17
Tubing
INSTALLATION
Interconnecting Tubing (cont�)
Figure 5
Insulated liquid and
sucon line
TXV or EEV at indoor
eva
orator
Reference Table 2
for elevaon
limitaons
Verify sub-cooling prior
to throlin
device
Outdoor Unit Above Indoor Unit
For applications that are considered to have a long
line set with the outdoor unit above the indoor unit
the following is required:
• TXV at the indoor unit
• Crankcase heater
• Start components maybe required depending
upon quality of voltage
• Insulated liquid and suction line
• Follow the proper line sizing, equivalent length,
charging requirements, and oil level adjustments
spelled out in this document and the outdoor
units I&O
• Verify adequate sub-cooling at the ID unit prior
to throttling device
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