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AirTek SC 500-A4 - User Manual

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SMART CYCLE
COLD TRAP
REFRIGERATED
AIR DRYERS
OPERATORS MANUAL:
MODELS SC/CT 40 to 3000
Service Department
1-800-451-6023
MAN-SCCT
PRICE $10.00

Table of Contents

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Summary

PRE-INSTALLATION

Inspection, Handling and Setup

Inspect dryer for damage upon arrival and file claims with the carrier immediately.

Cautions and Operating Warnings

Lists safety precautions for unit operation and handling.

DRYER INSTALLATION

Location of Dryer

Guidelines for selecting a suitable location for the dryer, considering ambient conditions.

Airline Plumbing

Instructions for connecting air lines, supporting plumbing, and using unions.

Electrical Connections

Details on making electrical connections, including disconnect switches and grounding.

PRINCIPLE OF OPERATION

Air System

Explains the function of air system components like precooler, evaporator, and separator.

Refrigeration System

Explains the compressor, condenser, and evaporator functions.

Panel A

Panel C

Panel C CT Dryer Only

DISPLAYS and ALARMS

DEW POINT CONTROLLER AND DISPLAY

Explains the dew point controller, display modes, and error codes.

START UP FOR MODELS SC;CT 40 - 250

DRYER START UP PROCEDURE:

1) Make main electrical connection to dryer and apply power.

Initial power connection and voltage check.

4) Dryers are shipped with TAGGED refrigeration service valves closed.

Procedure for opening tagged refrigeration service valves.

START UP FOR MODELS SC;CT 330 and UP.

ROUTINE MAINTENANCE AND SERVICE

Air Cooled Condenser

Importance of cleaning the air-cooled condenser for performance.

FOR THE REFRIGERATION SERVICE TECHNICIAN

Recharging Dryer - Refrigerant, Oil and Dryers

Procedures and tips for recharging refrigerant and oil.

Evaporator Leaks

Identifying and diagnosing evaporator leaks.

Refrigerant Control Valves

Details on expansion valves and superheat.

Service valve

Faulty Expansion Valve

Diagnostic code “E6”

A) Low Freon

Troubleshooting low freon charge leading to low suction pressure.

B) Pressure Switch

Diagnosing issues with the low-pressure switch.

D) Unit short-cycles.

Diagnosing short-cycling issues.

E) Weak Compressor

Identifying a weak compressor.

Diagnostic code “E6”

Shutdown on Low Suction PSI

Troubleshooting low suction pressure shutdown.

C) Unloader Solenoid Failing to Open

Troubleshooting unloader solenoid failure.

D) Refrigerant restriction

Identifying refrigerant system restrictions.

1) Liquid Line Solenoid

Troubleshooting the liquid line solenoid.

3) Faulty expansion valve

Diagnosing a faulty expansion valve.

Diagnostic code “E7”

A) Dryer Overload

Troubleshooting dryer overload conditions.

1. High Ambient

Checking high ambient temperature effects.

2. High Compressed Air Flow

Checking compressed air flow against dryer rating.

B) Poor Condenser Performance

Troubleshooting poor condenser performance.

Diagnostic code “E7”

Shutdown on High Head PSI

Explains E7 error for high head pressure shutdown.

F) Refrigerant Restriction

Identifying refrigerant system restrictions.

Diagnostic code “E9”

Drain Shutdown

Explains E9 error for drain shutdown.

INSTRUCTIONS FOR ORDERING REPAIR PARTS

When ordering parts, specify dryer model and serial number.

Guidance on specifying model and serial number for parts orders.

REPLACING COALESCER ELEMENTS (CT UNITS ONLY)

AIRTEK WARRANTY

Warranty Procedure...

Steps for initiating a warranty claim and service.

Warranty Parts and Returns...

Process for obtaining and returning warranty parts.

What is covered by Standard Warranty (first year)....

Details of components covered in the first year warranty.

What is covered by Extended Warranty (second year)...

Warranty Registration...

WARRANTY REGISTRATION CARD REFRIGERATED AIR DRYER

IMPORTANT! Mail or Fax (716-685-1010) Today!

Instruction to mail or fax the warranty card promptly.

AirTek SC 500-A4 Specifications

General IconGeneral
BrandAirTek
ModelSC 500-A4
CategoryDryer
LanguageEnglish

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