Front panel - 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

View the status, parameters, temperature, units, operating mode icons, and binary input on the LCD. The flame icon indicates heating mode. The snowflake icon indicates cooling mode.

You can set up the parameters and adjust the control with the three-button touchpad on the front panel. Use the Menu button to save values and advance to the next parameter.

The green LED indicator illuminates when the output relay is closed.