Additional Refrigerant Charging - Haier MRV II Instruction Manual

12 Additional Refrigerant Charging

When the unit out of factory ,refrigerant charging amount is exclude
the refrigerant in the pipe , so after installation the piping, additional
refrigerant should be charged on site.
12.1 Connect the refrigerant tank, gauge manifold to high pressure and
low pressure stop valve via flexible hose in turn, open tank valve and pile
out the air in the pipe.
12.2 Additional charging amount should accord to the diameter and the
length of liquid pipe , final additional charging amount should be
marked on the outdoor nameplate.
12.3 Please must charge the additional refrigerant while weighing, forbid
to estimate according to current or voltage.
12.4 Additional refrigerant should be charged after evacuation or when
the system running in cooling mode.
12.5 Refrigerant should be charged into liquid pipe as liquid state ,if the
system is running in cooling mode , refrigerant should be gas state, or
compressor may be damaged.
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