York YHAU-CE-JE Series, Установка, эксплуатация и обслуживание, Страница: 125 / 136

JOHNSON CONTROLS
125
SECTION 8 – TROUBLESHOOTING
FORM 155.33-ICOM2.EN.GB
ISSUE DATE:12/4/2017
8
TABLE 32 -
INTERLOCK TROUBLESHOOTING
ITEM CAUSE COUNTERMEASURE
1 There is an interlock error. The error is caused by
the chilled / hot water pump operation answerback
signal, the air conditioner operation answerback
signal, the flue damper limit switch, etc..
• Check the interlocked devices.
• Check the equipment connected as elements for an
operation interlock failure.
• Check the signals from the interlocked devices.
• Check the signals from equipment connected as
elements for an operation interlock failure.
2 There an interlock error. The error is caused by a
cooling water pump answerback signal • Check the cooling water pump.
• Check the answerback signal from the cooling water
pump.
3 There is an external interlock error. The error is
caused by the seismoscope, high room temperature
signal, etc. • Check the interlocked devices.
• Check the equipment connected as elements for a
constantly monitoring interlock failure.
• Check the signals from the interlocked devices.
• Check the signals from equipment connected as
elements for a constantly monitoring interlock failure.
4 There is an emergency interlock error. The error is
caused by the exhaust gas leak detector, etc. • Check the interlocked devices.
• Check the equipment connected as elements for an
emergency failure interlock failure.
• Check the signals from interlocked devices.
• Check the signals from the equipment connected as
elements for an emergency failure interlock failure.
TABLE 33 - PUMP TROUBLESHOOTING
ITEM CAUSE COUNTERMEASURE
1 The solution circulation pump shows an
overcurrent. The pump current value is above the
rated value.
Contact your local Johnson Controls Service Center.
2 The solution spray pump shows an overcurrent.
The pump current value above the rated value.
3
The refrigerant pump shows an overcurrent. The
pump operation current is over the rated value.
4 The solution circulation pump motor coil overheats.
5 The solution spray pump motor coil overheats.
6 The refrigerant pump motor coil overheats.