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O
WNER
’
S
M
ANUAL
1190820
REV
3
(11/10) P
AGE
29
OF
48
4. Continue to check 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 firmly, insert screwdriver through center of dial, and push calibration stem inward. DO NOT TURN THIS
STEM.
6. While 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 400°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.
Figure 12
Thermostat Calibration and Bypass Flame Adjustment
Bypass Adjuster
Calibration Stem
D
ial Insert
Bezel
Dial
C
ONVERSION FROM
O
NE
T
YPE OF
G
AS TO
A
NOTHER
Each range is shipped adjusted and equipped for a specific type of gas (either natural gas or propane). To convert a
range from one type of gas to another, do the following:
1. Refer to service procedures to access all burner orifices.
2. Refer to instructions included with conversion kit.
3. Follow all steps as indicated in the conversion kit.
4. Check for leaks and proper manifold pressure (the procedure is on page 26).
5. Re-light all pilots and check for proper operation.
Note: A kit for conversion to a different type of gas may be purchased from Southbend.