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Water Connections
29 Liebert
®
CRV
™
7.0 WATER CONNECTIONS
7.1 Water Connections—Supply Humidifier and Drain Water, All Models
Units with a condensate pump and humidifier are preset to be connected from the top. If floor
connections are used, the water lines can be intercepted at the following points:
Figure 19 Water connection points, bottom entry
• Condensate drain without pump:
• Use tubing rated to carry water up to 212°F (100°C) copper, PVC or flexible polythene tubing.
• Allow a 2% gradient toward the drain.
• Drain is trapped internally. Do not trap the drain external to the equipment.
• Fill the drain trap with water.
• Humidifier (optional): See Appendix A - Humidifier.
Table 16 Water connection options
Liebert CRV Option Top Connections Bottom Connections
Condensate Pump
and Humidifier
Available Available
Condensate Pump
and No Humidifier
Available Available
No Condensate Pump
and No Humidifier
Not Available Available
Table 17 Volume of CRV internal water circuits
Model Volume
CR020RW 4.8 liters, 1.27 gallons
CR035RW 5.7 liters, 1.51 gallons
CR040RC 17.6 liters, 4.65 gallons
Condensate
Pump Drain
Humidifier Water Supply