Si18-201
System control
Main Functions
151
3.27
Cooling Outdoor Unit SC Control
Outline
This function controls the subcooling of the outdoor heat exchanger in order to ensure
maximum use of the outdoor heat exchanger capacity.
"
Normal cooling operation ... Controls the difference between the high pressure and outside
temperature to the temperature difference most suitable for the heat exchanger capacity.
"
Cooling operation under low outside temperature ... Since the fan control alone cannot
maintain appropriate compressor differential pressure, the control function sends surplus
refrigerant to the outdoor heat exchanger in order to reduce the heat exchanger
performance and maintain the high pressure.
When excessive liquid refrigerant is collected in outdoor heat exchanger;
→
Reduction of outdoor heat exchanger performance
→
Increase of high pressure
→
High pressure saturation temperature rises higher than target high pressure saturation
temperature
→
EVL is opened to send surplus refrigerant (subcooled liquid) to receiver
Содержание BPMK928B42
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Страница 71: ...Specifications Si18 201 58 Specifications ...
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Страница 207: ...Remote Controller Si18 201 194 Operations 1 1 3 FTXD25 35KZ ...
Страница 208: ...Si18 201 Remote Controller Operations 195 1 1 4 FTK FTX50 60H ...
Страница 209: ...Remote Controller Si18 201 196 Operations 1 1 5 FTKD FTXD50 60 71J ...
Страница 213: ...Remote Controller Si18 201 200 Operations 1 1 9 FHYC35 50 60 71K Optional Accessory BRC7C612WC ...
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Страница 217: ...Remote Controller Si18 201 204 Operations ...
Страница 234: ...Si18 201 Method of Field Set Operating Test 221 2 3 Interface Adaptor for Room Airconditioner KRP928A1S ...
Страница 237: ...Method of Field Set Si18 201 224 Operating Test ...
Страница 262: ...Si18 201 Troubleshooting SkyAir Indoor Unit Service Diagnosis 249 ...
Страница 393: ...Wiring Diagrams Si18 201 380 Appendix FHYC35 50 60 71KVE9 3D005668C ...
Страница 394: ...Si18 201 Wiring Diagrams Appendix 381 FHYC35 50 60 71KV1C9 ...
Страница 395: ...Wiring Diagrams Si18 201 382 Appendix FDYM60 03FAV1 FDYM60 03FAVAL C 3D019816D OPTION ...
Страница 396: ...Si18 201 Wiring Diagrams Appendix 383 FDYM60 03FAV1C ...