LBC LRO-1G5 Installation, Service, And Parts Manual page 28

Startup
1 Check voltage supplied to oven. Confirm it matches data plate.
Turn off manual gas valve. Install manometer in supply-side port of gas valve.
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3 Check amp rating of breakers supplying power to oven and confirm they are within ratings on data plate.
Power oven up. Confirm function of roof-top ventilator.
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Close loading door. Confirm that door switch has ample over-travel, open and closed and is driven past the trip point.
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6 Check direction of rotation of blower motor. The motor must rotate counterclockwise when viewed from above (clockwise
from shaft end). NOTE: air will flow out of pressure panels even if blower operates backward, but oven will not bake
correctly.
Confirm that chamber vent lid seals tightly to vent intake duct.
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8 Check pressure panel gap settings and confirm they match settings the manual.
Raise thermostat setting so oven will call for heat. Observe that heat sequence lights all turn on.
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Open manual gas valve and cycle loading door. Observe that burner lights.
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11 Check supply pressure to gas valve. Confirm that supply pressure is always between 5 and 14 inwc (both NG and LPG).
Cycle burner off and wait 5 minutes. Observe the burner lighting. When gas valve opens ("clicks"), flame must light and
reach sensor within 1 second.
Remove one filter from hood and confirm burner will still light. Replace filter.
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Open loading door. Place an oven rack inside oven. Confirm that rack will have clearance to carrier when rack is heated
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and when casters wear.
Close loading door. Confirm that top/side door seals are compressed and that door-floor seal is properly adjusted. Confirm
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that door-to-header and door-to-jamb gaps are even and approx 3/8".
Heat oven to 350 deg F. Confirm that there are no hot spots around oven.
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Perform test bake with aload of product. If no product is available, load oven with a full rack of sheet pans with 6 slices
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ofwhite bread on each pan. Bake at 400 deg for 20 minutes. Check evenness of bake.
Confirm that rack is lifted clear of floor. Test all oven racks available.
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Remove rack. Cycle loading door and check stop position of carrier. NOTE: Carrier stop position must only be adjusted with
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oven at temperature and with no rack in oven.
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Set oven to 400 deg F and allow it to preheat for 30 min. Set time to 20 min, steam to 10 sec and vent to Auto or 7 minutes.
Place a cold rack in oven and press start. Observe that there is ample steam on rack and that oven regains set point in 6 min
or less. Observe that the vent removes steam from oven at end of bake.
20 Measure Carbon Monoxide (CO) produced by oven. NOTE: CO measurement must not exceed 400ppm air-free. Less than
50ppm is normal. Confirm that loading door operates freely and will not close on operator.
Confirm that loading door operates freely and will not close on operator.
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Inspect fit and finish of oven. Look for missing screws, protective plastic still on parts, scratches or dents, missing parts or
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misalignment of panels.
Confirm that interior lights operate when door is open and oven is on.
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Check for leaks in water, gas and drain lines.
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Confirm that the operators manual is in the pocket inside the control compartment.
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