User operating instructions the horstmann 425 tiara and diadem programmers are 2 circuit central heating and hot water programmers able to switch on and off twice every 24 hours. The 425 tiara is a twin circuit, hot water and central heating programmer, has 16 programmes available for fully pumped systems, including independent programming of heating and. Water heating controls horstmann electronic 7 data sheet. User manuals, guides and specifications for your horstmann 425 tiara motherboard, thermostat. Horstmann 425 diadem twin channel 24hour programmer. Horstmann diadem programmer heating controls online. Horstmann thermostats below you can find all models horstmann thermostats for which we have manuals available. Horstmann horstmann 425 tiara users manual 120173 horstmann 425 tiara users manual 120173 horstmann pdf. You can also discuss and ask your questions about horstmann 425 diadem below. Horstmann controls ltd, a division of horstmann group ltd. Horstmann 425 tiara 2 channel timeswitch programmers. Horstmann horstmann425tiarausersmanual120173 horstmann425tiarausersmanual120173 horstmann pdf. If this is not the manual you want, please contact us.
Horstmann 425 diadem user guide can be downloaded by clicking on horstmann 425 diadem manual. Horstmann 425 tiara users manual manualslib makes it easy to find manuals online. The tiara is ideally suited for both gravity systems and fully pumped systems with either midposition or zone valves. Below you can view and download the pdf manual for free. This twin circuit, hot water and central heating programmer has 16 programmes available for fully pumped systems, including independent programming of heating and hot water and 10 programmes for gravity hw pumped ch system. However, after approx 18 months of operation, i experienced erratic operation of my heating system. Page 1 user operating instructions horstmann 425 tiara diadem electromechanical programmers the horstmann 425 tiara and diadem programmers are 2 circuit central heating and hot water programmers able to switch on and off twice every 24 hours. Jan 08, 2015 view the manual from horstmann, which is categorized in the home appliance category. Horstmann diamond timer replacement screwfix community.
Hi, i hope i am in the correct forum as this might be electrical rather than plumbing. The horstmann 425 coronet timeswitch is a single circuit central heating timeswitch able to switch on and off twice every 24 hours. An advance switch is provided to make temporary overrides to the on or off periods and a selector. Channelplus h27xl read user manual online or download in pdf format. This was fitted many years ago when the integral timer gave up the ghost. Simple to use with easily understood settings adjusted in seconds through rotating 24 hours dial and tappet arrangement. Among the best known horstmann products is the 425 range of electromechanical time clocks, with models including the coronet time switch, and tiara and diadem twin channel programmers. Pdf files 1 views 1233 htt4 tamper proof user s manual. N x 425 tiara controlling fully pumped system using two motorised 2 port valves with auxiliary switches via room stat and cylinder stat. Page 1 user operating instructions horstmann 425 tiaradiadem electromechanical programmers the horstmann 425 tiara and diadem programmers are 2 circuit central heating and hot water programmers able to switch on and off twice every 24 hours. It is wired as per the wiring diagram, terminal one goes straight to the boiler live, and terminal 4 goes to the thermostat, then comes back to the ch pump live. Horstmann tiara 425 heating control programmer nos new vintage retro boxed. The horstmann 425 tiara and diadem programmers are 2 circuit central heating and hot water programmers able to switch on and off twice every 24 hours.
As a local supplier, phc are proud to support horstmann by distributing the entire range of horstmann products. Horstmann diamond timer replacement screwfix community forum. Thermostats horstmann channelplus h37xl series 2 users. Horstmann horstmann 425 tiara usersmanual120173 horstmann 425 tiara usersmanual120173 horstmann pdf. Horstmann 425 central heating programmers hot water.
