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
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
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
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Date: 8-4-2010
Revision: 0
Form: 2396
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.
2.2.10FAULT/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.
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