Vulcan C24EA6 Manuel d'utilisateur télécharger pdf (Page 16)

MODEL C24EA - HEATING ELEMENTS AND CONTACTORS

F35453 (July 2008) Page 16 of 68

Contactors

1. Turn off machine to drain steam generator.

Allow steamer to complete drain cycle.

2. Remove FRONT BASE PANEL as outlined

under COVERS AND PANELS.

3. Remove top screw securing cover to high

voltage box.

4. Note electrical connections for the contactor

being replaced then disconnect lead wires from

contactor terminals and coil.

5. Remove screws securing contactor to high

voltage control box then remove contactor.

6. Reassemble parts removed in reverse order.

7. Check steamer for proper operation.

HEATING ELEMENTS

DIAGNOSTIC CHECK

1. Check voltage across heating element lead

wires at the limiting and regulating contactor

terminals and verify against data plate.

A. If voltage is correct, check current draw

(step 2).

B. If voltage is not correct, check the

following:

1) Voltage supply to steamer.

2) Fuses or breaker blown.

3) Power to contactor coils.

4) Contactors not pulling in (mechanical

problem).

2. Check current draw (amps) through heating

element lead wires using an amp clamp meter.

NOTE: Checking current draw is the preferred

method over a resistance check when an amp clamp

meter is available.

A. If current is correct, then heating element is

ok. See table for proper values.

B. If current is not correct, turn power switch

off and disconnect power to machine.

1) Install a replacement heating element.

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