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Refrigerant adjustment method
Note 2 , Ensure that no refrigerant is released into the
atmosphere
Note 1, Operated using outdoor unit DIP SW3-1 and 3-2.
Note 3 , Always charge the system with liquid
refrigerant, if the system is charged with
gas the composition will change and
capacity will be reduced
Wait for 30minutes of
Note 1
compressor operation
= Yes
= No
Note 4 , K = Degrees Kelvin
273K = 0°C
Wait 5minutes before making next judgment.
Wait 5minutes before making next judgment.
Wait 5minutes before making next judgment
Start
All indoor units are run in
test cooling mode
Minimum of
30minutes
continuous
operation
TH1 equal or
less than
115°C
Add a small amount of
refrigerant to the low
pressure service port.
Power supply to outdoor unit
has been on for 8 hours
or
30minutes of compressor running
and a stable compressor
frequency.
Tc-TH5 is less than or
equal to 10K and
greater than or equal
to 3K
TH1 equal or less
than 110°C
Tc-TH7 is greater
than or equal to
20K
Tc-TH5 is less
than 3K
Add asmall amount of
refrigerant at the low pressure
service port.
Add a small amount of
refrigerant at low pressure
service port.
Add a small amount of
refrigerant at low pressure
service port.
Remove a small amount of
refrigerant at lowpressure
service port.
System has the correct
amount of refrigerant
FINISH
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