-
150
-
'11 • KX-T-166
PCB012D008A
Connector connected by inverter substrate
P
wire (red)
N
wire (blue)
W
V
U
wire (blue)
wire (white)
wire (red)
Fig.1Part Arrangement View
It is recommended to exchange the transistor module according to the following procedure.
1. Start the replacing work ten minutes after turning off the power. (Be sure to measure the voltage (DC)
between the capacitor terminals (P,N of transistor module or connector terminals of fan motor power etc.)
to check that the capacitor have been discharged completely.)
2. Disassemble the control box.
3. Disconnect with the wire (U,V,W,P,N ) to the transistor module.
(See Fig 1.Parts Arrangement View)
4. Pull up the inverter substrate from transistor module.
Remove transistor module after removing the screw for transistor module.
5. Attach the transistor module. Coat the transistor module where its reverse-side all over
with accessories silicone grease (MRE equipment SA03434 or SA01846)uniformly.
6. Set the inverter substrate with make sure of connect connector.
7. Connect with the wire (U,V,W,P,N ) to the transistor module.
8. Assemble the control box as before.
Precautions for Safety
¡
Since the following precaution is the important contents for safety, be sure to observe them.
WARNING and CAUTION are described as follows:
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
¡
Securely exchange the transistor module according to this procedure.
If the transistor module is incorrectly exchanged, it will cause an electric shock or fire.
¡
Be sure to check that the power source for the outdoor unit is turned OFF before exchanging the transistor
module. The transistor module exchange under current-carrying will cause an electric shock.
¡
After finishing the transistor module exchange, check that wiring is correctly connected with the transistor module
before power distribution. If the transistor module is incorrectly exchanged, it will cause an electric shock or fire.
CAUTION
¡
Band the wiring so as not to tense because it will cause an electric shock.
WARNING
CAUTION
8.6 Outdoor unit transistor module replacement procedure
