15
Outdoor Unit
Installation Manual
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LED
Description
D800 D801 D802 D803 D804 D805
Check results
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Normal operation (no error)
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Trouble in unit A
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Trouble in unit B
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Trouble in unit C
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Trouble in unit D
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Trouble in unit E
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Trouble in units A and B
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Trouble in units A and C
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Trouble in units A and D
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Trouble in units A and E
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Trouble in units B and C
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Trouble in units B and D
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Trouble in units B and E
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Trouble in units C and D
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Trouble in units C and E
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Trouble in units D and E
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Trouble in units A, B, and C
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Trouble in units A, B, and D
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Trouble in units A, B, and E
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Trouble in units A, C, and D
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Trouble in units A, C, and E
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Trouble in units A, D, and E
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Trouble in units B, C, and D
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Trouble in units B, C, and E
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Trouble in units B, D, and E
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Trouble in units C, D, and E
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Trouble in units A, B, C, and D
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Trouble in units A, B, C, and E
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Trouble in units A, B, D, and E
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Trouble in units A, C, D, and E
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Trouble in units B, C, D, and E
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“Trouble in all units
Service valve stays closed”
• The D800 LED represents unit. A.
• The D801 LED represents unit. B.
• The D802 LED represents unit. C.
• The D803 LED represents unit. D.
• The D804 LED represents unit. E.
8. When you want to start over the operation of the SW801 and SW802,
press the SW801 and the SW802 at the same time for 5 sec. (The
procedure will set back to step 3.) However, do not execute the
operation during the check. If by any chance the check is stopped by the
operation, start over the check after turning off the power once.
9. Notes
• It sometimes takes about 30 minutes maximum for the check.
• During the check, the compressor and the fan of the outdoor/indoor unit
repeat ON/OFF.
• You cannot check wiring/piping when the external temperature is 5°C
or less. Also, there is a possibility to misjudge if the indoor temperature
becomes too low by cooling operation. In that case, execute the cooling
operation for per room and check if the connection is normal.
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Gas Leak Inspection
Refer to the “
■
Gas Leak Inspection” on page 11.
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Test run
1. If you perform the test run in summer, start running in the cooling mode
fi
rst to
decrease the temperature of the room, then run in the heating mode.
(Heating mode: Set the temperature to 30°C.)
• If you perform the test run in winter, start running in the heating mode
fi
rst
to increase the temperature of the room, then run in the cooling mode.
(Cooling mode: Set the temperature to 17°C.)
2. For the test run, be sure to satisfy the following conditions below:
- Perform the test run for each indoor unit respectively.
- Perform the test run for about 10 minutes in both the cooling mode and
the heating mode.
• You can perform the test run in the cooling/heating mode by utilizing the
thermo sensor of the indoor unit.
Cooling mode: Warm the thermo sensor using an appliance such as a
hair dryer.
Heating mode: Put a cold towel on the thermo sensor.
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Instructions for the Customers
• Explain to the customers the proper operation procedure and let them
operate the air conditioner along with the supplied instruction manual.
• When multiple indoor units are connected to the outdoor unit, the cooling
mode and the heating mode are not available at the same time.
When multiple indoor units are running at the same time, the operation mode
of the unit which starts running
fi
rst is applied to the other units.
• When you start running the indoor unit or change the operation mode, the
unit starts running after 3 minutes. This is due to the protection function of
the unit, not a malfunction.
• When the external temperature becomes low, the pre-heating of the
compressor starts to protect it. Keep the circuit breaker on for use.
The electricity consumption during pre-heating is about 100 W.
If the circuit breaker is turned off, the indoor unit may not start running for
about 11 minutes.
• Electronic expansion valves are used for the outdoor unit.
When you turn on the power, the outdoor unit starts clattering every 1 or
2 months. This clattering is not a malfunction, but occurs when the unit is
returning to the default setting for optimised control.
• While an indoor unit is running in the heating mode, the outdoor unit supplies
refrigerant to the other indoor units which are not running.
Therefore, noise may come from the other indoor units or the exterior of
them may become warm.
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6/13/2561 BE 4:18 PM
6/13/2561 BE 4:18 PM
