Refrigerant System and Function of Functional Parts of Outdoor Unit
Si18-201
106
Main Functions
1.3
Protective Devices
,
Thermistors
,
Sensors
A HPS
When the high pressure rose abnormally, HPS is actuated to stop the compressor.
B Low pressure sensor
Carries out controls such as low pressure protection (compressor protection), and ending
pump down operation, and judgement of gas shortage.
C Outdoor air thermistor
Carries out controls such as fan tap control (H/L switching), determination of initial
frequency, and compressor protection control.
D Outdoor unit heat exchanger thermistor
Carries out the target discharge pipe temperature control and the judgement of defrosting
start.
E Outdoor unit liquid pipe thermistor
In cooling operation, carries out the outdoor unit SC control (subcooling control) and the
judgement on defrost resetting.
F Discharge pipe thermistor
Carries out the compressor internal temperature protection control (operation halts due to
the discharge pipe abnormal high temperature, gas shortage, etc.)
Carries out the judgement of open-phase operation and the system control.
G Suction pipe thermistor
Carries out the pump down operation.
H Indoor unit room temperature thermistor
Instructs the capacity supply to BP unit using the room temperature.
I
Indoor unit heat exchanger thermistor
Carries out various protection functions and controls of capacity (peak cut, freeze protection,
heat exchanger isothermal control in heating operation, target discharge pipe temperature
control, SH control in cooling operation, SC control in heating operation).
J BP unit liquid pipe thermistor
In heating operation, carries out the indoor unit SC control.
K BP unit gas pipe temperature thermistor
In cooling operation, carries out the indoor unit SH control and the cooling gas pipe
isothermal control.
Содержание FTX25JVEA9
Страница 9: ...Si18 201 viii Table of Contents...
Страница 71: ...Specifications Si18 201 58 Specifications...
Страница 206: ...Si18 201 Remote Controller Operations 193 1 1 2 FVX25 35KZ...
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...
Страница 214: ...Si18 201 Remote Controller Operations 201...
Страница 216: ...Si18 201 Remote Controller Operations 203...
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...