Non-Cycling Refrigerate Air Dryers Installation & Operation Maintenance Manual Models CNCM10 CNCM18 CNCMIOM 01-02 Rev. REL. Model Number: Serial Number: FILL IN COMPLETELY AT INSTALLATION Coaire Technologies Corporation 12226 Coast Drive, Whittier, CA 90601 ◊ TEL.(562)463-3935 ◊ (562)463-4928 website: www.coaire.com ■ e-mail: sales@coaire.com/support@coaire.com Printed in U.S.A. FORM CM-AD03 FEB.
STATEMENT OF WARRANTY TERMS & CONDITIONS COAIRE’s refrigerated air dryers are warranted to be free of defects in materials and workmanship under proper use, installation, and application. This warranty shall be for a period of 15 months from date of shipment from our factory or other stocking facilities or 12 months from date of installation. Proof of installation date will be required. All dryers outside the U.S. and Canada carry a parts only warranty.
TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. 7. 8. SAFETY RULES 1.1 Explanation of Convention Symbols Used in This Manual 1.2 Warnings 1.3 Proper Use of the Dryer INSTALLATION 2.1 Transporting the Unit 2.2 Installation site 2.3 Installation layout 2.4 Connection to the Compressed Air System 2.5 Connection to the Main Power 2.6 Condensate Drain START UP 3.1 Preliminary Operations 3.2 Initial Start Up 3.3 Operation and Shut-down TECHNICAL SPECIFICATIONS 4.
1.1 DEFINITION OF THE SAFETY SYMBOLS Carefully read instruction manual before attempting any service or maintenance procedures on the dryer. Caution warning sign. Risk of danger or possibility of damage to equipment, if related text is not followed properly. Electrical hazard. Warning message indicates practices or procedures that could result in personal injury or fatality if not followed correctly. Danger hazard. Part or system under pressure. Danger hazard.
1.2 WARNINGS Compressed air is a highly hazardous energy source. Never work on the dryer with pressure in the system. Never point the compressed air or the condensate drain outlet hoses towards anybody. The user is responsible for the proper installation of the dryer. Failure to follow instructions given in the “Installation” chapter will void the warranty. Improper installation can create dangerous situations for personnel and/or damages to the machine could occur.
2.2 INSTALLATION SITE Failure to install dryer in the proper ambient conditions will affect the dryer’s ability to condense refrigerant gas. This can cause higher loads on the compressor, loss of dryer efficiency and performance, overheated condenser fan motors, electrical component failure and dryer failure due to the following: compressor loss, fan motor failure and electrical component failure. Failures of this type will affect warranty considerations.
2.4 CONNECTION TO THE COMPRESSED AIR SYSTEM Operations to be performed by qualified personnel only. Never work on compressed air piping under pressure. The user is responsible to ensure that the dryer will never be operated with pressure exceeding the maximum pressure rating on the unit data tag. Over pressurizing the dryer could be dangerous for both the operator and the machine. The air temperature and the scfm entering the dryer must comply with the limits reported on the data nameplate.
3.1 PRELIMINARY OPERATION Verify that the operating parameters match with the nominal values reported on the data nameplate of the dryer (voltage, frequency, air pressure, air temperature, ambient temperature, etc.). This dryer has been thoroughly tested, packaged and inspected prior to shipment. Nevertheless, the unit could be damaged during transportation, check the integrity of the dryer during initial start-up and monitor operation during the first hours of operation.
4.1 TECHNICAL SPECIFICATIONS CNC18-CNC75 (115/1/60) A I H I B J E INLET Entrée 1 D F OUTLET Sortie 2 C 3 A B C D E F G H I J K L M Inches 14.562 17.625 17.437 2.500 1.375 2.00 2.750 15.562 1.062 2.437 .375 1.00 .562 mm 370 449 443 65 35 51 69 395 27 62 10 26 14 B G A 1-Rocker On/Off Switch-Illuminated 2-Power Supply Cord 3-Condensate Drain DRYER MODEL Air flow rate at nominal condition1 Pressure DewPoint at nominal condition1 Nominal ambient temperature Max. ambient temperature Min.
