Position of the
Condenser
Distance
Height between
evaporator and
condenser m
(ft)
Condenser
placed higher
than evaporator
Maximum: 30 (98.4)
Condenser
placed lower
than evaporator
Maximum: -8 (-26.2)
Table 5.1 Vertical Distance between Condenser and Evaporator
5.2 Connecting Drainage Pipes
The water from the humidifier and the condensate water from the coil accumulate in the drain pan. The water in the drain
pan is drained through the top or bottom of the unit.
5.2.1 Top Connection
A pipe has been pre-installed between the pump and the drainage copper pipe. The top end of the drainage copper pipe
has been routed through the Condensate Pump outlet on the top plate. Connect the top end to your drainage system using
a soft pipe.
5.2.2 Bottom Connection
To connect condensate drainage pipes from the bottom:
1.
Open the rear door and remove filters. For details on removing filters, see
2.
Unscrew the connector between the soft pipe and the drainage copper pipe. Route the soft pipe through the
Condensate Pump outlet on the base plate to your drainage system.
3.
A pipe has been pre-installed from the drain pan. Route the pipe through the Gravity Drain outlet on the base
plate. 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.
5.3 Connecting Water Supply for Humidifier
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).
NOTE: The cylinder in the humidifier can be used for water with conductivity 300-1250
µ
S/cm. The water should not
contain insoluble impurities that can be observed by eyes.
5 Piping and Refrigeration Connections
37
Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual