Southbend STRE-3D Heating Cartridge Check at Contactor, Disconnect Power AT Circuit Breaker

STRATOSTEAM COUNTERTOP STEAMER SERVICE

Figure 14

Heating Cartridge Check (at Contactor)

L1	L2	L3	Top of
			Steamer

Ohms

A B C

1.DISCONNECT POWER AT CIRCUIT BREAKER.

2.Turn Control Lever to OFF.

3.Remove right side panel of steamer.

4.DO NOT DISCONNECT HEATING-CARTRIDGE LEAD WIRES FOR THIS TEST.

5.Using a multimeter, check the resistance across contactor terminals as specified in the following table:

Serial-			Model STRE-3D				Model STRE-5D
		Allowable Resistance (Ohms)				Allowable Resistance (Ohms)
Plate
		Three-Phase			Single-Phase	Three-Phase			Single-Phase
Voltage
	A-B and B-C		A-C		A-C	A-B and 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.If the measured resistance at the contactor is not in the specified range, disconnect all the heating cartridges from the contactor. Measure the resistance across the leads each cartridge. Replace any cartridge that shows either an open or short circuit.

OWNER’S MANUAL 1185184 PAGE 25 OF 48