Status & Fault History; Sensor Resistance - RBI IEW-199 Installation And Operation Instructions Manual

BOILER CONTROL: INTERNAL WIRING & OPERATION
F. STATUS & FAULT HISTORY
1. General:
The Infinite Energy boiler control allows the installer
to view the status of several key parameters. In
addition, it provides details in English about the last
15 Blocking Errors and the last 15 Lockout Faults.
The Status and Fault History can be viewed from the
Installer Menu. The Installer Menu Structure is shown
in Appendix C of this manual.
This menu can be accessed by pressing and holding
the "Menu" and "Select" keys simultaneously for 10
seconds. The " " indicator will be indicating
"Status". Press the "Select" Key to access this feature.
2. Status:
Current Supply Setpoint: The first screen indicates the
current supply setpoint. In CH Mode 0, 3, and 6 this
will be the setpoint selected from the User Menu. If
the boiler is operating an outdoor reset mode (CH
Mode 1 or 2) this value will be the target setpoint
temperature calculated based on the outdoor
temperature. In CH Mode 4, this value will
correspond to the 0-10 V signal input.
Fan Speeds: By pressing the "
view the current fan speed and the low power fan
speed. The current fan speed will be directly
comparable to the current input rate. The low power
fan speed is a factory preset software parameter that
indicates the minimum input to the boiler.
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Pressing the " " key again displays the ignition and
high power fan speed. Both of these are factory preset
software parameters that cannot be changed by the
installer. The ignition speed is the speed at which the
blower runs during the ignition period. The high
power fan speed corresponds to the maximum input
to the boiler.
Flame Signal/Failures: Pressing the "
display the Flame Signal/Failures Screen. The flame
signal is an indication of combustion stability of the
burner. If this value is below 1.7 µA (microampere)
the control will close the gas valve and the burner will
recycle through the ignition cycle. The flame signal
should be above 5.0 µA in normal operation.
If the control loses its flame signal 3 times during one
call for heat, it will lock out the control indicating,
"Flame Failure". The number of flame failures in the
history of the control is displayed below the flame
signal on the menu screen.
The control uses dual flame sensing to minimize
nuisance lockouts. See Section 10, Troubleshooting,
to address flame failure issues.
Ignition Attempts: Once again, press the "
advance to the Ignition attempts status screen. This
screen displays the number of successful and failed
ignition attempts that have been made by the control.
If excessive ignition attempts are shown on this screen,
reference Section 10, Troubleshooting.
34
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" key the operator can
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" key again will
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" key to
Boiler Run Time: Pressing the "
advances the menu to show Boiler Run Time. This
indicates the number of hours that the boiler has
operated under CH or DHW demand. The values are
rounded to the nearest hour.
3. Fault History:
The following sections provide instructions on how to
access the fault history that is stored on the control.
The control stores the last 15 blocking errors and the
last 15 lockout errors and allows the installer or
service person to review the fault history of the
control.
Section 10, Troubleshooting, provides detailed
descriptions and troubleshooting approaches to the
errors reported by the control.
Last Block: By continuing to press the "
status menu displays the following screen. The last
block indicates the last blocking error (error that does
not cause a lockout). The first number indicates the
time interval in minutes since the previous error. The
#EXX represents the Error Code which can be
referenced in Section 10, Troubleshooting. The last
two lines provide an English description of the error.
Last Lock: The next screen accessed by pressing the
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" " key provides information about the last lockout
error. Again the first number represents the interval
since the last lockout error. #AXX represents the Fault
Code which can be referenced in Section 10,
Troubleshooting. Again the last two lines provide an
English description of the fault.
G. SENSOR RESISTANCE
See Figure 8.7 for typical resistance of the boiler sensors.
Figure 8.7: Sensor Resistance
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