Viewing and changing values in the Advanced menu - PENN Controls - A421ABD - A421AED - Electronic Temperature Control - A421 Off‐Cycle Defrost Model

A421 Series Electronic Temperature Controls with Off-Cycle Defrost Installation Guide

Product name
A421 Off‐Cycle Defrost Model
Document type
Installation Guide
Document revision
Revision date

About this task

In this task you access the Advanced menu and view and change the parameter values.


  1. On the Main screen, press and hold Down and Up simultaneously for 5 seconds. Un displays on the LCD, which is the first parameter code screen displayed in the Advanced menu.
  2. To scroll through all of the advanced parameter codes and display the preferred code, press Down or Up.
  3. With the preferred parameter code displayed, press MENU to display the current parameter value for the code.
  4. With the current parameter value displayed, press Down or Up to scroll through all of the parameter code’s usable values and display the preferred value.
  5. With the preferred parameter value displayed, press MENU to save the displayed value and go to the next parameter code.