Middleby Marshall Kit 39733 Manuale Utente

1

39732

Instructions

1

34982

Watlow high limit control module

1

30693

Reset switch w/ lighted pushbutton

1

35634

Mounting bracket, reset switch

1

35691

Wire set, reset switch (includes 4

1

33812-1

Thermocouple, type J, 6”/152.4mm

1

39690

Mounting sleeve, thermocouple

•

Drill with 3/16” drill bit

•

Middleby Marshall Thermocouple Signal Source

Generator (P/N 27170-0192)

•

Wire cutters/strippers

2 ft./610mm 27152-0050 Wire, #18 AWG, brown

2 ft./610mm 27152-0053 Wire, #18 AWG, white

2 ft./610mm 27152-0054 Wire, #18 AWG, purple

8

1455A8750

Wire connector, 1/4”/6.4mm

1

3002693

Wire tie, nylon

2

2000076

Screw, 6-32 X 1-5/8”

2

1421B8803 Screw, 6-32 X 1/4”

4

2001327

Nut, 6-32

Check that the kit includes ALL of these parts BEFORE you begin!

This Service Kit is used to replace two different types of

United Electric high limit/cooldown controllers with a

Watlow high limit controller for PS300, 310, 350, and

360 Ovens.  See Figure 1.
•

The early (Type 54) United Electric control was ONLY

equipped with a high limit circuit.  Ovens equipped

with this control did NOT have a cooldown circuit.

This control was used on the following models:
-

PS300/350 Gas (early)

-

PS300/310/350/360 Electric (early - all voltages)

For these ovens, the kit directly replaces the Type

54 high limit control with the Watlow high limit con-

trol.

•

The later (Type 55) United Electric control was

equipped with BOTH high limit and cooldown circuits,

and was used on the following models:
-

PS300/310/350/360 Electric (late), 208/240V and

480V UL versions ONLY

For these ovens, the kit replaces the Type 55 con-

trol with the Watlow high limit control, and uses the

oven’s temperature controller to provide the

cooldown circuit.

Page 1 of 8

P/N 39732

Rev. B • V1 • 5/99

United Electric Type 54

High Limit Control

United Electric Type 55

High Limit/Cooldown

Control

Watlow High

Limit Control

Lighted Reset

Switch