SECTION 6 – OPERATION
FORM 155.32-ICOM2.EN.UL
ISSUE DATE:1/10/2018
110
JOHNSON CONTROLS
Table 31 -
Failure List
Low Cooling Water Inlet
Temperature
Stop after dilution
Cooling water inlet
temperature had been kept at
its lower limit or lower for 30
minutes or longer during
cooling operation
Check the cooling water inlet temperature control
system.
Cooling Water
Suspension (Option)
Stop without dilution
Cooling water suspension
detected continuously during
solution pump automatic
operation while cooling
operation.
• Check the cooling water pump.
• Check the cooling water line.
• Check the cooling water flow.
• Check the cooling water suspension relay.
• Check whether or not the pipe is clogged.
HG High Temperature
Stop after dilution
HG solution temperature rose
abnormally.
Check the cooling water line.
Check the cooling water flow rate.
Check the cooling tower.
Purge manually (according to instructions in
.
HG High Pressure
HG pressure rose abnormally.
High Cut
HG high pressure relay or
exhaust gas high temperature
relay was activated.
High Exhaust Gas
Temperature
Exhaust gas temperature at
HG outlet rose abnormally.
Contact your local Johnson Controls Service Center.
Burner Abnormal
Abnormal fuel gas (gas-fired)
or oil (oil-fired) pressure was
detected during combustion.
Burner fan thermal relay was
activated.
Check if gas supply pressure is within acceptable range.
HG Low Liquid Level
HG low liquid level had been
detected continuously during
combustion.
Purge manually (according to instructions in
.
Contact your local Johnson Controls Service Center.
Solution Circulation
Pump Abnormal
Stop without dilution
Solution circulation pump
thermal relay, or overheat
switch was activated.
Contact your local Johnson Controls Service Center.
Solution Spray Pump
Abnormal
Solution spray pump thermal
relay, or overheat switch was
activated.
Refrigerant Pump
Abnormal
Refrigerant pump thermal
relay, or overheat switch was
activated.
Control Sensor
Abnormal
Stop after dilution
Temperature sensor and/or
pressure sensor detected
abnormal value due to
disconnection, short circuit, or
other reasons not noted here.
• 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.
Solution Pump Inverter
Abnormal (Option)
Stop without dilution
Solution pump inverter
protection function was
activated, and the inverter
output was suspended.
• Check indication of inverter alarm code.
• Contact your local Johnson Controls Service Center.
