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9-2. Checking the Outdoor System
9-2-1. Checking the outdoor unit
• Apply 220 V AC between terminals 1 and 2 on the
outdoor unit 3P terminal block.
• Of the connector T-RUN/TEST terminals, short-circuit
the T-RUN terminal to the COM terminal.
NOTE: If the above check items are okay, but the outdoor unit does not operate, there may be a faulty connection between
the indoor unit and the outdoor unit.
Control
No.
1
2
• The LED (red) on the control circuit board must
illuminate.
• The compressor and fan motor must turn ON.
(They turn ON a few seconds after the power is turned
ON.)
Check items (unit operation)
