A
DJUSTMENTS
M
EDIUM
D
UTY
C
OUNTERLINE
P
AGE
16
O
PERATOR
’
S
M
ANUAL
1178822
REV
3
ADJ
UST
M
E
N
TS
A
DJUSTMENTS
!
WARNING
ADJUSTMENTS AND SERVICE WORK MAY BE PERFORMED ONLY BY A QUALIFIED
TECHNICIAN WHO IS EXPERIENCED IN, AND KNOWLEDGEABLE WITH, THE OPERATION OF
COMMERCIAL COOKING EQUIPMENT. HOWEVER, TO ASSURE YOUR CONFIDENCE,
CONTACT YOUR AUTHORIZED SERVICE AGENCY FOR RELIABLE SERVICE, DEPENDABLE
ADVICE OR OTHER ASSISTANCE, AND FOR GENUINE FACTORY PARTS.
In case of problems in operation at initial installation, check type of gas and manifold pressure and compare
with information listed on the serial plate.
GAS PRESSURE REGULATOR
The convertible pressure regulator is factory set at 4" W.C. for natural gas. (To convert for use with propane
gas (10" W.C.), follow the procedure on page 9.) To check the manifold pressure:
1.
Turn all burner valves to “OFF” position.
2.
Turn main gas valve to entire unit off.
3.
Remove front panel and locate 1/8" plug in manifold.
4.
Remove plug and install a fitting appropriate to connect a manometer.
5.
Turn on main gas to unit and light pilots.
6.
Turn all burners and ovens to full “ON” position and read manometer.
7.
If manometer does not read 4" W.C. for natural gas (or 10" W.C. for propane gas), check the incoming
gas line for proper pressure.
8.
Remove manometer fitting and replace plug in manifold.
9.
Repeat step 5.
10. Replace front panel.
TOP PILOTS: NON-AERATED (YELLOW-TIPPED FLAME) TYPE
Outage is often caused by an unstable flame due to over-adjustment to the point where the flame is leaving
its port, or “blowing off.”
Often, in an effort to improve ignition, the pilots are increased too much and result in this unstable condition.
These pilots are adjusted by inserting the blade of a screwdriver into the slot on the small valve, located on
the manifold. The maximum flame size is approximately 3/4" with a slight yellow tip. The first indication of
over-adjustment is evident when the yellow tip begins to stream into black streaks and generate carbon.
Continued over-adjustment leads to the unstable lifting and blowing condition.
ALL TOP BURNERS
All burners have a primary air adjustment by means of an air shutter on the mixer face.
Loosen screw and rotate mixer cap until a clear, stable blue flame is obtained. The flame should not be
yellow tipped nor should it blow off the burner ports.
