!!

  • @chrismartin7594
    @chrismartin7594 Před 5 měsíci

    Thank you, your amazing. I'm all sorted thank you.

  • @faridratni6799
    @faridratni6799 Před 3 lety +1

    Excellent video helped my wife a lot

    • @MarkBallardLTD
      @MarkBallardLTD  Před 3 lety

      👍. Nice to get my first feed back with good positive comment. Thanks, glad it helped.

  • @ericvaneupen9986
    @ericvaneupen9986 Před 2 lety +2

    Thanks, Mark, for ALL your crystal clear videos. A question: is it possible to bind the T4R unit with the receiver of a CM927?
    Best regards, Eric

  • @jennicrouch2671
    @jennicrouch2671 Před 2 lety

    Thank you you life saver. Peace 💪🙏

  • @josephfoy8449
    @josephfoy8449 Před rokem

    Thank you worked perfect 👍🏻top man

  • @clivearrowsmith4988
    @clivearrowsmith4988 Před 3 lety +3

    Very useful video as I thought you could set it like my old Honeywell but this explains the difference etc. Great video better then the manual. Well done Mark

  • @marcobigguns3417
    @marcobigguns3417 Před 3 lety

    Hi mate really good video thanks, can you explain what the heating cycle rare means it would be very helpful cheers Marco

  • @zarimusic94
    @zarimusic94 Před 2 lety

    Thanks for this it was giving me anxiety this lmao ! :)

  • @carolinebennett9719
    @carolinebennett9719 Před 2 lety +2

    Hi Mark great video, we've just had one of these installed in our Quaker meeting house, the engineer didn't know how to programme it! So I'm so pleased to watch this. My question is: can we keep this in a cupboard to stop other users of the hall tampering with it or should we just lock it as you've shown?

  • @rvdbrugg
    @rvdbrugg Před 7 měsíci

    Does this new T4R function/communicate with the old receiver-unit of the previous model CMS927B1019 or do I have to buy the full package incl. new CV-receiver?
    What's the difference between on/off or modulation thermostat?
    (in combi with Vaillant CV)

  • @WolfPhotographyVideos

    Thank you 😊

  • @fabiansalgado8418
    @fabiansalgado8418 Před 2 lety

    finally working perfect Tanks

  • @sweetlyketoffee
    @sweetlyketoffee Před rokem

    Thank you so much! This was very helpful! I recently moved into my flat and this was already installed with no instructions 😅 mine doesn’t have a battery though or that wireless thing but pretty much the same. It is stuck to the wall and if I remove it it resets 😊

  • @davesteer8007
    @davesteer8007 Před 4 měsíci

    Hi Mark. Great video. Would you recommend the T3R or T4R to replace a CM67ng wireless thermostat? Thanks. Dave

  • @markg6320
    @markg6320 Před 3 měsíci

    Great video - super helpful. Thanks very much
    However I have a question please on the optimisation option on the 'special menu' - how does the optimisation option work please? I understand that the thermostat will assess the current room temperature and the next time/target temperature and then switch the boiler on/off before that target time in order for the temperature to hit the target at that time?
    If that's the case then you have say 7-9am at target temp of 21 degrees but then you leave the house for work at 9am so you want the target temp to fall to say 10 degrees at 9am......how does the thermostat decide on priorities? Does it turn the boiler off at say 8:30 so that the room cools down to 10 degrees at 9am or does it prioritise the 21 degree temp until 9am the turn off to try to get the temperature down to 10 degrees? If it does turn the boiler off before 9am but you definitely want the room to stay at 21 degrees until 9am how do you get round this issue (other than turning off the optimisation option!)
    I may have opened a can of worms here so you may ignore the question but I'm intrigued as I want to use this feature as I plan my programming
    Many thanks again for staying up late to make this video!
    Mark

  • @DCI11
    @DCI11 Před 8 měsíci

    Hello Mr. Ballard
    What thermostat is a direct replacement for my Honeywell CM 901 ? Without having to adjust the wiring . Many thanks

