Si18-201
System control
Main Functions
129
3.13
Freeze-Up Prevention
Outline
According to the freeze prevention status sent from the BP unit, the compressor output
frequency is regulated to decrease the compressor capacity in order to prevent the indoor heat
exchanger from freezing.
Details
Zones are produced based on the freeze prevention status signal sent from the BP unit (indoor
unit), and the freeze prevention control prevents freezing of the indoor unit.
A change of 2 Hz is made when each zone fluctuates.
The reset zone is set for 6 minutes when the operation mode is changed, for 30 seconds when
the number of operating room units increase, and for 30 seconds when the number of operating
room units decrease.
With each operation of the freeze prevention operation counter, the drooping speed is increased
by 1 Hz.
Drooping speed : 2Hz/20sec
Reset zone
No-change zone
Drooping zone
(M1019)
Содержание BPMK928B42
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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 ...
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