Protective Function - Fujitsu AUXB04GALH Service Manual

2-6 PROTECTIVE FUNCTION

2-6-1 Protective Function List
Protective Function
Detect Parts
Discharge Temp Discharge Temp
Protection 1 Thermistor
Discharge Temp Discharge Temp
Protection 2 Thermistor
Discharge Temp Discharge Temp
Protection 4 Thermistor
Discharge Temp Discharge Temp
Protection 5 Thermistor
Discharge Temp Discharge Temp
Protection Stop Thermistor
High Pressure High Pressure
Protection 3 Sensor
High Pressure High Pressure
Protection 4 Sensor
High Pressure High Pressure
Protection 5 Sensor
Abnormal High High Pressure
Pressure protection Sensor
Control
COOL HEAT DISPLAY
<Starting conditions>
3 minutes have elapsed since the start of operation and
(discharge temperature
30 minutes)
<Reset conditions>
Discharge temperature
<Starting conditions>
Cooling: Discharge temperature
< starting condition>
Discharge temperature
<Starting conditions>
Discharge temperature
<Reset conditions>
2 minutes have elapsed and
(discharge temperature
P1
<Pattern starting condition>
Discharge temperature
<Pattern reset condition>
3 minutes have elapsed and discharge temperature
EA11
<Pattern starting condition>
Pattern generated 2 times within 40 minutes
<Pattern reset condition>
Error reset (push button SW) executed after power turned on again
<Starting conditions>
Fixed time has elapsed and high-pressure
(* Fixed time at start of operation: 10 secs, after operation execution: 20 secs)
<Reset conditions>
Operation (fan speed 1 step increase) complete
<Starting conditions>
High-pressure
<Starting conditions>
High-pressure
<Starting conditions>
HP 3.68 MPa
<Starting conditions>
HP 3.8 MPa
Operating Condition
105°C or suction SH 10°C accumulated time
100 °C and suctionSH 7°C
<Reset conditions>
100°C Discharge temperature
<Pattern reset condition>
110°C Discharge temperature
and
Compressor temperature
95°C and EEV1=3000 pls
90°C or EEV1 400pls)
fixed value (120°C)
85°C
3.50MPa
<Reset conditions>
3.50MPa High-pressure
<Reset conditions>
3.20MPa High-pressure
<Reset conditions>
After 25 seconds have elapsed and,
HP 3.60 MPa
<Reset conditions>
After 25 seconds have elapsed and ,
HP 3.68 MPa
02-10
EEV of operating indoor unit gradually opened
EEV2 + 30pls/30 secs
95°C
Compressor speed -6rps every 30 secs
1 05°C
Speed rise prohibited,
when discharge temperature becomes lower
1 10°C
than 105 , prohibit the rotational speed rise
of the compressor.
Expansion valve of stopped indoor unit gradually
opened
(upper limit 200pls)
Compressor stopped
Compressor stopped
(permanent stop)
Error display
Fan speed 1 step increase
Fan lowest speed
3.50 MPa
Upper 300 rpm
Lower 0 rpm
Compressor capacity lowered/every 15 secs
3.20MPa
Compressor capacity rise prohibited
Compressor capacity lowered every 30 secs
Operation