Bryan Boilers Triple-Flex 150 ユーザーズマニュアル

 

Date:  

8-4-2010 

 

Revision: 0 

 

Form:  

2396

 

validates all password entry attempts with the 
boiler, but doesn’t conduct the validation itself. 
The boiler has sole responsibility to accept a 
password entry. 
 
The display gets information from each boiler 
about the access level settings for the status 
and configuration parameters. 
 
The installer and OEM passwords can be 
changed in the boiler after logging in with the 
current password. When the password is 
changed at the S7999B1026 it is saved in the 
R7910 and effective for all future logins. 
 

Each boiler in a multi-boiler configuration has its 
own set of installer and OEM passwords. To 
avoid user confusion the passwords should be 
changed to the same setting in all the boilers, 
but there is no requirement to do so. 
 

 

 
Change parameter settings by selecting the 
parameter on the page.  A dialog box displays 
for the parameter with controls allowing the user 
to change the value (Figure 17). 
 
 
After changing the setting to a new value, press 
the OK button.  Pressing the Cancel button 
leaves the parameter unchanged. 
 
The changed setting is reflected on the screen 
and sent to the boiler when the OK button is 
pressed. 
 

There are two classes of parameters. 
 
Non-Safety:  

Non-safety parameters can be 

changed without placing the boiler in a 
dangerous state.  These parameters typically do 
not require a password to modify. 
 
Safety:  

Safety parameters can be viewed the 

same way non-safety parameters can be 
viewed. If the user makes no attempt to change 
a safety parameter, the user isn’t required to 
enter safety verification mode.

 

 
Safety parameters are grouped into blocks that 
include only safety parameters, not a mixture of 
safety data and non-safety data.  All parameters 
within the safety group undergo a verification 
process, (see paragraph 2.2.9 Safety 
Verification).  A safety parameter group is 
identified on the display to indicate when the 
configuration parameters are safety-related. 

 

 
For safety configuration parameters, safety 
verification is required to commit the changes.  
 
All safety configuration parameters in the group 
should have the same access level. If this 
condition isn’t so, the user is asked to enter 
another password when a higher access level is 
needed. 
 
Each safety parameter group is verified one at a 
time until all have been verified (Figure 18).

  

20