Outdoor Pcb Test Run Operation (For Pump Down/Servicing Purpose) - Panasonic CS-E12RB4UW Service Manual

14.4 Outdoor PCB Test Run Operation (For Pump Down/Servicing Purpose)


The Test Run operation will be activated by short-circuiting CN-S (Pin 1 and 2) at outdoor unit PCB after power
supplied to outdoor unit terminal 1 and 2. The unit forced to run rated frequency cooling operation mode.
 CU-E12RB4U
CN-DCFM
CN5
CN4
CN-STM
CN-S
CN-TANK
CN-TH
CN-HOT
POWER
TRANSISTOR
(IPM)
FG1
54
AC-BLK
AC-WHT
DATA
CURRENT
TRANSFORMER
(CT)