10TEST RUN
Before test run
Confirm that the valve of the refrigerate pipe of the outdoor unit is OPEN.
•Before turning on the power, confirm that the resistance between the terminal block of power supply and the earth is more than 1MΩ using a 500V megohmmeter.
Do not run the unit if it is less than 1MΩ.
CAUTION
•Turn on the power and turn on the case heater of the compressor.
To save the compressor when it is activated, leave the power on for more than 12 hours.
Methods of test run
◆When executing a test run using a
remote controller
Operate the system normally to check the running condition using the wired remote controller. Follow the instructions in the supplied owner’s manual when operating the unit.
If you use a wireless remote controller for operations, follow the instructions in the installation manual supplied with the indoor unit.
To execute a test run forcibly under the condition that the thermostat automatically turns the unit off due to the indoor temperature, follow the procedure below.
The forcible test run will automatically stop after 60 minutes to prevent continuous forcible running and return to normal running.
CAUTION
Do not use forcible running except for a test run as it overloads the unit.
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TEMP. | ON / OFF | 2, 4 |
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TIMER SET |
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TIME |
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RESET TEST SET CL |
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1 | Push and hold the TEST button for more than 4 | ||||
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Push the | ON / OFF button. | ||||
3 | Push the | MODE button to switch the running | |||
mode to COOL or HEAT.
NOTE
•Do not run the unit in any mode other than COOL or HEAT.
•You cannot change the temperature setting during the test run.
•Errors are detected as usual.
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Push the ON / OFF button to stop running | ||||
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| The indication on the LCD display returns to | |||
5 | the status of procedure 1. | |||
Push the TEST button to exit the trial mode. | ||||
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◆When executing a test run using the interface P.C. board on the
outdoor unit
You can execute a test run by operating switches on the interface P.C. board of the header outdoor unit.
“Individual trial”, which tests each indoor unit separately, and “corrective trial”, which tests all the indoor units connected, are available.
<Individual test operation>
▼Starting operation
1 Set the running mode to “COOL” or “HEAT” on the remote controller of the indoor unit to be tested.
(The unit will run in the current mode unless you set the mode otherwise.)
[A][B]
[U1] | [ | ] |
2 Set the rotary switches on the interface P.C. board of the header outdoor unit: SW01 to [16], SW02 and SW03 to the address of the indoor unit to be tested.
SW02 | SW03 | Indoor unit address | |
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1 to 16 | 1 | 1 to 16 | Set number of SW02 |
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1 to 16 | 2 | 17 to 32 | Set number of SW02 + 16 |
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1 to 16 | 3 | 33 to 48 | Set number of SW02 + 32 |
1 to 16 | 4 | 49 to 64 | Set number of SW02 + 48 |
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[A][B]
[ | ] | [ | ] |
Address display of the corresponding indoor unit
3 Push and hold SW04 for more than 10 seconds.
[A][B]
[ | ] | [ | ] |
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Address display of the | [FF] is displayed for 5 | ||
corresponding indoor unit | seconds. |
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Installation Manual
NOTE
•The running mode follows the mode setting on the remote controller of the target indoor unit.
•You cannot change the temperature setting during the test run.
•Errors are detected as usual.
•The unit does not perform test run for 3 minutes after turning the power on or stopping running.
▼Finishing operation
1 Set the rotary switches on the interface P.C. board of the header unit back: SW01 to [1], SW02 to [1] and SW03 to [1].
[A][B]
[U1] | [ | ] |
