Adjusting The Air/Gas Mixture - Frymaster BIGLA30 Series Service Manual

Wrap the motor and wires
with plastic wrap or a
4. Remove the plastic wrap from the blower motor assembly. Reassemble the blower motor assembly and
blower housing. Reinstall the blower shield.
5. Reinstall the blower assembly in the fryer and reconnect the wiring disconnected in Step 1.
6. Light the fryer in accordance with the procedure described in Chapter 3, Section 3.1.2 of the BIGLA30
Series LOV™ Gas Fryer Installation and Operation Manual (P/N 819-6286).
7. After the burners have been lit for at least 90 seconds, observe the flames through the burner viewing ports
located on each side of the combustion air blower.
Left Viewing
Port.
The air/gas mixture is properly adjusted when the burner manifold pressure is in accordance with the
applicable table on page 1-6 and the burners display a bright orange-red glow. If a blue flame is observed
or if there are dark spots on a burner face, the air/gas mixture requires adjustment.
NOTE: Opening the air shutter too much may result in whistling. It should not be more
than 1/3 open.

1.9.7 Adjusting the Air/Gas Mixture

On the side of the blower housing opposite the motor is a shutter plate with a locking nut. Loosen the nut
enough to allow the shutter to be moved, then adjust the position of the shutter to open or close the air intake
opening until a bright orange-red glow is obtained, then close it slightly. Carefully hold the shutter in position
and tighten the locking nut (see illustration on the following page).
plastic bag.
Blower Wheel
1-10
Blower Housing
Right
Viewing Port is
behind motor.