Mitsubishi PUHY-EP250 - How to Read the LED; LED Status Indicators

[9-1 LED Status Indicators ]
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HWE12050 GB
9 LED Status Indicators on the Outdoor Unit Circuit Board
9 LED S tatus Indi cators on the Outdoo r Unit Circuit Boa rd
9-1 LED Status Indicators
9-1-1 How to Read the LED
By setting the DIP SW 4-1 through 4-10 (Set SW6-10 to OFF.)(Switch number 10 is represented by 0), the operating condition
of the unit can be monitored on the service monitor. (Refer to the table on the following pages for DIP SW settings.)
The service monitor uses 4-digit 7-segment LED to display numerical values and other types of information.
Pressure and temperature are examples of numerical values, and operating conditions and the on-off status of solenoid valve
are examples of flag display.
SW4-10 is set to "0" on the LED Status Indicators Table.
In the example above, 1 through 9 are set to OFF, and 10 is set to ON.
1) Display of numerical values
Example: When the pressure data sensor reads 18.8kg/cm
2
(Item No. 58)
The unit of pressure is in kg/cm
2
 Use the following conversion formula to convert the displayed value into
a value in SI unit.
Value in SI unit (MPa) = Displayed value (kg/cm
2
) x 0.098
2) Flag display
Example: When 21S4a, 21S4b, SV1a are ON. (Item No. 3)
Example: 3-minutes restart mode (Item No. 14)
SW4
ON
12345678
910
7SEG LED
LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8
Upper
Lower
LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8