Emerson 3000 manual , , 

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The centrifugal condensing unit may be connected to the evaporator section by means of pre-charged refrigeration lines (3 ton only). This greatly simpli- fies installation and keeps installation costs low. The copper-tube, aluminum-fin coil is equipped with low temperature controls to assure year-round operation to -20°F (-29°C). The condensing unit is completely factory wired, charged and tested and is ready for final connections.

The centrifugal fan condensing unit includes scroll compressor, condenser coil, centrifugal blower assembly, high-pressure switch, Lee-Temp head pressure control.

Condensing unit has hot gas bypass standard feature which bypasses hot gas around the compressor directly to the suction side of the compressor to pro- vide capacity control and reduce compressor cycling. System includes liquid injection valve to maintain proper suction superheat.

Unit must be mounted indoors. Duct flanges are pro- vided.

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The air cooled condensing unit can be mounted on the roof or a ground level site. The condensing unit housing is manufactured of galvanized steel with a powder coat finish. The copper-tube, aluminum-fin coil is equipped with low temperature controls to assure year-round operation to -30°F (-34.4°C). The condensing unit is completely factory wired, charged and tested and is ready for final connections. (See illustration below)

The standard prop fan condensing unit includes scroll compressor, prop fan, high head pressure switch, hot gas bypass and Lee-temp head pressure control (for operation down to -30°F (-39°C) ambient.)

 

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This unit is available in these optional configura- tions:

•105°F (40°C) ambient for high ambient condi- tions.

•95°F (35°C) ambient Quiet-Line for low noise level conditions below 58 dBa.

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Factory installed non-fused disconnect switch allows unit to be turned off for maintenance. Discon- nect switch is available on indoor condensing units only.

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(3 ton only): Consists of one pre-charged liquid line and one pre-charged insulated suction line of soft copper tubing. Each line has one male quick-connect coupling and one female quick-connect coupling with an access valve connection.

Available in 15 ft. (4.6m) and 30 ft. (9.1m) lengths for interconnection of remote located condenser module. Maximum recommended distance between evapora- tor and condenser modules with pre-charged line sets is 45 ft. (13.7m). For longer runs, use sweat adapter kit.

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(3 ton only): Contains two suction and two liquid line compatible fittings that allow field-supplied intercon- necting refrigerant lines to be used.

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