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GAS TYPE
PRESSURE READINGS (IN W.C.)
MANIFOLD
LINE
RECOMMENDED MIN MAX
Natural 5.0 8.0 6.0
14.0
Propane 10.0 11.0 11.0
NOTE: If the incoming line pressure to the valve is less than the minimum stated, then the manifold pressure will
not be maintained
VERIFICATION OF SPARK AT
IGNITOR
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
SHUT OFF THE GAS BEFORE
SERVICING THE UNIT.
1. Remove the BOTTOM FRONT COVER.
2. Disconnect the high voltage "ignition cable" from
the spark ignitor.
Fig. 44
DO NOT HOLD THE WIRE WITH
YOUR HANDS FOR THIS TEST. THE MANUAL GAS
VALVE MUST BE CLOSED.
3. Clamp the ignition cable in a manner that will
position the end of the cable 3/16" from the oven
frame (bare metal surface).
NOTE: It is critical that the cable be held 3/16" away
from the surface of the oven frame or sparking may
not occur even though the sparking circuit is
functioning properly.
Fig. 45
4. Plug the oven in and set the temperature control
to the maximum setting.
5. Turn the power switch ON.
6. Sparking should occur after a 4 second delay, for
a duration of 7 seconds then repeat twice after a
15 second purge time. Arching from the ignition
cable to the oven frame should be observed.
DOOR SWITCH ADJUSTMENT
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove the
Top Front Cover.
2. Door operation:
A. Independent doors - The switch actuator
should be operated by the switch lever when
the right door is between 1" and 1 ½" from
being closed.
B. Simultaneous doors - The switch actuator
should be operated by the switch lever when
the right door is ½" from being closed.
3. If adjustment is necessary, bend the switch
actuator to obtain the proper setting.
SG SERIES GAS CONVECTION OVENS - SERVICE PRODCEDURES AND ADJUSTMENTS
F45525 Rev. A (0315) Page 22 of 33