mycom J Series Operation Manual

2202B0JE-DA-J-N_2012.01.
Table of Contents
Screw Compressor J-series
xii
2.8.3.2 Fixed Vi Mode............................................................................................ 2-26
2.8.4 Vi Position Sensor .......................................................................................... 2-26
2.9 Solenoid Valve ...........................................................................................2-27
3 Installation
3.1 Precautions for Installation.........................................................................3-1
3.2 Installation Work..........................................................................................3-2
3.2.1 Unpacking......................................................................................................... 3-2
3.2.2 Storage ............................................................................................................. 3-2
3.2.3 Transfer ............................................................................................................ 3-2
3.2.4 Preparation for Installation................................................................................ 3-3
3.2.5 Installation......................................................................................................... 3-4
3.2.5.1 Installation.................................................................................................... 3-4
3.2.5.2 Piping........................................................................................................... 3-5
3.2.5.3 Optional Accessories................................................................................... 3-5
3.2.6 Compressor Protection Functions (Safety Device) .......................................... 3-6
3.2.7 Pressure Test (Leak Test)................................................................................ 3-7
3.2.8 Refrigerant Oil Charge...................................................................................... 3-7
3.2.8.1 Initial Charge of Refrigerant Oil................................................................... 3-7
3.2.8.2 Additional Charge of Refrigerant Oil Procedure.......................................... 3-8
3.2.9 Charging of Refrigerant .................................................................................... 3-8
3.2.10 Check after Installation..................................................................................... 3-8
3.3 Documents Related to Installation.............................................................3-9
4 Compressor and Package Operation
4.1 Adjustment before Test Operation.............................................................4-1
4.1.1 Adjustment of Unloader Slide Valve and Variable Vi Valve ............................. 4-1
4.2 Refrigerant Oil (Lubricant) ..........................................................................4-2
4.2.1 Precautions for Selecting the Refrigerant Oil ................................................... 4-2
4.2.2 Recommended Refrigerant Oil......................................................................... 4-2
4.2.3 Change of Refrigerant Oil Brand ...................................................................... 4-4
4.2.4 Precautions for Handling Refrigerant Oil.......................................................... 4-4
4.2.4.1 Precautions for Handling Polyalkylene Glycol (PN46) ................................ 4-4
4.2.4.2 Precautions for Handling Polyolester (POE) Oil.......................................... 4-5
4.3 Precautions for Operation...........................................................................4-6
4.3.1 Prevention of Liquid Return Operation............................................................. 4-6
4.3.2 Purging of Non-condensable Gases................................................................. 4-6
4.3.3 Action for Stopping the Compressor for Long Period of Time.......................... 4-7
5 Maintenance and Inspection
5.1 Precautions for Maintenance and Inspection............................................5-1
5.2 Maintenance List..........................................................................................5-2
5.2.1 Daily Management............................................................................................ 5-2
5.2.2 Compressor Overhaul ...................................................................................... 5-6
5.3 Management of Refrigerant Oil.................................................................5-16
5.3.1 Refrigerant Oil Management Standard...........................................................5-16

mycom J Series Specifications

General

Brand	mycom
Model	J Series
Category	Air Compressor
Language	English