Chilled Water Models; Piping Considerations; Figure 29 Chilled Water General Arrangement - Upflow (Bu) - Emerson Liebert Challenger 3000 Installation Manual

6.0 C W
HILLED ATER
6.1

Piping Considerations

Manual shut-off valves should be installed at the supply and return lines to each unit. This will pro-
vide for routine service and emergency isolation of the unit.
Consideration of the minimum water temperature to be supplied from the chiller will determine if the
need exists to insulate supply and return lines. Insulation will prevent condensation on the supply
and return lines.
To provide for the emergency of water leaks and the consequences of sub-floor flooding, floor drains
should be provided with wet traps or a water detection system, such as a Liebert Liqui-tect, that is
installed near the base of the unit or below the elevated floor.

Figure 29 Chilled water general arrangement - Upflow (BU)

Chilled
Water
Return
Shutoff
Valves *
Hose
Bibs *
Chilled
Water
Return
Shutoff
Valves *
Hose
Bibs *
M
ODELS
Chilled
Water
Supply
Flow
Switch
(optional)
Chilled
Water
2-Way
Supply
Chilled
Water
Valve
*Components are not supplied by Liebert but
are recommended for proper circuit operation
and maintenance.
Valve
Actuator
A
3-Way
Chilled
AB
Water
Valve
B
Bleed
Valve
Valve
Actuator
2-WAY VALVE
FACTORY PIPING
FIELD PIPING
54

Chilled Water Models

Air
Flow
Bleed
Valve
Chilled
Water
Coil
3-WAY VALVE
Air
Flow
Chilled
Water
Coil
SL-11899
Pg. 5