Emerson 3000 manual , , 









The compressor pump-down control is accomplished by a liquid-line solenoid valve used in conjunction with a low pressure switch.



The Liebert manufactured low profile, direct drive propeller fan type air cooled condenser provides quiet, efficient operation.

It is constructed of aluminum with a copper tube and aluminum fin coil for corrosion resistance. An inte- gral, factory wired and tested control panel reduces installation time.



The winter control system features a variable speed motor and a specially designed solid-state fan speed control transducer.

The transducer senses refrigerant pressure and var- ies the speed of the fan motor to maintain constant condensing temperature and system capacity. This system permits operation at ambient temperatures as low as -20°F (-29°C).

 



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

The Lee-Temp winter control system’s heated receiv- ers permit startup and positive head pressure control at ambient temperatures as low as -30°F (-34.4°C).

The Lee-Temp package includes insulated receiver, a pressure relief valve, three-way head pressure con- trol valves, and rotalock valves (see Figure 7 below).



The Series PB condenser converts the Challenger 3000/Lee-Temp system into a self-contained package when an outdoor location is not practical.



Quiet-Line Condensers can help your facility meet the strictest noise codes, and do so at less cost than traditional condensers with acoustical shielding.

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