York EX Series Installation, Operation & Maintenance Instructions Manual page 96

SECTION 6 – OPERATION
• Heating: how long the chiller-heater has been
running in heating mode
• Solution Pump: how long the solution pump has
been running.
• Refrige. Pump: how long the refrigerant pump
has been running.
• Burner: how long the burner for the chiller-heat-
er has been running
The frequency of failures, alarms, and purges is shown
in the Frequency section:
• Operation: displays how many times the chiller-
heater has started using the OPER. button or a
remote start signal.
• Cooling: displays how many times the chiller-
heater has started using the OPER. button or a
remote start signal in cooling mode
• Heating: displays how many times the chiller-
heater has started using the OPER. button or a
remote start signal in heating mode
• Start: displays how many times the burner has
started.
• Failure: displays how many times the system has
experienced a failure.
• Alarm: displays how many times an alarm has
been activated.
• Auto Purge: displays how many times the auto-
matic purge system has started.
To move to the Trend screen, press the Trend button at
the upper right of the screen.
96
The History Menu section on the right side of the
screen gives you access to the operation history, Alarm
History and to the Failure History screens. It contains
four buttons:
• Hourly Operation: move to the Hourly Opera-
tion History screen
• Minutely Operation: move to the Minutely Op-
eration History screen
• Failure History: move to the Failure History
screen
• Alarm History: move to the Alarm History screen
The Maintenance Information section contains three
buttons. They provide information on how long it has
been since maintenance was done. They also indicate if
maintenance is required. The buttons are:
• Solution Analysis or Ctrl. Pn. Parts Replace:
Information on the last time solution analysis was
performed or information about parts of the con-
trol panel that need maintenance.
• Solution Pump Overhaul or Ref. Pump Over-
haul: Information on the last time the solution
pump or the refrigerant pump were overhauled.
• Combustion Check or Burner Parts Replace:
Information on the last time a combustion check
was done or how long it has been since any of the
burner parts were replaced.
If the lettering on any of the buttons is red, immediate
attention is needed.
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
JOHNSON CONTROLS