Emerson 3000 , , , 

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Two versions are available:

1.Self-Contained Systems

2.Split Systems

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These systems feature a scroll compressor and con- trols, expansion valve, hot gas bypass and evaporator coil in the room unit.

Air Cooled models also include a crankcase heater on the compressor and require field connection to remote air cooled condenser.

Water, Glycol and GLYCOOL models also include a coaxial condenser with field connections required to the water or glycol coolant loop.

Water/Glycol models have 2-way WRV with bypass. GLYCOOL models have 3-way WRV.

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These pre-charged systems feature the evaporator coil and expansion valve in the room unit, with the scroll compressor, and the condensing equipment located in one of several different types of condensing units. Pre-charged line sets are available on 3-ton systems.

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The heart of the refrigeration system is the compres- sor.

All self-contained evaporator units and split system condensing units contain a high efficiency, quiet operating scroll compressor. The compressors have internal vibration isolating mountings, pressure safety controls and built-in overload protection.

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The evaporator coil is designed for the high sensible heat ratio required by electronic equipment applications. The copper tube, aluminum fin coils are configured as A- frame coils on downflow units and V-frame coils on upflow units for smooth air flow through the unit.

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Every Challenger compressor has a high pressure switch with an exclusive manual reset after high pressure cut-out. This prevents cycling the compres- sor at high pressure, resulting in greater efficiency and longer compressor life.

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The externally equalized thermostatic expansion valve smoothly controls the flow of refrigerant through the coil and provides precise control of superheat.

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