Emerson 3000 installation manual Expansion Tank Field-Installedat

49

Glycol/GLYCOOL-Cooled Models—Self-Contained Compressor

Figure 25 General arrangement—Glycol-cooled models with scroll compressor

Expansion Tank Field-Installed at			Glycol
Highest Point in System
	Drycooler	Unions*	Pump
Fill*
	Electric Box	Drycooler
		Coil

Pump

Housing

Air Vents*

at Top of

Risers

Expansion			Fluid		Isolation		Evaporator
			Return
Port*			to Pump		Valves*		Coil
	Unions*		Fluid		Expansion
			Supply		Valve
			from
Hose			Pump				Sensing
Bibs*
		Flow Regulating		Sight			Bulb
		Valve*		Glass
	Pressure					Hot Gas	External
	Port*
						Bypass	Equalizers
			Filter			Valve
			Dryer			Service
					Hot Gas
						Valves
					Bypass
							Scroll
					Solenoid
					Valve		Compressor
					Hot Gas
					Bypass
							Tube
							in Tube
							Condenser
							Tube
Fluid		Bypass					in Tube
							Condenser
Supply		Valve
to Unit
Fluid
Return
from	Isolation
Unit	Valves*
			2-Way Water
					3-Way Water
			Regulating
					Regulating Valve
			Valve
					(optional)

	Fluid		*Components are not
			supplied by Liebert but
	Supply
Hose			are recommended for
	to Unit
Bibs*	Fluid		proper circuit operation
			and maintenance
	Return
	from	Field-Supplied
	FACTORY PIPING Unit	Reducers Required
	FIELD PIPING	on 3-Ton Units	DPN000361
			Rev. 02