Tecumseh ROTARY COMPRESSORS HG - Contents

2
General Information 5
The working principle of the Rotary Compressor 5
Range 6
Performance 7
Voltage and range of operation 7
1.4.1 Single phase 7
1.4.2 Three phase 7
Dimensions and connections 8
Mountings 8
Oil type 8
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
Operating Range 9
Operating envelope 9
Operating compression ratio 9
Operating pressure differential 9
2
2.1
2.2
2.3
Temperature Criteria 10
Ambient temperature 10
Discharge temperature 10
Motor temperature 10
Return gas temperature 10
3
3.1
3.2
3.3
3.4
General Recommendations 11
System requirements 11
Pipework design 11
4.2.1 Pipework design advice/guidance 11
4.2.2 Connections 14
4.2.3 Flexible connections 14
4.2.4 Velocity within pipework and heat exchangers 14
4.2.5 Capillaries 16
Refrigerant charge 21
4.3.1 Advice for installers 21
4.3.2 Refrigerant charge 21
Starting 21
4.4.1 Frequency of starts 21
4.4.2 Start-up pressure 21
4
4.1
4.2
4.3
4.4