Sanyo MDF-C8V, Service Manual

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10. Remote alarm terminal
In normal condition:
㸣
In alarm condition &
power failure :
Remote alarm contact: N.O. N.C.
㸣
Remote alarm contact: N.C. N.O.
11. Sensor failure
(1) Temp. sensor
Open circuit:
E01 and 50
㷄
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.
Short circuit:
E02 and -170 㷄 >PV>-180 㷄 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
abnormal temp.
E10 is displayed and compressor turns off when temperature in Comp.
sensor is higher than 100
㷄 . When temperature in Comp. sensor is lower
than 65 㷄 , 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 㷄
or higher (E01 displayed) … Judge as ‘Open circuited’
-170 㷄 or lower (E02 displayed) … Judge as ‘Short circuited’
Comp. sensor:
-60 㷄 or lower (E05 displayed) … Judge as ‘Open circuited’
130
㷄
or 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.
Condensing
fan motor:
With temperature in Comp. sensor is lower than 20 㷄 , 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
㷄 .
Setting data: The setting data initialized in F17 is retrieved in non-volatile memory.