• The controller is used for temperature control refrigeration appliances in supermarkets
• With many predefined applications one unit will offer you many options. Flexibility has been planned both for new installations and for service in the refrigeration trade
The controller contains a temperature control where the signal can be received from one or two temperature sensors.
The thermostat sensors are either placed in the cold air flow after the evaporator, in the warm air flow just before the evaporator, or both. A setting will determine how great an influence the two signals are to have on the control.
A measurement of the defrost temperature can be obtained directly through the use of an S5 sensor or indirectly through the use of the S4 measurement. Four relays will cut the required functions in and out – the application determines which. The options are the following:
• Refrigeration (compressor or relay) • Fan
• Rail heat
• Fans for hotgas defrost
• Refrigeration 2 (compressor 2 or relay 2)