SiUS181305E
vi Table of Contents
7.33 Check for Outdoor Unit............................................................................. 220
8. Thermistor Resistance / Temperature Characteristics............................224
9. Pressure Sensor .....................................................................................226
10.Method of Replacing Inverter’s Power Transistors Modules...................227
Part 9 Appendix ............................................................................ 229
1. Piping Diagrams......................................................................................230
1.1 Outdoor Unit ............................................................................................. 230
1.2 Branch Provider (BP) Unit ........................................................................ 231
1.3 Indoor Unit................................................................................................ 232
2. Wiring Diagrams......................................................................................234
2.1 Outdoor Unit ............................................................................................. 234
2.2 Branch Provider (BP) Unit ........................................................................ 235
2.3 Indoor Unit................................................................................................ 236
3. Removal Procedure (Booklet No.) ..........................................................239
Legends
Ta Outdoor temperature
Tb Outdoor heat exchanger temperature
Tc High pressure equivalent saturation temperature
Tdi Discharge pipe temperature
Te Low pressure equivalent saturation temperature
Tfin Radiation fin temperature
Tl Liquid pipe temperature
Tp Value of compressor port temperature calculated by Tc and Te, and suction superheated
degree
Tr Room thermistor temperature
Ts Set temperature
Ts1 Suction pipe temperature 1
Ts2 Suction pipe temperature 2
Tsh Subcooling heat exchanger gas pipe temperature
Tt Target temperature
HTdi Value of discharge pipe temperature (Tdi) compensated with outdoor temperature
SC Difference between the heat exchanger temperature and liquid pipe temperature of each
indoor unit
SH Difference between the heat exchanger temperature and gas pipe temperature of each
indoor unit
Pc High pressure sensor detection value
Pe Low pressure sensor detection value
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