Additional Charge; Gas Leakage Inspection - Trane TTK Series TTK 509 PB Installation Manual

To the indoor unit
Liquid line
To the indoor unit
Pressure
tap
Suction line

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
TTK-SVN001-EN
Layout
Black
Cap
Liquid line
Cap
Pressure
tap
Suction line
Figure 10
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.
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Gas Leakage Inspection

Hex After charging with refrigerant,
Close
Wrench
check the joints for gas leakage
Open
with gas leak detector or a soap
bubble solution (Figure 11).
Leak detection
Soap
Hex
Close
Wrench
Open
Figure 11
14/1/03, 10:16 AM
Soap
9