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.
To enter the installer set-up mode :
In Installer set up we can :
Specific Applications | Setting | What do you need to change ? | ||
Cycle/ Hour | Minimum ON time (in minutes) | 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. | ||
Heating | 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. | |
Air conditioning | 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. | |||
Heat Pump/ Air conditioner | 3 | 4 | 1. Set Minimum ON Time to 4 minutes . 2. Set Cycle/Hour to 3. | |
Special Features | Description | What to do if we wish this feature |
Optimisation (Variable | The Chronotherm will adjust the start time in the | Set parameter. 1 in the installer set- |
Start Time) | morning/ afternoon so the desired temperature is | up mode to 1. |
Adaptive Intelligence | reached by the start of the program period e.g. Time | |
recovery TM | 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. | ||
Optimisation will not work in cooling mode. | ||
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 reduced down to 21 oC 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 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 cannot be moved because of wiring then the measured/ displayed temperature can be adjusted by +/- 3 oC. 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 oC (default is 1.5 oC) 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 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 |
Parameter | Installer Set- Up Number / Abbreviation (Press + or – key to change) | Factory Setting | Optional Setting | Installer Set- Up Category (Press keys PROG 1 or 2 to select) 1 2 | ||
Display | Description | Display/Settin | g Description | |||
Optimisation | 1:0P | 0 | Optimisation disabled | 1 | Optimisation enabled | 1 |
Minimum ON Time | 2:0t | 1 | 1 minuteminimum ON time | 2 to5 | 2 – 2 minutes 3 – 3 minutes 4 – 4 minutes 5 – 5 minutes | 1 |
AM-PM / 24hr Display | 3:Cl | 0 | 24 hr clock display | 1 | 12hrAM /PM clockdisplay | 1 |
Accessory Module Type | 4:At | 0 | No accessory module plugged in | 1, 2 | 1 – Auto Time Setting Module 2 – Weatherstation Module | 1 |
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 |
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 pehrour (cph) for gas boilers, zone valves and fan- coil | 3, 9, 12 | 3 – 3 cph 9 – 9cph 12 – 12 cph | 2 |
Second Temperature Sensor | 10:SS | 0 | No sensor fitted | 1, 2 | 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 1°C steps | in 2 |
Lower Temperature Limit | 12:LL | 5 | 5°C Lower Temp. Limit | 6 to 16 | 6°C to 16°C adjustment i 1°C steps | n 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 adjustmen 0.1°C steps | t in 2 |
Return all Set-Up Features to Factory Settings | 16:FS | 1 | All settings held are the factor defaults. Changes to 0 when one of the parameter values are changed | y 0
1 | Settings are as modified above To restore the factory profile set to 1 | 2 |
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
WIRING
ORDERING SPECIFICATION
Description | Model | Logo | Literature | Spec Sheet |
7-day programmable thermostat | T6667B1002 | Honeywell | English | ENOR8498 |
Remote sensor | T7043G1004 | Honeywell | Multi- Language | ENOR8496 |
Outside temp sensor | F42009537- 001 | Multi- Language | ENOR8495 | |
Automatic Time Setting Module Europe | Q6667B1007 | Multi- Language | ENOR8501 |
NOTE: The model shown opposite can be ordered as samples to establish the exact customisation requirements
Honeywell Control Systems Limited http://europe.hbc.honeywell.com
Newhouse Industrial Estate
Motherwell ML1 5SB
United Kingdom
EN0R 8498 R2 11/98
Download Manual:
HONEYWELL CM67 Programmable Thermostat PRODUCT SPECIFICATION GUIDE
HONEYWELL CM67 Programmable Thermostat PRODUCT SPECIFICATION GUIDE
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