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ENGLISH
Error contents about auto refrigerant charging function
: Temperature Range Error (In case that IDU or ODU is out of
range)
: System Unstable Error (In case, After 45 min operating the
system, it does not be stable)
CAUTION
• Guaranteed Temperature range(Error occurs out of guaranteed tem-
perature range)
IDU : 20~32°C
ODU : 10~38°C
• Set IDU wired remote controller temperature sensor setting as
'IDU'.
• Make certain that IDU doesn't run with thermo off mode during op-
eration.
!
CAUTION
• Request additional function setting to installer.
• In case of not using additional function, DIP switch off and reset.
• If RPM of outdoor unit fan is changed, capacity may be down.
!
CAUTION
• Request installer to set the function during installation.
• In case the function is not used, set the DIP switch OFF and reset
the power.
• If ODU RPM changes, cooling capacity may go down.
!
How to cope with Result of Refrigerant Checking
• If the temperature is not in guaranteed Temperature range, the sys-
tem will not execute Refrigerant checking and the system will be
OFF.
• Excess of Refrigerant(619)
After remove the 20% of calculated total refrigerant, recharge the
refrigerant by using Refrigerant Auto Charging Function.
• Scarcity of Refrigerant(629)
Charge the refrigerant by using Refrigerant Auto Charging Function.
• Impossible to Judge(639)
IF the system is not in order, check the other problem except refrig-
erant.
Night Silent Operation
In cooling mode, this function makes the ODU fan operate at low RPM
to reduce the fan noise of ODU at night which has low cooling load.
U3 Chassis (2 Fan Model)
Note 1)
DIP switch No.12+14 ON
Main PCB power reset
Setting the Fan Max. RPM
Setting complete
ODU
SW01B
ODU
SW01S
SW01V
SW02V
SW01S
SW02V
SW01V
SW01B
Setting RPM
U4 Chassis (1 Fan Model)
Step
Setting
Fan Max
RPM
Judgment
(hr)
Operation
(hr)
SW01V (Black)
SW02V (Red)
1
1 time
1 time
420
8
9
2
2 times
1 time
370
8
9
3
3 times
1 time
320
8
9
Step
Setting
Fan Max
RPM
Judgment
(hr)
Operation
(hr)
1
DIP S/W NO.3 ON
420
8
9
2
DIP S/W NO.5 ON
370
8
9
3
DIP S/W NO.3, NO.5 ON
320
8
9
h
Reset power after changing DIP S/W
Summary of Contents for ARUN40GS2A
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