The Choice Frost Room is a mains voltage device designed to give automatic protection boilers and pipework as well the fabric of building. The thermostat should be fitted in the coldest areas of your property. It is ideal for places like; loft spaces, floor voids, garages, conservatories, garden sheds, meeting rooms, play areas. FEATURES Bi-Metalic temperature sensing elementSuitable for surface or switch box mounting-5 to 25°C setpoint rangeTamper resistant cover fitted with accelerator heater SPECIFICATIONS Power supply: 230 Vac, 50 HzTemperature control range: -5 to 25°CLoad rating (1-3): 10A / 250 VacAmbient Max: T50Protection rating: IP20Dimensions: 78mm x 78mm x 36mm WIRING 1 - Live In2 - Not Used3 - Live Out (call for heat)4 - Neutral The thermostat is provided with an accelerating resistance which must be connected in order to obtain the accurate performance. The terminal 4 has thus to be connected to the neutral. DOWNLOADS Choice FSTAT Datasheet [PDF] Choice FSTAT Instructions [PDF]