Trane Series R Model RTUD Lista de Peças descarregar pdf (Página 10)

10 RLC-PRC029-EN

Application Considerations

Heat Recovery

At a time when energy costs are high and continue to rise, reducing energy usage has become

increasingly important. By using a RTWD chiller with heat recovery, utilization of energy can be

improved by using heat from the condenser that would otherwise be wasted.

The use of heat recovery should be considered in any building with simultaneous heating and

cooling requirements or in facilities where heat can be stored and used at a later time. Buildings

with high year-round internal cooling loads are excellent opportunities for heat recovery. Heat

recovery can be accomplished with the RTWD by recovering heat from the water leaving the

standard condenser and using it in conjunction with a third party heat exchanger.

Water Treatment

The use of untreated or improperly treated water in chillers may result in scaling, erosion,

corrosion, and algae or slime buildup. It is recommended that the services of a qualified water

treatment specialist be engaged to determine what treatment, if any, is advisable.

Water Pumps

Where noise limitation and vibration-free operation are important, Trane strongly encourages the

use of 1750-rpm (60 Hz) [1450-rpm (50 Hz)] pumps. Specifying or using 3600-rpm (60 Hz) [3000-rpm

(50 Hz)] condenser water and chilled water pumps must be avoided, because such pumps may

operate with objectionable levels of noise and vibration. In addition, a low frequency beat may

occur due to the slight difference in operating rpm between 3600-rpm (60 Hz) [3000-rpm (50 Hz)]

water pumps and Series R chiller motors.

Note: The chilled water pump must not be used to stop the chiller.

heat

exchanger

heating

loads

controller

condenser

evaporator

cooling-tower

pump

cooling

loads

chilled-water

pump

condenser-water

pump

cooling

tower

controller

no flow

warmer flow

cooler flow

LEGEND

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