3.
Take out the soft pipe from the accessories bag and connect it to the drainage tube. Then route the soft pipe
through the pump drainage outlet on the base plate to your drainage system.
Figure 5.9 Bottom Connection for Pump Drain
Item
Description
Item
Description
1
Rear door
4
Pump's drainage tube
2
Gravity drainage hole
5
Pump
3
Pump drainage hole and humidifier water inlet hole
4. Gravity drainage pipe has been pre-installed from the drain pan. Route the pipe through the gravity drainage
hole on the base plate and connect it to your drainage system. Wrap a drain trap under the drain pan.
NOTE: All water drainage pipes should resist heat higher than 90 °C (194 °F).
NOTE: Ensure at least a 2% gradient towards the drain.
NOTE: There must be a drain trap placed at least 200 mm (7.9 in.) below the drain tray. Fill the drain trap with water.
5.4 Connecting Water Supply for Humidifier (Only for CRC30)
NOTE: The connections must be sealed to prevent water leakage.
NOTE: The pressure of your water supply system should be within 100 kPa to 700 kPa (14.5 psig to 101.5 psig).
5.4.1 Top Connection
A soft pipe has been pre-installed between the humidifier and the humidifier supply copper pipe. Connect the top end of
the humidifier supply copper pipe (the inlet for humidifier connection on the top plate) to your water supply system. For the
location of the inlet for humidifier connection, see
The specification of the inlet for humidifier connector on the top plate is as follows:
Model
Threaded Connector
External Diameter mm (in.)
CRC30/CRC60
Rc 1/2"
12.7 (1/2)
Table 5.3 Inlet for Humidifier Connector Specification
5 Piping Connections
37
Vertiv™ Liebert® CRV CRC30 and CRC60 Chilled Water Cooling System User Manual
