Honeywell 7 Day Programmable Thermostat CM707

Product Information

We also have a third on/off thermostat, one which works out how much the temperature will over shoot, and turns off before the target is reached, but does not use a mark/space ratio to adjust boiler output. If you have a neutral in your old room stat it's normally for an accelerator / anticipator which mechanical stats need to improve accuracy. The way that I had resolved this was by turning both of the heating valves located in the airing cupboard to ‘manual open’ which keeps the valves open at all times across the entire house. So with a gas boiler the TRV head is king, this is the device used to control room temperature, and because it gradually opens and closes it works in harmony with the boiler, allowing it to modulate as it is designed to do.

These include a frost protection setting, an advance setting for pre-heating, and a holiday mode that allows you to maintain a low background temperature while you're away. It seems to think that the room temp is 5 degrees or lower all the time so boiler is constantly kicking in even when off (frost mode). They are particularly relevant for underfloor heating where there is a high, low response thermal mass (the floor slab) to control.The Nest thermostats are really designed for hot air systems, there is no provision to even link to a TRV. Personally I'd go with option 2 as it's almost guaranteed to be cheaper to implement and will still retain the two zone pipework. The Honeywell CM707 Programmable Room Stat 7 day is an easy-to-use programmable thermostat that allows you to set different temperatures for different times of the day and days of the week.

From as small as a radiator valve, to as large as a boiler, we offer a broad range of styles and budget options to suit every need. OFF mode has an integral frost protection setting at minimum 5°C (installer adjustable) so that pipes in the house will never freeze in winter.

Honeywell Home offering automatic time and temperature control, this Honeywell CM700 wired 7 day programmable thermostat is supplied with batteries, fixing screws and instructions, along with a moulded backplate with trunking guides and wiring breakouts for ease of installation. Bought as a direct replacement for an obsolete one that wasn’t working properly, as suggested by our heating engineer - works straight out of the box and easier to programme than our last one - should have replaced it she’s ago!

By installing wired thermostats on to the heating valves you will effectively be getting rid of the zones, though it will cost you more. The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. The range caters for all requirements with hard-wired or wireless versions and 1 day or 7 day programming. To further improve the ease of use and assist installation, the CM700 range includes a large LCD display. When following the app instructions, (ST9100c) i'm prompted to select Hot Water or Heating for which this controls.Wiser however has a memory built into the TRV head, so it knows at what point to start turning off, so can reheat a room faster. For example, they mention it's great for setting differing temperatures, and it'll give you more accurate control over the house temperature.

I would either do what David suggests or get an electrician in to bridge the wires - presumably meaning short the valves so they're always open. The switch wires for the boiler are connected via screw terminals on the backplate- but remember to switch off the power to your boiler first in case the wires are live! There is a problem where zone valves are used, Wiser thermostats will only allow use of the Opentherm module when single channel, so with new builds often there are zone valves, so they will not work with the OpenTherm module, EPH seems to be the odd one out, it does not link to TRV heads, but it can work as master/slave, so even with zone valves it can still control boiler with OpenTherm. The end goal is to remove the existing zoning for heating with the HoneyWell thermostats and the switch valves (i.Equally though it can be programmed for completely different times every day of the week making it much more customable for individual lifestyles. When we sat down and had that talk and you told that since I had a relationship with your friend (now my Ex) that you and I could never be, and that you looked at our relationship as a friendship. Read more about the condition New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable).