M
ODEL
400 R
ESTAURANT
R
ANGES
A
DJUSTMENTS
O
PERATOR
’
S
M
ANUAL
1182299
REV
3 (05/05) D
RAFT
P
AGE
29
OF
64
ADJUSTMENTS
Suspend a thermocouple on the
center of the oven rack in the
center of the oven.
Check that the oven bottom is
in place.
Check that the blower baffle is
bolted in place. C.O. base only.
Check that the thermostat bulb is
in the bracket and centered.
Oven Thermostat Calibration
Raise the kick panel slightly and
rotate forward.
Remove the knob, bezel and valve
cover panel.
See flowchart on page 35 for
burner troubleshooting.
Put the bezel and knob on the oven
thermostat.
Set the oven thermostat to 400
°
F.
Check the burner for poor
operation through the hole behind
the kick plate while the oven is
heating.
After oven temperature is stabilized
observe that the flame has
decreased.
Set the oven knob to the midpoint
between the two lines just after the
OFF position.
This is the bypass setting.
Check that there is a ¼ in. flame
at each port.
If the flame is not correct remove
the knob and bezel.
If no flame is established put a
flame to the mixer face at the
burner shutter to check for gas
flow.
Turn the screw counter clockwise
to establish or increase the flame.
There is a slotted screw below the
stem on the thermostat valve (see
page 28).
If gas is flowing turn the bypass
screw until flame is set to
specifications.
Turn the screw clockwise to
decrease the flame.
Continues on Next Page
If no flame can be established at
the bypass setting replace the
thermostat.
