18
DISASSEMBLY PROCEDURE
7
1. Removing the electrical parts
(1) Remove the 2 screws and the electrical parts cover.
(See Photo 1.)
●
Indoor controller board (I.B)
●
Compressor contactor (52C)
●
Fuse (FUSE)
●
Varistor (ZNR1)
●
Terminal block (TB)
(See Photo 2.)
OPERATING PROCEDURE
PHOTOS
2. Removing the pipe temperature thermistor (RT12)
(1) Remove the electrical parts cover.
(Refer to 1.)
(2) Remove the 2 screws and the service panel.
(See Photo 3.)
(3) Remove the thermistor (RT12) from the holder.
(See Photo 4.)
(4) Remove the connector (CN21) from the indoor
controller board and pull the white wire of thermistor
(RT12) out.
Service panel
(Pipe temperature
thermistor / liquid)
Front panel
Set screws
(for drain pan)
Set screws
Terminal block
Photo 2.
Photo 3.
Photo 1.
SEZ-A12AR.TH
SEZ-A18AR.TH
SEZ-A24AR.TH
Electrical
parts cover
Service panel
(Condenser / evaporator
temperature thermistor)
Drain
pan
Indoor
controller box
Indoor controller board
Varistor
Fuse
Compressor contactor
Condenser / evaporator
temperature thermistor (RT13)
Screws
Screws
Service
panel
Photo 4.
3. Removing the condenser / evaporator temperature
thermistor (RT13)
(1) Remove the electrical parts cover.
(Refer to 1.)
(2) Remove the 2 screws and the service panel.
(See Photo 3.)
(3) Remove the thermistor (RT13) from the holder.
(See Photo 4.)
(4) Remove the connector (CN29) from the indoor
controller board and pull the black wire of thermistor
(RT13) out.
Pipe temperature
thermistor / liquid
(RT12)
OC303-A-1.qxp 04.9.21 4:08 PM Page 18