User manual HONEYWELL CM31

[. . . ] ANALOGUE CHRONOTHERMS PRODUCT SPECIFICATION SHEET The CM31 and CM37 chronotherms are designed to provide automatic time and temperature control of heating systems in the home. [. . . ] Relevant standards EN60730-1 (1995), EN55014-1 (1997), EN55014-2 (1996). Time switch Environmental Clock accuracy Programme Protection class : IP30 Approvals ORDERING SPECIFICATION T6631B1005 - CM31 with 24 hour clock programme T6637B1009 - CM37 with 7 day clock programme DIMENSIONS EN0R 8502 R1 2 CM31 & CM37 CHRONOTHERMS INSTALLATION LOCATION The CM31 or CM37 Chronotherm is the temperature control element in the heating 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 Chronotherm near sources of heat (radiators, hot air vents, TV or lights), near doors or windows, or in direct sunlight. MOUNTING CM31 and CM37 can be mounted directly on the wall surface or on an electrical wallbox. Mounting screws are supplied for both alternatives. WIRING CM31 and CM37 are designed for fixed wiring only and must be installed in accordance with latest l. E. E. Ensure the wiring connections to the supply are via a fuse rated at 8 amps (max) and a Class "A" switch (having contact separation of at least 3 mm in all poles). IMPORTANT 1. Disconnect the power supply before beginning installation WIRING Direct burner control Combi boiler control Valve actuator control CM31/ CM37 CM31/ CM37 CM31/ CM37 COMBI BOILER 3 EN0R 8502 R1 CM31 & CM37 CHRONOTHERMS Zone valve control (i) CM31/ CM37 Zone valve control (ii) Zone valve control (iii) CM31/ CM37 CM31/ CM37 Electric Heating Systems Systems rated above 8 A resistive (1. 75 kW) should be controlled via a contactor. Systems rated below 8 A can be switched directly by the CM31 or CM37 relay. [. . . ] Philips V275LA2) is installed across the contactor coil to suppress interference from voltage spikes. CM31/ CM37 Electric heating control CM31/ CM37 1. 5kW HEATER 20 Amp contactor 4. 0 kW HEATER Honeywell Control Systems Limited Newhouse Industrial Estate Motherwell ML1 5SB United Kingdom http://europe. hbc. honeywell. com EN0R 8502 R1 [. . . ]