McQuay MDS030A Design & Installation Guide

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Design & installation Guide For McQuay MDS Multi System
● Sequence of vacuum drying
According to the different ambient, vacuum drying has two ways:
■ Ordinary vacuum drying
Operating sequence:
● Connect the pressure gauge with the liquid pipe and gas pipe, then run the vacuum pump
for more than 2 hours to reach the vacuity of -755mmHg
● After pumping for 2 hours, if the pressure is higher than -755mmHg, or there is some
moisture, then pump it for 1 more hour.
● After 3 hours pumping, if the pressure is still higher than -755mmHg, please check to see
if there are some air leak gap.
● When the pressure is -755mmHg, stop pumping and wait for 1 hour to see if the pressure
change. If the pressure change, that means there are some air leak gaps or there is some
moisture in the pipe.
Notes
Vacuum should be held both in the liquid pipe and the gas pipe at the same time
Type Max. air flow
Application
vacuum drying air discharge
vacuum pump with lubricant
0.02mmHg
Suitable Suitable
100L/min
10mmHg
unsuitable Suitable
40L/min
vacuum pump without lubricant
0.02mmHg
unsuitable Suitable
50L/min
Type of vacuum pump and the vacuity

McQuay MDS030A Specifications

General

Brand	McQuay
Model	MDS030A
Category	Air Conditioner
Language	English