Mitsubishi Electric City Multi CMB-WP108V-G, Service Manual, Page: 105 / 301

[
VII
Control ]
- 96 - HWE1113B GB
[2] Controlling the Outdoor Unit
Initial Control
-1- Initial Control
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When the power is turned on, the initial processing of the microcomputer is given top priority.
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During the initial processing, control processing of the operation signal is suspended. (The control processing is resumed after
the initial processing is completed. Initial processing involves data processing in the microcomputer and initial setting of each
of the LEV opening. This process will take up to 5 minutes.)
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During the initial processing, the LED monitor on the outdoor unit's control board displays S/W version -> refrigerant type
-> heat pump -> cooling only and capacity -> and communication address in turn every second.
Control at Start-up
-2- Control at Start-up
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The upper limit of frequency during the first 3 minutes of the operation is 50 Hz.
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When the power is turned on, normal operation will start after the initial start-up mode (to be described later) has been com-
pleted (with a restriction on the frequency).