10
Charge Operation
This operation must be done by using a gas
cylinder and a precise weighing machine. The
additional charge is topped-up into the outdoor
unit using the suction valve via the service port.
•
Remove the service port cap.
•
Connect the low pressure side of the charging
gauge to the suction service port center of
the cylinder tank and close the high pressure
side of the gauge. Purge the air from the
service hose.
•
Start the air conditioner unit.
•
Open the gas cylinder and low pressure
charging valve.
•
When the required refrigerant quantity is
pumped into the unit, close the low pressure
side and the gas cylinder valve.
•
Disconnect the service hose from service
port. Put back the service port cap.
Suction
valve
Discharge
valve
Indoor Unit
Outdoor Unit
Liquid side
Gas side
Vacuum
pump
Open
Close
Close
Close
Hi
Low
Open
Open
Suction
valve
Discharge valve
Indoor Unit
Outdoor Unit
Liquid side
Gas side
Check
valve
Close
Hi
Low
Additional Charge
The refrigerant is pre-charged in the outdoor unit.
If the piping length is less than 7.5m, then
additional charge after vacuuming is not
necessary. If the piping length is more than 7.5m,
then use the additional charge valve as indicated
in the table.
Additional refrigerant charge [g] per
additional 1m length as tabulated
Indoor
WM10/15J
Outdoor
SL09/15C
Additional charge [g/m]
16
Example:
WM10J & SL09C with 12m piping length,
additional piping length is 4.5m. Thus,
Additional charge
= 4.5[m] x 16[g/m]
= 72.0[g]
INDICATOR LIGHTS
IR Signal Receiver
When an infrared remote control operating signal
has been transmitted, the signal receiver on the
indoor unit will respond as below to confirm
acceptance of the signal transmission.
ON to OFF
1 Long Beep
OFF to ON
2 Short Beep
Pump down/Cool force on
Others
1 Short Beep
Cooling Unit
The table shows the LED indicator lights for the
air conditioner unit under normal operation and
fault conditions.
The LED indicator lights are located at the right-
bottom of the air conditioner unit.
IR Receiver
LED Indicator Lights for Cooling Unit
IR Receiver
ON/OFF
Cool
Timer
Sleep
ON/OFF switch
