CM67
CHRONOTHERM
PRODUCT SPECIFICATION SHEET
The CM67 Chronotherm is designed to provide automatic
time and temperature control of heating or cooling systems
in villas and apartments. It can be used as part of a system
in conjunction with combi boilers, oil- burners and gas fired
boilers, circulation pumps, thermal actuators, zone valves
and electric heat systems (<8A).
The CM67 is designed with the installer in mind and includes
a moulded backplate with trunking guides and wiring
breakouts to make installation quick and easy.
The CM67 display, buttons and slider layout are based on
the same simple programming philosophy used on the
acclaimed CM51 product. The unit is ideal for consumers
who want reliable precise temperature control from a simple
to program easy to use product.
FEATURES
• Attractive slim styling makes it ideal for location in
• Surface or wallbox mounting options, trunking
any home.
guides and wiring breakouts simplify installation.
• 7-day program
• 6 daily independent time and temperature level
changes let you set 6 time and temperatures pairs to
suit your life style.
• OFF position on the slider has an integral fixed frost
protection setting at minimum of 5°C (installer
adjustable) so that pipes in the house will never
freeze in winter.
• Installer Set-Up Mode allows extra functions to be
set at the discretion of the installer to match the
consumers applications :
• Temporary programmed temperature override to
temporarily override the programmed temperature
till the next switch point.
• Optimisation
•
•
Party button to temporarily maintain (or adjust)
the current temperature for 1-23 hours.
• Pump Exercise
• Upper / Lower Setpoint Limit Adjust
• Temperature offset
• Minimum ON time
• Cycle rate
Day Off button copies Sunday’s program into
tomorrow or today to allow a rest day program
without having to re-program the CM67.
•
Holiday button provides energy savings by
reducing the temperature for 1 to 99 days when
people are on holiday, returning to normal operation
(AUTO or MANUAL) on the day of return.
• Heat / Cool Operation
• Proportional Band Width
• EEPROM memory holds the user program
• CM67 has provision for add-on modules to allow the
installer to sell additional features during or after the
first CM67 installation, giving the installer an
additional sale.
indefinitely.
• Telephone Interface (optional) can be fitted to the
CM67 to allow switching between programmed mode
(slider position) and fixed set-point of 21 oC.
• Outside Temperature Sensor accessory (optional)
can be fitted to the CM67 to display the external
temperature.
• 24...230V 8A resistive, 3A inductive SPDT relay
provides compatibility with most domestic central
heating systems without stocking many different
models.
• Remote Temperature Sensor (optional) can be fitted
to the CM67 to control the temperature from another
room.
EN0R 8498 R2 11/98
CM67 CHRONOTHERM
INSTALLER SET-UP
To enter the installer set-up mode :
a) Set the program slider to OFF.
b) Press and hold Info i button and press PROG 3,4
together.
c) The unit will display the first parameter of the installer
parameter group category 1 (from n.1 to n.5).
d) Press TEMP
or
to change factory setting. The
display will flash indicating that a change has been
made.
e) Press INFO i button to confirm the change. The display
will stop flashing.
f) Press
+ or - to go to next parameter.
Abbreviated Set-Up Description
g) Press PROG 2 button to go to Installer parameter group
e.g. OP = Optimisation
category 2 (from parameter n.6 to parameter n.16).
h) To exit installer mode move the slider in MAN or AUTO
Installer Set-up Number
position.
(Press
+ or - to change)
e.g. 1 = Optimisation
Installer Set-Up Mode
1
Selected
Factory Setting or New Choice
In Installer set up we can :
Press TEMP L or Mto change
e.g. O = Optimisation disabled
1 = Optimisation enabled
❑ Set-up specific applications
❑ Enable special features
❑ Establish support for Optional Accessories
Specific Applications
Setting
Minimum
What do you need to change ?
Note :
a. To change Cycle/Hour, please go to parameter n. 9 in the
installer set-up mode.
Cycle/
Hour
ON time
(in minutes)
b. To change Minimum ON Time, please go to parameter n. 2 in
the installer set-up mode.
Heating
Gas Boilers
(<30KW)
6
3
1
4
No action required
Oil Boiler
1. Set Minimum ON Time to 4 minutes.
2. Set Cycle/Hour to 3.
Thermal
Actuator
12
1
Set Cycle/Hour to 12.
Zone valve
6
1
1
No action required.
