STARTING UP THE S7999B OI DISPLAY

POWER-UP VALIDATION

The Home page will appear and the “Power” LED will be blinking when the device is properly powered. Select the Setup button to adjust the contrast and sound as desired.

If the screen is dim, check the pin 1 and 2 wiring connections.

Note: An Advanced Startup screen displays for five seconds after power-up before the Home page displays. This screen allows the user to upgrade the software in the System Display and should normally be bypassed.

Three LEDs exist for I/O traffic: one for the Ethernet network port and two for Modbus™ ports. Modbus Com Port 2 is not active on this device.

1.Make sure the Power and COM1 LEDs are blinking.

2.If the LEDs are not blinking:

Make sure the proper connections have been made between the Modbus COM1 Port and the first controller device in the Modbus network.

Ensure proper wiring of the OI Display 9-pin Header Connections.

3.If connected to a BAS application, COM2 LED will blink indicating BAS traffic.

HOME PAGE (S7999B OI DISPLAY)

Make sure a screen similar to Figure 51 appears after the OI Display has completely powered up.

Figure 51.  S7999B HOME PAGE (BOILER 1 IN NORMAL OPERATION)

Figure 52.  S7999B LEAD LAG HOME PAGE

On System applications, each Burner Control System is represented on the Home page by an icon and name. Pressing the icon allows the user to zoom in on that boiler and see its specific details. These details are provided on a new page, which can include additional buttons that display additional detail and operation information, which itself leads to other pages. The pages are traversed in a tree structure method, as shown in Figure 53 on Page 52.

The Control System icons 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)

Yellow: Preparing for Start-up.

Up to 8 Systems can be displayed on the Home page. The name of each boiler is displayed next to the Control System icon button. When Lead Lag is enabled, the system header temperature and firing rate are displayed for each System. When the burner is in standby or not firing the firing rate is not displayed.

Note: The boiler name may be cut off on the Home page when all icons are present.

The Home page also includes a System Analysis button that allows the user to view status information on a system-wide (that is, multiple boiler) basis. The user can choose which status information to compare from the Burner Controls in the system.

Pressing the Setup button on the Home page displays miscellaneous setup and diagnostic functions. It also contains the setup configuration for BAS applications, under the Advanced Setup button. Pressing the Control System icon opens that control’s status page.

PAGE NAVIGATION

The Burner Control System OI Displays present information and options in a paged manner. Pages are displayed in a tree structure in which the user navigates up and down to arrive at the desired Function (see Figure 53). The page descriptions are provided below so that you can understand the purpose of each and view the selections, parameters, and information that is available or required on each.

COMMON OI DISPLAY PAGE SYMBOLS

Most pages have a Home button in the top-left corner of the screen and a Back button in the top-right corner of the screen. 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 require a password to change the parameter. An unlocked padlock indicates the password has been entered to change the parameter.

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A.O. Smith 2000, 3400, 2600 Starting UP the S7999B OI Display, Navigation, POWER-UP Validation, Home page S7999B OI Display

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