CM901 - User Guide
1 day Programmable
Room Thermostat
Honeywell Control Systems Ltd.
Arlington Business Park,
Bracknell
Berkshire
RG12 1EB
Technical Help Desk: 08457 678999
www.honeywelluk.com
42010943-103 R1
© 2005 Honeywell International Inc.
Description
The Honeywell CM901 is a programmable room thermostat designed to
control your heating system efciently, providing comfortable temperatures
when you are at home and energy savings when you are away. The following
instructions explain how to program and use the CM901 to provide the most
home comfort at the least cost.
Features
Ergonomic User Interface features an ‘OK-button’ making the CM901 very
easy to use so you always stay in control.
Dynamic Text Display provides informative ‘on-screen’ feedback and
operational assistance to the user.
Extra Large LCD (Liquid Crystal Display) Screen with Backlight provides
added user friendliness and clearer viewing – even in the dark.
6 independent temperature levels lets you set any 6 temperatures you require
(from 5 to 35°C) so you can enjoy economical comfort throughout the day.
Holiday button saves energy by letting you reduce the temperature for 1 to 99
days while you are away from home, resuming normal operation on your return.
Automatic Summer/Winter Time Change will adjust the clock automatically
for ‘Daylight Saving Time’.
Built-in Memory holds the user program indenitely so that it is never lost
– even if you remove the batteries.
Outside Temperature Sensor (optional accessory) can be tted to the
CM901 to display the temperature outside your home.
Remote Temperature Sensor (optional accessory) can be tted to the CM901
to control to the room temperature in another location, concealing the CM901.
Optimum Start option is an advanced feature which ensures that the optimum
temperature conditions are achieved at the required times.
