MODEL C24EA - SWITCHES, BUZZER AND SOLENOIDS
6.Perform pressure switch Check.
Check
NOTE: Pressure can be checked with the small air pocket that exists between the delime port cap and water level probe housing in the delime hose. Make certain that no leaks exist in generator tank or pressure gauge fittings.
B.Wait for full steam production to stabilize. This is accomplished by allowing approximately five cycles of fill to occur once steam is being produced by the generator tank. Observe LED on water control board to count cycles.
NOTE: Operating pressures will vary slightly between machine being serviced and gauge used.
1.Turn off machine to drain steam generator tank. Allow steamer to complete drain cycle.
A. Turn off water supply.
2.Remove RIGHT SIDE PANEL as outlined in
COVERS AND PANELS.
3.Remove cap from delime port and install pressure gauge.
4.Close cooking compartment door.
5.Mark one tooth of pressure switch adjustment wheel to aid in identifying position of wheel. Make a second mark on body of pressure switch in alignment with mark on adjustment wheel.
C.Observe pressure gauge once steam begins to be generated. Gauge should level out at approximately 1.25 to 2.0 psi, but will oscillate with respect to fill water entering generator tank.
TYPICAL OPERATING PRESSURE
NOTE: If pressure should rise above 5.0 psi when performing check, release clamp. Pressure switch is out of tolerance and must be adjusted. Refer to Adjustment for procedure.
7.While observing pressure gauge, clamp steam outlet hose closed.
A.Listen for contactors to release indicating that pressure switch contacts have opened. Correct range for pressure switch cut out is between 4.5 to 4.7 psi.
6.Turn steamer on.
A. Set timer for approximately 10 minutes.
B. Release clamp from steam outlet hose. Listen for switch contacts to close (contactors will energize).
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| F25213 (May 2006) |
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