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 TM 55-1925-273-10-1
0091 00
NOTE
PW-29 is located in the ventilator control cabinet.
5.
At the galley ventilator and control cabinet, perform the following:
a.
OPEN valve PW-29 (figure 5, item 1).
b.
Observe the pressure-temperature gauge (figure 5, item 2). Pressure should be between 40 and 80 PSI (2.75 and
5.52 bar). Temperature should be between 140 F and 180 F (60 C and 82 C). If the readings are out of range,
notify unit maintenance.
6.
Program the automatic exhaust fan and wash cycle functions using the steps below:
NOTE
Panel must be opened to operate keypad pushbuttons.
a.
On the control center (figure 5, item 3), press the ENTER pushbutton (figure 5, item 4) and hold for 5 seconds until
the "1" appears.
! CAUTION
The wash cycle should be programmed to come on during a time when the cooking equipment is
either off or turned to low to avoid high heat buildup that could set off the surface fire protection
system.
b.
Press the START FAN pushbutton (figure 5, item 5) to program the exhaust fan or press the START WASH pushbutton
(figure 5, item 6) to program the wash cycle.
c.
Press the HOUR pushbutton (figure 5, item 7) and hold down until the desired hour appears.
d.
Press the MINUTE pushbutton (figure 5, item 8) and hold down until the desired minute appears.
e.
Press the ENTER pushbutton (figure 5, item 4).
f.
Press the CLOCK pushbutton (figure 5, item 9).
EXHAUST FAN OPERATION
1.
Ensure that the damper control switch (figure 5, item 10) is in the OPEN position (pushed in).
2.
On the control center (figure 5, item 3), press the START FAN pushbutton (figure 5, item 5). Observe that the FAN ON
indicator (figure 5, item 11) lights and the exhaust fan operates.
WASH MODE OPERATION
1.
With the exhaust fan operating, press the START WASH pushbutton (figure 5, item 6).
NOTE
The exhaust fan will stop. The FAN ON indicator will go out. The WASH CYCLE indicator will
light and water will begin spraying inside the hood.
2.
At the control cabinet, check the pressure-temperature gauge (figure 5, item 5). Pressure should be between 40 and 80
PSI (2.75 and 5.52 bar). Temperature should be between 140 F and 180 F (60 C and 82 C). If the readings are out
of range, notify unit maintenance. The liquid detergent pump (figure 5, item 12) should be operating.
0091 00-3
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