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Honeywell CM907 User Manual

Honeywell CM907
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CM907 - User Guide
7 day Programmable
Room Thermostat
Honeywell Control Systems Ltd.
Arlington Business Park,
Bracknell
Berkshire
RG12 1EB
Technical Help Desk: 08457 678999
www.honeywelluk.com
42010943-703 R1
© 2005 Honeywell International Inc.
Description
The Honeywell CM907 is a programmable room thermostat designed to
control your heating system efciently, 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 CM907 to provide the most
home comfort at the least cost.
Features
Ergonomic User Interface features an OK-buttonmaking the CM907 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.
7-day heating program lets you set the CM907 independently for each day of
the week to match your lifestyle, whilst maximizing energy savings.
6 independent temperature levels per day lets you set any 6 temperatures
you require (from 5 to 35°C) so you can enjoy economical comfort every 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.
Party button lets you temporarily maintain (or adjust) the current temperature for
1 - 23 hours. Useful when you have guests or leave the house for a short period.
Day Off button copies Sunday’s program into any other day of the week, so that
you can make the CM907 follow this program if you have a day or days off.
Automatic Summer/Winter Time Change will adjust the clock automatically
for ‘Daylight Saving Time’.
Built-in Memory holds the user program indenitely so that it is never lost
– even if you remove the batteries.
Outside Temperature Sensor (optional accessory) can be tted to the
CM907 to display the temperature outside your home.
Remote Temperature Sensor (optional accessory) can be tted to the CM907
to control to the room temperature in another location, concealing the CM907.
Optimum Start option is an advanced feature which ensures that the optimum
temperature conditions are achieved at the required times.
Question and Answer IconNeed help?

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Honeywell CM907 Specifications

General IconGeneral
Programming7-day programmable
Temperature ControlElectronic
Power SourceBattery
MountingWall Mounted
Control ModeOn/Off
Switching ActionSPDT (Single Pole Double Throw)
Temperature Setting Range5°C to 35°C
Power Supply2 x AA Alkaline Batteries
Holiday ModeYes
Optimum StartYes
Accuracy±0.5°C
Battery BackupYes
TypeProgrammable Thermostat
DisplayLCD
Temperature Display Range0°C to 40°C
Number of Time Periods6 per Day
Frost ProtectionYes
Voltage230V AC
Switching Current8A Resistive, 3A Inductive

Summary

Getting Started: Installing Batteries

Step 1: Battery Installation Procedure

Detailed steps for correctly inserting the thermostat's AA LR6 alkaline batteries.

Getting Started: Initial Setup

Step 2: Setting Date and Time

Instructions for configuring the thermostat's current date and time settings.

Programming the CM907: Heating Programs

Modifying the Heating Program

Steps to change the programmed time and temperature settings for each period.

CM907 Programming: Customizing Programs

Adjusting Period Start Times and Temperatures

Detailed steps for setting each of the six daily time and temperature periods.

CM907 Programming: Time Periods

Operating the CM907: Modes and Display

Choosing Operating Modes

Explanation of AUTO (automatic), MAN (manual), and OFF operating modes.

CM907 Operating: Special Functions

Temperature Override Function

Temporary manual adjustment of the target temperature during AUTO mode.

HOLIDAY Function Setup

Setting a constant temperature for a specified number of days while away.

CM907 Operating: Additional Functions

PARTY Function Setup

Temporary temperature adjustment for events or short periods away from home.

CM907 Operating: Time and Day Off

Fine-Tuning the CM907: User Parameters

CM907 Fine-Tuning: Parameter Options

FAQ: Battery and Basic Operation

Troubleshooting Guide

Common Symptoms and Causes

Addressing issues like blank screens, no heating, and slow switching.

System Connection Issues

Checking boiler connections and when to call an installer for system faults.

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