Max-Ox MX-900B Operator's Manual page 33

• Feed Auger indicates "On" (green)
• Ash Auger indicates "On" (green)
• Flame symbol indication is present under the boiler icon
• Control panel Indicator light is green
Continue to monitor the heat-up of the boiler. Observe that as the boiler
supply water temperature boiler rises to within 5 °F to 6 °F of the boiler
supply set-point, the ID Fan, Feed Auger, and Ash Auger will begin to
ramp down in order to establish constant steady-state (modulated)
temperature control of the boiler supply temperature without overshoot.
MX-900B Shut-down
1. Return to Overview screen.
2. Press the Rotary Selector Switch icon to open the Combustion
Controls screen.
3. Press the "Disable" icon to dis-engage the automatic combustion
controls. The system will commence a controlled automatic shut-
down.
Note: The Indicator Light will begin to flash yellow, which indicates that a
controlled system shut-down has commenced.
Note: The Feed Auger will continue to operate until the Metering Bin fuel is
emptied in order to prevent a shut-down state burn-back of fuel into the fuel
Metering Bin.
Note: When shutting down the MX-900B, the boiler and load circulating
pumps must be operated until the fuel in the combustion chamber is
consumed. As long as there is burning fuel in the combustion chamber, the
water in the boiler will continue to absorb heat.
Max-Ox™ MX-900B Operators Manual, Rev. 0
Page 33 of 54