Middleby Marshall PS528 (Double), PS528E Display, SP LOCK Light, OVERTEMP Light, Temperature Key

SECTION 3

OPERATION

Display "HEAT ON" Light

"SP LOCK"

Light

Lights when the set point is locked out from changes. This setting can only be changed by service

personnel.

OVERTEMP

Light

Lights when the oven temperature is greater than 650°F (343°C). Refer to Quick Refer- ence: Troubleshoot-

ing in this section.

Temperature Key

Press this key once to view the Actual Temperature in the Display.

Shows the Set Point	Lights when the
or the Actual Tem-	burner is in
perature in degrees	operation.
Fahrenheit (F) or
Celsius (C).

"SET PT" (set-

point) Light

Lights when the set

point is shown in

the display.

"ACTUAL TEMP"

Light

Lights when the Actual Temperature is shown in the display.

Service Key

Service use

only.

Unlock Key

Press this key togeth- er with the Set Point Key to allow the Set Point to be changed. Changes can only be made for 60 seconds.

Up Arrow and Down

Arrow Keys

Press these keys to adjust the Set Point up or down.

If the Set Point will not

change, refer to Set Point Key and Unlock Key in this section.

21

Set Point Key

Press this key togeth- er with the Unlock Key to allow the Set Point to be changed. Changes can only be made for 60 seconds.