S SERIES RESTAURANT RANGES SERVICE
O
WNER
’
S
M
ANUAL
1191904
REV
1
(11/10) P
AGE
27
OF
40
A

DJUSTMENT OF

T

HERMOSTATIC

G

RIDDLE

B

YPASS

F

LAME

L

EVEL

When the griddle reaches the temperature at which the dial is set, the control cuts down the flow of gas to the amount
required to keep the griddle at that temperature. Always, however, the contr ol must bypass enough gas to keep the
entire burner lit. To maintain this minimum flame, the bypass must be set carefu lly and accurately, as follows (see
Figure 12 on page 28):
1. Light the bur ner, then turn dial FULL ON.
2. After 5 m inutes, turn dial clockwise to point slightly beyond first mark on dial.
3. Remove dial and bezel.
4. W ith a screwdriver, turn Bypass Adjustor (counterclockwise to increase the flame, clockwise to decrease it) until
there is a minimum flame over the entire burner.
5. Replace be zel and dial, turning the dial clockwise until it locks in the OFF position.
C

ALIBRATION OF

T

HERMOSTATIC

G

RIDDLE

T

HERMOSTAT

The griddle temperature control is carefully calibrated at the factory—that is, it is so adjusted that dial settings match
actual temperatures. Field recalibration is seldom necessary, and should not be re sorted to unless considerable
experience with cooking results definitely proves that the control is not maint aining the temperatures to which the dial
is set.
Recalibration should not be undertaken, however, until the griddle b ypass flame has been adjusted (see previous
subsection).
To check temperatures when recalibrating, use a test instrument with a DISC t ype thermocouple for surface
temperature checking. Drop a couple of drops of oil on griddle surface plate and place thermocouple disc flat into the
oil.
Proceed as follows (see Figure 12):
1. Remove dial and push out metal insert.
2. Replace dia l, turn to 350°F (175°C) mark, and light burner.
3. After burner has been on about 15 minutes check temperature.
4. Continue to ch eck temperature, at 5-minute intervals, until two successive readings are within 5°F (3°C) of each
other.
The control should be recalibrated if your reading is not within 20°F (11°C) of the dial setting (350°F or 175°C). If
calibration is required, the additional steps to be taken are these:
5. Hold dial firm ly, insert screwdriver through center of dial, and push calibration stem inward. DO NOT TURN THIS
STEM.
6. W hile holding calibration stem in firmly with screwdriver, turn dial until it is set at the actual oven temperature as
shown by your test instrument. Release pressure on calibration stem. Replace dial insert.
7. Set dial at 40 0°F (205°C) mark. Check temperature again, as instructed in steps 3 and 4. If the temperature is
not within 20°F (11°C) of the dial setting (400°F or 205°C), it means that the sensing element is inoperative and
the control should be replaced.