AERCO Boiler Valve Controller (BVC) PRIOR to Serial-12-840-1 - Manual (Page 31)

OPERATION
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3.4.2 Scenario 2
In this scenario depicted in Figure 15, none of the boilers are firing and all of the valves are
open. All MOVs are placed in the “OPEN” position. A boiler MOV can be manually closed by
selecting the “Valves” touch screen.
The scenario sequence is described as follows (See Figure 15).
1. From the Main screen press the “VALVES” touch screen button (see Figure 15 – Screen1).
2. This brings the user to Screen 2 where either the “VALVES 1-2” or “VALVES 3-4” screens
may be selected by pressing their corresponding touch screen button. The user is now
brought to either the “VALVE 1-2” screen (Screen 3) or the “VALVE 1-2” screen (Screen 4).
If the “BACK” touch screen button was pressed instead, the user would have navigated back
to the Main screen.
3. On the “VALVES 1-2” screen (Screen 3) the user finds that the MOVs corresponding to the
two boilers (Boiler # 1 and Boiler # 2) are already in the “OPEN” position. Since none of the
boilers are firing, the user may close a boiler MOV by pressing that particular boiler’s
“CLOSE” touch screen button.
4. Pressing the “BACK” touch screen button returns the user to Screen 2 where the user may
either choose to select the “VALVES 3-4” screen (Screen 4) or simply press the “BACK”
touch screen button and return to the Main screen.
5. On the Main screen the user may now choose to press the “TIMER” touch screen button
and set the boiler valve delay time to close the valves.