Fujitsu AMUG24LMAS, Service Manual

Page: 162 / 200

3. Test
3-1. Test run
CAUTION
Always connect the power supply 12 hours prior to the start of the operation in order to protect the
compressor.
1. Indoor unit
a. Is the drain normal?
b. Is there any abnormal noise and vibration during operation?
2. Outdoor unit
a. Is there any abnormal noise and vibration during operation?
b. Will noise, wind, or drain water from the unit disturb the neighbors?
c. Is there any gas leakage?
• Do not operate the air conditioner in the test running state for a long time.
• For the operation method of the test run for indoor unit and central remote controller, refer to
the operating manual and perform operation check.
¢
Test run method
Be sure to temporarily disconnect the power supply or turn off the breaker before changing the
DIP switch settings.
1. Check the 3-way valves (both at the liquid side and gas side) are opened. Confirm that the
DIP switch SET1-2 is switched off.
2. Set the operation mode to “COOL” or “HEAT”. When switching the DIP switch SET1-1 be-
tween HEAT and COOL, disconnect the power supply or turn off the circuit breaker before-
hand.
ON
1 2 3 4
SET1
SET1-1
HEAT
COOL
• In the first test run, be sure to set the operation mode to “COOL”.
• The operation mode cannot be switched between “COOL” and “HEAT” during the test
run. To switch the operation mode between “COOL” and “HEAT”, stop the test run,
switch the operation mode, and then start the test run again.
3. Press "TEST RUN" switch for more than 3 seconds.
The POWER / MODE LED flashes once.
PUMP DOWN
1 W S
TEST RUN
SW1
F E D C
MONITOR
ERROR
B A
POWER
MODE
(1-blink)
3-1. Test run
- (05-14) -
3. Test
FIELD WORKING FIELD WORKING