Starting or stopping a Defrost Cycle using the SdF parameter - PENN Controls - A421ABD - A421AED - Electronic Temperature Control - A421 Off‐Cycle Defrost Model

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

Brand
PENN Controls
Product name
A421 Off‐Cycle Defrost Model
Document type
Installation Guide
Part number
24-7664-3035
Document revision
E
Revision date
2022-08-25
Language
English

Procedure

To start or stop a Defrost Cycle using the SdF parameter, choose from the following options.
  • Select a Start/Stop Defrost Cycle (SdF) parameter value of 1.
  • Or, change the SdF value to 0 (zero) during a dFt to stop a defrost cycle and return the control to normal On/Off operation. See Figure 1.