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PS555 Gas - thermocouples with screw ter-
minal connections (no terminal blocks)
Thermocouples on these ovens are located on the rear wall.
They are secured in place by two screws that are inserted
through the holes in the thermocouple flange. These ovens
are equipped with a three-lead, flanged thermocouple iden-
tical to the one in this Kit.
NOTE FOR HIGH LIMIT THERMOCOUPLES:
These ovens have a high limit thermocouple installed in
the last mounting hole at the exit end of the oven.
The thermocouple supplied in this Kit can be used to
replace ANY of the temperature-sensing or high limit ther-
mocouples on the oven.
1. Remove the rear shrouds and blower motor covers. This
allows access to the thermocouples (on the rear wall)
and screw terminals (inside the blower motor compart-
ments).
2. Remove the screws that hold the thermocouple to the
wall. Slide the thermocouple out of its mounting hole.
3. Disconnect the thermocouple leads. Refer to Figure 9.
High limit thermocouples are wired directly to the
high limit control module. The thermocouples
ground wire is connected to the mounting screw
for the high limit control module.
The red and white leads from ALL temperature-sens-
ing thermocouples are joined at capped screw ter-
minals, located inside the left blower motor com-
partment. Leads from these screw terminals con-
nect to the temperature controller at the front of the
oven.
The ground leads for temperature-sensing thermo-
couples are connected to the chassis ground lug
inside the left blower motor compartment.
4. Remove and discard the thermocouple.
5. Install the new thermocouple into the original mounting
hole. Fasten it in place with the supplied #6 x 3/8
screws.
6. Wire the thermocouple as shown in Figure 9.
6. Use the kit-supplied nylon clamp and #10-16 x 3/4
screw to secure the thermocouple leads so that they
will clear the shrouds, blower belts, and pulleys.
7. Close the machinery compartment door. Replace all
shrouds onto the oven.
Figure 9
Thermocouple Wiring - PS555
Temperature-sensing
thermocouple ground
leads attach to
ground lug
Temperature-sensing
thermocouple leads
(red or white)
+
1 lead to temperature
controller
Screw terminals:
1 for red leads
1 for white leads
2 total
Cap
Shielded
ground lead
Red White
High limit
thermocouple leads
attach directly to high
limit control module
SECTION 3 - SERVICING COMPONENTS
Appendix - Instructions for Service Kits 33984 and 33985 -
Oven Thermocouple Kit, 11/01