Honeywell Chronotherm Cm67 Users Manual EN0R8498

CM67 to the manual d71fd36c-70e9-437d-9794-4c5f5ba123da

2015-01-23

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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
any home.
7-day program
6 daily independent time and temperature level
changes let you set 6 time and temperatures pairs to
suit your life style.
Temporary programmed temperature override to
temporarily override the programmed temperature
till the next switch point.

•
•
•

Party button to temporarily maintain (or adjust)
the current temperature for 1-23 hours.
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.
EEPROM memory holds the user program
indefinitely.
Telephone Interface (optional) can be fitted to the
CM67 to allow switching between programmed mode
o
(slider position) and fixed set-point of 21 C.
24...230V 8A resistive, 3A inductive SPDT relay
provides compatibility with most domestic central
heating systems without stocking many different
models.

•
•
•

Surface or wallbox mounting options, trunking
guides and wiring breakouts simplify installation.
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 :

•
•
•
•
•
•
•
•

Optimisation
Pump Exercise
Upper / Lower Setpoint Limit Adjust
Temperature offset
Minimum ON time
Cycle rate
Heat / Cool Operation
Proportional Band Width

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.
Outside Temperature Sensor accessory (optional)
can be fitted to the CM67 to display the external
temperature.
Remote Temperature Sensor (optional) can be fitted
to the CM67 to control the temperature from another
room.

EN0R 8498 R2 11/98

CM67 CHRONOTHERM

CM67 CONTROLS/DISPLAY LAYOUT

SPECIFICATIONS
Batteries

: 2 x 1.5 V IEC LR6 (AA) Alkaline cells

Battery life

: 4 years typical (Duracell MN1500) for
applications with loads <3A

Temperature
: ±0.5 K (nominal) @ 20 C, 50% load
control accuracy
3 K ∆/hour
o

: 3 years typical for electric heat
applications (>3A, <8A)
Battery
replacement

: Program retained in EEPROM

Switch type

: SPDT (potential free)

Electrical rating

: 230 V~, 50...60 Hz, 0.5 A to 8 A resistive
0.5 A to 3 A inductive (0.6 pf)
24 V~, 50...60 Hz, 0.5 A to 8 A resistive
0.5 A to 3 A inductive (0.6 pf)

Time display

: 24 hour or 12 hour AM/PM format

Time keeping
accuracy

: Typically better than 10 minutes per year

Program

: 7-day with 6 daily time and temperature
level changes

Time setting
resolution

: Time of day - 1 minute
Program - 10 minute steps

Room
Temperature
display range

: From 0 oC to 40 oC

Control form

: P + I (Proportional + Integral)

Minimum ON
time

: 10% of cycle time (min one minute),
adjustable to 2 to 5 min (see installer set
up)

Cycle rate

: 3, 6( default), 9, 12. Selectable through
the installer set up mode.

Wiring

: Terminal block capable of accepting
2
wires up to 2.5 mm

Wire access

: Mains wiring - rear, left or below
Low voltage wiring - rear, left or below

Dimensions

: 130 x 87R(82L) x 29 mm (w x h x d)
130 x 172 x 29 mm (w x h x d) (flap
open)

Environmental

: Operating temperature range 0 to 40 C
Shipping and storage temperature range
o
-20 to 55 C
Humidity range 0 to 90% rh, noncondensing

Approvals

: Designed to meet European EN
approvals EN60730-1(1995), EN55014-1
(1997), EN55014-2 (1996)

o
Sensing element : 100K (@ 25 C ) NTC thermistor

Temperature
setting range

o

o

: Program : 5 to 30 C in 0.5 C steps
o
Frost
: 5 C or equal to lower limit
o
o
(5 C to 16 C). Frost protection does not
work in cooling mode

EN0R 8498 R2 11/98

2

o

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).
or
to change factory setting. The
d) Press TEMP
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.

g) Press PROG 2 button to go to Installer parameter group
category 2 (from parameter n.6 to parameter n.16).

Abbreviated Set-Up Description
e.g. OP = Optimisation

h) To exit installer mode move the slider in MAN or AUTO
position.

Installer Set-up Number
(Press
+ or - to change)
e.g. 1 = Optimisation
Installer Set-Up Mode
Selected

1

Factory Setting or New Choice

In Installer set up we can :

Press TEMP ▲ or ▼ to change
e.g. O = Optimisation disabled
1 = Optimisation enabled

❑ Set-up specific applications
❑ Enable special features
❑ Establish support for Optional Accessories

Specific Applications

Setting
Cycle/
Hour

Minimum
ON time
(in minutes)

Heating

What do you need to change ?
Note :
a. To change Cycle/Hour, please go to parameter n. 9 in the
installer set-up mode.
b. To change Minimum ON Time, please go to parameter n. 2 in
the installer set-up mode.

Gas Boilers
(<30KW)

6

1

No action required

Oil Boiler

3

4

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

No action required.

Electric heating
(for applications
<8A)

12

1

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
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.

