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1 Service (continued)
Service Mode Screen:
The Service Mode Screen allows the individual control
modules to override all other heat demands and operate at
a full fire condition for the purpose of combustion analysis.
Selection of the control module to be placed into Service
Mode is accomplished by pressing the SELECT button. The
control module being placed into Service Mode is shown in
the module box.
To place the unit into Service Mode, press the ON/OFF button
until ON is displayed. The control module will override all
other heat demands, however, all safeties will be active. If no
buttons are pressed, the control module will automatically
revert back to its original state after the Max Service Time
delay has expired. The default setting for the Max Service
Time is 20 minutes. To take the control module out of Service
Mode, press the ON/OFF button until OFF is displayed.
Items that can be viewed and interacted with on the Service
Mode Screen are as follows:
• Blower Power Level Indicator - A blower is depicted on
the display with a power level indicator beside it. The
level will increase and decrease indicating the
approximate power level of the blower. The display box
underneath the indicator level will display the firing rate
of the control module.
• RPM’s - The blower motor rpm that the control module
is requiring of the blower.
• Plus and Minus Buttons - By pressing the plus or minus
button the rpm of the blower motor can be increased or
decreased.
• Flame Signal - The flame signal for the control module
will be displayed in dc microamps.
Time - The time is displayed in the upper right-hand corner of
the display. It is displayed in 24 hour format. Reference the
night setback parameters on page 24 for information regarding
adjusting the date and time.
Status button - Pressing this button displays the Status Screen.
this screen shows the current status of the SYNC boiler.
Reference page 13 for more information regarding this screen.
Main button - Pressing this button displays the Main Screen.
From this screen, navigation to eight (8) other screens is
possible. Reference the Main Screen on page 17 for more
information regarding this screen.
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Service Manual