Need a manual for your horstmann 425 diadem thermostat. Full of plastic works though and not like the old brass works similar to the works of old house clocks. Nov 17, 2015 how to set your manual programmertimer so it turns your central heating on and off automatically when you want it to. Discussion in plumbers talk started by franck67, jul 7, 2012. Database contains 2 horstmann 425 tiara manuals available for free online viewing or downloading in pdf. I have horstmann 425 tiara programmer but it wont let me. Horstmann twin circuit hot water central heating programmer. Horstmann 425 coronet electromechanical timeswitch. Installation instructions, user operating instructions manual. I have a boiler that has a horstmann 425 as the timer. An advance switch is provided to make temporary overrides to the on or off periods and a selector switch gives a further choice of programmes. The range consists of three models, the coronet single circuit timeswitch and the tiara and diadem two circuit. Horstmann 425 tiara time clock is the new replacement for your clock.
Hi, i would bet yours is a horstmann 425 diadem or tiara, is so the direct plug in replacement using the existing backplate is the channelplus h27xl, available from lots of places quote like permalink. I would want to first check that the black wire 2nd from the left on the horstmann backplate is securely connected inside the horstmann tiara backplate. We provide a comprehensive list of thermostat manuals for troubleshooting. Horstmann 425 range installation instructions yumpu. Summary of contents for horstmann 425 range page 1 horstmann 425 range installation instructions the 425 range of traditional electromechanical programmers offer a simple yet effective way of controlling hot water and central heating with the twin circuit diadem and tiara also allowing independent control of both. Pdf files 1 views 1233 htt4 tamper proof users manual. Download user operating instructions manual of horstmann 425 diadem motherboard, thermostat for free or view it online on.
Horstmann 425 tiara twin circuit time switch features a rotating 24 hour dial, on and off tappets and slider switches for setting the programme, the 425 series are considered to be one of the simplest programmers to use and understand particularly where householders are used to and prefer a mechanical device. Horstmann 425 coronet electromechanical timeswitch user operating instructions 1. Product description siemens drayton randall honeywell horstmann sunvic pegler myson potterton daily electromechanical programmer 10 or 16 way rwb2e 400 805 600 sm2 3020p 3060 4033 set3m h425 tiara h425 diadem mp2 tmp2 to replace a diverter valve with a midposition valve, replace old brown wire with grey and white together and make the orange. Buy the horstmann 425 coronet single channel timeswitch at. Horstmann 425, 525, 527, h21, h27, h121, tiara, link l25. Diadem model is a two circuit programmer with indicator lights. Manual horstmann 425 diadem thermostat manuals manuall. Horstmann 425 electro mechanical programmer is the simplest way to control hot water and central heating in the home. Horstmann 425 tiara user operating instructions manual. Free horstmann domestic heating controls manual download. Horstmann 425 tiara central heating time switch programmer. Select onoff twice a day, on all day, or permanently on or off with advance switch and 9 pin wall fixing plate. Horstmann electronic 7 maxistore instruction manual. Horstmann 17 boilers 5 valves 419 gas valves 4 diverter valves 80 isolating valves 5 non return valves 1 pressure relief valves 91 trvs 1 misc 3 valve actuators 60 valve cartridges 12 valve repair kits 32 air pressure switch 51 air vents 69 automatic air vents 64.
The user manual will give you an idea of how easy or hard it is to operate. Horstmann 425 425 electro mechanical programmer tiara rexeluk. Can be used as a direct replacement for horstmann 425 diadem, tiara. Horstmanns best selling, big value 425 series programmers are the simplest way to control hot water and central heating in the home. Horstmann s best selling, big value 425 series programmers are the simplest way to control water and central heating in the home simple to use with easily understood settings adjusted in seconds easy to install, uses a 9 way standard backplate amp rated advance control to allow manual override switching on or off suitable for pumped and gravity hot water systems. Pdf files 1 views 1233 horstmann centaurstat data sheet. Horstmann central heating controls central heating. Horstmann 425 tiara programmer horstmanns bestselling, big value 425 series programmers are the simplest way to control water and central heating in the home.
