Fujitsu FO2416RTJNAA, Руководство по установке

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4.4 Refrigerant Line Set Selection
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replacement units, a liquid line filter drier must be
installed and the line set must be properly sized.
Test the oil for acid. If it tests positive for acid, a
suction line filter drier is mandatory.
IMPORTANT:
When replacing an
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the line set or ensure that residual mineral oil is
drained from existing lines including oil trapped in
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4.4.1 Replacing Existing Systems
4.0 INSTALLATION
4.4.2 Line Set Length and Fitting Losses
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4.4.3 Liquid Line Selection
Table 1
Tubing
Refrigerant tubing is measured in terms of actual
length and equivalent length. Actual length is used
for refrigerant charge applications. Equivalent
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ent commonly used equivalent lengths.
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the expansion device of the indoor or outdoor coil.
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ing reasons:
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• Improperly selected liquid line size
• Absorption of heat prior to expansion device
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door unit and indoor coil
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• Measure the total amount of vertical separation
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• Measure the linear length of liquid line needed.
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length.
• Reference Table 2 to verify the calculated
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vertical separation and diameter of liquid line.