Bryan Boilers & 300 ユーザーズマニュアル

 

Date:  

8-4-2010 

 

Revision: 0 

 

Form:  

2396

 

applicable for the functional group on the page 
(Figure 16). 
 

 

These parameters can be edited, and when the 
user is finished, control returns back to the 
configuration menu page.  Each parameter is 
displayed in its group. If there are more 
parameters than will fit on the screen, a vertical 
scroll bar allows the user to scroll up and down 
to view all parameters.  The parameter name is 
displayed on the left and the current setting is 
displayed in the text box on the right. 
 

Any user can view the configuration parameters 
(default mode). No access-level password is 
required to view the parameters.  A valid 
configuration password for the parameter’s level 
must be entered before the parameter can be 
changed.  The password need only be entered 
once while the user remains on the configuration 
pages.  Leaving the configuration pages ends 
the scope of the password entry.  The user is 
notified that a new password is needed upon the 
first attempt to change a parameter (or until a 
password is entered successfully). The user can 
continue viewing the configuration parameters 
regardless of whether a password is entered 
successfully. 
 
The boiler also maintains a password timeout 
that limits the scope of the password entry. 
Once a password is successfully entered the 
boiler 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. 
 
The user enters the password from a keyboard 
as shown in Figure 13.  After the password is 
entered, select the OK button.  The Cancel 
button aborts the password login. 
 

Three levels of write access to boiler parameters 
are permitted. Each access level has defined 
rights when interfacing with configuration and 
status parameters in the Boiler. 
 

•  End user:  

The lowest access rights (no 

password login).  The end user can, in most 
cases, only read or view boiler parameters. In 
some instances the end user can change boiler 
parameters, e.g., change the CH, central heat, 
setpoint. 
 

•  Installer: 

The next highest level. The installer 

can read all boiler parameters and change most 
boiler parameters. This access level is used to 
customize the boiler for a particular installation.  
The default installer password is ‘bryan’. 
 

• OEM: 

The highest access level. The OEM can 

read and change all R7910 parameters, as well 
as change sensor limits and burner control 
safety parameters

. 

 

19 

 

Different passwords exist in the boiler for each 
access level. The end user level requires no 
password, but the installer and OEM levels have 
unique passwords defined for them. The display