Haier 1U71S2SS5FA - Charging Refrigerant

18
INFORMATION
After opening the stop valve, it is possible that
the pressure in the refrigerant piping does not
rise. This migeh be caused by e.g. the closed
state of the expansion valve in the outdoor unit
circuit, but does not present any problem for
correct operation of the unit.
9. Charging refrigerant
9.1 Important information regarding the
refrigerant used
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covered by the Kyoto Protocol. Do not vent gases into
the atmopsphere.
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vacuum pressure of 500 microns and hold for 15 minutes.
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additional refrigerant to suit your line length; UHIHU
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When servicing the unit requires the refrigerant
system to be opened, treatment and evacuation
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leak test and vacuum drying.
CAUTION
When charging a system, care shall be taken
that its maximum permissible charge is never
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WARNING
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DANGER
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This unit requires additional charging of refrigerant
according to the length of refrigerant piping connected
at the site.
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Make sure to charge the refrigerant in liquid state to
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composition changes if charged in its gaseous state
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be assured.
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has a suphon attached or not and position the
cylinder accordingly.
Fill using a
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siphon attached
Charge the liquid
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cylinder in upright
position.
Fill using a cylinder
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attached Charge the
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On this model it is not necessary to charge additionally if
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NOTICE
Berore recharging, make sure to execute vacuum
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To do so, use the internal service port of the unit.
Do not use the service ports located on the stop
valve, since vacuum drying can not be performed
properly from these ports.
Outdoor units have 1 port on the piping. It is
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amount of refrigerant.
WARNING
Some sections ofthe refrigerant circuit may
be isolated from other sections caused by
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The refrigerant circuit therefore features additional
service ports for vacuuming, pressure relief or
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no pressure remaining inside the unit. Internal
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opened. The location is depending on mode type.