DEVIreg™ 531 7. Controls The DEVIreg™ 531 is a simple electronic thermostat with a 2-pole switch, using a built-in room sensor to measure and control the desired room temperature. It can be either flush- mounted or surface-mounted. The thermostat has a dial for adjusting the temperature setting with a scale from to 35. Furthermore, the thermostat has an LED indicating the current mode (heating, standby or fault). Benefits: • 2-pole safety breaker • Low standby consumption • Sensor failure monitoring • LED indication for fault • Frost protection Standard compliance: • EN/IEC 60730-1 (general) and EN/IEC 60730-2-9 (thermostat) Approvals: k H B d Type Value Operation voltage 220 V- 240V~ 50/60 Hz Standby power consumption max. 0.25 W Relay: Resistive load Inductive load Max 15A / 3450W @ 230V Cos Φ = 0.3 max. 1A Sensing unit NTC 15 kOhm at 25° C Sensing values 0° C 25° C 50° C 42 kOhm 15 kOhm 6 kOhm Hysteresis ± 0.2° C Ambient temperature -10° C. to +30° C Frost protection 5° C - Temperature range 5-35°C with room sensor only Cable specification max 1 x 4 mm 2 or 2 x 2,5 mm 2 Ball pressure test temperature 75° C Pollution degree 2 (domestic use) Controller type 1 C Storage temperature -20° C to +65°C IP class 31 Protection class Class II - Dimensions (H/W/D) 85 mm x 85 mm x 36 mm Weight 90 g Types Data Sheet DEVI Heating Systems Ltd 6C Dallan Place, Rosedale 0632 PO Box 101-274 North Shore, Auckland 0745 Ph 09 415 7250 Fx 09 415 7512 DEVI Heating Systems Ltd (H/O) 36B Sonter Road, Wigram 8042 PO Box 8582 Riccarton, Christchurch 8440 Ph 03 378 0070 Fx 03 378 0067 IP31 -10T30 D531 Mains 220-240V~ Max. Load 15 (1) A N L N LOAD L LOAD the heating cable must be c NOTE The Earth Screen of the heating cable must be connected to the earth conductor of the Power Supply using a separate connector. Code No. Name Description 01-140F1034 DEVIreg™531 Flush Mounted Manual Room Air temperature sensing thermostat (Supplied for fitting to a Euro Flush Box) Accessory 08-AP Adapter Plate Adapter Plate to enable fitting to a Standard NZ Flush Box 08-1547 Euro Box (Metal) Euro Flush box for wall mounting thermostat as supplied 08-1548 Euro Box (Plastic) Euro Flush box for wall mounting thermostat as supplied Euro Box NZ flush box Adapter Plate Metal Plastic