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Champion CRN50 - User Manual

Champion CRN50
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SERVICE DEPARTMENT: (724) 746-1100
CRN SERIES
REFRIGERATED
COMPRESSED
AIR DRYERS
INSTRUCTION MANUAL
®
7610.721.73 1/04
CA18-2-645, 1st Ed.
7610.478.39/040103
INTERNAL USE ONLY
CONTENTS
GENERAL SAFETY INFORMATION ............................2
RECEIVING, MOVING, UNPACKING ..........................2
1.0 INSTALLATION ...................................................3
2.0 OPERATION .......................................................4
3.0 MAINTENANCE .................................................6
SIZING ......................................................................6
ENGINEERING DATA.................................................7
ELECTRICAL SCHEMATICS ........................................8
DIMENSIONS / WEIGHTS..........................................9
TROUBLESHOOTING...............................................10
PARTS LIST.............................................................11
WARRANTY............................................................12
Models: CRN25, CRN35, CRN50,
CRN75, CRN100

Table of Contents

Questions and Answers

  • D
    daniellebauerAug 6, 2025
    What to do if my Champion Dehumidifier refrigeration system is not functioning properly?
    • O
      oholdenAug 7, 2025
      First, ensure the power switch is 'ON'. Check if the line disconnect switch is open and close it if necessary. Inspect fuses and breakers for continuity. Have an electrician check the wiring and terminals for any faults or looseness. Verify that the ambient temperature is within the specified minimum and maximum ranges. Finally, clean the condenser fins and ensure free airflow across the condenser; if the problem continues, contact a qualified refrigeration repairman or the manufacturer’s service department.
  • T
    Tanner GarciaAug 16, 2025
    What to do if there is a high pressure drop across my Champion CRN50?
    • S
      srodriguezAug 17, 2025
      A high pressure drop could be due to excessive air flow, so check the flow rate. It could also be caused by freezing of moisture in the evaporator because the refrigeration system is improperly functioning. Another cause could be a clogged separator or an optional oil removal filter element; if this is the case, replace the filter element(s).
  • S
    smithjessicaAug 22, 2025
    What to do if the dew point indicator is in the red area on my Champion Dehumidifier?
    • D
      Dawn SmithAug 22, 2025
      The dew point indicator might be in the red area because the dryer is overloaded, resulting in a high air outlet temperature. It could also be that the refrigeration system is not functioning properly, resulting in a high air outlet temperature. Another possibility is that the temperature sensor is not properly attached, uninsulated, or malfunctioning; in this case, check the sensor bulb.
  • E
    eric14Sep 1, 2025
    Why is the refrigeration system not functioning properly in my Champion Dehumidifier?
    • C
      Chad RobinsonSep 1, 2025
      If the refrigeration system in your Champion Dehumidifier isn't working correctly, start by checking the unit's power supply. If the compressor cycles on and off, ensure the disconnect switch is closed. An electrician should inspect the electrical connections if there's a power failure, a line disconnect switch is open, there are blown fuses, an open breaker, or faulty wiring and loose terminals. Also check the minimum and maximum temperature ranges. Clean the condenser and ensure free airflow, considering high or low ambient conditions, dirty or clogged condenser fins, obstructed airflow across the condenser, or a non-functioning fan motor or fan control switch.
  • C
    christopher81Nov 11, 2025
    Why is there water downstream of my Champion CRN50?
    • C
      Carmen MooreNov 11, 2025
      This can happen due to several reasons. It could be residual free moisture in the downstream pipelines, so try blowing out the system with dry air. The air bypass system might be open, so check the valve positions. Ensure that the inlet and outlet connections are correctly connected. If temperatures surrounding air lines downstream of the dryer have dropped below the dryer’s dew point rating, insulate or heat trace air lines exposed to low ambients or dry air to lower the dew point. If there's excessive free moisture at the dryer inlet, install a separator ahead of the dryer. Check that the condensate is being automatically drained, and if the drain mechanism is clogged or inoperative, replace it, and open the drain line if it's restricted or frozen. If the dryer is overloaded, check the i...
  • E
    Erin BarnesNov 26, 2025
    What to do if there is water downstream of the Champion CRN50?
    • N
      Nathan MathewsNov 26, 2025
      If you find water downstream of your Champion Dehumidifier, several issues could be the cause. Start by blowing out the system with dry air to remove any residual moisture in the pipelines. Check the valve positions to ensure the air bypass system is not open. Verify that the inlet and outlet connections are correctly connected. If temperatures around the downstream air lines have dropped below the dryer's dew point rating, insulate or heat trace those lines. Ensure there isn't excessive free moisture at the dryer inlet; if so, install a separator ahead of the dryer. Check the drain mechanism for clogs and replace it if it's inoperative. Clear any restrictions or freezing in the drain line. For electric drains, reset the timer to ensure sufficient condensate removal. Also, check the inlet ...

