Extremely colder than preferred temperature range - 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

The Low Temperature On-Time (Ltt) is the minimum time required to ventilate the controlled space. See Figure 1.

The Ltt is applied to the Cycle Period (cP) whenever the sensed temperature falls below the Low Temperature Stop (LtS) even momentarily.