Installation Manual
– 36 –
EN
8
Test Run
Settings for hot water modules
After automatic addressing is completed, if there is hot water module in the system, 7-segment display will indicate
.
Please adjust the DIP switch as below, and slide SW09-bit4 to "ON" position.
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 1 MÙ using a 500 V megohmmeter.
Do not run the unit if it is less than 1 MÙ.
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.
/
SW06
SW07
SW09
SW10
SW11
SW12
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1
Push and hold the
button for more than 4 seconds. TEST appears on the LCD display and the unit
enters the test mode.
(TEST is indicated on the LCD display during the test run.)
2
Push the
button.
3
Push the
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.
4
Push the
button to stop running after finishing the test run.
The indication on the LCD display returns to the status of procedure 1.
5
Push the
button to exit the test mode.
1, 5
3
2, 4
ON / OFF
TEMP.
TIME
SET
CL
FILTER
RESET TEST
TIMER SET
TEST
TEST
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2FAN_IM_DB04307201-04_EN.book Page 36 Tuesday, December 17, 2019 6:34 PM
