This range of thermostats is aimed primarily at the heating and air conditioning market, where there is a demand for enhanced functionality. All models feature different combinations of supplementary function switches which are accessible to the user.
RET230 LS: This thermostat, which can be used in either heating or cooling systems, incorporates a manual switch which allows the thermostat output to be switched off.
RET230 C3: Designed for use with cooling only fan coil units, the RET230 C3 incorporates a combined system isolation switch and Fan Auto/Fan Continuous switch. The latter allows the user to decide if the fan should run continuously or only when there is a demand for cooling. A second three position switch allows the user to select one of three fan speed settings.
RET230 C02: Designed for use in two-pipe changeover fan coil unit systems, the RET230 C02 incorporates a manual Heating/Cooling (Winter/Summer) switch which allows the thermostat to operate as a cooling thermostat in the summer and a heating thermostat in the winter. A second two position switch allows the user to turn the thermostat output off if so desired.
RET230C03: Designed for use in two-pipe changeover fan coil unit systems, the RET230 C03 incorporates a manual Heating/Off/ Cooling (Winter/Off/Summer) switch which allows the thermostat to operate as a cooling thermostat in the summer and a heating thermostat in the winter. A second three position switch allows the user to select one of three fan speed settings.