FIRST GENERATION UNIT SHOWN (Before April
2005)
SECOND GENERATION UNIT SHOWN (After April
2005 thru February 2015)
5.
Remove adjustment screw cap from the gas
valve and turn gas supply to the oven back on.
6.
Plug the unit in and turn the power switch ON.
7.
Set the temperature control to its highest setting
and allow burner to ignite.
NOTE:
The burner must be lit during test and
adjustment.
8.
Turn the set screw to obtain the proper gas
pressure (
clockwise
= pressure increase;
counterclockwise
= pressure decrease).
NOTE:
Accurate gas pressure adjustments can only
be made with the gas on and the burner lit.
GAS
TYPE
PRESSURE READING (IN W.C.)
MANIFOLD
LINE
RECOMMEND MIN MAX
Natural
3.5
7.0
5
14
Propane
10
11.0
11
14
NOTE:
If the incoming line pressure to the valve is
less
than the minimum stated, then the manifold
pressure can not be set correctly.
GAS VALVE PRESSURE CHECK
(units after February 2015)
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1.
Turn gas supply off at manual shutoff valve.
2.
NOTE:
If right side panel is not accessible, this
component can be serviced by removing the
CONTROL PANEL.
3.
Remove the plug from the manifold pressure
port.
Fig. 59
VC4G & VC6G SERIES FULL SIZE CONVECTION OVENS - SERVICE PROCEDURES AND ADJUSTMENTS
Page 29 of 75
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