Blodgett b12c-b Benutzeranleitung
S
ERVICE
S
AFFIRE
S
ERIES
S
ECTIONAL
R
ANGE
P
AGE
40
OF
72 O
WNER
'
S
M
ANUAL
1184743
Figure 21
Adjustment of Oven Pilot and Burner
The burner orifice is of the fixed type, sized for the type of gas and the operating altitude. To adjust the burner air-gas mixture,
loosen the screw that secures the air shutter on the mixer face and rotate the mixer cap to obtain a clear, stable blue flame
with a distinct inner cone at each port. Excessive primary air causes “blowing” (the flames leaving the ports), while insufficient
primary air causes a soft or yellow tipped flame.
The oven pilot flame is adjusted by using a screwdriver to turn the adjusting screw on the pilot line valve (see drawing below).
The pilot line valve is located behind the kick panel below the oven door. To gain access, lift the kick panel straight up and pull
the top edge out. The pilot flame is properly adjusted when it is just large enough to maintain a glowing red color of the flame
switch capillary bulb. The first indication of over-adjustment is when the flame tip becomes yellow and begins to generate
carbon, which appears as rising black streaks. Continued over-adjustment leads to the unstable lifting and a blowing condition.
loosen the screw that secures the air shutter on the mixer face and rotate the mixer cap to obtain a clear, stable blue flame
with a distinct inner cone at each port. Excessive primary air causes “blowing” (the flames leaving the ports), while insufficient
primary air causes a soft or yellow tipped flame.
The oven pilot flame is adjusted by using a screwdriver to turn the adjusting screw on the pilot line valve (see drawing below).
The pilot line valve is located behind the kick panel below the oven door. To gain access, lift the kick panel straight up and pull
the top edge out. The pilot flame is properly adjusted when it is just large enough to maintain a glowing red color of the flame
switch capillary bulb. The first indication of over-adjustment is when the flame tip becomes yellow and begins to generate
carbon, which appears as rising black streaks. Continued over-adjustment leads to the unstable lifting and a blowing condition.
Adjustment screw for pilot
Air Shutter
Pilot
A
DJUSTMENT OF
M
ANIFOLD
G
AS
P
RESSURE
There is not an internal pressure regulator. The external pressure regulators supplied by Blodgett Range are factory
set at 6" W.C. for natural gas and 10" W.C. for propane gas. To check the manifold pressure, do the following:
set at 6" W.C. for natural gas and 10" W.C. for propane gas. To check the manifold pressure, do the following:
1. Turn OFF all thermostats, burner controls, gas shut-off valves, and the external gas supply connection(s).
2. Remove the valve panel and locate the 1/8" plug in the front manifold furthest from the gas connection location.
2. Remove the valve panel and locate the 1/8" plug in the front manifold furthest from the gas connection location.
Remove the plug and install a fitting appropriate to connect a manometer.
3. Turn ON all gas supply valves and light all pilots.
4. Turn all burners and ovens to full ON position and read manometer.
5. If manometer does not read 6" W.C. for natural gas (or 10" W.C. for propane gas) adjust regulator by removing
4. Turn all burners and ovens to full ON position and read manometer.
5. If manometer does not read 6" W.C. for natural gas (or 10" W.C. for propane gas) adjust regulator by removing
the cap from the top of regulator. Use a screwdriver to rotate the regulator adjustment screw clockwise to
increase pressure, or counterclockwise to decrease pressure, until manometer shows correct reading.
increase pressure, or counterclockwise to decrease pressure, until manometer shows correct reading.
6. Turn OFF all thermostats, burner controls, gas shut-off valves, and the external gas supply connection(s).
7. Remove manometer fitting and replace plug in manifold.
8. Turn ON all gas valves and light all pilots.
9. Replace valve panel.
7. Remove manometer fitting and replace plug in manifold.
8. Turn ON all gas valves and light all pilots.
9. Replace valve panel.