IBC V-10, Manual, Page: 71 / 103

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9.0 Other operating procedures
This section describes other settings that heating professionals can use when operating, servicing, or
troubleshooting a boiler.
Testing the fan operation
Testing the firing rate
Calibrating the fan
Performing a manual pump purge
Limiting the minimum and maximum firing rate of the boiler
Adjusting the space heating temperature
Adjusting the domestic hot water temperature
Checking the water flow in the boiler
Setting Overrides
Backing up and restoring a boilers' configuration and settings
Restricting access to areas in a controller
Switching a boiler to unoccupied "away" mode
Resetting configured settings in a boiler to factory defaults
Changing and updating date and time
Changing default error lockout time periods
Changing default units of measurement displayed on the controller's screens
Setting the venting material
Programming a replacement touchscreen controller
9.1 Testing the fan operation
When a boiler is not heating, you can test its fan heat output. For all models (excluding the G3 models),
the fan heat output MBtu value should match closely the heat output MBtu value.
The test also includes the vent factor. A lower vent factor value indicates a shorter vent while a higher
vent factor value indicates a longer vent. These values are useful for troubleshooting issues such as a
blocked vent. To view the fan model, go to > Boiler Information > Fan Type .
To test the fan’s heat output:
1. Go to > Test Operation .
2. In the Fan Test: Heat Out field, tap 0 MBtu , then enter a heat value between 0 and 260 > OK .
Note that exiting the screen will stop the fan test.