Question about Maytag Kitchen Ranges
Proper air velocity over the burner is critical on a direct fired gas unit. If the air velocity is not within
specifications, the unit will not operate efficiently, can produce excess carbon monoxide (CO) or other gases, and may have sporadic shutdowns. Proper air velocity is determined by measuring the static pressure drop across the burner.
To measure the static pressure drop, the fan should be running and be discharging 70° air. Using an incline manometer or equivalent, insert one sensor into the entering air access opening (plugged test port) and the other on the downstream side, through the view port (see page 12 for locations). The proper static pressure reading should be from .625 in. to .675 in.
If this reading is higher or lower and the air quantity (cfm) delivered to the building is acceptable, then the burner baffles will need to be adjusted (see diagram).
Open the burner access door. Using a wrench loosen the 4 screws to adjust the baffles. To increase the static pressure loss, decrease the opening size and to decrease the loss, increase the opening size. The top and bottom baffles should be of equal distance from the burner. Tighten the baffle fasteners, replace the door, turn unit on, and recheck the loss. This process may need to be repeated
until the proper pressure reading is attained.
This adjustment will change the air quantity delivered by the unit and therefore should be rechecked.
Posted on Sep 05, 2008
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