background image

 

 

 

EN0H 8545 UK07 R1 09/06 

CM702 

PROGRAMMABLE THERMOSTAT 

 

PRODUCT SPECIFICATION SHEET

 

 

 

The 

CM702

thermostat is designed to provide automatic time 

and temperature control of heating 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 
(<

5A

). 

The 

CM702

 is designed with the installer in mind and 

includes a moulded back-plate with trunking guides and 
wiring breakouts to make installation quick and easy.  

The 

CM702

 large LCD display, button layout based on the 

same simple programming philosophy used on our acclaimed 
CM20 products and the introduction of an ‘OK’ button makes 
it easier to install and more user friendly.  

The 

CM702

 features a unique programming function that 

allows the user to select an alternative time & temperature 
profile whenever their lifestyle requirements change (e.g. 
weekend, bank holiday). The unit is ideal for consumers who 
want reliable precise temperature control from a modern 
looking, simple to program and easy to use product. 

FEATURES 

 

Attractive slim, modern styling makes it ideal for 
location in any type of home. 

 

24-hour heating program. 

 

Up to 4 daily independent time and temperature level 
changes let you set 4 time and temperatures pairs to 
suit your lifestyle. 

 

Temporary programmed temperature override to 
temporarily override the programmed temperature till 
the next switch point. 

 

1/2

 

Program button allows switching to an alternative 

heating program whenever it’s required with just one 
button press. This alternative program can be 
adjusted in exactly the same way as the normal 
heating program. 

 

Room Temperature Enquiry. 

 

EEPROM memory holds the user program 
indefinitely.  

 

OFF mode has an integral frost protection setting at 
minimum 5

°

C (installer adjustable) so that pipes in 

the house will never freeze in winter.  

 

24...230V 5A resistive, 2A inductive SPDT relay 
provides compatibility with most domestic central 
heating systems reducing the need to stock many 
different models. 

 

Battery powered by 2 x AA size (LR6) alkaline cells. 

 

Minimum battery life of 2 years with low battery 
warning indicator. 

 

Built-in default heating program. 

Surface or wall box mounting options, with trunking 
guides and wiring breakouts to simplify installation. 

 

No installer links or special installer switches on the 
back of the unit mean no adjustment is required for 
combi-boilers and most domestic central heating 
systems. 

 

User Set-Up Mode allows extra functions to be set at 
the discretion of the user: 

 

AM-PM or 24hr time display. 

 

Resetting the heating profile to factory default. 

 

Installer Set-Up Mode allows extra functions to be set 
at the discretion of the installer to match the 
consumers applications and needs: 

 

Pump Exercise. 

 

Upper / Lower Set point Limit Adjust. 

 

Temperature offset. 

 

Minimum ON time. 

 

Cycle rate. 

 

Proportional Band Width. 

 

Diagnostic Mode to assist in fault finding. 

Summary of Contents for CM702

Page 1: ...perature override to temporarily override the programmed temperature till the next switch point 1 2 Program button allows switching to an alternative heating program whenever it s required with just one button press This alternative program can be adjusted in exactly the same way as the normal heating program Room Temperature Enquiry EEPROM memory holds the user program indefinitely OFF mode has a...

Page 2: ...accuracy 0 5 K nominal 20 o C 50 load 3 K Δ hour Room Temperature display range From 0 o C to 50 o C 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 Selectable by application see installer set up Wiring Terminal block capable of accepting wires up to 2 5 mm 2 Wire access Mains wiring rear right Low volt...

Page 3: ...ons Enable special features To enter the installer set up mode a Press the OFF button b Press and hold the INFO i button and the two program buttons together c The unit will display the first parameter of installer parameter group category 1 from n 1 to n 19 d Press the TEMP or buttons to change the factory setting The display will flash indicating that a change has been made e Press the green OK ...

Page 4: ...the desired limit Lower Temperature Limit The normal lower temperature limit of 5 o C can be increased up to 21 o C to protect the inhabitants from cold Useful if the inhabitants include the elderly children or disabled Set parameter n 7 category 1 in the installer set up mode to the desired limit Temperature Offset If the thermostat is located in a hot cold location and cannot be moved because of...

Page 5: ...teps 1 Lower Temperature Limit 7 LL 5 5 C Lower Temp Limit 6 to 21 6 C to 21 C adjustment in 1 C steps 1 Temperature Offset 12 tO 0 No offset 3 to 3 3 C to 3 C adjustment in 0 1 C steps 1 Proportional Band Width 13 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 1 Reset Parameters to Factory Defaults 19 FS 1 All settings held are the factory defaults Changes to 0...

Page 6: ... near doors or windows or in direct sunlight MOUNTING The CM702 thermostat can be mounted directly on the wall surface or on to an electrical wall box WIRING The CM702 thermostat is designed for fixed wiring only and must be installed in accordance with the latest l E E regulations Ensure the wiring connection to the supply is via a fuse rated at no more than 5 amps and a Class A switch having con...

Page 7: ... 09 06 WIRING Description Model Logo Literature Availability Spec Sheet 1 1 day programmable thermostat 1 1 day programmable thermostat with 6 switch points instead of 4 CMT702A1004 CMT702A1012 Honeywell Honeywell French Dutch Italian Spanish German Portuguese French Dutch Italian Spanish German Portuguese Sep 05 Oct 06 ENOH8545 ENOH8545 ORDERING SPECIFICATION ...

Reviews: