Chilled Water Models; Piping Considerations; Figure 19 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 Liqui-tect, that is installed
near the base of the unit or below the elevated floor.

Figure 19 Chilled water general arrangement - Upflow (BU)

Shutoff
Valves*
Hose
Bibs*
Chilled
Water
Return
Shutoff
Valves*
Hose Bibs *
M
ODELS
Chilled
Water
Supply
Chilled
Water
Return
Flow
Switch
(optional)
Chilled
Water
Supply
2-Way
Chilled
Water
Valve
*Components are not supplied by Liebert but
are recommended for proper circuit operation
and maintenance.
Valve
Actuator
A
3-Way
AB
Chilled
Water
B
Valve
Bleed
Valve
Valve
Actuator
SINGLE CIRCUIT SHOWN
FACTORY
PIPING
FIELD
PIPING
40

Chilled Water Models

Air
Flow
Bleed
Valve
Chilled
Water
Coil
3-WAY VALVE
Air
Flow
Chilled
Water
Coil
2-WAY VALVE
SL-11899 PG 5