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By setting of DIPSW1-1 ~ 1-8, the unit operating condition can be observed with the service LED on the control circuit
board. (For the relation of each DIPSW to the content, see the table provided.)
As shown in the figure below, the LED consist of 7 segments is put in 4 sets side by side for numerical and graphic
display.
OC
:
Outdoor unit
SV
:
Solenoid valve
THHS
:
Inverter radiator panel
IC
:
Indoor unit
LEV
:
Electronic expansion valve
COMP
:
Compressor
SW1
:
Outdoor unit control circuit board
E
:
Memory storage for service activities (sampling per minute)
7 seg LED
The numerical display includes that of pressure, temperature or the like, while the graphic display includes that of
operating condition, solenoid valve ON/OFF state or the like.
• Numerical display
Example : display at 1.84MPa of pressure sensor data (Item No.56)
• Graphic display (Two LEDs aligned vertically express a flag.)
Example : At forcible powering in outdoor unit operation display
LD1 LD2 LD3 LD4 LD5 LD6
LD7 LD8
8
8
. LED Monitor Display
1
1
How to Read the Service Monitor LED
[1] How to read the LED
