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SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL
12. Electrical Connection
Door Switch
The unit can be switched on and of via a door contact switch. When delivered the door contact terminals are bridged on the
female connector. To connect the door contact switch, remove the bridge and connect door contact switch. The contact must
be closed when the cabinet door is closed.
13. Controller Programming
The cooling unit is intended to be used as a complementary accessory to larger industrial
equipment. The unit is used where heat needs to be dissipated from electrical control
cabinets or similar enclosures in order to protect heat sensitive components. It is not
intended for household use. The unit has two completely separate air circuits which
ensure that the clean cabinet air does not come into contact with the ambient air which
may well be dirty or polluted. Enclosure cooling units can dissipate large quantities of
heat from sealed enclosures such as electrical enclosures into the ambient air and at
the same time reduce the cabinet internal temperature to below that of the ambient air.
The unit can function without problems in extreme ambient conditions (e.g. dusty
and oily air) with a standard operating temperature ranging between +10°C and
+55°C. Units can be ordered with an additional electrical cabinet heater. For the
cooling capacities and evironmental ratings please refer to the type plate data.
The display shows the temperature in the range of -50°C to +150°C (-58°F to +302°F). The
temperature is displayed with resolution of tenths between -19.9°C and +99.9°C (-3.8°F to +211.8°F).
During programming, it shows the codes and values of the parameters. The display also
shows icons according to occurring events.
Controller
