Combustion Adjustment - Harsco Industrial 1004905923 Installation & Owner's Manual

Menu Menu
Standby Standby
Information Information
Errors Errors
3.11.1.2 Configuring the Control
First push the MENU button and then select PROGRAM PARAMETERS from the menu. A screen opens that
allows the user to view and change various operating parameters.
Parameters Parameters
CH settings CH settings
DHW settings DHW settings
Boiler settings Boiler settings
CH settings CH settings CH settings
Setpoint Setpoint Setpoint
BLR OP BLR OP BLR OP
CH mode CH mode CH mode
CH settings CH settings
Setpoint Setpoint
Value: Value: 180°F 180°F
Range: Range: 45°F – 185°F 45°F – 185°F
3.11.1.3 Other Control Parameters
Other parameters are available and may be changed by contacting the factory for assistance. The ENVI
Getting Started Guide contains additional information regarding the operation of this control.
NOTICE! Changing parameters requires an understanding of the parameters and the functionality of the boiler.
The boiler may not function properly if parameters are changed from the factory values.
3.12 C A
OMBUSTION DJUSTMENT
There is no required start-up or field adjustments for air flow control. The air flow is set at the factory.
3.12.1 Fuel/Air Ratio Adjustment
The fuel/air ratio is controlled by the automatic air gas ratio valve. This valve is adjusted at the factory to give 5.8-
6.5 % O2 at high fire and 7.0-7.5% O2 at low fire in the exhaust gas. However, the fuel/air ratio should be
The menu includes access to the STANDBY, INFORMATION,
ERRORS, PROGRAM PARAMETERS, CONFIGURATION,
CASCADE, and SERVICE menus. The UP and DOWN buttons
are used to position the arrow next to the desired option and the
ENTER button is pushed to access that option.
Select the CH SETTINGS to adjust parameters related to the
boilers Comfort Heat function.
For example, selecting the SETPOINT parameter opens up a
screen that allows the setpoint to be changed.
180°F 180°F 180°F
1 1 1
0 0 0
The UP or DOWN buttons are used to adjust the CH setpoint up
or down as desired.
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MODU-FIRE Forced Draft Gas-Fired Boiler 2500-3000
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Control