User manual HONEYWELL CM702

[. . . ] 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. 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. [. . . ] LCD Screen Battery Low Indicator Time Display Burner On Indicator Temperature Display Temperature Change Buttons Information Enquiry Button Operating Mode Buttons Green OK Button Battery Compartment Battery Cover 1 / 2 Program Button Program Buttons Time Change Buttons SPECIFICATION S Batteries : 2 x 1. 5 V IEC LR6 (AA) Alkaline cells Battery life Battery replacement Switch type Electrical rating : Minimum 2 years : Program retained in EEPROM : SPDT (potential free) : 230 V~, 50. . . 60 Hz, 0. 1 A to 5 A resistive 0. 1 A to 2 A inductive (0. 6 pf) 24 V~, 50. . . 60 Hz, 0. 5 A to 5 A resistive 0. 5 A to 2 A inductive (0. 6 pf) : 24 hour or 12 hour AM/PM format : Typically better than 10 minutes per year : 2 independent sets of 4 daily time and temperature level changes that can be switched between as desired. : Time of day - 1 minute Program - 10 minute steps o Temperature : ±0. 5 K (nominal) @ 20 C, 50% load control accuracy 3 K /hour o Room Temperature display range Control form Minimum ON time Cycle rate Wiring Wire access Dimensions : From 0 C to 50 C o o : P + I (Proportional + Integral) : 10% of cycle time (min one minute), adjustable to 2 to 5 min (see installer set up) : Selectable by application (see installer set up) : Terminal block capable of accepting 2 wires up to 2. 5 mm : Mains wiring ­ rear right. : 133 x 88. 5 x 26 mm (w x h x d) 133 x 175 x 26 mm (w x h x d) (flap open) : Operating temperature range 0 to 40 C Shipping and storage temperature range o -20 to 55 C Humidity range 10 to 90% rh, noncondensing o Time display Time keeping accuracy Program Time setting resolution Sensing element : 100K (@ 25 C ) NTC thermistor Temperature setting range : Program : 5 to 35 C in 0. 5 C steps o Frost : 5 C or equal to lower limit o o (5 C to 21 C). o o Environmental Approvals : Designed to meet European EN approvals EN60730-1(Nov 2000), EN55014-1 (1997), EN55014-2 (2000) 2 EN0H 8545 UK07 R1 09/06 CM702 CHRONOTHERM INSTALLER SET-UP 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). e) Press the green OK button to confirm this change and the display will stop flashing. f) Press the + button to go to the next parameter. Abbreviated Set-Up Description e. g. Cl = Clock Format g) Press the program button > to go to category 2 in the Installer mode (from n. 1 to n. 5). h) To exit the installer mode, press the AUTO, MAN or OFF buttons. Installer Set-up Number (Press + or - to change) e. g. 1 = Clock Format In Installer set-up we can: Set-up specific applications Enable special features Factory Setting or New Choice Press TEMP or to change e. g. 12 = AM/PM Format 24 = 24hr Format Specific Applications Setting Cycle/ Hour Minimum ON time (in minutes) What do you need to change? Note : a. Set Cycle/Hour to 12. Heating Gas Boilers (<30KW) Oil Boiler Thermal Actuator Zone valve Electric heating (for applications <5A) 6 3 12 6 12 1 4 1 1 1 3 EN0H 8545 UK07 R1 09/06 CM702 CHRONOTHERM Special Features AM-PM/ 24hr Display Pump exercise Description Change display format (default 24hr). 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. The normal upper temperature limit of 35 C can be o reduced down to 21 C to save the homeowner energy. The normal lower temperature limit of 5 C can be o increased up to 21 C to protect the inhabitants from cold. [. . . ] Changes to 0 when one of the parameter values are changed 1. 6 to 3. 0 1 19:FS 1 0 1 1 `Category 2: System Parameters (You must press the `>' program key to enter this section) Minimum ON Time 1:Ot 1 1 minute minimum ON time 2 to 5 2 - 2 minutes 3 - 3 minutes 4 - 4 minutes 5 - 5 minutes 3 - 3 cph 9 - 9cph 12 - 12 cph Pump Exercise Enabled 2 Cycle Rate 2:Cr 6 6 cycles per hour (cph) for gas boilers, zone valves and fan-coil Pump Exercise 3, 9, 12 2 Pump Exercise 5:PE 0 1 2 5 EN0H 8545 UK07 R1 09/06 CM702 CHRONOTHERM DIMENSIONS INSTALLATION LOCATION The CM702 thermostat is the control element of the heating system and, therefore, MUST be located in a position with good air circulation, at average room temperature and on an inside wall, 1. 5 metres above the floor level. Do not position the CM702 thermostat near sources of heat (radiators, hot air vents, TV or lights), 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. Ensure the wiring connection to the supply is via a fuse rated at no more than 5 amps and a Class "A" switch (having contact separation of at least 3 mm in all poles). [. . . ]