3-6
3.3.1 Automatic PTI Step No. and Contents
During PTI operation, Step No, contents, and select PTI (Short, Full, Chilled or Frozen) will be displayed.
Step No. Contents Short PTI Full PTI Chilled PTI Frozen PTI
P00 Basic data record ✓✓✓✓
P02 Alarm check on all sensors ✓✓✓✓
P03 EFM check ✓✓✓✓
P04 RS & SS accuracy check ✓✓✓✓
P06 HPT & LPT accuracy check ✓✓✓✓
P08 INV check ✓✓✓✓
P10 ESV & EMV check ✓✓✓✓
P12 LSV check ✓✓✓✓
P14 HSV check ✓✓✓✓
P16 RSV check ✓✓✓✓
P18 DMV check ✓✓✓✓
P20 HPS check ✓✓✓✓
P22 Pump down check ✓✓✓✓
P24 HSV, RSV & ESV check ✓✓✓✓
P50 Pull-down check ✓✓✓
P60 0℃ control ✓✓
P70 Defrost operation check ✓✓✓
P80 Pull-down speed check ✓✓
P90 -18℃ control ✓✓
3.3.2 Automatic PTI Alarm
Alarm code T＊＊＊ is displayed for Automatic PTI.
Step
No.
Contents
Alarm
code
Conclusion Possible cause Check method
P00
Basic data
check
No
alarm
No conclusion
P02
Alarm
check on
all sensors
Same as
normal
operation
Same as normal
operation
Same as normal
operation
Same as normal
operation
P03
EFM
check
T031
EFM operation current is
large at high and low speed.
Faulty motor coil Check motor coil
T032
EFM operation current
is small at high and low
speed. (Broken wire?)
Faulty operation of
magnetic contactors
EFM wiring fault
Check of magnetic
contactors operation
Check wiring
P04
RS, SS
check
T041
The temperature difference
of SS and DSS is large.
SS Failure
Compare the SS with the
DSS on the control panel.
The temperature difference
of RS and DRS is large.
RS Failure
Compare the RS with the
DRS on the control panel.
P06
HPT, LPT
check
T061
The pressure
difference of HPT
and LPT is large.
HPT Failure
Compare the high-pressure value
between HPT and manifold gauge.
LPT Failure
Compare the low-pressure value
between LPT and manifold gauge.
P08
INV
check
T081
The frequency does not
match to command frequency.
T082
No pressure difference
between high and low pressure.
0301-10LX10F11BEn.indd3-60301-10LX10F11BEn.indd3-6 2014/11/1916:36:352014/11/1916:36:35
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