Airwell AWAU-YCVFD224-H13, Руководство по установке

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Installation procedure
Because the unit is with refrigerant R410A, the below issues should be paid attention:
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gauge manifold and charging hose.
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adapter.
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Turn the liquid pipe with hexangular spanner
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D. Check valve operation
E. Additional refrigerant charging
Open/close method:
Tighten torque as the table below:
Tighten torque N·m
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For gas pipe 8~9 22~27 8~10
For liquid pipe 5~6 13~16 8~10
Charge the additional refrigerant as liquid state with the gauge.
If the additional refrigerant can not be charged totally when the outdoor stops, charge it at the
trial mode.
If the unit runs for a long period in the state of lack of refrigerant, compressor will occur failure.
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The unit is charged only part of the refrigerant at the factory, also need additional refrigerant at
the installation site.
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W3=actual length of liquid pipe×additional amount per meter liquid pipe=
L1×0.35+L2×0.25+L3×0.17+L4×0.11+L5×0.054+L6×0.022
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