Air
conditioning

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

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
o
7:00, Temp 21 C. 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.
Optimisation will not work in cooling mode.

Set parameter. 1 in the installer setup mode to 1.

AM-PM/ 24hr Display

Change display format (default 24hr)

Set parameter n.3 in the installer set up mode to 1.

Pump exercise

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.
While in Holiday mode the Pump Exercise feature, if
enabled, will operate.

Set parameter n.8 in the installer set up mode to 1.

Upper Temperature
Limit

The normal upper temperature limit of 30 oC can be
o
reduced down to 21 C to save energy. Useful for small
commercial premises.

Set parameter n.11 in the installer set
-up mode to the desired limit.

Lower Temperature
Limit

The normal lower temperature limit of 5 oC can be
o
increased up to 16 C 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
cannot be moved because of wiring then the measured/
o
displayed temperature can be adjusted by +/- 3 C.
Useful if the homeowner wants the reading to match
another appliance temperature display.

Set parameter n.13 in the installer set
-up mode to the desired offset value.

Proportional Band Width

Can be adjusted up to 3 C (default is 1.5 C) to provide
better temperature control (less overshoot).
Useful for:
a. Well insulated homes with over-sized heating
systems
b. Air systems with fast response

Set parameter n.15 in the installer set
-up mode to the desired value.

Optional
Accessories

Description

What to do if we wish this
feature

Outside Temperature
Sensor

An Outside Temperature Sensor can be fitted to your
CM67to allow the homeowner to display the outside
temperate on the Chronotherm display by using the
INFO i button. CM67will read the outside temperature
every 10 minutes. Outside temperature display range is
o
o
from -30 C to +45 C. 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
CM67to 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

What to do if we wish this
feature

o

o

4

CM67 CHRONOTHERM
Parameter

Installer SetUp Number /
Abbreviation
(Press + or key to
change)

Factory Setting

Display

Optional Setting

Description

Display/Setting

Optimisation

1:0P

0

Optimisation disabled

Minimum ON Time

2:0t

1

1 minute minimum ON time

AM-PM / 24hr Display

3:Cl

0

24 hr clock display

Accessory Module Type

4:At

0

No accessory module
plugged in

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

1

Installer SetUp Category
(Press keys
PROG 1 or 2
to select)
1 2
Description
Optimisation enabled

1

2 - 2 minutes
3 - 3 minutes
4 - 4 minutes
5 - 5 minutes

1

12 hr AM / PM clock display

1

1, 2

1 - Auto Time Setting Module
2 - Weatherstation Module

1

0

Time / Temperature are as
programmed
To restore the factory profile
set to 1

1

2 to 5

1

1

You must now press the PROG 2 key to enter the next section
Heat / Cool Operation

6:HC

1

Heating Operation

0

Cooling Operation

2

Electric Heat

7:Eh

0

Applications < 3A

1

Applications 3 - 8A

2

Pump Exercise

8:PE

0

Pump Exercise Disabled

1

Pump Exercise Enabled

2

Cycle Rate

9:Cr

6

6 cycles per hour (cph) for gas
boilers, zone valves and fancoil

3 - 3 cph
9 - 9cph
12 - 12 cph

2

Second Temperature
Sensor

10:SS

0

No sensor fitted

1 - Outside Temperature
Sensor fitted
2 - Remote Temp. Sensor
fitted

2

Upper Temperature Limit

11:UL

30

30°C Upper Temp. Limit

21 to 29

21°C to 29°C adjustment in
1°C steps

2

Lower Temperature Limit

12:LL

5

5°C Lower Temp. Limit

6 to 16

6°C to 16°C adjustment in
1°C steps

2

Temperature Offset

13:tO

0

No offset

-3 to +3

-3°C to +3°C adjustment in
0.1°C steps

2

Pressure Offset
(needed for
Weatherstation accessory
only)

14:PO

0

No offset

-99 to +3

-99 mbar to +99 mbar
adjustment in 1 mbar steps

2

Proportional Band Width

15:Pb

1.5

1.5°C Proportional Band

1.6 to 3.0

1.6°C to 3.0°C adjustment in
0.1°C steps

2

Return all Set-Up
Features to Factory
Settings

16:FS

1

Settings are as modified
above

2

3, 9, 12

1, 2

All settings held are the factory
defaults. Changes to 0 when
one of the parameter values
are changed

5

0
1

To restore the factory profile
set to 1

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

7-day
programmable
thermostat

T6667B1002

Honeywell

English

ENOR8498

Remote sensor

T7043G1004

Honeywell

MultiLanguage

ENOR8496

Outside temp
sensor

F42009537001

MultiLanguage

ENOR8495

Automatic
Time Setting
Module Europe

Q6667B1007

MultiLanguage

ENOR8501

Honeywell Control Systems Limited
Newhouse Industrial Estate
Motherwell ML1 5SB
United Kingdom
EN0R 8498 R2 11/98

NOTE: The model shown opposite
can be ordered as samples to
establish the exact
customisation requirements

http://europe.hbc.honeywell.com



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