20■English
Trial Operation and Testing
After nishing the construction of refrigerant piping, drain piping, and electric wiring, conduct trial operation accordingly to protect
the unit.
1. Trial operation and testing
CAUTION
After test operation is completed, check the items mentioned “Items to be checked at time of delivery” (page 22).
If the interior nish work is not completed when the test operation is nished, for protection of the air conditioner, ask the user
not operate the air conditioner until the interior nish work is completed.
If the air conditioner is operated, the inside of the indoor units may be polluted by substances generated from the coating and
adhesives used for the interior nish work and cause water splash and leakage.
Trial operation should be carried out in either COOL or HEAT operation.
1-1. Measure the supply voltage and make sure that it is within the specied range.
1-2. In COOL operation, select the lowest programmable temperature;
in HEAT operation, select the highest programmable temperature.
1-3. Carry out the trial operation following the instructions in the operation manual
to ensure that all functions and parts, such as the movement of the louvers, are
working properly.
• To protect the air conditioner, restart operation is disabled for 3 minutes after the system has been turned off.
1-4.
After trial operation is complete, set the
temperature to a normal level (78°F to 82°F
(26°C to 28°C) in COOL operation, 68°F to
75°F (20°C to 24°C) in HEAT operation).
• When operating the air conditioner in COOL operation
in winter, or HEAT operation in summer, set it to the trial
operation mode using the following method.
Refer to
For wired remote controller
.
Refer to
For wireless remote controller
(page 21).
Basic screen
1)
2)
Cool
Return Clean the filter
Set to
Cool
68F
Press and hold Cancel
button for 4 seconds or
longer during backlight lit.
Service Settings
menu screen
3)
Setting
1/3
Service Settings
Test Operation
Maintenance Contact
Field Settings
Energy Saving Options
Prohibit Buttons
Min Setpoints Differential
Press Menu/OK button.
4)
Set temperature
80°F
Cool
Test Operation
Press On/Off button
(within 10 seconds).
5)
Set temperature
80°F
Cool
Test Operation
Press and hold Cancel
button for 4 seconds or
longer during backlight lit.
6)
Setting
1/3
Service Settings
Test Operation
Maintenance Contact
Field Settings
Energy Saving Options
Prohibit Buttons
Min Setpoints Differential
Press Menu/OK button.
Basic screen
For wired remote controller
1) Set to COOL or HEAT operation using the remote
controller.
2) Press and hold Cancel button for 4seconds or longer.
Service settings menu is displayed.
3) Select Test Operation in the service settings menu, and
press Menu/OK button. Basic screen returns and “Test
Operation” is displayed at the bottom.
4) Press On/Off button within 10seconds, and the test
operation starts.
Monitor the operation of the indoor unit for a minimum
of 10 minutes. During test operation, the indoor unit
will continue to cool/heat regardless of the temperature
setpoint and room temperature.
• In the case of above-mentioned procedures 3) and 4)
in reverse order, test operation can start as well.
5) Press and hold Cancel button for 4seconds or longer in
the basic screen.
Service settings menu is displayed.
6) Select Test Operation in the service settings menu, and
press Menu/OK button. Basic screen returns and normal
operation is conducted.
• Test operation will stop automatically after 15-30
minutes. To stop the operation, press On/Off button.
English
01_EN_3P674701-1B.indd 20 2022/06/02 10:06:29
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