A.O. Smith 100 Series, Руководство по обслуживанию

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Servicing should only be performed by a Qualified Service Agent
CONFIGURATION PASSWORD
Some parameters require a valid configuration password be entered by the user before the parameter can be changed. The password
need only be entered once while the user remains on the configuration pages and stays active. The display times out after 10 minutes
of inactivity. User will have to login again if another secure parameter needs to be changed by pressing the Padlock button.
Three levels of access to Burner Control parameters are permitted. Each access level has defined rights when interfacing with
configuration and status parameters within the controls.
• End user: The end user can read or view the control parameters and be allowed to change some operating parameters, CH
setpoint as an example. (The end user does not need password).
• Installer: The installer can read all control parameters and change default allowed parameters. This access level is used to
customize the control for a particular installation.
• OEM: The OEM can read and change all parameters, change sensor limits and burner control safety parameters.
Different passwords exist in the Burner Control for each access level. The end user level requires no password, but the installer and
OEM levels have unique passwords defined for them.
The installer and OEM passwords can be changed in the Burner Control after logging in with the current password. When the
password is changed, it is saved for all future logins.
Note: For the S7999D System OI display, each boiler/water heater in a multi-boiler/water heater configuration has its own set of
installer and OEM passwords. To avoid user confusion, the passwords should be changed to the same password in each control, but
there is no requirement to do so. Make sure to record your password.
The user is notified that a new password is needed to change a parameter (or until a password is entered successfully)—see Figure
35. The user can continue viewing the configuration parameters regardless of whether a password is entered successfully.
The Burner Controls maintain a password time-out that limits the scope of the password entry. Once a password is successfully
entered, the control starts an internal timer that expires after 10 minutes of inactivity. After the timer expires, the user is required to
re-enter a password before a parameter can be changed.
The user is not required to enter a configuration password for a parameter that has a lower access level than the access level
achieved by an earlier password entry for any configuration group (as long as the user stays in the configuration pages). The user
only needs to enter a password once until a parameter that has a higher access level is selected.
KEYBOARD
Some pages request user entry of characters. When this type of input is required, a keyboard page appears, as shown in Figure 36
on Page 51. The text box at the top of the screen displays the current (or default) setting of the user input. The user can add to 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 key toggles the
keyboard from one mode to the other (continuous pressing of the Shift button is not required). The OK button should be pressed when
the user is done entering the text input. The Cancel button on the bottom of the screen allows the user to ignore any text changes
that have been made and keep the original text value. Pressing the OK or Cancel buttons returns the user to the page displayed prior
to the keyboard page.
FIGURE 35. LOGIN REQUIRED