AccuTemp EDGE ALTEH-5 Manuale d'uso e istruzioni per l'installazione - Pagina 7

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The heater(s), contactor(s), and all controls are located under the control console located on the right-hand side of

the kettle. These components are accessible with the control console panel removed.

No special tools are required for removal or replacement of malfunctioning components.

Most electrical component failure can be easily diagnosed by following a logical process of elimination.

The thermostat, and primary coil on the transformer (380, 415,440,480v only) can be tested for continuity. An open

circuit indicates that the component has failed.

It is necessary to disconnect the heater wires from the contactor(s) before testing the heating element(s) for

continuity.

The coils on the low water control relay, contactor(s), secondary coil of the transformer (380 & 480v only), and the

thermostat indicator light can also be tested for continuity; however, it will be necessary to disconnect these

components from the circuit before testing.

Also check the transformer (380, 415,440,480v only) for coil to coil shorting if any control circuit components have

failed. Reference appropriate schematic diagram for model to be serviced.

Heating element failure may be attributed to chattering of the contactor(s) or the low water control relay, cause by

burned or pitted points. Be sure to check for burned or pitted points in the contactor(s), if element(s) need

replacing.

Re-Calibrating Thermostats

If the thermostat is defective or not working properly, it must be replaced (without breaking the seal)

and returned to Accutemp. The warranty is voided if the seal is broken or an attempt is made to

recalibrate the thermostat. See below for replacement instructions of the thermostat.

Primary Thermostat Replacment

Disconnect power and remove service panel.

Disconnect and mark wire(s) connected to the normally closed position with the enclosed tag marked normally

closed.

Disconnect and mark wire(s) connected to the common position with the enclosed tags marked common.

Drain water in jacket below the thermobulb location.

Remove the 3/8" hex pipe plug, which holds the thermobulb in place in the weld coupling. Pull thermobulb and

capillary tube out of the kettle jacket.

Remove the two mounting screws on the existing thermostat from the front panel.

Use the existing hole locations for mounting the thermostat. The two outer holes on the new thermostat bracket

are for mounting the thermostat and the two inner holes are for mounting the bezel. With a marker, mark the

hole locations for drilling the bezel holes.

Drill holes through the front panel with a #32 drill bit

Locate the new replacement thermostat on the inside of the control box where the existing thermostat was

mounted. The thermostat should be mounted with the flat side of the dial stem facing the right side of the unit

and the common pole ("P" terminal) will be on the left side. You will use the #6-32x1/4" round head slotted

screws provided to mount the thermostat in the two outer holes.

10 After this has been completed, Secure the bezel in place with the #6 Type "F" x 5/16" pan head phillips thread

cutter screws provided in the two inner holes which should have been drilled out in step 7. Note: The triangular

indicator marking on the bezel should be in the 3 o'clock position.

11 Reconnect the wires marked normally closed to the normally closed position on the new replacement

thermostat with the piggyback push-on connector (if more than one connection is needed) or a single push-on

connector (if only one connection is needed) as provided in the installation package.

12 Carefully uncoil the capillary tube. Re-insert thermobulb and 2 inches of the capillary tube through the weld

coupling from which the old tube and bulb were removed. Caution: Do not make any threaded connections