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31-5000572 Rev. 1 37
ENGLISH
INSTALLATION INSTRUCTIONS
Failure Code
Digital tube
indication on
main unit
Failure code definition Failure description Remarks
27-0 Oil temp too high protection Toil1) Ýòìï"$(Ϥ!" Ì¥æòñ÷ìñøòøö"öèûæèèçö÷ëèöè÷ùäïøèäé÷èõ
öëø÷çòúñäïäõð÷ëèäïäõðæòñçì÷ìòñäé÷èõö÷òóóìñê÷ëèòìï
temperature below 10 °F, automatic recovery after 2min 50s.
Four times an hour to confirm the fault
Once
confirmed
un-resumable
27-1 Oil temp too high protection (Toil2)
28 High pressure sensor Pd failure AD value is below 11 (open circuit) or over 1012 (short circuit) for
30s
Resumable
29 Low pressure sensor Ps failure AD value is below 11 (open circuit) or over 1012 (short circuit) for
# öÒéÝäò! $Ϥ$ Ì¥öëòõ÷æìõæøì÷éäøï÷ìöñò÷çè÷èæ÷èç
30-0 High pressure switch HPS1 failure If disconnected for 2s continuously, alarm. If alarm 3 times in an
hour, the failure is confirmed.
Once
confirmed
un-resumable
30-1 High pressure switch HPS2 failure
33-0 EEPROM failure AT24C04 EEPROM communication failure Once
confirmed
un-resumable
33-2 AT24C04 EEPROM data check failure (model code, check sun
etc.)
33-3 AT24C04 EEPROM data check failure (data beyond limit, reverse
sequence etc.)
34-0 Discharging temp too high protection
(Td1)
ÒéÝç"$(Ϥ!" Ì¥æòñ÷ìñøèöòùèõ"ö÷ëèñö÷òóäñçäïäõð
the alarm condition after stopping the oil temperature below 50
°F(10 °C), automatic recovery after 2min50s. Four times an hour
to confirm the fault
Once
confirmed
un-resumable
34-1 Discharging temp too high protection
(Td2)
35-0 4-way valve reversign failure If below conditions are met for more than 10 seconds after the
4-way valve is energized for 10 minutes, reversing is finished.
Ýëìöòø÷çòòõæòðóõèööòõìöõøññìñêñòõðäïïüÝç!òõÝç"¡Ýçèé!
% Ϥ! Ì¥Ýòæì¡Ýäò"%ÏÙç¡Ùö$$óöìò÷ëèõúìöèéäìïøõè
is confirmed if the system alarms more than 3 times in one hour.
Once
confirmed
un-resumable
35-1 4-way valve reversin failure If there is 4-way valve of sub unit not electrified after main unit
heating detection starts up for 20 min, Failure is confirmed if
detection occurs more than 2 times in one hour.
Once
confirmed
un-resumable
36-0 Oil temp too low protection (Toil1) In normal operation,if Toil < CT+ 50 °F(10 °C) for continuous 5
minutes,the unit is stopped and alarmed 2 minutes and 50 s
later, then is resumed automatically. If it occurs 3 times in an
hour, the failure is confirmed.
Once
confirmed
un-resumable
36-1 Oil temp too low protection (Toil2)
39-0 Low pressure sensor Ps too low
protection
After compressor is running (except for residual operation),
if in cooling, Ps < 1 psi or in heating, Ps < 7 psi for continuous
5 minutes, alarm and stop. 2 minutes and 50 s later, resume
automatically. If it occurs 3 times in an hour, the failure is
confirmed.
Once
confirmed
un-resumable
39-2 Compression ratio too high protection Êé÷èõæòðóõèööòõìöõøññìñêæòðóõèööìòñõä÷ìò! éòõ
continuous 5 minutes, stop and alarm. 2 minutes and 50 s later,
resume automatically. If it occurs 4 times in an hour, the failure
is confirmed.
40 High pressure sensor Pd too high
protection
ÒéÙç& "óöìäïäõðäñçö÷òó"ðìñø÷èöäñç% öïä÷èõõèöøðè
automatically. If it occurs 3 times in an hour, the failure is
confirmed.
Once
confirmed
un-resumable
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