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Vertiv I Liebert LPC I User Manual
Figure 2-21 Connecting the ball valves of the discharge and liquid pipe of the indoor unit
Notes, Warning, and Instruction labels are pasted on the base and side panel close to the ball
valve.
• Wrap the ball valves with a wet cloth before welding to prevent the label from getting
burned during the welding operation.
• Connect the discharge pipe and liquid pipe of the indoor unit according to the
instructions laid down in the label.
• Horizontal sections of the discharge pipe should be tilted downwards with a slope of
at least 1:200 (5mm down for each 1m run). The discharged pipes should be
insulated in the conditioned space (including under a raised floor).
The system piping should not be exposed for more than 15 minutes. Longer
period of exposure may lead to the compressor refrigeration oil being
adversely affected by moisture, which can be detrimental to the life of the key
components and stability of the system.
2.9.4 Installing the pipe extension kit
• If the length of the one-way pipe exceeds 30m or the vertical distance between the
indoor unit and outdoor unit exceeds the values in the table 2.7, consult Vertiv Co. for
the installation.
• The recommended pipe sizes are equivalent lengths that consider the resistance of
the bends.
The table 3.7 shows the equivalent length for partial components, and before installation, the
sizes mentioned in the table must be taken into account and checked keeping in mind the
site conditions.
Table 2.7
• Vertical distance between the Indoor and Outdoor unit
Positioning of the Outdoor Unit Height
Outdoor unit is higher than the Indoor unit Maximum: + 30m
Outdoor unit is lower than the indoor unit Minimum: - 8m
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