•
Combustion Check or Burner Parts Replace:
Information on the last time a combustion check
was done or the last time any of the burner parts were replaced.
If the lettering on any of the buttons is red, immediate attention is needed.
Solution analysis/control panel parts replacement screen
Figure 55: Solution analysis/control panel parts replacement screen
The solution analysis section of the screen shows the maintenance interval and current operation
hours from when the last inhibitor solution maintenance was performed.
Keep the inhibitor concentration within the proper range to prevent corrosion. Periodic analysis of
the solution and addition of inhibitor is required.
When maintenance is overdue, the maintenance alarm is activated with the warning “Solution
analysis should be done.” When the warning appears, contact your local Johnson Controls Service
Center.
The control panel parts replacement section of the screen shows the maintenance interval and
current operation hours from when the last control panel maintenance was performed.
Periodic maintenance prevents malfunctions of the control panel. It also helps keep safety devices
from deteriorating.
When maintenance is overdue, the maintenance alarm is activated with the warning “Control panel
parts should be replaced.” When the warning appears, contact your local Johnson Controls Service
Center.
Model YHAU-CGN/H-CXR(M)Double Effect Direct Fired Small Absorption Chiller-Heater
110
