HEAVY OIL AUTOMATIC OPERATION

Light Up & Adjustment

Make sure all fuel shut-off valves are kept open. Open furnace door and dampers.

Switch ON the control panel. Start blower and check direction of rotation. Care should be taken that discharge or the suction on the blower is closed during start-up.

Start outflow heater, oil pumps and line heaters and circulate oil through the ringmain. temperature should be in the range of 100 to 110 Deg.C. for 1500 secs. Redwood No.1 oil and oil pressure at the Ratiotrol 25 to 30 psi.

Ignition + Gas solenoid valve open	PILOT FLAME ON
Time(10S) + UV Sensor	UV Flame relay ON
UV Relay ON + Time (10S)	MAIN SOLENOID VALVE ON
Time(10S) + MAIN FLME ON	IGNITION TRNSFORMER OFF
Ignition transformer off	SOLENOID VALVE OFF
If ‘d’ fails	RESET & START FROM “”

After burner is lit, gradually open zone air butterfly control valve till the burner has reached high fire condition. Set air/fuel ratio by adjusting the sensitrol oil valve. This is the ‘HIGH FIRE’ setting. Gradually the sensitrol valve if required. Lock the sensitrol oil valve by tightening grub screw provided on the valve bonnet. Also move indicator to sensitrol handle position. This act as high fire position indictor close the zone air butterfly valve to 1/4 or less open, loosen the spring catridge lock-nut and adjust spring cartridge of the Ratiotrol to set air fuel ratio. This is “LOW FIRE” setting. Gradually increase to high fire and adjust. The air-fuel ratio of the burner is now set.