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Avantco 178APT27HC - User Manual

Avantco 178APT27HC
25 pages
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This manual is for a certified service technician and should not be used by those who are not properly trained.
This manual cannot cover all possible conditions that may occur and is not intended to be all encompassing.
You should read this manual in its entirety and the specific repair you wish to do prior to starting the repair.
This will allow you to determine if you have the correct tools, instruments, and skills to perform the procedure.
REVISED: 05/2022
NOTICE
Service Manual
Refrigerated Sandwich Prep Tables
#178APT27HC 27" 1 Door Refrigerated Sandwich Prep Table
#178APT27MHC 27" 1 Door Mega Top Refrigerated Sandwich Prep Table
#178APT48HC 48" 2 Door Refrigerated Sandwich Prep Table
#178APT48MHC 48" 2 Door Mega Top Refrigerated Sandwich Prep Table
#178APT60HC 60" 2 Door Refrigerated Sandwich Prep Table
#178APT60MHC 60" 2 Door Mega Top Refrigerated Sandwich Prep Table
#178APT71HC 71" 3 Door Refrigerated Sandwich Prep Table
#178APT71MHC 71" 3 Door Mega Top Refrigerated Sandwich Prep Table
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Summary

Troubleshooting Guide

Temperature Controller Settings

Accessing and Saving Settings

Steps to navigate and save controller parameters for temperature management.

Password Setting (P5)

Explanation of the password setting parameter for the controller, range 0-200.

Temperature Unit Selection (;5)

How to select between Celsius and Fahrenheit for temperature display.

Cabinet Offset (;c1)

Adjusting temperature offset for the cabinet.

Evaporator Offset (;c2)

Adjusting temperature offset for the evaporator.

Differential Setting (rd)

Setting the temperature differential for the controller, range 0-19°F.

Minimum Temperature Limit (r1)

Setting the lowest allowed temperature for the unit, range -50°F to r2.

Maximum Temperature Limit (r2)

Setting the highest allowed temperature for the unit, range r1 to 200°F.

Compressor and Fan Start Delay (c0)

Setting the delay before compressor and fan start, range 0-100 minutes.

Time Between Defrosts (dl)

Configuring the interval between defrost cycles, range 0-199 hours.

Defrost End Setting (dt)

Setting the temperature point to end a defrost cycle, range -50°F to 130°F.

Maximum Defrost Time (dP)

Setting the maximum duration for a defrost cycle, range 1-199 minutes.

Part Testing Procedures

Compressor and Capacitor Testing

Procedures for testing compressor and capacitor components for proper function.

Controller Testing

Steps to test the unit's electronic controller for voltage and connection integrity.

Evaporator Fan Motor Testing

How to test the evaporator fan motor for proper operation and current draw.

Condenser Fan Motor Testing

Procedure for testing the condenser fan motor for voltage and current draw.

Door Seal Heater Testing

Methods for testing the door seal heater element for resistance and voltage.

Part Replacement Instructions

Controller Replacement

Step-by-step guide for removing and replacing the temperature controller.

Compressor Replacement

Instructions for safely removing and replacing the unit's compressor.

Capacitor Replacement

Procedure for safely replacing the compressor's start/run capacitor.

Filter Drier Replacement

Steps to safely replace the refrigerant filter drier.

Condenser Fan Cover Replacement

Guide for removing and replacing the condenser fan cover.

Condenser Fan Blade Replacement

Instructions on how to replace the condenser fan blade.

Condenser Fan Motor Replacement

Procedure for replacing the condenser fan motor.

Condenser Coil Replacement

Steps to safely remove and replace the condenser coil assembly.

Evaporator Fan Motor Replacement

Guide for safely removing and replacing the evaporator fan motor.

Evaporator Coil Replacement

Instructions for safely removing and replacing the evaporator coil.

Wire Diagram (178 APT27 HC)

Wire Diagram (178 APT48 HC)

Wire Diagram (178 APT60 HC)

Wire Diagram (178 APT71 HC)

Parts Diagram List (178 APT27 HC)

Parts Diagram List (178 APT48 HC)

Parts Diagram List (178 APT60 HC)

Parts Diagram List (178 APT71 HC)

Summary

Troubleshooting Guide

Temperature Controller Settings

Accessing and Saving Settings

Steps to navigate and save controller parameters for temperature management.

Password Setting (P5)

Explanation of the password setting parameter for the controller, range 0-200.

Temperature Unit Selection (;5)

How to select between Celsius and Fahrenheit for temperature display.

Cabinet Offset (;c1)

Adjusting temperature offset for the cabinet.

Evaporator Offset (;c2)

Adjusting temperature offset for the evaporator.

Differential Setting (rd)

Setting the temperature differential for the controller, range 0-19°F.

Minimum Temperature Limit (r1)

Setting the lowest allowed temperature for the unit, range -50°F to r2.

Maximum Temperature Limit (r2)

Setting the highest allowed temperature for the unit, range r1 to 200°F.

Compressor and Fan Start Delay (c0)

Setting the delay before compressor and fan start, range 0-100 minutes.

Time Between Defrosts (dl)

Configuring the interval between defrost cycles, range 0-199 hours.

Defrost End Setting (dt)

Setting the temperature point to end a defrost cycle, range -50°F to 130°F.

Maximum Defrost Time (dP)

Setting the maximum duration for a defrost cycle, range 1-199 minutes.

Part Testing Procedures

Compressor and Capacitor Testing

Procedures for testing compressor and capacitor components for proper function.

Controller Testing

Steps to test the unit's electronic controller for voltage and connection integrity.

Evaporator Fan Motor Testing

How to test the evaporator fan motor for proper operation and current draw.

Condenser Fan Motor Testing

Procedure for testing the condenser fan motor for voltage and current draw.

Door Seal Heater Testing

Methods for testing the door seal heater element for resistance and voltage.

Part Replacement Instructions

Controller Replacement

Step-by-step guide for removing and replacing the temperature controller.

Compressor Replacement

Instructions for safely removing and replacing the unit's compressor.

Capacitor Replacement

Procedure for safely replacing the compressor's start/run capacitor.

Filter Drier Replacement

Steps to safely replace the refrigerant filter drier.

Condenser Fan Cover Replacement

Guide for removing and replacing the condenser fan cover.

Condenser Fan Blade Replacement

Instructions on how to replace the condenser fan blade.

Condenser Fan Motor Replacement

Procedure for replacing the condenser fan motor.

Condenser Coil Replacement

Steps to safely remove and replace the condenser coil assembly.

Evaporator Fan Motor Replacement

Guide for safely removing and replacing the evaporator fan motor.

Evaporator Coil Replacement

Instructions for safely removing and replacing the evaporator coil.

Wire Diagram (178 APT27 HC)

Wire Diagram (178 APT48 HC)

Wire Diagram (178 APT60 HC)

Wire Diagram (178 APT71 HC)

Parts Diagram List (178 APT27 HC)

Parts Diagram List (178 APT48 HC)

Parts Diagram List (178 APT60 HC)

Parts Diagram List (178 APT71 HC)

Avantco 178APT27HC Specifications

General IconGeneral
BrandAvantco
Model178APT27HC
CategoryRefrigerator
LanguageEnglish

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