York EX Series - Actions to Take against Power Failure; FIGURE 68 - Actions to Take against Power Failure

JOHNSON CONTROLS
174
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
SECTION 8 – TROUBLESHOOTING
ACTIONS TO TAKE AGAINST POWER
FAILURE
If the main power fails, take the following actions.
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
10 minutes.
Power is restored
Chiller-Heater stops
No
If the power is not restored within 4-5
hours, the solution in the absorber
may be crystallized. Contact your local
Johnson Controls Service Ofce 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 68 - ACTIONS TO TAKE AGAINST POWER FAILURE