Emerson 3000 installation manual Chilled Water Models

Chilled Water Models

6.0CHILLED WATER MODELS

6.1Piping Considerations

Manual shutoff valves should be installed at the supply and return lines to each unit. This will provide 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)

				Air
				Flow
			Bleed
			Valve
Chilled
Water
Supply				Chilled
Chilled	Valve			Water
				Coil
Water	Actuator
Return				3-WAY VALVE
Shutoff		A	3-Way
Valves *	AB
			Chilled
		Water
	B Valve
	Flow
	Switch		Air
	(optional)		Flow
Hose			Bleed
Bibs *
			Valve
Chilled		Valve
Water	2-Way	Actuator
Supply
Chilled	Chilled			Chilled
	Water
Water				Water
	Valve
Return				Coil
			2-WAY VALVE
Shutoff
Valves *
			FACTORY PIPING
Hose			FIELD PIPING	SL-11899
Bibs *	*Components are not supplied by Liebert but			Pg. 5
	are recommended for proper circuit operation
	and maintenance.

55 Liebert® Challenger 3000™