  • @geraldoakley7688
    @geraldoakley7688 Před 4 měsíci

    Hi quick question, my old thermostat had a variance of 3 degrees between the temp of when the furnace starts and stops, it gave it longer to run but waited longer to restart, at the moment it starts and stops to frequently, there fore it runs more often but for a shorter period of time, hope this makes sense. is there a setting that I can change to get a longer time between starts and stops

  • @Yellowswift3
    @Yellowswift3 Před 2 lety

    Thanks. :)

  • @hidr4g0nsp1r1t
    @hidr4g0nsp1r1t Před 7 měsíci

    hi thank you is it normal for the boiler/pump to be on for most of the time in the heating period target is 20 rooms is 20 but the boiler is still going it will turn off when the lower target than room temperature new boiler this year thank you for any advice help

  • @keithrichards788
    @keithrichards788 Před rokem

    They are a pain, you've made it so easy to work now

  • @regcheek3713
    @regcheek3713 Před 4 měsíci

    hI Mark, just got a new one of these, can I set it up just for on and off manually as required rather than programing it as some days we want it on and sometimes not

  • @mattbarr510
    @mattbarr510 Před 2 lety

    Thanks for vid great help. Mine is similar to this but its not wireless, lost my manual, if in the middle of night I need to run down to turn heating on just for 1hour can I do it with this, as I can't find how to, and I don't really want to be messing around with programs while being half a sleep and just want it on for 1 hr. Thanks

  • @krg2977
    @krg2977 Před 2 lety

    Hi Mark, quick question - is the wiring on my CM927 relay compatible with the replacement T4R? Is it a simple task of replacing like for like?

  • @annepercival7814
    @annepercival7814 Před 2 lety +1

    Thanks..will watch again when I have calmed down. My installer didn’t really have a clue how to operate this……and it is NOT intuitive at all..told me heating companies ‘have spent millions’ making sure these thermostats are easy for the techno phobe older generation. All I can say is that they wasted their money! So much easier when my controls were a manual dial, and not digital …..pushing one button, then another…..ticks etc etc

  • @Minne1989
    @Minne1989 Před 8 měsíci +1

    I noticed your start time of P1 differs from the end time of P6, without the ability to change the latter since the systems jumps directly to the temperature setting. I have the same problem here. There are gaps or overlap in the program. Any idea how to solve this?

  • @petervedder4848
    @petervedder4848 Před rokem

    Hi Mark, great video which explains it all, even though we have the T4M. One question, we also have our hot tap water from the boiler. Now when we open the hot water tap the "flame" symbol in the thermostat also comes on, is this supposed to be like this? I think it is but I cannot find any answer on this online (so far)

  • @neillgrieve7993
    @neillgrieve7993 Před 4 měsíci

    Solved my heating is on all night because it was in MAN setting! Thanks

  • @lindabrooks5459
    @lindabrooks5459 Před rokem

    Great video, however my honeywell remote which looks like this one but doesn't have honeywell home on the front, just honeywell, when the suitcase is on the screen I can't get rid of it. When it's on the screen and I go back to the menu, the suitcase is not there for me to scroll across to run off. Any ideas please? thank you

  • @acornbay1
    @acornbay1 Před rokem

    Hi there, Your video showed fitting the thermostat sender whilst mentioning you was adding the wires to the right side from the boiler later. My boiler is downstairs and the thermostat is upstairs on the landing which is silly as it never gets hot enough up there to activate the thermostat whilst downstairs is like an oven. So I was wanting the sender upstairs and the receiver controller downstairs. So can the sender NOT have the wires from the boiler to the right side i.e. no boiler directly connected. many thanks

  • @kevingregory3498
    @kevingregory3498 Před 2 lety

    Mark further to my comment below, do you have a video to set the TR4 for the most economical setting to work efficiently. We have a new all electrical boiler and want to keep costs down - currently two settings 6-10 am and 3 -9.30 but it seems to be using a lot of kWhs as starting from 16° and going to 20.5° each setting.

  • @sallyosbourne4891
    @sallyosbourne4891 Před rokem

    If you just want to use it in manual mode have you got do you set that up please

  • @Harris90
    @Harris90 Před 2 lety +1

    Hi Mark - another question. Is there any way to set the heating to come on, reach a temperature and then switch off completely rather than trying to maintain (trying to work out an economical way of using the heating after the bill changes).

