Basic and advanced programming menu - PENN Controls - LIT-12012249 - A421ABT - A421AET - Electronic Temperature Control - A421 Duty‐Cycle/Ventilation Models

A421 Series Electronic Temperature Controls with Cycle Timer Product Bulletin

PENN Controls
Product name
A421 Duty‐Cycle/Ventilation Models
Document type
Product Bulletin
Document number
Revision date

The A421 Series controls have a basic and advanced setup and adjustment menu. Use the advanced menu for initial setup or to adjust the advanced A421 control features. Use the basic menu to set up the most common parameters including the On and Off temperature values.

In restricted adjustment mode, users cannot access either the basic or advanced menu, and can only adjust the temperature within the defined adjustment range. See Restricted adjustment mode for more information.