Burnham Apex APX399 User Manual

86
X. Operation E. Boiler Sequence Of Operation (continued)
2. Using The Display
The Control includes a touch screen LCD display. The user monitors and adjusts boiler operation by selecting screen
navigation “buttons” and symbols. Navigation features are shown below.
The “Home Screen” and menu selections are shown below. When no selection is made, while viewing any screen, the
display reverts to the “Home Screen” after 4 minutes. The “Home Screen” displays boiler temperature, boiler status and
Efciency Information. “Energy Save On” indication appears when the outdoor reset or setback features have lowered the
Central Heat Setpoint based on outside air temperature measurement or time of day. “Max Efciency On” appears when
the boiler return temperature has been reduced low enough to cause energy saving ue gas condensation.
180 F
Boiler 1
Energy Save On
Max Efficiency On
Standby
i
Status
Help
Adjust
Detail
Home Screen
Help Menu
(see Figure 60)
Detail Menu
(see Figure 55)
Status Screens
(see Figure 54)
Adjust Mode Screens
(see Figure 56)
Supply
180 F
180 F
Rate
0%
Status: Standby
Setpoint
Boiler 1
>
<
Priority:
Central Heat
i
Central Heat
Domestic
Hot Water
Outdoor
Reset Curve
Warning! Only Qualified Technicians
Should Adjust Controls, Contact Your
Qualified Heating Professional
Improper settings or service create risk of
property damage, injury, or death.
Service Contact Adjust
Lockout
History
Service
Contract
Boiler Size
Setup
Sequencer
Setup
Active Faults
i
Supply
180 F
180 F
Rate
0%
Status: Standby
Setpoint
Boiler 1
>
<
Priority:
Central Heat
i Active
Fault
180 F
Boiler 1
Energy Save On
Max Efficiency On
Standby
i
Status
Help
Adjust
Detail
Home Screen
Status Screen
Menu Button
The Home Screen Menu Buttons connect the displays four main display
groups; Status, Detail, Help and Adjustment Screens.
Close Symbol
The “Close” symbol returns to the display to previous menu or screen.
Repeatedly pressing the “Close” symbol will always return the display to the
“Home” screen.
Arrow Symbol
The “Arrow” symbol links together all screens in the selected group. For
example, repeated pressing the right “Arrow” symbol will rotate the display
around all the screens in the Status group. Using this feature the user can
review all the boiler status and adjustment mode screens.
Fault Symbols
“Active Fault” and “Rate Limit” symbols provide a link to the cause of a boiler
fault or firing rate limit. The first boiler status screen provides an overview of
boiler operation including fault status.
Information Symbol
“Information” symbol links most screens to screen content explanations. New
terminology used in status and adjustment screens are explained in plain words.

Burnham Apex APX399 Specifications

General

Brand	Burnham
Model	Apex APX399
Category	Boiler
Language	English