
9-3. Checking the Indoor and Outdoor Units
(1) Checking the indoor unit
No. | Control | Check items (unit operation) |
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1 | Use the remote controller to operate the | • The rated voltage must be present between |
| unit in "TEST run" mode. To determine | • Connect a 5 k ohm resistor between |
| whether the mode is currently in | voltage at both ends is measured, approximately 12 to 15V DC must |
| "TEST run" mode, check the 4 indicator | be output and the multimeter pointer must bounce once every 8 |
| lamps on the unit. If all 4 are blinking, | seconds. |
| the current mode is "TEST run." | Or instead of measuring the voltage, you can insert an LED jig and |
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| check that the LED flickers once every 8 seconds. |
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If there are no problems with the above, then check the outdoor unit.
For the "Test run" procedure, refer to the Appendix B "Installation Instructions".
(2) Checking the outdoor unit
No. | Control | Check items (unit operation) | ||||
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1 | Apply the rated voltage between outdoor | • The control panel LED (red) must illuminate. | ||||
| unit terminals L and N. |
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2 | • The compressor and fan motor must all turn on. | |||||
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If there are no problems with the above, then check the indoor unit. | ||||||
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TEST/MV : Compresses time to 1/60th (accelerates operation by 60 times faster than normal).
(TEST)/MV | COM |
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