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57
English
Installation Procedure
Step 14 Evacuating the air
1 Connect the manifold gauge to a vacuum pump.
2 Purge the air from the system using the vacuum pump for
about 30 minutes.
• Make sure that pressure gauge shows -0.1006 Mpa
after about 30 minutes.
• Use a vacuum pump that is at least 140 ℓ/min in
capacity.
• Make sure that vacuuming timing is longer when
the piping gets longer.
• Pressure will not drop even after 5 minutes of
vacuuming when there is moisture within the pipe.
In this case, apply nitrogen gas again, and then
purge the air again.
Step 15 Charging the refrigerant
1 Measure the quantity of refrigerant depending on the
length of the liquid side pipe.
NOTE
• When the pipe length exceeds the standard pipe length
of 5 m, charge refrigerant according to the increased
length. Do not charge refrigerant by assuming the
quantity through the pressure gauge. When the pipe
length is shorter than the standard, you do not need to
charge refrigerant.
Model name
Refrigerant amount
Standard
(less 5m)
A
dditiona
l
(over 5m)
g g/m
AC030BXPDKC 2000 10
AC036BXPDKC 2600 30
AC048BXPDKC
AC048BXPDNC
2900 30
A
C054BXPDNC 3800 30
Outdoor unit
Manifold gauge
High pressure
side
Low pressure side
Ref.
Vacuum
pump
(Scale)
Liquid side service valve
Indoor unit
Gas side service valve
Open the manifold gauge valve connected to the liquid service
valve and add refrigerant to reach the fixed quantity noting
the scale.
NOTE
• If you cannot add refrigerant when the operation of the
outdoor unit is stopped, open the gas and liquid service
valves and add remaining refrigerant by pressing the
cooling trial operation button.
• After charging, completely open the spindles of the
both the gas and liquid side service valves by rotating
them anti-clockwise. (Do not press them further if the
spindle hits the stopper.)
• Fasten the caps of the service valves for the gas and
liquid pipes including the cap nut of the charging port.
– There may be slight refrigerant leakage when you
open the spindle with a wrench. This is not a failure
of the product.
– Use a wrench that can apply the appropriate force.
Tightening torque for body cap
(Refer to the table)
Spindle
Charging core
Tightening torque for charging port cap (Refer to the table)
R-22: Thread of the screw - 7/16-2OUNF
R-410A: Thread of the screw -1/2-2OUNF
DB68-11731A-02_IBIM_PAC Mirage Cooling Only_TC_EN_.indd 57DB68-11731A-02_IBIM_PAC Mirage Cooling Only_TC_EN_.indd 57 2023-07-19 오전 9:52:212023-07-19 오전 9:52:21
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