J&R 700E, Руководство по эксплуатации и обслуживанию

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P
ROCEDURE
(a) Proceed as in problem 1, if the combustion damper and exit
flue are not opening.
(b) Verify that the exit flue is clean.
(b) If the problem still exists, make sure that the two large
bypass dampers are sealing against their respective gasketed
seats. A problem with these dampers could affect the pit
temperature, but it would not explain a smoke leakage
problem.
(d) If none of the above problems is evident, then there is
insufficient combustion air for the firebox.
C
AUSES
One of the following:
(a) rear bypass dampers are not opening,
(b) negative air pressure in room (usually caused by exhaust
fans), or
(c) insufficient make-up air.
S
OLUTION
(a) Open the access door to the flues and dampers. Inspect the
bypass dampers for proper operation. They should both open
when the front doors are opened.
3). P
ROBLEM
Excessive smoke emissions from the oven doors when they
are open.
(b) If they do not open when the front doors are opened or when
the "Evac" Switch is energized , inspect (and adjust/repair)
the linkages at the rear of the pit. The "Evac" damper
actuator moves the rear damper linkages to open and close
the dampers. It energizes when the front doors open, or
when the “Evac” switch is energized . If the dampers do
not open after check ing the linkages, then troubleshoot the
acuator using the same procedure described in Problem 1. If
the actuator
has no voltage present, then the problem is in
the circuitry between the actuator and the switches . Check
the wiring, the Rotisserie Switch, the Door Limit Switch and
the Evac Switch.
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