Protective Function List - Fujitsu Airstage V-II 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 3 Thermistor
Discharge Temp Discharge Temp
Protection 4 Thermistor
Discharge Temp Discharge Temp
Protection 5 Thermistor
Discharge Temp Discharge Temp
Protection 6 Thermistor
Discharge Temp Discharge Temp
Protection Stop Thermistor
High Pressure High Pressure
Protection 1 Sensor
High Pressure High Pressure
Protection 2 Sensor
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
Heating: Discharge temperature
<Starting conditions>
Discharge temperature
< starting condition>
Discharge temperature
<Starting conditions>
Discharge temperature
<Reset conditions>
2 minutes have elapsed and
(discharge temperature
<Starting conditions>
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
(INV)
<Pattern reset condition>
EA21
Error reset (push button SW) executed after power turned on again
(CONST)
<Starting conditions>
High-pressure
<Reset conditions>
Fixed time has elapsed and high-pressure
* Fixed time when SV1: ON 180 secs, when SV2: ON 30 secs
<Starting conditions>
High-pressure
<Reset conditions>
3 minutes have elapsed and high-pressure
<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
<Pattern starting condition>
High-pressure
<Pattern starting condition>
High-pressure
<Starting conditions>
High-pressure
<Pattern starting condition>
High-pressure
<Pattern reset condition>
After 25 seconds have elapsed and high-pressure
<Pattern starting condition>
High-pressure
<Pattern reset condition>
After 25 seconds have elapsed and high-pressure
Operating Condition
100°C or suction SH 10°C accumulated time
95°C and suction 7°C
<Reset conditions>
95°C Discharge temperature
102°C Discharge temperature
<Reset conditions>
107°C Discharge temperature
<Pattern reset condition>
105°C Discharge temperature
95°C and EEV1=500pls
90°C or EEV1 400pls)
<Reset conditions>
90°C Discharge temperature
fixed value (INV: 110°C, constant speed: 115°C)
80°C
3.94MPa
3.70MPa
3.60MPa
2.80MPa
3.50MPa
<Pattern reset condition>
3.30MPa High-pressure
<Pattern reset condition>
3.50MPa High-pressure
<Reset conditions>
3.20MPa High-pressure 3.20MPa
3.78MPa
3.70MPa
3.90MPa
3.78MPa
02-13
EEV of operating indoor unit gradually opened
EEV2 + 30pls/30 secs
90°C
97°C
Outdoor unit rotation execution
* After rotation has been executed once;
105°C
it is executed every 15 minutes.
INV compressor speed -6rps every 30 secs
100°C
Speed rise prohibited,
when discharge temperature becomes lower
than 105 , prohibit the rotational speed rise
of the compressor.
Expansion valve of stopped indoor unit gradually
opened
(upper limit 200pls)
EEV1: Forcefully OPEN
90°C
Corresponding compressor stopped
Corresponding compressor stopped
(permanent stop)
Error display
At INV independent operation: SV2 ON
At constant speed independent operation:
SV1 ON
At INV independent operation: SV2 ON
When still insufficient: SV1 ON + SV2 ON
At INV + constant speed operation, constant
speed independent operation: SV1 ON
Fan speed 1 step increase
Fan speed lowered/every 30 secs
3.3MPa
Fan lowest speed (300rpm) fixed
3.5MPa
Compressor capacity lowered/every 15 secs
Compressor capacity rise prohibited
Compressor capacity lowered every 30 secs
Operation