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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
covered by the
Kyoto
the atmopsphere.
vacuum pressure of 500 microns and hold for 15 minutes.
32
32
additional refrigerant to suit your line length;
When servicing the unit requires the refrigerant
system to be opened, treatment and evacuation
leak test and vacuum drying.
CAUTION
When charging a system, care shall be taken
that its maximum permissible charge is never
WARNING
DANGER
Protocol. Do not vent gases into
Calculate
This unit requires additional charging of refrigerant
according to the length of refrigerant piping connected
at the site.
Make sure to charge the refrigerant in liquid state to
composition changes if charged in its gaseous state
be assured.
has a suphon attached or not and position the
cylinder accordingly.
Fill using a
siphon attached
Charge the liquid
cylinder in upright
position.
On this model it is not necessary to charge additionally if
NOTICE
Berore recharging, make sure to execute vacuum
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
amount of refrigerant.
WARNING
Some sections ofthe refrigerant circuit may
be isolated from other sections caused by
The refrigerant circuit therefore features additional
service ports for vacuuming, pressure relief or
no pressure remaining inside the unit. Internal
opened. The location is depending on mode type.
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32
Fill using a cylinder
attached Charge the
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