PENN TC3B21 Defrost Controller User Guide

: June 10, 2024
: PENN

Table of Contents

PENN TC3B21 Defrost Controller
Product Information
Product Usage Instructions
CONFIGURATION PARAMETERS
PRODUCT WARRANTY
SOFTWARE TERMS
SINGLE POINT OF CONTACT
CONTACT INFORMATION
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

PENN TC3B21 Defrost Controller

Product Information

The TC3B21 is a basic controller for refrigerated cabinets that features energy-saving strategies. This reference guide provides configuration parameters for the controller.

Configuration Parameters
The following parameters can be configured:

Parameter	Description
PAR. SP	Display refresh time CONTROL Setpoint differential Minimum

setpoint Maximum setpoint Setpoint offset in energy saving Cooling
or heating operation
PAR. CA1 CA2 P0 P1 P2 P4 P5 P8| Various configuration parameters
r0 r1 r2 r4 r5 r12| Various configuration parameters
PAR. DEF. COMPRESSOR| Compressor off minimum time Compressor on minimum time
Compressor off time during cabinet probe alarm Compressor on time
during cabinet probe alarm Threshold for high condenser temperature
warning Threshold for high condenser temperature alarm High
condenser temperature alarm delay DEFROST (if r5 = 0) Automatic
defrost interval Threshold for defrost end Defrost duration Enable
defrost at power-on Defrost delay after power-on Value displayed
during defrost Dripping time Defrost interval counting mode
Evaporation threshold for automatic defrost interval counting
Enable defrost timeout alarm Adaptive defrost interval Threshold
for adaptive defrost, relative to optimal evaporation temperature
Compressor on consecutive time for defrost Evaporation threshold
for adaptive defrost interval counting, relative to optimal
evaporation temperature
PAR. A1 A4 A6 A7 A11| Various configuration parameters
PAR. HE2 HE3| Digital inputs – Door switch or multi-purpose input function,
Open door alarm delay, Regulation inhibition maximum time with door
open

Product Usage Instructions

Refer to the product manual and follow the configuration parameters to configure the TC3B21 defrost controller for your refrigerated cabinet. The controller features energy-saving strategies and can be configured for cooling or heating operation. The controller also features automatic defrost, defrost delay after power-on, and defrost duration.

The digital inputs can be used for door switches or multi-purpose input functions and feature an open door alarm delay and regulation inhibition maximum time with door open.

CONFIGURATION PARAMETERS

| PAR.| DEF.| SETPOINT| MIN. – MAX.
---|---|---|---|---
SP| 0.0| Setpoint| r1 to r2

| PAR.| DEF.| ANALOG INPUTS| MIN. – MAX.
CA1| 0.0| Cabinet probe offset| -25°C/°F to 25°C/°F
CA2| 0.0| Auxiliary probe offset| -25°C/°F to 25°C/°F
P0| 1| Probe type| 0 = n/a              1 = NTC
P1| 1| Enable °C decimal point| 0 = No               1 = Yes
P2| 0| Temperature unit of measurement| 0 = °C               1 = °F
P4| 0| Configurable input function| 0 = Door switch/multi-pur- pose input

1 = Evaporator probe

2 = Condenser probe

P5| 0| Value displayed| 0 = Cabinet temperature

1 = Setpoint

2 = Auxiliary temperature

1 = Heating

r12| 1| Position of the r0 differential| 0 = Asymmetric

1 = Symmetric

Differential = 2°C/4°F

C7| 90.0| Threshold for high condenser

temperature alarm

0 = Only manual

If d8 = 3, maximum interval

d2| 2.0| Threshold for defrost end| -99°C/°F to 99°C/°F
d3| 30| Defrost duration| 0 min to 99 min

If P4 = 1, maximum duration

1 = Display locked

2 = dEF label

d7| 2| Dripping time| 0 min to 15 min
d8| 0| Defrost interval counting mode| 0 = Device on hours

