Testing Operations - Samsung UH070CAV1 Installation Manual

Testing operations

1
Check the power supply between the outdoor unit and the auxiliary circuit
breaker.
Single phase power supply: L, N

2
Check the indoor unit.
2-1 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.)
2-2 Check the thermistor sensor, drain pump/hose, and display are
connected correctly.
3
Press K1 & K2 on the outdoor unit PCB the system will follow this sequence:
K1 push one start Heating test mode  K1 push two test mode stop

K2 push one start Cooling test mode  K2 push two test mode stop

4 After 12 minutes of stationary condition check each indoor unit air treatment :
C ooling mode(indoor unit check)Inlet air temp. - Outlet air temp. :

From 50°F(10°C) to 53.6°F(12°C)
H eating mode(indoor unit check)Outlet air temp. - Inlet air temp. :

From 51.8°F(11°C) to 57.2°F(14°C)
I n heating mode, the indoor fan motor can remain off to avoid cold air

blown into conditioned space.
Settings of PCB Display of the Outdoor unit
K1 K2
KEY
CHECK
MODE
Function
Number of
press times
Test operation at
1
2
K3 K4
RESET
DISPLAY
MODE
K1 K2
Test operation at
heating mode cooling mode
End End
Rotary
Switch
DIP
Switch
Note
 Rotary Switch must be adjusted to"0"position .
DIP Switch must be adjusted to "ON" position .
DIS 1
Display
ITEM NO.
K3
Reset
-
���� ����
���� ����
DIS 2
CURRENT DATA DISPLAY
K4
Displays Data
-
23
E-