Wolf C48SS Spezifikationen PDF herunterladen (Seite 28)

Do not overtighten the thermocouple nut

or the insulator could be crushed, shorting the

thermocouple. Finger tighten the nut plus 1/4 turn with

a wrench only.

If pilot flame is correct and there are no excessive air

drafts in the room, then problem is either the

thermocouple output voltage or the gas safety valve.

Visually check the thermocouple tip (hot end) and tube

lead for:

• Loose thermocouple connection (electrical) at

the safety valve.

• Corrosion or debris on the threaded connector or

thermocouple tip causing a poor electrical

connection.

• Kinks or pinches that might cause a short

between the tube and the wire inside.

If thermocouple is loose, tighten mounting nut as

described above in NOTICE. If thermocouple

connection shows signs of corrosion or debris that

cannot be cleaned; or damage as described, replace

it and check pilot operation as outlined under

PILOT

FLAME HEIGHT.

TKHUPRFRXSOHTHVW

Check the thermocouple output voltage (DC millivolts)

with a VOM as outlined in the steps below.

• If thermocouple adaptor (see Tools) is available,

check closed circuit voltage as outlined in the test

procedure.

• If thermocouple adaptor is not available, check

open circuit voltage as outlined in the test

procedure.

• If a VOM is not available, replace the

thermocouple with a new one as outlined under

STANDARD OVEN PILOT ASSEMBLY AND

THERMOCOUPLE or CONVECTION OVEN

PILOT ASSEMBLY AND THERMOCOUPLE or

and check operation GRIDDLE PILOT

ASSEMBLY AND THERMOCOUPLE.

1. Disconnect thermocouple from gas safety valve.

2. Select the test to perform.

3. CORVHGCLUFXLW.

A. Install thermocouple adaptor at the

threaded connection on gas safety valve.

B. Install thermocouple to the adaptor. Tighten

mounting nut as described above in

NOTICE.

C. Light the pilot. Allow pilot to heat

thermocouple for one to two minutes.

D. Connect one meter lead to the adaptor test

point and the other meter lead to the tube.

Compare reading to the value listed in the

table below.

4. OSHQCLUFXLW

A. Connect one meter lead to the tip of the

threaded end and the other meter lead to the

tube. Compare reading to the values listed

in the table below.

B. Light the pilot and continue to hold red

button down during this test. Allow pilot to

heat thermocouple for one to two minutes.

C. Compare reading to the value listed in the

table below.

T+ER0OCOU3LE09READING6

CORVHGCLUFXLW OSHQCLUFXLW

Range 8 to 25 MV 25 to 35 MV

5. If readings are less than the minimum stated

above, replace the thermocouple as outlined

under

STANDARD OVEN PILOT ASSEMBLY

AND THERMOCOUPLE or CONVECTION

OVEN PILOT ASSEMBLY AND

THERMOCOUPLE or GRIDDLE PILOT

ASSEMBLY AND THERMOCOUPLE.

6. If pilot is still not functioning properly after

replacing thermocouple, then a problem exists in

the gas safety valve. Install a replacement GAS

SAFETY VALVE (STANDARD AND

CONVECTION OVENS) and check for proper

operation.

ENDURANCE / CHALLENGER MODULAR SERIES GAS RANGES - SERVICE PROCEDURES AND

ADJUSTMENTS

F45471 (0913) Page 28 of 33

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