22
Inverter Compressor (cont.)
• 3°F to 5°F above refrigerator set point – medium speed.
• 5.5°F to 7°F above refrigerator set point – high speed.
Note:
The compressor will run at medium speed if the freezer temperature is
20°F or more above the set point.
The use of 3-phase power eliminates the need for the relay, capacitor, and
individual start and run windings; therefore, the start, run, and common pins
found on conventional compressors are not applicable on this 3-phase model.
Compressor pin functions are identical and compressor lead wire configuration
is of no importance.
A resistance of 9 to 11 ohms should be read between
any 2 of the 3 pins.
Should an open occur in the compressor winding or should
one of the compressor lead wires become open or disconnected, the inverter
will stop voltage output to the compressor.
High compressor torque enables the compressor to start against high pressure in
the sealed system. When power has been disconnected from an operating unit,
the high torque will enable the compressor to start immediately upon power
restoration.
mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. January 2008