McQuay MDS030AR User Manual

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Design & installation Guide For McQuay MDS Multi System
seconds and the unloaded state time is 5 seconds, the compressor modulation is 75%. The
capacity is a time averaged summation of the loaded state and unloaded state. By varying the
loaded state time and unloaded state time, any capacity (10%-100%) can be delivered by the
compressor.
Resident system Commerce system
1.2.2 Sketch Map of Installation
PWM valve power off
Valve close
Fixed scroll move downwards
Two scrolls gather together
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PWM valve power on
Valve open
Fixed scroll moves upwards
Two scrolls separate
Unloading
Modulation chamber
Discharge pressure
Solenoid valve
Bleed hole
Suction pressure
Unloading
Modulation chamber
Discharge pressure
Solenoid valve
Bleed hole
Suction pressure
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McQuay MDS030AR Specifications

General

Brand	McQuay
Model	MDS030AR
Category	Air Conditioner
Language	English