PTC thermostat QFR879

relay230VACrefrigeration plant

Temperature control systems for refrigerated cabinets and fridge desks. QFR879 Thermostat, originally projected for SILA FB DE RANIERI, is a device for refrigerated cabinets and fridge desks that can control temperature in a cold cell by measuring temperature with a PTC sensor and, if is installed another probe, can perform an automatic defrost. The motor function is enable with a major capacity SPST relay, so as to allow its direct use on 1 HP power. For higher capacity it is necessary a suitable external relay. Setting a required temperature can be performed, on all the measuring field, with a keyboard and a high luminosity LCD. The Thermostat has an internal algorithm for linearization in order to guarantee a higher measuring precision of the temperature from PTC sensor in all the working field. KEY FEATURES The very low thickness (29mm) makes it the ideal product for installation in reduced spaces.