Summary

General Safety Information

Pressurized Devices Safety

Safety precautions for pressure-containing devices, including maximum operating pressure.

Electrical Safety Guidelines

Safety guidelines for electrical connections, operation, and service work.

Breathing Air Quality

Information on air quality suitability for breathing and applicable standards.

Receiving, Moving, and Unpacking

Shipment Receiving and Inspection

Procedures for checking shipments for visible damage upon delivery.

Unpacking and Concealed Damage

Steps for identifying and reporting concealed damage found after unpacking.

Moving and Storage Precautions

Guidelines for safely moving and storing the dryer unit to prevent damage.

Installation Procedures

Installation Location Requirements

Guidance on selecting an appropriate, well-ventilated installation site.

Mounting and Clearance Specifications

Instructions for mounting the dryer and minimum clearance requirements.

Piping Connection Guidelines

Details on connecting air inlet, air outlet, and optional bypass piping.

Electrical Connections

Guidelines for connecting the dryer to the electrical power supply.

Moisture Separator Operation

Information on the moisture separator and its automatic drain functionality.

Operation and Controls

Minimum;Maximum Operating Conditions

Specifies the operational limits for air pressure, temperature, and ambient conditions.

Controller Interface Overview

Description of standard and optional controller interfaces and indicators.

Start-up Procedure

Steps to safely energize and start the dryer unit.

Timer Drain Programming Mode

Details on the timer drain functionality and its programming.

Maintenance and Sizing

Condenser Coil Cleaning

Instructions for cleaning the condenser coil to ensure efficient operation.

Moisture Separator;Filter Replacement

Guidance on replacing the moisture separator and oil removal filter elements.

Drain Check and Maintenance

Procedures for checking and maintaining the automatic drain mechanism.

Determining Dryer Capacity

Method for calculating the dryer's capacity based on operating conditions.

Engineering Data

Operating Conditions and System Data

Table detailing maximum operating conditions and refrigeration system specifications.

Electrical Specifications

Electrical requirements including voltage, amperage, and fuse sizes for different models.

Electrical Schematic

Schematics for Models 25-75

Electrical wiring diagram for specific CRN models and voltage configurations.

Schematics for Model 100

Electrical wiring diagram for the Model 100 unit.

Schematic Legend and Notes

Explanation of symbols used in schematics and notes on optional features.

Dimensions and Weights

Dimensional Data by Model

Table listing physical dimensions (A-J) for various dryer models.

Weight Information

Details on the weight of the dryers, with and without the oil removal filter.

Troubleshooting Guide

Water Downstream of Dryer

Troubleshooting steps for water found in downstream air lines.

High Pressure Drop

Causes and solutions for excessive pressure drop across the dryer.

Dew Point Indicator in Red

Diagnosing issues when the dew point indicator shows a high reading.

Refrigeration System Malfunctions

Troubleshooting common problems with the refrigeration system and compressor.

Parts List

Component Parts by Model and Voltage

List of part numbers for various components across different dryer models and voltages.

Maintenance Kits

Information on available maintenance kits for different flow rates.

Warranty Information

Warranty Terms and Conditions

Details on the manufacturer's warranty coverage, period, and limitations.

Service Department Authorization

Requirement for service department authorization before returning products or performing repairs.

Champion CRN50 Specifications

General IconGeneral
BrandChampion
ModelCRN50
CategoryDehumidifier
LanguageEnglish

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