Electric heating
(for applications
<8A)
12
1. Configure the Chronotherm for electric heating (set parameter
n.7 in the installer set up mode to 1).
2. Set Cycle/Hour to 12.
1. For cooling application only, set the Chronotherm to cooling
(set parameter n.6 in the installer set-up mode to 0)
2. For heat/ cool application, set the Chronotherm accordingly to
required mode of operation
Air
conditioning
winter = heating
summer = cooling
by changing parameter n.6 in the installer set-up mode. Explain to
the end-user how to implement the change-over.
Heat Pump/
Air conditioner
3
4
1. Set Minimum ON Time to 4 minutes .
2. Set Cycle/Hour to 3.
3
EN0R 8498 R2 11/98
CM67 CHRONOTHERM
Special Features
Description
What to do if we wish this
feature
Optimisation (Variable
Start Time)
Adaptive Intelligence
recovery TM
The Chronotherm will adjust the start time in the
morning/ afternoon so the desired temperature is
reached by the start of the program period e.g. Time
7:00, Temp 21 oC. The Chronotherm will monitor the
accuracy of the start up and use this information to
modify the calculation for the following day by
changing the ramp rate (initial 3 K/hr) .The system will
restrict the start time to a max of 3 hours.
Set parameter. 1 in the installer set-
up mode to 1.
Optimisation will not work in cooling mode.
AM-PM/ 24hr Display
Pump exercise
Change display format (default 24hr)
Set parameter n.3 in the installer set -
up mode to 1.
When enabled the Pump Exercise will switch the relay
on for 1 minute at 12:00 if the relay has not been
switched on since 12:00 the previous day.
Set parameter n.8 in the installer set -
up mode to 1.
While in Holiday mode the Pump Exercise feature, if
enabled, will operate.
Upper Temperature
Limit
The normal upper temperature limit of 30 oC can be
Set parameter n.11 in the installer set
reduced down to 21 oC to save energy. Useful for small -up mode to the desired limit.
commercial premises.
Lower Temperature
Limit
The normal lower temperature limit of 5 oC can be
increased up to 16 oC to protect the inhabitants from
cold. Useful if the inhabitants include the elderly,
children or disabled.
Set parameter n.12 in the installer set
-up mode to the desired limit.
Temperature Offset
If the Chronotherm is located in a hot/cold location and Set parameter n.13 in the installer set
cannot be moved because of wiring then the measured/ -up mode to the desired offset value.
displayed temperature can be adjusted by +/- 3 oC.
Useful if the homeowner wants the reading to match
another appliance temperature display.
Proportional Band Width Can be adjusted up to 3 oC (default is 1.5 oC) to provide Set parameter n.15 in the installer set
better temperature control (less overshoot).
-up mode to the desired value.
Useful for:
a. Well insulated homes with over-sized heating
systems
b. Air systems with fast response
Optional
Accessories
Description
What to do if we wish this
feature
Outside Temperature
Sensor
An Outside Temperature Sensor can be fitted to your
CM67 to allow the homeowner to display the outside
temperate on the Chronotherm display by using the
INFO i button. CM67 will read the outside temperature
every 10 minutes. Outside temperature display range is
from -30 oC to +45 oC. The sensor can be connected up
to 50 meters from the unit.
1. Fit the sensor (instructions
included in the sensor package)
2. Set parameter n. 10 in the
installer set-up mode to 1
Remote Temperature
Sensor
A Remote Temperature Sensor can be fitted to your
CM67 to allow the Chronotherm to control temperature
from another room or space where it is inconvenient to
locate the CM67 It will read the remote sensor every 1
minute. The sensor can be connected up to 50 meters
from the unit. Useful for commercial premises where
the public may tamper with the product.
1. Fit the sensor (instructions
included in the sensor package)
2. Set parameter n. 10 in the
installer set-up mode to 2
Automatic Time Setting
(ATS) Module
The ATS module picks up a time signal daily from a
European transmitter, so you never need to set or
adjust the time.
