Panasonic WU-216MF2U9 - Technical Data Manual - Page 141
Outdoor Unit Control PCB CR-144MF2U9 / A748187, U-120MF2U9 / U-144MF2U9, PCB and Functions
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1. Outdoor Unit Control PCB 1-2. Outdoor Unit Control PCB CR-144MF2U9 / A748187 (U-120MF2U9 / U-144MF2U9 ) Terminal pin (CN67) HIC7(CN78) HIC3(CN43) RC1 plug (CN75) OC plug (CN76) RC plug (CN73) EMG plug (CN69) PCB and Functions Alarm LED (LED1) Alarm LED (LED2) 1 EEPROM LED (LED3) EEPROM memory IC (IC14) HIC8(CN85) HIC6(CN82) HIC5(CN80) HIC4(CN19) HIC2(CN10) HIC1(CN7) Comp. discharge 1 sensor DISCH1(CN55) Suction gas temp. SCG(CN77) 2 SW5 SW6 3 SW7 SW4 4 SW3 SW2 SW1 5 Low-pressure sensor LPS(CN49) Snow sensor (CN34) SILENT(CN33) 6 RUN(CN27) pin TEST(CN22) pin CHK(CN23) pin 7 STOP(CN28) pin AP(CN24) pin A. ADD (CN30) pin Comp. discharge 2 sensor DISCH2(CN56) Outdoor air temp. TO(CN53) High-pressure DEF (CN25) pin 8 sensor MODE HPS(CN46) (CN40) pin Gas temp.sensor at heat exchanger 1, 2 EXG1,2(CN61) Suction temp. SCT(CN65) Liquid temp.sensor at heat exchanger 1, 2 EXL1,2(CN60) Oil detection sensor OIL1,2(CN54) 7 - 3 9