Mitsubishi Heavy Industries FDUA160AVSAVH Service Manual page 54

(d) Outdoor DRED PCB replacement procedure (Models FDCA-VSA)
・Since the following precaution is the important contents for safety, be sure to observe them.
WARNING and CAUTION are described as follows:
WARNING
！
CAUTION
！
・Securely replace the PCB according to this procedure.
If the PCB is incorrectly replaced, it will cause an electric shock or fire.
・Be sure to check that the power source for the outdoor unit is turned OFF before replacing the
PCB. The PCB replacement under current-carrying will cause an electric shock or fire.
・After finishing the PCB replacement, check that wiring is correctly connected with the PCB before
power distribution. If the PCB is incorrectly replaced, it will cause an electric shock or fire.
Band the wiring so as not to tense because it will cause an electric shock.
・
Replace the DRED PCB according to the following procedure.
( i ) Replace the DRED PCB after elapsing 3 minutes from power OFF.
( ii ) Disconnect the connectors from the DRED PCB, before replacing the DRED PCB.
(iii) Connect the connectors to the DRED PCB. (Confirm the connectors are not half inserted.)
CNDRM
Precautions for Safety
Indicates an imminently hazardous situation which will result in death or serious
injury if proper safety procedures and instructions are not adhered to.
Indicates a potentially hazardous situation which may result in minor or moderate
injury if proper safety procedures and instructions are not adhered to.
！ WARNING
！ CAUTION
Fig.１ Parts arrangement view
53
-
CNDRED
CNPOWER
Parts No.
-
'21 • PAC-SM-398
PCA012D062
After elapsing 3 minutes
from power OFF
B