McQuay MDS300B Manual de instalación descargar pdf (Pagina 3)

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1 General Features

1.1 Wide Range and Stepless Capacity Modulation

• Wide capacity modulation range (10%-100%)

• According to changing the ralio of “loading time” and “unloading time”. MDS can modulate the capacity

steplessly.

• Lower the energy consumption and running cosl.

1.2 Accurate Temperature Control and Quick Response

• The cooling/heating capacity of the indoor units is controlled by the EXV. which ensures the low theperature

ﬂuctuation of 0.3

• Stepless capacity modulation.

• Ouick response to output the capcity (40s).

Running ration of compressors %

MDS system

Inverter system

1.3 Simple, Reliable and Long Life

• The PWM valve has the longevity of 40 million times.

• Wide rage of capacity modulation makes sure the start/stop times reduces.

• Less components.

• No complicate inverter controller.

• The compress or has an excellent oil return performance, there is no need for the oil return circuit.

• Even the units run in 10% part load, the MDS system can be in good stage.

The temperature ﬂuctuation range of traditional system is ±2°C

The temperature ﬂuctuation range of MDS system is ±0.3°C

The temperature ﬂuctuation range of traditional system is ±0.5°C

The temperature ﬂuctuation range of MDS system is ±0.3°C

Temp.

Time

Temp.

Time

Total capacity of operating indoor units

System control

Environment

Solenoid valve

Digital scroll

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McQuay MDS300B Manual de instalación Pagina 3