JOHNSON CONTROLS
131
SECTION 8 – TROUBLESHOOTING
FORM 155.33-ICOM2.EN.GB
ISSUE DATE:12/4/2017
8
Power failure
Power failure interval is shorter
than the controller back up interval
Power failure interval is shorter
than 5 minutes
Power failure interval is shorter
than 1 hour.
Continue running machine
Re-start using the Control Panel
located on the chiller-heater. Monitor
until chiller-heater returns to normal
operation. Purge directly from the
absorber. Stop the machine to ensure
the dilution operation takes place. The
dilution operation takes approximately
15 minutes.
Power is restored
Chiller-heater stops
No
If the power is not restored within 4-5
hours, the solution in the unit may be
crystallized. Contact your local Johnson
Controls Service Office for assistance.
Re-start using the Control Panel
located on the chiller-heater. Monitor
until chiller-heater returns to normal
operation. Purge directly from the
absorber.
No
Yes
Yes
No
Yes
FIGURE 46 -
ACTIONS TO TAKE AGAINST POWER FAILURE
ACTIONS TO TAKE AGAINST POWER FAILURE
If the main power fails, take the following actions.