  • @neillaw
    @neillaw Před 2 lety +1

    Any ideas why my boiler fires up intermittently when the thermostat is already at the temperature? Wondering if it's just keeping it at the temp, but I would think the temp on the device should drop for that to happen...

  • @Blurbmuz
    @Blurbmuz Před 3 lety

    What a kerfuffle! Is there one I can get with min 3 on and off times (I don't want continuous 'on' programmes I want the boiler to go off when I don't need it on) with a heat override/boost button for an hour or so in between the programmed heat times?

  • @JacobVR46
    @JacobVR46 Před 7 měsíci

    Hi. I just bought and installed a T4R. For the moment, I am keeping it on Manual on a low temperature 15C as no one is leaving in the house. The temperature has settled since at this low temperature so now the ambient temperature is the same as the manually set temperature on the thermostat. So now comes the tricky part. It seems like the default heating behavior of the thermostat is somehow to preserve this temperature by briefly turning ON/OFF the heating (ON for 1-2 minutes and OFF for 5 minutes). Now this for me is pretty much a waste of gas as the house has underfloor heating and turning the heating ON for just 1-2 minutes is pretty much useless as the water in the system cannot be heated that fast. I looked over the "Additional Parameteres" in this video and the ones that make some sense are the 2 CR (heating cycles per hours) + 3 OT (Minimum ON time) although these are not great either. The thermostat I was familiar with was working on a very basic principle: you set the temperature, turns ON the heating until it reaches 0.2 - 0.5 degrees above the set temperature, turns OFF the heating and then waits for the ambient temperature to drop by 0.2 - 0.5 below the set temperature and the heating cycle resumes.
    Is there a way to set this thermostat to work on the same principle?
    It is worth mentioning that the house only has the gas boiler and heat distribuitors on each floor. There is no automation yet installed to control the heating on each room yet.

  • @hache.9326
    @hache.9326 Před rokem

    Can you help, my scheduler didn't come on this morning and appears to have stopped working, yet the room temperature was lower than the scheduled temperature, it worked fine last night, I have a honeywell T4R, if I adjust it manually it works

  • @jessicametcalfe4916
    @jessicametcalfe4916 Před rokem

    hi, mine is stuck on the yr then it says 24 but it’s keeps freezing on this screen, have you any ideas how to unfreeze it because sometimes we can’t turn the heating off

  • @beverleypercival9721
    @beverleypercival9721 Před rokem

    I have followed your instruction (which were brill thank you) on how to program my T4 Thermostat but it is not saving my settings. i set my heating to come on at 8am and off at 10am then did other settings throughout the day then its saved but when i go back in it says heating will come on at 8am and off at 1pm please can you tell me what i am doing wrong

  • @graemeroberts2876
    @graemeroberts2876 Před rokem +1

    Good video but there’s lots more you could cover. There is both optimum start, which I use, and delayed start, as well as optimum stop. These need to be selected in the installation menu. Also, these stats don’t work like conventional mechanical thermostats where the heating is run continuously until the set temperature as reached with the boiler cycling the burner on and off as flow temperature set on the boiler stat rises and falls. The T4 series runs the heating for quite a long period from initial start when the room is cold but, as the room temp rises closer to set point, from about 1.5C below, the T4 will cycle the heating on and off quite frequently. It can be a bit puzzling to see the room temperature at say, 17.5C but the heating switched off when the set point is 19C. It uses latent heat coming off the radiators with an occasional boost of hot water from the boiler to eventually get the room to set point but it doesn’t do it in the conventional way. The saving on gas is noticeable - my first CM927 which the T4 replaced paid for itself in a year with lower bills. Optimum start uses artificial intelligence to work out in the first few weeks of use how long the heating system takes to warm the room to set point and adjusts on time to suit - it may start an hour earlier than the set time on a very cold winter morning but only 5 or 10 minutes early in milder weather. Optimum stop will stop heating earlier than set if the stat calculates the room will remain at set point until the desired final off time off the day. I use 17C overnight so the house doesn’t cool too much and take too long to heat up again next morning.

  • @philipcorps8723
    @philipcorps8723 Před 2 lety

    Hi there can I use the old received unit for cm927 for new t4rd thermostat control