Middleby Marshall PS360, PS570, PS200 Appendix - Instructions for Service Kits 33984 and, PS536

SECTION 3 - SERVICING COMPONENTS

Appendix - Instructions for Service Kits 33984 and 33985 -

Oven Thermocouple Kit, 11/01

PS536

Thermocouples on these ovens are located inside the ma- chinery compartment. They are secured in place by a sheet metal screw that traps the thermocouple flange against the wall of the compartment. See Figure 7.

NOTE FOR HIGH LIMIT THERMOCOUPLES:

PS536 ovens have two thermocouples, one mounted above the other. The upper thermocouple senses the oven temperature and is connected to the temperature controller. The lower thermocouple is connected to the high limit control module. Either thermocouple can be replaced using this Kit.

1.Loosen the sheet metal screw that holds the thermo- couple flange to the wall of the machinery compart- ment.

2.Pull the thermocouple out of the machinery compart- ment. Disconnect the thermocouple leads.

3.Install the new thermocouple so that its flange fits firmly against the wall of the machinery compartment. Tighten the sheet metal screw so that its head holds the ther- mocouple flange securely in place.

NOTE: PS536 ovens do not use a thermocouple mount- ing tube, so it is CRITICAL that the thermocouple flange is securely fastened to the wall of the machinery com- partment.

4.Route the thermocouple leads away from the ignition cable. Connect the leads as shown in Figure 8.

Figure 7

Thermocouple Installation - PS536

		Sheet
		metal
		screw
Thermocouple		Thermocouple
		flange
	Plenum	Machinery
		compartment
	wall
		wall
Temperature-
sensing
thermocouple

High limit

thermocouple

Screw head holds thermocouple

flange in place

Figure 8

Thermocouple Wiring - PS536

Digital Temperature Controller

White

Red

Shielded

ground lead

High Limit Control Module

Red White

Shielded

ground lead

5

60