Southbend SEZ-5 Heating Element Resistance Check at Contactor, Troubleshooting, Model SEZ-3

SEZ SERIES COUNTERTOP STEAMERS TROUBLESHOOTING

Figure 8

Heating Element Resistance Check (at Contactor)

C

B

A

Contactor (top view)

1.DISCONNECT POWER AT CIRCUIT BREAKER.

2.Remove control panel.

3.DO NOT REMOVE HEATING ELEMENT LEAD WIRES FOR THIS TEST.

4.Place test leads between terminals A and C on left side of contactor.

5.Check the resistance and compare to the allowable range in the following table:

				Model SEZ-3				Model SEZ-5
	Voltage		Allowable Resistance (Ohms)				Allowable Resistance (Ohms)
			Three-Phase			Single-Phase	Three-Phase			Single-Phase
		A-B or B-C		A-C		A-C	A-B or B-C	A-C		A-C
	208	10	to 12	14	to 16	5 to 6	8 to 10	11	to 13	4 to 5
	220	12	to 13	15	to 18	6 to 7	9 to 11	13	to 15	5 to 6
	240	14	to 16	18	to 21	7 to 9	11 to 13	15	to 17	6 to 7
	480	55	to 64	73	to 85	29 to 34	45 to 52	60	to 70	24 to 28
6. For three-phase units, check resistance between terminals A and B and between terminals B and
C similarly.											TROUBLESHOOTING

OPERATOR’S MANUAL 1181587 PAGE 25