Valves
Pipework Systems 
Honeywell International - Make energy efficient heating easy
The versatile wireless Honeywell CM900
slimline programmable thermostat can now be used to create
energy-efficient heating zones easily and cost-effectively, by
transmitting time/temperature signals directly to wireless
receivers on radiator and underfloor heating valves. The stylish
CM900 can also transmit wirelessly to a boiler controller where
it eliminates the control cables in a conventional installation,
which are time-consuming and obtrusive.
In its zone controller role, the CM900 transmits to Honeywell
HR80UK wireless controllers on each radiator or underfloor
heating valve in the zone. There is no need to fit a 2-port
motorised valve for the zone, and no need to drain the system.
It is ideal to add additional heating zones to a CM Zone
wireless zone control system
In turn, the HR80UKs transmit demand signals wirelessly to a
boiler controller, so providing a Multi Point Boiler Interlock.
This optimises boiler firing to save energy and reduce boiler
wear. Up to four wireless CM900s can operate with the same
boiler controller, which greatly simplifies addition of zones.
Whichever way the CM900 is used, it provides up to six
time/temperature changes per day to match temperatures with
lifestyles, three comfort-enhancing, energy-saving overrides at
the touch of a button (“Party”, “Holiday” and “Day off”), and
many other energy-saving, comfort-enhancing features.
The Honeywell CM900 is very easy and obvious to set up and
operate, due to its simple on-screen instructions and large
ultra-clear Line of Text™ display – whether used as a
conventional room programmer linked direct to the boiler
controller or as a zone controller signalling to radiators. The
CM900 gives clear English language prompts at every stage so,
whatever the user does, it is obvious exactly what is happening
and what they need to do next. The aim was to make the
instruction book unnecessary, for users and installers, but
Honeywell provides it anyway.
The CM900 is ideal for radiator and underfloor heating, with gas
or oil fired boilers including condensing and combination
models, as well as electric heating or cooling systems.
Email:
HVACProductsUK@honeywell.com