1 = Compressor on hours

2 = Hours evaporator temperature < d9

3 = Adaptive

If compressor on and evaporator temperature < d22

0 = Only manual

d19| 3.0| Threshold for adaptive defrost,

relative to optimal evaporation temperature

| 0°C/°F to 40°C/°F

Optimal evaporation temperature – d19

d20| 180| Compressor on consecutive time for defrost| 0 min to 999 min

0 = Disabled

d22| 2.0| Evaporation threshold for adaptive

defrost interval counting, relative to optimal evaporation temperature

| 0°C/°F to 19°C/°F

Optimal evaporation temperature + d22

| PAR.| DEF.| ALARMS| MIN. – MAX.
A1| 10.0| Threshold for low temperature alarm (relative to setpoint)| 0°C/°F to 99°C/°F SP – A1

0 = Disabled

A4| 10.0| Threshold for high temperature alarm (relative to setpoint)| 0°C/°F to 99°C/°F SP + A4

0 = Disabled

A6| 12| High temperature alarm delay after power-on| 0 min to 99 min x 10
A7| 15| High and low temperature alarms delay| 0 min to 240 min
A11| 2.0| High and low temperature alarms reset differential| 1°C/°F to 15°C/°F
| PAR.| DEF.| DIGITAL INPUTS| MIN. – MAX.
---|---|---|---|---
i0| 1| Door switch or multi-purpose input function| 0 = None

1 = Compressor off

2 = Energy saving

3 = iA alarm

4 = iA alarm + compressor off

i1| 0| Door switch or multi-purpose input activation| 0 = With contact closed

1 = With contact open

i2| 30| Open door alarm delay| -1 min to 120 min

If i0 = 3, multi-purpose input alarm delay

If i0 = 4, compressor on delay after alarm reset

-1 = Disabled

i3| 15| Regulation inhibition maximum time with door open| -1 min to 120 min

-1 = Until the closing

i10| 0| Door closed consecutive time for energy saving| 0 min to 999 min

After regulation temperature

< SP

0 = Disabled

i13| 180| Number of door openings for defrost| 0 to 240

0 = Disabled

i14| 32| Door open consecutive time for defrost| 0 min to 240 min

0 = Disabled

| PAR.| DEF.| ENERGY SAVING (if r5 = 0)| MIN. – MAX.
HE2| 0| Energy saving maximum duration| 0 min to 999 min

0 = Until the door opening

HE3| 2| No operation on the keyboard consecutive time for low consumption| 0 min to 240 min

0 = Disabled

| PAR.| DEF.| SAFETIES| MIN. – MAX.
POF| 1| Enable ON/STAND-BY key| 0 = No 1 = Yes
PAS| – 19| Password| -99 to 999

0 = Disabled

PRODUCT WARRANTY

This product is covered by a limited warranty, details of which can be found at www.johnsoncontrols.com/buildingswarranty.

SOFTWARE TERMS

Use of the software that is in (or constitutes) this product, or access to the cloud, or hosted services applicable to this product, if any, is subject to applicable end-user license, opensource software information, and other terms set forth at www.johnsoncontrols.com/techterms. Your use of this product constitutes an agreement to such terms.

SINGLE POINT OF CONTACT

APAC	Europe	NA/SA

JOHNSON CONTROLS C/O CONTROLS PRODUCT MANAGEMENT

NO. 32 CHANGJIJANG RD NEW DISTRICT

WUXI JIANGSU PROVINCE 214028

CHINA

|

JOHNSON CONTROLS WESTENDHOF 3

45143 ESSEN GERMANY

|

JOHNSON CONTROLS 507 E MICHIGAN ST MILWAUKEE WI 53202 USA

CONTACT INFORMATION

Contact your local branch office:
www.johnsoncontrols.com/locations.

Contact Johnson Controls:
www.johnsoncontrols.com/contact-us.

This document and the solutions contained therein are the intellectual property of Penn and thus protected by the Italian Intellectual Property Rights Code (CPI). Penn imposes an absolute ban on the full or partial reproduction and disclosure of the content other than with the express approval of Penn. The customer (manufacturer, installer or end-user) assumes all responsibility for the configuration of the device. Penn accepts no liability for any possible errors in this document and reserves the right to make any changes, at any time without prejudice to the essential functional and safety features of the equipment.

Johnson Controls
507 E. Michigan St. Milwaukee, WI 53202-5211 USA
www.penncontrols.com.