Fig. 4: Circulation thermostat with refrigerating machine, rear view
1 Rotary knob for maximum temperature T
max
and release button
2
Pump connectors inflow OUTLET and return INLET
3 Overflow and ventilation of expansion tank
4 Mains switch
5 Power supply
6 Handle
7 Rating label
8 Draining nozzle for connecting a hose
9
Connection sockets for refrigerant inlet IN and refrigerant outlet OUT
Back
Fig. 5: Nitrogen connection RP 290 E
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