MACH
®
Gas Fired Boiler
33
3.10.4 Other Parameters
Other parameters include the settings for DHW (Domestic Hot Water), Boiler Settings and OEM Settings. Boiler and
OEM Settings are used during the initial programming of the control and are not accessible.
3.10.5 Additional Menu Items
In the main menu, Standby, Information, Errors, Program Parameters, Configuration, Cascade, and Service Menus
are available. They are used for various functions of the boiler. These functions are described further in the ENVI
®
Control Advanced User’s Guide.
These menu items will be described briefly here:
•
STANDBY is the default screen and is shown during normal boiler operation.
•
The INFORMATION menu lists items that the boiler monitors such as temperatures, operating conditions, and
status of switches and components.
•
The ERRORS menu has information about the boiler status at the time of an error.
•
The PARAMETERS menu allows the user to set up selected boiler functions and operating modes.
•
The CONFIGURATION menu covers basic display information such as language, units, date/time, etc.
•
The CASCADE menu is used to sequence multiple boilers (up to 24) in a Master/Member network system.
Use of this function is described in detail in the ENVI
®
Control Advanced User’s Guide.
•
The SERVICE menu is described below.
3.10.6 Service Menu:
Two test modes are available in the service menu.
BNR ON TEST HI LOW
BNR OFF FAN HI LOW
The first test mode allows the service technician to hold the boiler in high or low fire during firing operation so that the
combustion adjustment can be performed as indicated below. The second test mode checks the fan rate with the
burner off at high speed or at low speed.
These test modes will automatically terminate after 15 minutes of inactivity or can be terminated from the
control/display panel by pressing the cancel/reset button.
Service
BNR ON Test HI LOW
BNR OFF Fan HI LOW
Service
BNR ON Test HI LOW
BNR OFF Fan HI LOW
Service
BNR ON Test HI LOW
BNR OFF Fan HI LOW
