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ENGLISH
How to put the refrigerant into the refrigerant container before pump down operation
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When the amount of refrigerant charged in the system exceeds maximum receptive capacity, collect the refrigerant into
the refrigerant container at first and then perform the pump down .
X
X
Prepare the exclusive refrigerant container that can be recharged, scale, and manifold gage that can be recharged .
X
X
Check the current amount of refrigerant within the system .
X
X
After connecting the refrigerant container to an outdoor unit, operate 50% of all indoor units as cooling mode .
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X
Check the pressure of high pressure side for manifold gage after 10 minutes from cooling operation . When the pressure
of high pressure side is above 2 .9 MPa (gauge pressure), 420 .61 psig decrease the number of operating indoor unit and
make the pressure below 2 .9 MPa (gauge pressure), 420 .61 psig .
X
X
After checking that the pressure of high pressure side went below 2 .9 MPa (gauge pressure), 420 .61 psig, open the
manifold gage side valve(2) that is connected to the liquid pipe and refrigerant container valve . Then run the refrigerant
from liquid pipe to refrigerant container .
X
X
Check whether the proper amount of refrigerant are put into the container using a scale, turn off the valve and remove
the manifold gage .
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X
The amount of refrigerant that can be put into the refrigerant container should be about 50% of all refrigerant of the
whole system .
X
X
Do not collect too much refrigerant in one refrigerant container .
Gas side
Scale
Liquid side
Manifold gage
Service valve
Outdoor unit
R410A
Refrigerant
container valve
Valve(2)
Valve(1)
DVM S Eco_IM_03408A-05_EN.indd 43
2016-11-11 오후 1:27:59
