9TTK-SVN001-EN
Additional Charge
Refrigerant suitable for a tube
length of 3.5 to 7.5 meters is
charged in the outdoor unit at the
factory. When the tube is longer
than 7.5 m, additional charging is
necessary. For the additional
amount, using the following table
for recommended amounts:
Table 3 - Additional Charge
Piping sizes per each additional
meter of
Liquid - Suction interconnecting line
length
1/4" - 3/8" 25 Grams / Meter
1/4" - 1/2" 26 Grams / Meter
3/8" - 5/8" 59 Grams / Meter
Caution
• FREON GAS “R22” ONLY.
• Always evacuate air from the
tubing before adding
refrigerant.
• Add refrigerant through the
charging port of liquid line
valve after the completion of
evacuation step 5.
• The refrigerant provided by
the manufacturer meets all
the requirements of our units.
When using recycled or
reprocessed refrigerant, it is
advisable to ensure its quality
is equivalent to that of a new
refrigerant. For this, it is
necessary to have a precise
analysis made by a
specialized laboratory. If this
condition is not respected,
the manufacturer’s warranty
could be cancelled.
Gas Leakage Inspection
After charging with refrigerant,
check the joints for gas leakage
with gas leak detector or a soap
bubble solution (Figure 11).
Soap
Figure 10
To the indoor unit
Cap
Liquid line
Suction line
To the indoor unit
Cap
Pressure
tap
Close
Open
Hex
Wrench
Close
Open
Hex
Wrench
Liquid line
Pressure
tap
Suction line
Leak detection
Soap
Figure 11
Layout 14/1/03, 10:16 AM9
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