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Installation Procedure
Step 14 Performing final check and
trial operation
1 Check the power supply between the outdoor unit and
the auxiliary circuit breaker.
• 1 phase power supply : L, N
2 Check the indoor unit.
a Check that you have connected the power and
communication cables correctly. (If the power
cable and communication cables one mixed up or
connected incorrectly, the PCB will be damaged.)
b Check that the thermistor sensor, drain pump/
hose, and display are connected correctly.
3 Press K1 or K2 on the outdoor unit PCB to run the test
mode and stop.
Key
Push type
1st
Heating test mode
K1
Short
2nd
3rd
End Key operation
1st
2nd
3rd
4th
5th
K2
Short
6th
7th
8th
K3
Short
1st
22
English
DB68-11579A-00_IM_RAC oudoor_AA_EN_.indd 22
DB68-11579A-00_IM_RAC oudoor_AA_EN_.indd 22
Display
Mode
SEG 1 SEG 2 SEG 3 SEG 4
Defrost test
¹⁾
mode
Cooling test
mode
Inverter check
Pump down
Unusal
Inverter Fault
Detection
²⁾
(Comp#1)
Auto trial
operation
³⁾
Auto check
(Install
commissioning
mode)
End Key
operation
Reset
Release Eco
mode
¹⁾
Defrost test mode
Condition 1: The outdoor temperature is below 10°C.
Condition 2: All the temperature conditions should meet
the defrost conditions.
²⁾
Indication on the display and action to take when an
inverter fault is detected
SEG1
SEG2
Fault
detection is
in progress
OK
NG
Check
Going
into fault
detection
mode failed
³⁾ Auto check (Installation commissioning mode)
To ensure normal operation of the product, first make
sure to complete auto check. See step 15.
4 After 12 minutes operation check discharged air
temperature of indoor unit
• Cooling mode (indoor unit check) → Inlet air temp.
- Outlet air temp.: From 50℉(10℃) to 53.6℉(12℃)
• Heating mode (indoor unit check) → Outlet air
temp. - Inlet air temp.: 51.8℉(11℃) to 57.2℉(14℃)
• In heating mode, the indoor fan motor can remain off
to avoid cold air blown into air-conditioned space.
5 How to reset the power supply of the outdoor unit and
deactivate the eco mode (standby mode):
• Press K3 button over 1 sec to reset the power
supply of the outdoor unit and deactivate the eco
mode (standby mode).
※ Eco mode : Standby for minimizing power consumption
Action to
SEG3
SEG4
take
-
-
PBA defect:
Replace the
PBA
Manual
inspection
is required
Try fault
detection
again
2022-01-12 오후 1:37:53
2022-01-12 오후 1:37:53
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