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INTEGRITY SERIES
K_NA4C3P21R
Keep This Manual
With Air Conditioner
AIR CONDITIONER
OPERATOR'S MANUAL
CAUTION
KOOLTRONIC, INC.
BEFORE INSTALLING AND
30 Pennington-Hopewell Road
USING THIS AIR CONDITIONER,
Pennington, NJ 08534
IT IS IMPORTANT THAT THIS
609 • 466-3400
MANUAL BE READ AND
FAX: 609 • 466-1114
UNDERSTOOD THOROUGHLY
www.kooltronic.com
900-039-42
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Table of Contents
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Summary of Contents for Kooltronic K_NA4C3P21R
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Page 1: Air Conditioner
INTEGRITY SERIES K_NA4C3P21R Keep This Manual With Air Conditioner AIR CONDITIONER OPERATOR'S MANUAL CAUTION KOOLTRONIC, INC. BEFORE INSTALLING AND 30 Pennington-Hopewell Road USING THIS AIR CONDITIONER, Pennington, NJ 08534 IT IS IMPORTANT THAT THIS 609 • 466-3400 MANUAL BE READ AND FAX: 609 •... -
Page 2: Table Of Contents
Introduction Incoming Inspection III. Product Handling Product Identification Label Principles of Operation Pre-Installation Testing VII. Specific Model Data VIII. Maintenance Trouble Shooting Warranty I. Introduction Kooltronic Air Conditioners are designed to provide a cool, dehumidified environment for your electronic components. There are models to fit virtually all sizes and shapes of electronics enclosures, in capacities ranging from 1,000 to 30,000 BTU/H. -
Page 3: Incoming Inspection
Manual. See section VI PRE-INSTALLATION TESTING. 2) Before operating the Kooltronic Air Conditioner be certain that it is placed in its correct mounting position. All Air Conditioners containing an M, P, or V as part of the model number are designed to operate in a vertical position only. - Page 4 IV. Product Identification and Labels Each Kooltronic Air Conditioner includes an identification label. This label provides: ➀ Model Number ➁ Serial Number ➂ Electrical power characteristics ➃ Maximum and minimum ambient operating temperatures ➄ Cooling capacity ➅ Type and amount of refrigerant required for recharging ➆...
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Page 5: Principles Of Operation
(See illustration at right). The Low Temperature Thermostat has a test start relay. When the air conditioner is turned on it will run constantly for the first 15 minutes regardless of external temperatures. Afterwards, if the entering evaporator air temperature is lower than the thermostat set point, the compressor and condenser blower will stop, and the thermostat will begin to control the air conditioner. -
Page 6: Mounting
115°F enclosure temperature, depending on the ambient temperatures. VI. Pre-Installation Testing Before mounting the air conditioner to the enclosure, test for proper operation. This will verify the shipping integrity of the system. Please follow the steps below prior to installation. -
Page 7: Specific Model Data
VII. Specific Model Data Mounting The Kooltronic Special Purpose Air Conditioners K_NA4C3P21R have been engineered to be installed easily. These units utilize double layer gaskets. The first gasket layer is placed on the outside perimeter of the front panel that is sealed against the customer enclosure. The second layer is placed on the two cutouts in the front panel. -
Page 8: Drawings And Dimensions
FIGURE 1 CONDENSER OUTLET (Heated Ambient Air Out) (2 Places) COOL AIR TO ENCLOSURE HEATED AIR FROM ENCLOSURE Dimensions, inches [mm], are for reference only and are subject to change. K_NA4C3P21R SERIES 21.19 [538.2] 12.01 [305.0] 1.75 [44.4] 21.19 [538.2]... -
Page 9: Technical Data
Technical Data BTU/H BTU/H Model Capacity 95°F/95°F KNA4C3P21R 3000 2160 K2NA4C3P21R 3000 2160 K2NA4C3P21R5 3000 1940 Rating shown is for operation at maximum ambient temperature. Major Component Replacements Part Compressor Compressor Impeller Condenser Impeller Capacitor Evaporator Fan Filter NOTE: Part Numbers shown are for 60Hz/1Ø. For 50Hz consult Kooltronic. Standard Features Air filter CFC-Free refrigerant... -
Page 10: Wiring Schematic
OPTIONAL SHORT CYCLE PROTECTOR OPTIONAL HEATER WD-879 EVAPORATOR SUPPRESSOR 115 V 230 V T-STAT SHORT CYCLE TIMER THERMAL HEATER CUTOUT T-STAT SPEED CONTROLLER CONDENSER BLOWER MOTOR CAP. RELAY TO CUSTOMER CAP. ALARM SYSTEM K_NA4C3P21R COOLING EFFECT DETECTOR TERMINAL BLOCK (OPTIONAL) -
Page 11: Maintenance
Filter recoating adhesive is recommended. Appropriate disposable filters are available from Kooltronic. If filter service is neglected or delayed, the air conditioner will not perform at its design capacity. The first indication of excessively clogged air filters is usually a gradual increase of temperature within the equipment cabinet. -
Page 12: Maintenance
If field replacement of a blower motor is necessary, most blower assemblies, including the mounting plate, are readily removable. Each of the blower mounting plates is held to the air conditioner cabinet structure by screws and nuts. For installation of the replacement blower, electrical connections may be broken at the terminal block, or power leads may be cut and appropriately spliced together. -
Page 13: Trouble Shooting
IX. Trouble-Shooting Each Kooltronic Air Conditioner is engineered for performance and built for reliability. They are designed to require no routine maintenance other than the cleaning of ambient air filters. If your air conditioner should require warranty service, please contact Kooltronic. If you require service out of warranty, we have compiled a trouble-shooting chart to assist your service personnel. - Page 14 This page intentionally left blank...
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Page 15: Warranty
Voltage variation no greater than ■ rating Frequency variation no greater than ■ nameplate rating Maximum cooling load no higher than air conditioner ■ nameplate rating Waiting five minutes before restarting air conditioner ■ after intentional or accidental shutoff Compliance to all other installation, maintenance and ■... - Page 16 KoolTray II - 19” width fan cooling units. Available in 1, 2 and 3 row configurations. Custom/Special units available. Free comprehensive Design Guide / Catalog for selecting the proper Air Conditioner, Heat Exchanger, Blower or Fan. FREE! Visit us online at: www.kooltronic.com...
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