York EX Series Installation, Operation & Maintenance Instructions Manual page 113

FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
TABLE 21 - ALARM LIST (CONT'D)
ALARM NAME
Temperature difference between the
absorber temperature and cooling water
Cooling Water Tube inlet temperature widened, therefore fouling
Fouling of cooling water tube inside is likely to be
accumulated. The alarm is reset via alarm
reset.
Temperature difference between the exhaust
gas temperature and HG temperature
HG Tube Fouling widened, therefore fouling of HG tube inside
is likely to be accumulated. The alarm is
reset via alarm reset.
The Refrigerant Pump Stop button has been
Refrigerant Pump
pressed for 1 hour or longer while operation
Stop
command was output.
HG pressure rose and the load limit
HG High Pressure
operation was activated. The alarm is reset
Prevention
when the HG pressure reaches 85.3 kPa.
High generator solution temperature and
HG High
load limit operation was activated. The alarm
Temperature
is reset when solution concentration reaches
Prevention
158°C.
HG High High solution concentration and load limit
Concentration operation was activated. The alarm is reset
Prevention Control when after 60 seconds.
Cooling water inlet temperature fell down
to its lower limit or lower during cooling
Low Cooling Water
operation, and then load limit operation was
Inlet Temperature
activated. Alarm is reset when the cooling
water inlet temperature rises.
Cooling water inlet temperature rose to or
above it's upper limit or higher during cooling
High Cooling Water
operation, and the load limit operation was
Inlet Temperature
activated. The alarm is reset when the
cooling water inlet temperature falls.
Chilled / hot water inlet temperature sensor,
cooling water inlet temperature sensor, and/
or Absorber temperature sensor detected
abnormal value, due to disconnection,
Recording Sensor
short circuit, etc. Remote setting signal was
Abnormal
abnormal during remote SP mode (remote
chilled/hot water outlet temperature setting
mode) Alarm is reset via alarm reset after
temperature returns to normal.
Voltage level of the battery in the control
board fell down. Alarm is reset via alarm
Low Battery Voltage
reset after replacement of the battery in the
control board.
JOHNSON CONTROLS
CAUSE OF ALARM AND
CONDITION TO RESET
COUNTER MEASURES
• Check the cooling water line.
• Check the cooling water flow.
• Contact your local Johnson Controls Service Center.
Contact your local Johnson Controls Service Center.
Press the Refrigerant Pump Auto button.
• Check the cooling water line.
• Check the cooling water flow rate.
• Check the cooling tower.
• Purge manually (according to instructions in
SECTION 7- MAINTENANCE on Page 129).
• Contact your local Johnson Controls Service Center.
Check the cooling water inlet temperature control
system.
• Check the cooling water inlet temperature control
system.
• Check the cooling tower.
• Check the remote setting signal.
• Tighten the terminal.
• Contact your local Johnson Controls Service Center.
Replace the battery on the PWB.
SECTION 6 – OPERATION
113
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