Mitsubishi Electric SUZ-KA25VA2, Техническое и сервисное руководство, Страница: 30 / 74

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Primary current protection
Secondary current protection
High-pressure protection
Defrosting in cooling
3 times
Lighting
Discharge temperature
protection
• Check refrigerant circuit and refrigerant amount.
• Refer to 11-5.
$
"Check of LEV".
• Refer to 11-5.
&
"Check of outdoor thermistors".
4 times Lighting
Low discharge
temperature protection
• Refer to 11-5.
$
"Check of LEV".
• Check refrigerant circuit and refrigerant amount.
5 times Lighting
Cooling high-pressure
protection
This symptom does not mean any abnormality
of the product, but check the following points.
• Check if indoor filters are clogged.
• Check if refrigerant is short.
• Check if indoor/outdoor unit air circulation
is short cycled.
-
-
These symptoms do not mean any abnormality
of the product, but check the following points.
• Check if indoor filters are clogged.
• Check if refrigerant is short.
• Check if indoor/outdoor unit air circulation
is short cycled.
Twice Lighting
Once Lighting
When the discharge temperature exceeds
100
during operation.
When the frequency of the compressor is kept
80Hz or more and the discharge temperature
is kept under 39
for more than 20 minutes.
When the outdoor heat exchanger
temperature exceeds 58
during operation.
9 times
Lighting
Inverter check mode
Lighting
Lighting Normal
When the unit is operated with emergency
operation switch.
-
When the input current exceeds 15A.
When the current of the compressor
exceeds 15A.
When the indoor gas pipe temperature
exceeds 45
during heating.
When the indoor gas pipe temperature
falls 3
or below during cooling.
LED1 (Red) LED2 (Yellow)
Abnormal point/Condition Correspondence
Indication
Condition
Outdoor unit
operates.
Outdoor unit
operates
No.
Symptom
20
21
22
23
24
25
26
SUZ-KA60VA2.TH