York YHAU-CW - Actions to Take against Power Failure; FIGURE 62 - Actions to Take against Power Failure

JOHNSON CONTROLS
166
FORM 155.31-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
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. Monitor until chiller
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 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. Monitor until chiller returns
to normal operation. Purge directly from
the absorber.
No
Yes
Yes
No
Yes
FIGURE 62 - ACTIONS TO TAKE AGAINST POWER FAILURE