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Date: 8-4-2010
Revision: 0
Form: 2396
A verification step is required for each safety
parameter block that is changed. The verification
steps do not have to be completed immediately;
the user can traverse between parameter
groups before the verifications are done. If the
user is logged in with the appropriate password
and has changed a safety configuration
parameter, a verify button is enabled that allows
the user to conduct verification sessions.
If the user terminates the safety configuration
session after it has started, the boiler is left in an
un-configured (boiler will not operate) state.
The user can terminate the session by pressing
the Menu button or by attempting to leave the
Verification page with the Home or Back buttons
(top-left and -right screen corners, respectively).
The user is warned that leaving the session at
this point leaves the boiler in an un-configured
state and confirms whether the user still wants
to do so.
The settings of all parameters in each safety
block must be confirmed to commit them to the
boiler.
Selecting the begin button will start the
verification process. The settings for all safety
parameters in each changed block are
presented and confirmed by the user (Figure
19).
Press the
Yes button to confirm each safety
parameter block. If the user selects the No
button, the safety parameter block remains
unconfirmed and the configuration menu page is
displayed. The boiler remains in an un-
configured state in this case.
Figure 19 Safety Parameter User Confirmation
After all safety parameter blocks have been
confirmed, the user is asked to press and hold
the reset button, (Figure 3 item 7), on the boiler
to complete the safety configuration session
(Figure 20).
Figure 20 Safety Parameter Reset
When the Reset button is pressed and held for 3
seconds the confirmed safety parameters are
committed in the boiler. The above reset dialog
box automatically closes when this step is
completed.
NOTE:
If the user doesn’t perform this step, the boiler
remains in a locked state until the user resolves
the unconfirmed safety parameters.
2.2.10 FAULT/ALARM HANDLING
Each boiler reports a fault code when a lockout
condition occurs for one of the following
annunciations:
• Burner control
• Lockout
• Lead/Lag control
A less serious alarm condition may also occur
that is treated as a warning instead of a fault.
Each boiler can report active fault and warning
codes for each annunciation.
21
Any new fault code detected in a boiler is
indicated as a lockout condition at the display.
The notification method used depends on the
page that is displayed. On the Home page the
button for the boiler with the fault turns red
(Figure 21). On a boiler status page the History