13
MAINTENANCE & CLEANING CONT’D
NOTICE:
Service on this, or any other, LANG appliance must be
performed by qualified personnel only. Consult your
authorized service station directory or call the factory
at 1-800-224-LANG (5264), or WWW.LANGWORLD.COM
For the service station nearest you.
8.3 Burner Air Shutter Adjustment
•
The air shutters are pre-set at the factory. However, minor adjustments may be
required in the field to accommodate differences in gas and elevation.
•
To adjust the air shutters, loosen the set screw holding the air damper to the
burner near the gas inlet.
•
Adjust the air mixture until the burner flame just flickers on the burner. “Lift-
off” or yellow flame indicates improper shutter adjustment.
•
Periodically inspect and clean the air shutters to insure complete combustion.
8.4 Testing Safeties and Controls
•
The pilot combination valve can only be checked with a multi-meter that
measures milivolts.
•
Connect the mulit-meter to the top terminal of the combination valve marked
“TH/TP” and the body of the combination valve.
•
The voltage should read as follows: 400 to 500 MV with the burner off, 150
MV with the burner on.
•
If no voltage is present at the combination valve, install a thermocouple tester
between the thermocouple and the combination valve, then retake the voltage
measurements.
•
If no voltage is present, replace the thermocouple.
•
If voltage is present, replace the combination valve.
8.5 NCC Console
Repairs or maintenance needed on the NCC Console is the responsibility of NCC.
Contact NCC for warranty work on the griddle control console.
CAUTION:
USE OF ANY REPLACEMENT PARTS OTHER THAN
THOSE SUPPLIED BY LANG OR THEIR AUTHORIZED
DISTRIBUTORS CAN CAUSE BODILY INJURY TO THE
OPERATOR AND DAMAGE TO THE EQUIPMENT AND
WILL VOID ALL WARRANTIES.
