Liebert CR020 - Chilled Water Connections for Chilled Water Units

28 Chapter 5 Water Connections
Liebert.CRV Series Air Conditioner User Manual
5.4 Chilled Water Connections For Chilled Water (C) Units
The positions for chilled water connections are shown in Figure 5-5.
Top chilled water connections Rear bottom chilled water connections
Figure 5-5 Positions for chilled water connections
The chilled water circuit is shown in Figure 5-6, as described below:
 Use copper or steel (Mannesmann) tubing.
 Place the tubing on supporting saddles ①.
 Insulate both tubes using Armaflex insulation ②.
 Place shut-off ball valves ③ at the conditioner inlet and outlet to allow easy maintenance.
 It is useful to install a thermometer ④ and a manometer ⑤ at the conditioner inlet and outlet.
 Install a water drain tap ⑥ at the lowest point in the circuit.
 Fill the circuit with water/glycol.
Air
conditioner
①
②
③
④
⑤
⑥
Figure 5-6 Chilled water circuit