Error Mode - Ace Heating Solutions Atlas A050 Operating And Maintenance Manual

Symbol
A
Alert
Lockout
Outlet
Stack
DHW
Min & Max
Alerts
Alerts are abnormal events that do not require manual intervention to reset the Honeywell Sola Controller. Alerts can be
faults from non safety functions. The last received Alert number is displayed with the Diag icon. Pressing the Reset button
clears the Alert number.
Lockouts
Lockouts cause the Honeywell Sola Controller to shutdown and require manual or remote reset to clear the lockout.
Lockouts always cause the Alarm contacts to close. The last received Lockout number is displayed with the Diag icon.
Pressing the Reset button clears the Lockout number and resets the Honeywell Sola Controller.
Firing Rate Adjustment — Initial Screen
The Min icon is displayed with the Diag icon. This screen indicates that the Honeywell Sola Controller is going to enter
firing rate adjustment mode. Pressing the Next button forces the Honeywell Sola Controller to enter the state where all
calls for heat are ignored and the Basic Panel switches to the next screen of the Diagnostic Mode.
Firing Rate Adjustment — Minimum Rate
The Min icon is flashing and the Diag icon is solid. In this mode a demand is sent to the Honeywell Sola Controller and is
forced to run at 10% of firing rate. The Firing Rate value display is alternated with the Outlet Temperature display. After a
certain period of user inactivity or when the Done button is pressed, the Honeywell Sola Controller is forced to accept all
calls for heat and the Basic Panel leaves the Diagnostic Mode and switches to the User Mode's current home screen. If
the Next button is pressed, it causes Basic Panel to display the next screen of the Diagnostic Mode.
Firing Rate Adjustment — Maximum Rate
The Max icon is flashing and the Diag icon is solid. In this mode a demand is sent to the Honeywell Sola Controller and is
forced to run at 90% of firing rate. The Firing Rate value display is alternated with the Outlet Temperature display. After a
certain period of user inactivity or when the Done button is pressed, the Honeywell Sola Controller is forced to accept all
calls for heat and the Basic Panel leaves the Diagnostic Mode and switches to the User Mode's current home screen. If
the Next button is pressed, it causes Basic Panel to display the next screen of the Diagnostic Mode.
Firing Rate Adjustment — Manual Rate
The Rate icon is flashing and the Diag icon is solid. In this mode a demand is sent to the Honeywell Sola Controller and is
forced to run at 90% of firing rate. The Firing Rate value display is alternated with the Outlet Temperature display.
Pressing the Up or Down buttons changes the displayed firing rate value in 1% increments within a range 10% to 90%.
After certain period of user inactivity or when the Done button is pressed, the Honeywell Sola Controller is forced to
accept all calls for heat and the Basic Panel leaves the Diagnostic Mode and switches to the User Mode's current home
screen.

3-7 Error Mode

Hold
A Hold Code is displayed in the numerical part of the display when a Hold state is received. Burner state sequence icons
reflect the current state of the Honeywell Sola Controller. There is no way to leave this state through user intervention on
the Basic Panel.
Value
Flame Signal
Alert
Lockout
Outlet Temp High Limit
Stack Temp High Limit
DHW Temp High Limit
Firing Rate Adjustment
Table 3.3 – Diagnostic Mode Description
42
Description
Display current flame signal strength value in
VDC.
Display last Alert code number (See Appendix A
for description).
Display last Lockout code number (See
Appendix B for description).
Display current outlet temperature high limit
setting.
Display current stack temperature high limit
setting (if supplied with unit).
Display current DHW temperature high limit
setting (if supplied with unit).
Display and modify boiler firing rate value.
Rev 2.1