4.2 TECHNICAL SPECIFICATIONS CNC18-CNC75 (230/1/60) A I H I B J E INLET Entrée 1 D F OUTLET Sortie 2 C 3 A B C D E F G H I J K L M Inches 14.562 17.625 17.437 2.500 1.375 2.00 2.750 15.562 1.062 2.437 .375 1.00 .562 mm 370 449 443 65 35 51 69 395 27 62 10 26 14 B G A 1-Rocker On/Off Switch-Illuminated 2-Power Supply Cord 3-Condensate Drain DRYER MODEL Air flow rate at nominal condition1 Pressure DewPoint at nominal condition1 Nominal ambient temperature Max. ambient temperature Min.
5.1 OPERATION Operating principal-The dryer models described in this manual operate all on the same principal. The hot moisture laden air enters an air to air heat exchanger. The air then goes through the evaporator, also known as the air to refrigerant heat exchanger. The temperature of the air is reduced to approximately 35-39 degrees Fahrenheit, causing water vapor to condense to liquid. The liquid is continuously coalesced and collected in the separator for removal by the condensate drain.
5.3 REFRIGERATION COMPRESSOR The refrigeration compressor is the pump of the system where the gas coming from the evaporator (low pressure side) is compressed up to the condensation pressure (high pressure side). The compressors utilized are manufactured by primary companies and are designed for applications where high compression ratios and wide temperature changes are present. The fully sealed construction is perfectly gas tight, so ensuring high-energy efficiency and long useful life.
5.10 CONDENSATE SEPARATOR The cold air exiting the evaporator circulates into the centrifugal type condensate separator. By means of a winged diaphragm, the incoming air attains a high-speed rotary motion. Therefore, due the centrifugal force, the condensed particles are projected onto the lateral surface and then migrate to the bottom, which acts as an accumulation reservoir for the separated condensate and is expelled by the drain solenoid valve at regular intervals.
5.21 ELECTRICAL SCHEMATIC CNCM10 & CNCM18 DMC5 PE Air Dryer Controller POPui ssa WE R nce N COM B D PROBE Sonde Vc M PR EVB M EVD Legend: IG : Rocker On/Off switch K : Refrigeration compressor KR : Compressor start-up relay KM : Compressor electric motor KT : Compressor thermal protection VC PR EVB EVD : Condenser fan motor : DMC5 probe : Hot gas by-pass solenoid valve : Condensate drain solenoid valve 6.1 MAINTENANCE SCHEDULE Only qualified personnel should perform maintenance operations.
6.2 REPLACEMENT PARTS = Suggested spare part.
restore the normal conditions. Î The ambient temperature is too high or the room ventilation is insufficient provide proper ventilation. Î The set-point of the DMC5 is too high - see paragraph SET-UP of the DMC5. Î The condenser is dirty - clean it. Î The dryer doesn’t drain the condensate - see specific point. Î There is a leak in the refrigeration circuit - contact a certified refrigeration technician Î DewPoint too low. Î Î Î Î Î Î Î Î Verify wiring of the DMC5.
8.1 TABLE OF COMPONENTS - EXPLODED VIEW –CNCM10 & CNCM18 The components table given below refers to the relevant exploded views attached to this manual.
For complete line of additional product information, please contact your local COAIRE distributor. DISTRIBUTED BY COAIRE Technologies reverse the right to make changes, at any time without notice as a result of our commitment to continuous improvement. Coaire Technologies Corporation 12226 Coast Drive, Whittier, CA 90601 ◊ TEL.(562)463-3935 ◊ (562)463-4928 website: www.coaire.com ■ e-mail: sales@coaire.com/support@coaire.
