To Turn Off Oil to Appliance:

i.Set the thermostat to the lowest setting and set the operating mode switch to “OFF”.

ii.If service is to be performed, turn off the electrical power to the appliance.

iii.Turn the manual oil shutoff valve to the “OFF” position.

2. Adjustment of Burner Combustion:

: Maximum gross stack temperature must not exceed 550°F (288°C) under any circumstances.

: Do not run the oil pump dry for more than five minutes, as irreparable damage may result.

NOTICE: Read the burner operation and service instructions, Model AFG Oil Burner Instruction Manual, before continuing.

To initially adjust and successfully service the oil burner in the appliance heating section, the following test instruments are required:

A smoke density measuring and rating device,

A carbon-dioxide (CO2) or oxygen (O2) analyzer,

A flue gas temperature measuring device (e.g., thermocouple or thermister probe with readout device),

An analog or digital multimeter, and

An oil pressure gauge capable of reading 0-150 PSIG.

To initially fire the oil burner, proceed in the following manner:

a.Turn the disconnecting switch, which provides power to the appliance, to the "OFF" position.

b.Set the room thermostat above room temperature.

c.Verify the oil tank is filled with sufficient fuel oil to operate the appliance.

d.Open all valves in the oil supply line to the burner.

e.Remove the burner compartment cover from the appliance.

f.Open the inspection cover on the upper mounting plate above the burner.

g.Turn the disconnecting switch to “ON”.

h.Prime the pump to remove air in the oil supply line.

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Thermo Products OHFA199DV5B, OHFA199DV5R operation manual To Turn Off Oil to Appliance, Adjustment of Burner Combustion