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APEX Installation, Operating, & Service Instructions APEX Installation, Operating, & Service Instructions
Figure 10-6: Main Menu Screen
2. MAIN MENU provides access to all display functions. It is accessible from the Home Screen. The following
major user interface areas are accessed from the Main Menu:
a. STATUS provides a “walk” through of
boiler operation. These screens provide
an overview of boiler and networked boiler
operation. Status screens include “Load
Profile” for Central Heat and Domestic
Demands. These profiles allow the user to
review the Run Hour (%) versus Load (%).
The “Load Profile” along with run hours and
cycles provides a complete picture of boiler
status.
b. OPERATION screens allow the user to
take manual or automatic control of the
unit. These screens are intended to allow
a technician to set firing rate to support
combustion testing and provide trending
and parameter adjusting to support
fine tuning the boilers response to load
changes. Operation screens may be used
to speed up or slow down the boilers
response to fast or slow system load
changes.
c. ARCHIVES collect history of how the boiler
has operated and provide tools to review
and improve system operation.
i. Historical Trend – Up to four (4)
months of data is collected and may
be viewed on screen or saved to a
Thumb Drive.
ii. Lockout History – provides data on
up to 15 manual reset Lockouts.
Data collected includes cause of
boiler trip, run hour and status when
lockout occurred.
iii. Cycle & Run Time History – collects
the usual summary of cycles and
hours of boiler and pump operation.
All cycles and run hours other than
the controller quantities may be reset
to aid in identifying improvements
made.
iv. Alarm History – limit string faults,
holds, manual reset lockouts and
other alarms are recorded with time
and date stamp.
v. Thumb Drive Operation – these
screens provide ability to save or
load parameters as well as alarm
and trend data.
d. SENSORS provides status and details on all
sensors connected to the control.
e. EMS allows the user to access setup
options and status for an energy
management system (EMS).
f. HELP displays active alarms and corrective
actions.
g. QUICK SETUP presents commonly
required parameters for quick review and
adjustment.
h. ADJUST presents each adjustable
parameter for adjustment. Proper login is
required.
F. Quick Setup
Quick Setup is accessed from the Main Menu.
Quick Setup allows the user to review and adjust
the most commonly adjusted parameters, such
as setpoints and pump output settings, from one
location. Refer to Parameter Adjustment section
for additional information.
Table 10-7: Setpoints
Parameter and Description
Factory
Setting
(°F)
Range /
Choices
(°F)
Central Heat Setpoint 180 50 to 190
Central Heat Difference Above 7 2 to 25
Central Heat Difference Below 5 2 to 25
Domestic Hot Water Setpoint 170 50 to 190
Domestic Hot Water Difference
Above
7 3 to 29
Domestic Hot Water Difference Below 5 3 to 29
Frost Protection Setpoint 0 -50 to 50
Warm Weather Shutdown Setpoint 70 20 to 100
Stop All Boilers 195 50 to 195
10 Operation (continued)
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