A421 control UI - PENN Controls - LIT-12012249 - A421ABT - A421AET - Electronic Temperature Control - A421 Duty‐Cycle/Ventilation Models

A421 Series Electronic Temperature Controls with Cycle Timer Product Bulletin

Brand
PENN Controls
Product name
A421 Duty‐Cycle/Ventilation Models
Document type
Product Bulletin
Document number
LIT-12012249
Revision date
2023-01-09
Language
English
Figure 1. A421 Series control front panel with LCD display

Callout Description
1 LCD
2 Binary input indicator
3 Temperature units indicator
4 Operating mode indicator: heat or cool
5 Menu button
6 Down button
7 Relay status LED
8 Up button