Installation Manual 73
ENGLISH
Test Run
Refrigerant Auto Charging Function
This function charges appropriate amount of refrigerant automatically through cycle operation.
It can be used when refrigerant amount Isn't certain because of SVC and leakage.
Wait for 3 min. after power reset
Start
Main PCB
SW01S
Set the Dip S/W.
Refrigerant Auto Changing : 1,2,7 ON
Main PCB
SW01B
SW02B
Press the black button on main PCB.
Is it necessary to
charge refrigerant?
Press the black button for 2 sec. after turning off
all of dip S/W.
Yes
No
Press the black button on main PCB.
( Press until ‘508’ is displayed )
Main PCB
SW01V
IDU runs with cooling mode In designated order.
Main PCB
SW01V
Press the black button
IDU and ODU are turned off when Auto Charging
is completed. Close the valve.
Press the black button
*1)
Refrigerant Auto
Charging Process
Main PCB
SW01V
Completed.
*2)
Note
1. After installing the refrigerant charging
device as shown below in figure,
open the valve.
2. In case air temperature is out of guaranteed
temperature, it may end without performing
auto charging.
3. Refrigerant Charging Time may change
according to the charging amount.
(Refrigerant Charging Time : about 1.5 min/lb)
Summary of Contents for ARUB290DT2
Page 90: ...90 Outdoor Unit ...
