Test Run
 Page 31 
Before Test Run
A test run must be performed after the entire 
system has been completely installed. Confirm 
the following points before performing the test: 
 
a) The indoor and outdoor units are properly 
installed.
b) Piping and wiring are properly connected.
c) Ensure that there are no obstacles near the 
inlet and outlet of the unit that might cause 
poor performance or product malfunction.   
d) The refrigeration system does not leak. 
e) The drainage system is unimpeded and 
draining to a safe location. 
f) The heating insulation is properly installed.
The grounding wires are properly connected.
g)
h) The length of the piping and the added 
refrigerant stow capacity have been 
recorded. 
i) The power voltage is the correct voltage 
for the air conditioner. 
 CAUTION
Failure to perform the test run may result in unit 
damage, property damage or personal injury. 
Test Run Instructions
1. Open both the liquid and gas stop valves. 
2. Turn on the main power switch and allow the 
unit to warm up.  
3. Set the air conditioner to COOL mode.
4. For the Indoor Unit
a. Ensure the remote control and its buttons 
work properly.  
b. Ensure the louvers move properly and can 
be changed using the remote control. 
c. Double check to see if the room 
temperature is being registered correctly. 
d. Ensure the indicators on the remote 
control and the display panel on the indoor 
unit work properly. 
e. Ensure the manual buttons on the indoor 
unit works properly. 
f. Check to see that the drainage system is 
unimpeded and draining smoothly. 
g. Ensure there is no vibration or abnormal 
noise during operation. 
5. For the Outdoor Unit
a. Check to see if the refrigeration system is 
leaking. 
b. Make sure there is no vibration or 
abnormal noise during operation. 
c. Ensure the wind, noise, and water 
generated by the unit do not disturb your 
neighbors or pose a safety hazard.
6. Drainage Test
a. Ensure the drainpipe flows smoothly. New 
buildings should perform this test before 
finishing the ceiling. 
b. Remove the test cover. Add 2,000ml of 
water to the tank through the attached 
tube. 
c. Turn on the main power switch and run 
the air conditioner in COOL mode.  
d. Listen to the sound of the drain pump to 
see if it makes any unusual noises.  
e. Check to see that the water is discharged. 
It may take up to one minute before the 
unit begins to drain depending on the 
drainpipe.  
f. Make sure that there are no leaks in any of 
the piping. 
g. Stop the air conditioner. Turn o the main 
power switch and reinstall the test cover.  
NOTE: If the unit malfunctions or does not 
operate according to your expectations, please 
refer to the Troubleshooting section of the 
Owner’s Manual before calling customer service. 
Test Run
11