mycom 320LUD - Preparation for Installation

Chapter 3 Installation
UD-series Screw Compressor 3.2 Installation Works
3-3
3.2.4 Preparation for Installation
 Installation Space
Secure sufficient working space for easy operation, cleaning, maintenance, and inspection.
 Illumination
Prepare illumination devices which allow easy operation, cleaning, maintenance, and inspection.
 Ventilation
If natural ventilation is insufficient, install ventilation fans according to the relevant regulations.
 Connecting Port of Compressor
Figure 3-1 Connecting Port of Compressor
（125 – 320）
Table 3-1 Connecting Port of Compressor (125 – 320, Cast iron case)
Note 1：Cast iron casings from 160 to 320*UD were discontinued in 2010.
No. Item
Rotor diameter
125
160
200
250
320
1
Connecting port for liquid
injection1
MYK 10A MYK 20A MYK 25A MYK 32A MYK 50A
2
Connecting port for liquid
injection2
Rc 1/4 Rc 3/8 Rc 1/2 Rc 1/2 Rc 3/4
3
Discharge gas outlet
MYK 65CD
MYK 100CD
MYK 125CD
MYK 150CD
MYK 200CD
4
Unloader control
（
Decrease
）
Rc 1/4
Rc 1/4
Rc 3/8
Rc 3/8
Rc 3/8
5
Suction gas inlet
MYK 100A
MYK 125A
MYK 150A
MYK 250A
MYK 350A
6
Lubricating oil main supply
port
（
journal
）
Rc 3/8 Rc 1/2 MYK 20A MYK 25A MYK 40A
7
Economizer connecting port
MYK 15A
MYK 25A
MYK 32A
MYK 50A
MYK 80A
8
Control wiring connector for
indicator
2-PF 3/4 2-PF 3/4 2-PF 3/4 2-PF 3/4 2-PF 3/4
9
Unloader control
（
Increase
）
Rc 1/4
Rc 3/8
Rc 3/8
Rc 1/2
Rc 1/2
10
Oil drain port
Rc 3/8
Rc 3/8
Rc 1/2
Rc 1/2
Rc 1/2
11
Oil injection port
Rc 3/8
Rc 3/8
Rc 1/2
Rc 1/2
MYK 25A
Please check the figure for details.