General Features - McQuay MDS030A Manual

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.
MDS system
Total capacity of operating indoor units
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 C.
O
• Stepless capacity modulation.
• Ouick response to output the capcity (40s).
The temperature fluctuation range of traditional system is ±2°C
Temp.
The temperature fluctuation range of MDS system is ±0.3°C
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.
System control
Solenoid valve
Digital scroll
Inverter system
Time
Environment
The temperature fluctuation range of traditional system is ±0.5°C
Temp.
The temperature fluctuation range of MDS system is ±0.3°C
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Time