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REFRIGERANT GAS TANK
FLEXIBLE HOSE
HIGH PRESSURE GAUGE
MANIFOLD
LOW SIDE
PRESSURE GAUGE
GAS VALVE
REFRIGERANT PIPING
INDOOR UNIT
OUTDOOR UNIT
LIQUID VALVE
ADDITIONAL CHARGE
The refrigerant is pre-charged in the outdoor unit. If the
piping length is less than 5m, additional charge after
vacuuming is not necessary. When the piping length is more
than 5m, use the table below.
Additional charge operation
This operation must be done by using gas cylinder and a
precise weighing machine obligatorily. The additional charge
is top up into the outdoor unit by suction valve via service
port.
• Remove the service valve plug.
• Connect the low pressure manifold to the suction service
port, center manifold to the cylinder tank and close the
high pressure manifold (see figure below).
Purge all the flexible hose with refrigerant gas.
• Start the air conditioner unit.
• Open the gas cylinder and low pressure manifold valve.
• When the required refrigerant quantity is pumped in the
unit, close the low pressure manifold and the gas cylinder
valve.
• Disconnect the manometer and the gas cylinder. Place back
the service port cap.
Model 7m 10m 15m 20m
CC10C 30 75 – –
CC15C 30 75 – –
CC20C 30 75 150 –
CC25C 76 190 380 –
CC30C 100 250 500 750
CC40C 100 250 500 750
CC50C 100 250 500 750
CC60C 100 250 500 750
Cooling only unit
Additional charge in gram
Model 7m 10m 15m 20m
CC10CR 40 100 – –
CC15CR 40 100 – –
CC20CR 50 125 250 –
CC25CR 100 250 500 –
CC30CR 100 250 500 750
CC40CR 100 250 500 750
CC50CR 100 250 500 750
CC60CR 100 250 500 750
Heat pump unit
Additional charge in gram
Check refrigerant leak
Check with refrigerant detector whether there is a leak on
the flare type connection of the indoor unit and outdoor unit.
Hints: After operation for sometime, check if there is oil
traces, there is a leak.
CCC-0700 (01~16) ENG* 2/1/01, 10:42 AM13
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