Emerson 3000 installation manual Expansion Tank Field-Installedat

Glycol/GLYCOOL-Cooled Models—Self-Contained Compressor

Figure 27 General arrangement—GLYCOOL models with scroll compressor

Expansion Tank Field-Installed at						Glycol Pump
Highest Point in System							Pump
		Drycooler	Drycooler		Unions*
							Housing
	Fill*	Electric Box
			Coil
			Fluid				Evaporator
	Pressure		Return to		Isolation		Coil
			Pump
	Port*				Valves*
		Unions*
			Fluid			Expansion
			Supply			Valve
	Hose		from Pump				Sensing
Air Vents*	Bib*	Flow Regulating		Sight			Bulb
at Top of		Valve*		Glass		Hot Gas
Risers		Pressure					External
		Port*	Filter			Bypass
						Valve	Equalizers
			Dryer
						Service
						Valves	Scroll
					Hot Gas		Compressor
					Bypass

Econ-O-Coil

			3-Way Water
	Fluid		Regulating	Tube
		Valve	Valve
Fluid	Supply to	Actuator		in Tube
	Unit			Condenser
Return
from	Econ-O-Cycle
Unit	Comparator		3-Way Chilled
	Isolation		Glycol Valve
	Valves*

Econ-O-Coil

Circuit

Field-Supplied

Reducers

Required on 3-Ton Units

Hose	FACTORY PIPING
Bibs*
	FIELD PIPING

*Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance.

DPN000379

Rev. 03

51