With our online resources, you can find horstmann t50 user guide or just about any type of. Advance control to allow manual override switching on or off. There is users manual for horstmann channelplus h37xl series 2 available here for reading and downloading. View the manual from horstmann, which is categorized in the home appliance category. Page 1 horstmann 425 range installation instructions the 425 range of traditional electromechanical programmers offer a simple yet effective way of controlling hot water and central heating with the twin circuit diadem and tiara also allowing independent control of both. Front view of economy 7 quartz water heater switch neon il ndicators summer time clock dial opening 91 s stop 1 hour boost timer. The simple instructions contained in this user guide are designed to help with the programming and operation of these units. Horstmann 425 range installation instructions manual pdf. If you have any questions about this item or any other in our ebay store please call 01623 757009 in advance of ordering.
Isolate mains supply before commencing installation horstmann 425 range installation instructions. Horstmann tiara programmer heating controls online. Take control of your central heating system with our huge range of heating controls and thermostats suitable for any installation or budget. Users manual for thermostats horstmann channelplus h37xl. With rotating 24hour dial, on and off tappets and slider switches for setting the programme, the 425 series is considered to be one of the simplest programmers to use. Simple to use with easily understood settings adjusted in seconds. Also view the frequenty asked questions at the bottom of the page for useful tips about your product.
Horstmann the horstmann economy 7 quartz is an electromechanical water heating control, which can be set to take advantage of cheap nightrate electricity, so that there is a tank of hot water available for the morning. Select onoff twice a day, on all day,or permanently on or off with advance switch and 9 pin wall fixing plate. You will be glad to know that right now horstmann t50 user guide pdf is available on our online library. Need a manual for your horstmann 425 coronet thermostat. The 425 tiara is a twin circuit, hot water and central heating programmer, has 16 programmes available for fully pumped systems, including independent programming of heating and hot water and 10 programmes for gravity hw pumped ch systems. How to set your manual programmertimer so it turns your central heating on and off automatically. There are also frequently asked questions, a product rating and feedback from users to enable you to optimally use your product. Horstmann 425 tiara programmer specialists in plumbing.
Horstmann 425 diadem problem troubleshooting problem. It works well when it works but i live in the country and prone to power cuts. Personally i think they are fairly expensive for a mechanical basic clock, but they have been around for many years. Download user s manual for horstmann channelplus h37xl series 2. If you have any questions about this item or any other in our ebay store please call.
The electrisaver is a simple push button electronic timer that saves energy by remembering to switch ex tax. Its only likely to require a solderedin battery of. Being in control of your heating can save you money and make your home more. End user support literature such as user guides and brochures is available for. How can i replace my mechanical central heating timer with.
Horstmann 425 tiara digital programmers 24 hour programmer. Horstmann 425 tiara user operating instructions manual pdf. The domestic building services compliance guide has been amended for 2018. After about 2 years the horstmann will not start on its own.
Horstmanns best selling, big value 425 series programmers are the simplest way to control water and central heating in the home simple to use with easily understood settings adjusted in seconds easy to install, uses a 9 way standard backplate amp rated advance control to allow manual override switching on or off suitable for pumped and gravity hot water systems. Horstmann t50 user manual forums horstmann 425 diadem programmer time switch best selling, big value 425 series programmers are the simplest way to control water and central heating in the home, the horstmann centaurplus c17 timeswitch will allow user operating instructions 1. Great deals from pdqsparesltd in horstmann ebay shops. Then trace the other end of that black wire in the white connecting box to make sure it has a good connection to the neutral cable coming from the fused switch box, which also is likely black. Horstmann 425 tiara 2 channel timeswitch for sale online. Horstmann 425 tiara 2 channel timeswitch for sale online ebay. Buy the horstmann 425 tiara 2 channel timeswitch at. Horstmann 425 tiara programmer 18470 product rating 4. Horstmann central heating controls 3 products sort by. Jun 28, 2018 horstmann 425 tiara time clock is the new replacement for your clock. Nov 28, 2016 hi, i currently have a horstmann diadem, which is working fine but we want to replace it with one that provides a bit more control. Buy with confidence from a direct stockist with s of weekly sales this item will be dispatched the same working day if paid for before 1400. How to set your manual programmertimer so it turns your central heating on and off automatically when you want it to.
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