Technibel PHRIE Series - Page 98

98
Activation of protective device

Maintenance
remocon
alarm
display
Alarm
contents
Judgement conditions
clearing
condition
Judgement and correction
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P03
Abnormal discharge
temperature:
Discharge temp. detected
at or above specified
value
• Discharge temp. TD exceeds X°C
X = 111°C : For models
095/125/127/155/157/175/177/195/197
X = 115°C: for models 257/307
• Alarm after 4 consecutive pre-trips
Recovery
at restart
1. Check refrigerant circuit (leakage)
2. Check electronic expansion valve
3. Check discharge temperature sensor
TD/S5
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P04
High refrigerant pressure
(switch)
Only for units 257/307
High refrigerant pressure switch activated
Threshold = 41.5 bars
Recovery
at restart
Check A3 control board
P05
• Missing phase or
incorrect phases order
(for three-phase models)
or AC power supply error
• Current Transformer
disconnected
•Current value transmitted to A3 board is
low or the phases are not in correct
order (for three-phase models)
When no AC power input for
more than 3 minutes: alarm after 5
consecutive pre-trips
Recovery
at restart
1.Check power supply and phases order
2.Check current transformer connection
3.Check HIC
4.Check A3 board
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P15
Insufficient refrigerant
detected.
• Discharge temperature TD is 95°C or
higher (100°C for models 257/307)
• Electronic expansion valve is at Step
480 (Step 960 for models 257/307).
• The current value from the MDC
module is 2.0A or less (6A or less for
models 257/307).
When the above conditions has
continued for 1 minute
Recovery
at restart
1.Check refrigerant circuit (leakage)
2.Check electronic expansion valve
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P19
4-way valve trouble:
Judged after 5 minutes
had elapsed since the
compressor was switched
on
•Water heat exchanger temperature
drops even though compressor is
switched on during the heating mode.
[min(E1,E2P)] is 10°C or lower.
•Water heat exchanger temperature rises
even though compressor is switched on
during cooling mode. E2P is
50°C or higher.
•Alarm after 2 consecutive pre-trips
Recovery
at restart
1. Check 4-way valve
2. Check 4-way valve wiring
3. Check position of sensors E1 & C1
4. Check A3 board
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P20
High-pressure protection
error caused by cooling
high-load max (C1/S2,
C2/S1) temperature
• Air H/E temperature exceeds X°C
X = 64°C: for 095/125/257/307
X = 61°C: for 155/157/175/177/195/197
• Alarm after 10 consecutive pre-trips:
for 095/125/155/157/175/177/195/197
• Alarm after 4 consecutive pre-trips:
For 257/307
Recovery
at restart
1. Check cleanliness of air H/E
2. Check refrigerant amount
3. Check sensors C1/S2 and C2/S1
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P22
(*)
Fan motor trouble:
fan inverter protection
circuit was activated, or
lock was detected on fan
motor
Inverter stops after fault is detected
Alarm after 4 consecutive pre-trips
Recovery
at restart
Fan motor over current protection circuit
is activated:
• Check A3 board
• Check fan
Refer to diagnosis method (section 5.1.5)
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P26
(*)
Comp. inverter protection
circuit was activated.
Short-circuit on HIC
board
(Short time: 0.8 seconds
or less)
HIC temperature
protection
Inverter stops after fault is detected
Alarm after 4 consecutive pre-trips
Recovery
at restart
Temp.
dropped
1. Check HIC board
• Wiring trouble
• HIC failure
• Contact trouble – heat sink
2. Check compressor
Refer to diagnosis method (section 5.1.5)
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P29
(*)
Error in current detection
circuit:
• AC current value is high,
even while compressor is
halted.
Inverter halted after fault detected
Alarm after 4 consecutive pre-trips
Recovery
at restart
1. Check HIC board (& diode bridge)
2. Check compressor
Refer to diagnosis method (section 5.1.5)
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(*) see detail § 5.1.5