York YHAU-CW Manual page 126

SECTION 6 – OPERATION
TABLE 26 - ALARM LIST (CONT'D)
BUTTON LABEL
(ALARM NAME)
HG Hi Conce.
High solution concentration and load limit
Prevent. (HG High
operation was activated. The alarm resets
Concentration
after 600 seconds.
Prevention Control)
• Chilled water inlet temperature sensor,
cooling water inlet temperature sensor,
and/or absorber temperature sensor
detected abnormal value, due to
disconnection, short circuit, or other
Recording Sensor
abnormal sensor readings. Remote
Abnormal
setting signal was abnormal during remote
SP mode (remote chilled water outlet
temperature setting mode)
• Press the ALARM RESET button to clear
the alarm.
• Voltage level of the battery in the control
board fell down.
Low Battery Voltage • Press the ALARM RESET button to clear
the alarm after you replace the battery in
the control board.
ELB Trip (Earth
The Earth leakage breaker for the surge
Leakage Breaker
arrester activated.
Trip)
126
CAUSE OF ALARM AND
CONDITION TO RESET
COUNTER MEASURES
• Check the cooling water line.
• Check the cooling water flow rate.
• Check the cooling tower.
• Purge manually (according to instructions in
SECTION 7 – MAINTENANCE).
• Contact your local Johnson Controls Service Center.
• Check the remote setting signal.
• Tighten the terminal.
• Contact your local Johnson Controls Service Center.
Replace the battery on the PWB.
Contact your local Johnson Controls Service Center.
FORM 155.31-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
JOHNSON CONTROLS