C24EO SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS

HEATING ELEMENT TEST

The heating element assembly contains elements molded into a cast aluminum block. 3 pan units have 6 elements and 5 pan units have 3 elements. See wiring diagrams.

1.Turn cooking mode switch to constant.

2.Measure voltage at heating element terminals on contactors and verify it against data plate voltage.

NOTE: For 480V units, element voltage is 277V.

A.If voltage is incorrect, find the source of the problem.

B.If voltage is correct, check current draw (amps) through the heating element lead wires.

NOTE: This method is preferred over a resistance check when a clamp on type amp meter is available.

1)If current draw is correct then heating element is functioning properly. See table below for proper values.

2)If current draw is not correct, turn cooking mode switch to OFF and disconnect the electrical supply.

a.Replace heating element assembly then proceed to step 3.

C.If unable to check current draw, a resistance check may indicate a malfunctioning element.

1)Turn the cooking mode switch to OFF and disconnect the electrical supply.

2)Remove the lead wires from the heating element and check resistance (ohms).

See table below for proper values.

3. Check for proper operation.

 

 

 

WATTS

AMPS PER

OHMS PER

 

MODEL VOLTS

PER

ELEMENT

 

 

 

ELEMENT

LEAD

ELEMENT

 

 

 

 

 

 

208

2003

9.6

21.6

 

 

 

 

 

 

 

C24EO3

208

664

3.2

65.2

 

 

 

 

 

 

240

2667

11.1

21.6

 

 

 

 

 

 

 

 

 

 

208

4000

19.2

10.8

 

 

 

 

 

 

 

C24EO5

240

4000

16.7

14.4

 

480

4000

14.4

19.2

 

 

 

 

 

 

 

 

1.Values in the table are nominal. Tolerance is +5/-10%.

2.3 pan 208V units use three 2003W elements and three 664W elements.

NOTES: 3. 3 pan 208/240V units share the same element assembly block. 240V units use

only the three 2003W-marked elements (2667W actual).

4.Resistance values (ohms) are @ 77"F room temperature.

F25386 (June 2010)

 

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