1. Fit the ATS module
2. Set parameter n. 4 in the installer
set-up mode to 1
EN0R 8498 R2 11/98
4
CM67 CHRONOTHERM
Parameter
Installer Set-
Up Number /
Abbreviation
(Press + or -
key to
Factory Setting
Optional Setting
Installer Set-
Up Category
(Press keys
PROG 1 or 2
to select)
1 2
change)
Display
Description
Display/Setting
Description
Optimisation
1:0P
2:0t
0
1
Optimisation disabled
1
Optimisation enabled
1
1
MinimumONTime
1minuteminimumONtime
2to5
2- 2minutes
3 - 3 minutes
4 - 4 minutes
5 - 5 minutes
AM-PM / 24hr Display
Accessory Module Type
3:Cl
4:At
0
0
24 hr clock display
1
12hrAM/PMclockdisplay
1
1
No accessory module
plugged in
1, 2
1 - Auto Time Setting Module
2 - Weatherstation Module
RESET Time /
Temperature Program
5:rP
1
Time / Temperature profile set
to factory default
Changes to 0 when one of the
time/temp profiles are changed
0
1
Time / Temperature are as
programmed
To restore the factory profile
set to 1
1
You must now press the PROG 2 key to enter the next section
Heat / Cool Operation
Electric Heat
6:HC
7:Eh
8:PE
9:Cr
1
0
0
6
Heating Operation
0
Cooling Operation
2
2
2
2
Applications < 3A
1
1
Applications 3 - 8A
Pump Exercise Enabled
Pump Exercise
Cycle Rate
Pump Exercise Disabled
6 cycles per hour (cph) for gas
boilers, zone valves and fan-
coil
3, 9, 12
3 - 3 cph
9 - 9cph
12 - 12 cph
Second Temperature
Sensor
10:SS
0
No sensor fitted
1, 2
1 - Outside Temperature
Sensor fitted
2
2 - Remote Temp. Sensor
fitted
Upper Temperature Limit
Lower Temperature Limit
Temperature Offset
11:UL
12:LL
13:tO
14:PO
30
5
30°C Upper Temp. Limit
5°C Lower Temp. Limit
No offset
21 to 29
6 to 16
21°C to 29°C adjustment in
1°C steps
2
2
2
2
6°C to 16°C adjustment in
1°C steps
0
-3 to +3
-99 to +3
-3°C to +3°C adjustment in
0.1°C steps
Pressure Offset
(needed for
0
No offset
-99 mbar to +99 mbar
adjustment in 1 mbar steps
Weatherstation accessory
only)
Proportional Band Width
15:Pb
16:FS
1.5
1
1.5°C Proportional Band
1.6 to 3.0
1.6°C to 3.0°C adjustment in
0.1°C steps
2
2
Return all Set-Up
Features to Factory
Settings
All settings held are the factory
defaults. Changes to 0 when
one of the parameter values
are changed
0
1
Settings are as modified
above
To restore the factory profile
set to 1
5
EN0R 8498 R2 11/98
CM67 CHRONOTHERM
DIMENSIONS
INSTALLATION
LOCATION
The CM67 Chronotherm is the temperature control element
in the heating/cooling system and MUST be located in a
position with good air circulation at average room
temperature on an inside wall 1.5 metres above the floor
level. Do not position the CM67 Chronotherm near sources
of heat (radiators, hot air vents, TV or lights), near doors or
windows, or in direct sunlight.
MOUNTING
The CM67 Chronotherm can be mounted directly on the wall
surface or on an electrical wallbox.
WIRING
The CM67 Chronotherm is designed for fixed wiring only and
must be installed in accordance with latest l.E.E. regulations.
Ensure the wiring connection to the supply is via a fuse rated
at no more than 8 amps and a Class "A" switch (having
contact separation of at least 3 mm in all poles).
IMPORTANT
1. The installer must be a trained service engineer
2. Disconnect the power supply before beginning
installation
EN0R 8498 R2 11/98
6
CM67 CHRONOTHERM
WIRING
ORDERING SPECIFICATION
Description
Model
Logo
Literature
Spec Sheet
NOTE: The model shown opposite
can be ordered as samples to
establish the exact
7-day
programmable
thermostat
T6667B1002
Honeywell
English
ENOR8498
customisation requirements
Remote sensor T7043G1004
Honeywell
Multi-
Language
ENOR8496
ENOR8495
ENOR8501
Outside temp
sensor
F42009537-
001
Multi-
Language
Automatic
Time Setting
Module Europe
Q6667B1007
Multi-
Language
Honeywell Control Systems Limited
Newhouse Industrial Estate
Motherwell ML1 5SB
United Kingdom
EN0R 8498 R2 11/98
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