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TESTING AND CALIBRATION

TESTING AND CALIBRATION TO BE PERFORMED BY QUALIFIED TECHNICIANS ONLY.

A.  TESTING GAS PRESSURE

     1.

Ports for measuring outlet gas pressure are located on the end of each valve, below the red terminal
block.  A port is also available on the manifold.  To connect a water column gauge, remove the
grease drawer to gain access to the left side valve, remove the allen head plug sealing the test port,
then connect the hose of the gauge.

     2.

The regulator has an adjustment screw under the cap at the raised center of the regulator body.
Outlet pressure is factory set by the regulator manufacturer for 5 “W.C. (Natural Gas), or 10” W.C.
(Propane Gas).

     3.

If adjustment is required, remove the cover screw on the regulator, adjust the inner screw counter-
clockwise to increase the pressure or clockwise to decrease.

B.

PURGING AIR FROM GAS LINES

Air must be purged from the gas lines for the initial startup.  Turn the knob on the safety valve to
PILOT, press and hold until a flame can be established at  the  pilot burner.  Repeat for each pilot.
Caution must be taken to ensure that no raw gas is present in the surrounding area when attempting
to  place the Griddle into operation.

C.

PILOT FLAME ADJUSTMENT

     1.

The pilot flame may be adjusted at the safety valve
by removing the pilot adjusting screw cover (notice
the fiber washer) and turning the adjusting screw
until the pilot flame covers 

3

/

8

” to 

1

/

2

” tall section of

the thermopile.  This will ensure that the thermopile
will energize the pilot valve and maintain the pilot
flame. Remember  to replace the cover and fiber
washer after adjustments are completed.

     2.

To check the calibration of the thermopile, turn the
main burner thermostat knob to OFF.  Connect a
millivolt meter to the TP and TP TH connections on
the red terminal block on the safety valve. The thermopile should generate 200mV (minimum) within
2 minutes of the pilot flame being lit. 250 mV will provide sufficient power to open both the pilot valve
and main burner valve.  To conserve thermopile life and reduce gas consumption, the reading
should be no more than 500 mV.

D.

MAIN BURNER AIR/FUEL MIXTURE

Each main burner has an adjustment collar at the inlet end
of the burner.  This collar is locked by a 

1

/

4

” hex head screw.

Loosen the screw and rotate the collar to adjust the amount
of combustion air mixed with the incoming gas as it enters
the main burner.  Adjust the fuel/air mixture to produce a
steady, blue flame.  Re-tighten the lock screw after the
proper mixture has been set.

When using LP Gas, remember that LP Gas is heavier than air.  Sniff at floor level for the
presence of LP Gas.  If present, do not attempt to start or light pilots.

8

LOCKING
SCREW

MORE
AIR

LESS

AIR

COLLAR

3/8“ to 1/2”

THERMOCOUPLE
OR
THERMOPILE

Summary of Contents for GAS GRIDDLES

Page 1: ...is considered to be part of the GRIDDLE and is to be given to the OWNER or MANAGER of the restaurant or to the person responsible for TRAINING OPERATORS of the GRIDDLE Additional manuals are available...

Page 2: ...NTY STATEMENT SERVICE POLICY AND PROCEDURE GUIDE ADDITIONAL WARRANTY EXCLUSIONS 1 Resetting of safety thermostats circuit breakers overload protectors and or fuse replacements are not covered by this...

Page 3: ...laim with them This should be done within fifteen 15 days from the date the delivery was made to you Be sure to retain the container for inspection Wells Manufacturing cannot assume liability for dama...

Page 4: ...GREASE TROUGH Extra wide trough with radiused corners makes cleaning easier Trough slopes to large waste hole in center which empties into the removable grease drawer E GREASE DRAWER Large capacity dr...

Page 5: ...ts 2 Griddles are intended for use in commercial establishments where all operators are familiar with the appliance use limitations and associated hazards Operating instructions and warnings must be r...

Page 6: ...properly installed and the griddle levelled If the griddle is to be moved use care to avoid damage to the legs 4 Install grease drawer and splash guard prior to using griddle C GAS HOOK UP NOTE Manuf...

Page 7: ...eling after piping connections are completed in order to avoid problems associated with cooking on a slanted surface 5 CAUTION Leak testing should be performed with a water soap solution Do NOT use fl...

Page 8: ...PIPE PRESSURE TESTING a The main piping system must be capable of supplying the Griddle with sufficient volume flow of fuel to satisfy the maximum operational input requirements b Make sure the supply...

Page 9: ...e PILOT position Depress and hold the safety valve knob and light the pilot The pilot is located behind the front baffle and is visible through the small opening in the baffle 3 After the pilot flame...

Page 10: ...ing the pilot adjusting screw cover notice the fiber washer and turning the adjusting screw until the pilot flame covers 3 8 to 1 2 tall section of the thermopile This will ensure that the thermopile...

Page 11: ...rn the temperature control knob to the desired temperature The indicator light will glow while the griddle is heating When the indicator light first goes out the griddle is ready to use NOTE Separate...

Page 12: ...st food product PRODUCT TEMPERATURE F TIME Sausage link and patty 350 3 minutes Bacon 350 2 3 minutes Canadian Bacon 350 2 3 minutes Ham Steaks 375 3 4 minutes Broiled Ham 375 2 minutes Beef Tenderloi...

Page 13: ...od particles 4 Turn temperature control to OFF Allow the griddle surface to cool then wipe the surface with a clean cloth Dry the griddle surface thoroughly IMPORTANT Season the cooking surface after...

Page 14: ...PM 121 1 12...

Page 15: ...ace with a clean cloth Dry the griddle surface thoroughly 5 At least once each day the grease trough must be thoroughly cleaned Using a scraper remove all grease and food waste from the grease trough...

Page 16: ...PM 121 2 14...

Page 17: ...___________________________________________ FUEL check one NATURAL GAS LP PROPANE 15 PARTS SERVICE IMPORTANT Use only factory authorized service parts and replacement filters For factory authorized se...

Page 18: ...WELLS MANUFACTURING COMPANY 2 ERIK CIRCLE P O Box 280 Verdi NV 89439 Customer Service 775 345 0444 Ext 502 fax 775 345 0569 www wellsbloomfield com...

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