Sanyo MDF-C8V Remote alarm terminal, Sensor failure, When the power is supplied without battery

Models: MDF-C8V

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10. Remote alarm terminal
Condensing fan motor:
Setting data:
Comp. sensor:

10. Remote alarm terminal

 

 

In normal condition:

 

Remote alarm contact: N.O. N.C.

In alarm condition &

Remote alarm contact: N.C. N.O.

power failure

:

 

11.Sensor failure

(1)Temp. sensor Open circuit:

Short circuit:

E01 and 50 are displayed alternately, the buzzer beeps intermittently and remote alarm contact outputs.

The compressor would be allowed to turn on. Press BUZZER key to stop the buzzer beeping.

E02 and -170 >PV>-180 are displayed alternately, the buzzer beeps intermittently and remote alarm contact outputs.

The compressor would be allowed to turn on. Press BUZZER key to stop the buzzer beeping.

(2)

Comp. sensor

 

 

Open circuited:

E05 and PV are displayed alternately, the buzzer beeps intermittently

 

 

and remote alarm contact outputs.

 

 

Press BUZZER key to stop the buzzer beeping.

 

Short circuited:

E06 and PV are displayed alternately, the buzzer beeps intermittently

 

 

and remote alarm contact outputs.

 

 

Press BUZZER key to stop the buzzer beeping.

(3)

Compressor

E10 is displayed and compressor turns off when temperature in Comp.

 

abnormal temp.

sensor is higher than 100 . When temperature in Comp. sensor is lower

 

 

than 65 , compressor turns on.

(4)

Error code priority

 

 

No.1:

Temp. sensor failure (E01 or E02)

 

No.2:

Comp. sensor failure (E05 or E06)

 

No.3:

Compressor abnormal temperature (E10)

(5) Temperature to judge sensor failure

PT sensor: 49.9 or higher (E01 displayed) … Judge as ‘Open circuited’ -170 or lower (E02 displayed) … Judge as ‘Short circuited’ -60 or lower (E05 displayed) … Judge as ‘Open circuited’

130or higher (E06 displayed) … Judge as ‘Short circuited’

12.When the power is supplied (without battery)

Compressor: In PV is higher than SV, compressor turns on with 2minutes (initial value) of delay after the power was supplied.

With temperature in Comp. sensor is lower than 20 , Fan motor would not activate even if the power is supplied. Fan motor starts rotating once the temperature in Comp. sensor is reached equal or higher than 80 .

The setting data initialized in F17 is retrieved in non-volatile memory.

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Sanyo MDF-C8V service manual Remote alarm terminal, Sensor failure, When the power is supplied without battery