46Rev 2.14-4 System Operator Interface Panel Home PageFor System Operator Interface multiple unit applications, each boilers is represented on the Home page by an icon andname. Pressing the icon allows the user to zoom in on that boiler and see specific details about it. These details areprovided on a new page, which can include additional buttons that display additional detail and operation information,which itself leads to other pages.The System Operator Interface Boiler Icon button will appear in one of four colors indicating the boiler status. Blue: Normal operation Red: Lockout condition Gray: Standby mode (burner switch off) Gray and crossed out: Communication error (disconnected or powered off)Up to 8 boilers can be displayed on the System Operator Interface Home page. The name of each boiler is displayed nextto each boiler icon. When Lead Lag is enabled, the system header temperature and firing rate are displayed for each icon.When the burner is in standby or not firing the firing rate is not displayed.4-5 Page NavigationThe Operator Interface Display presents information and options in a paged manner. Pages are displayed in a treestructure in which the user navigates up and down to arrive at the desired Function. The page descriptions are providedbelow so that you can understand the purpose of each and view the selections, parameters, and information that isavailable or required on each.Most pages have a Home button in the top-left corner of the screen and a Back button in the top-right corner of thescreen. The Home button returns the user to the Home page and terminates any operation in progress. The Back button returns the user to the previous page.Two other icons may be noticed near the boiler name. A Bell will be displayed if the system is in Lockout that reset will be required. A Padlock will be shown on screens that a password is needed to change the parameter. An unlocked padlockindicates the password has been entered to change the parameter depending on the security level entered.4-6 KeyboardSome pages request user entry of characters. When this type of input is required, a Keyboard Page appears, as shownFigure 4.4. The text box at the top of the screen displays the current or default setting of the user input. The user can addto this text, clear it, or change it.The Shift key on the left side of the screen shifts between upper and lowercase characters. Pressing the Shift keytoggles the keyboard from one mode to the other. The OK button should be pressed when the user is done entering thetext input. The Cancel button on the bottom of the screen allows the user to ignore any text changes that have beenmade and keep the original text value. Pressing the OK or Cancel buttons returns the user to the page displayed prior tothe keyboard page.