Johnson Controls York YHAU-CGH-CXR Series, Установка, пусконаладка, эксплуатация и обслуживание.

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Table 27: Failure list
Failure name
Operation at
failure occurrence
Cause Counter measures
HG High Temperature
HG solution temperature increased
abnormally
HG High Pressure HG pressure increased abnormally
High Cut
HG high pressure relay or exhaust
gas high temperature relay was
activated.
• Check the cooling water
line.
• Check the cooling water
flow rate.
• Check the cooling tower.
• Purge manually (according
to instructions in
Maintenance ).
High Exhaust Gas
Temperature
Exhaust gas temperature at HG
outlet increased abnormally.
Contact your local Johnson
Controls Service Center.
Flame Failure
Flame signal was not detected
during operation, and then protect
relay (burner controller) was locked
out
Contact your local Johnson
Controls Service Center.
HG Low Liquid Level
Stop after dilution
HG low liquid level had been
detected continuously during
combustion.
• Purge manually (according
to instructions in
Maintenance ).
• Contact your local Johnson
Controls Service Center.
Solution Circulation
Pump Abnormal
Solution circulation pump thermal
relay, or overheat switch was
activated.
Refrigerant Pump
Abnormal
Stop without dilution
Refrigerant pump thermal relay, or
overheat switch was activated.
Burner Fan Abnormal
or Oil Pump Abnormal
Stop after dilution
Burner fan thermal relay was
activated.
Contact your local Johnson
Controls Service Center.
Absorber Low Liquid
Level
Stop without dilution
Low liquid level in Absorber had
been detected continuously during
operation.
1. Purge manually, according
to instructions in Manual
method to purge non-
condensable gas directly
from absorber
2. Contact your local Johnson
Controls Service Center.
Control Sensor
Abnormal
Stop after dilution
Temperature sensor and/or
pressure sensor detected abnormal
value due to disconnection, short
circuit, or other relevant sensors
• Tighten terminal in control
panel.
• Contact your local Johnson
Controls Service Center.
CPU Abnormal Stop after dilution CPU was judged to be abnormal.
Contact your local Johnson
Controls Service Center.
Alarm
When an alarm occurs, an audible alarm does not sound (buzzer). The type of alarm lights up in
the Alarm section of the screen. To view the details of the alarm and the remedy, press the lighted
button (the name of the alarm).
After fixing the alarm, press the
ALARM RESET button to reset the lighted alarm button. If you
press the ALARM RESET button before fixing the alarm, the lit alarm button does not go out.
Model YHAU-CGN/H-CXR(M)Double Effect Direct Fired Small Absorption Chiller-Heater 126