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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 Page I. Introduction 2 II. Incoming Inspection 3 III. Product Handling 3 IV. Product Identification Label 4 V. Principles of Operation 5 - 6 VI. Pre-Installation Testing 6 VII. Specific Model Data 7 - 10 Mounting Drawings and Dimensions Technical Data Major Component Replacements Standard Features Wiring Schematic VIII. Maintenance 11 - 12 IX. Trouble Shooting 13 X. Warranty 15 I. Introduction Kooltronic Air Conditioners are designed to provide a cool, dehumidified environment
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II. Incoming Inspection Kooltronic Air Conditioners are designed, built and packaged to withstand the shock and vibration normally associated with shipment by common carriers. Occasionally improper handling during shipping causes damage. Such handling could include unbanding of palletized shipments, failing to respect "This Side Up" arrows, rough handling, falling off conveyors, excessive vibration, crushing, etc. Therefore, a thorough inspection should be done upon receipt of all shipments. Any
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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 Design Pressure ➇ Underwriters Laboratories Inc. Listed or Recognized Marks and NEMA ratings We recommend you copy this information from your unit. Air Conditioner MODEL NO. SER
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V. Principles of Operation COOL AIR TO ENCLOSURE CONDENSER OUTLET (Heated Ambient Air Out) (2 Places) HEATED AIR FROM ENCLOSURE CONDENSER HEAT EXCHANGER EVAPORATOR HEAT EXCHANGER COMPRESSOR CONDENSER AIR INLET (Ambient Air In) P21 Kooltronic Air Conditioners are required when the equipment operating temperature must be kept near or lower than the ambient room temperature, and/or the cabinet must be sealed from dust, fumes, oil, corrosives and other contaminants. These Air Conditioners utilize a
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The heater kit consists of a heater, a heat control thermostat and a heater limiter. The heater control thermostat is a bimetal disk with a fixed set point of 60°F. When the entering evaporator air temperature rises above 60°F the heater shuts off, and when the evaporator air temperature falls below 40°F the heater will engage. The contact points of the alarm thermostat are normally closed. If the entering evaporator air temperature exceeds 120°F the alarm thermostat contacts open, and when the
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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. The first gasket layer will allow a small amount of water between the two layers. The second gasket layer totally protects an enc
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Drawings and Dimensions FIGURE 1 MOUNTING PLAN (6) .312 [7.9] DIA. 12.01 HOLES CONDENSER OUTLET 1.25 [305.0] [31.7] (Heated Ambient Air Out) (2 Places) 7.00 [177.8] 1.75 [44.4] 20.09 [510.2] COOL AIR TO 21.19 TYP. ENCLOSURE [538.2] 7.94 7.00 [201.6] [177.8] TYP. CONDENSER AIR 2.03 INLET (Ambient Air In) [51.5] TYP. 2.64 [67.0] 12.48 .48 [316.9] [12.1] 4.75 HEATED AIR FROM [120.6] ENCLOSURE TYP. Dimensions, inches [mm], are for reference only and are subject to ch
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Technical Data Ambient Ambient Approximate BTU/H BTU/H Temp. °F Temp. °F Running Weight Model Capacity 95°F/95°F Max. Min. Volts Hz Amps (lbs.) KNA4C3P21R 3000 2160 125 0 115 60 11.3 76 K2NA4C3P21R 3000 2160 131 0 230 60 4.7 76 K2NA4C3P21R5 3000 1940 131 0 230 50 4.6 76 Rating shown is for operation at maximum ambient temperature. * Major Component Replacements KNA4C3P21R K2NA4C3P21R K2NA4C3P21R5 Part Part Number Part Number Part Number Compressor 0665-101 0665-107 0665-110 Compressor Impeller 0
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Wiring Schematic WE BK GN EVAPORATOR FAN SUPPRESSOR 115 V 230 V T-STAT OPTIONAL SHORT CYCLE SHORT PROTECTOR CYCLE TIMER OPTIONAL THERMAL HEATER HEATER CUTOUT T-STAT SPEED CONTROLLER CONDENSER BLOWER MOTOR CAP. R C O/L S COOLING EFFECT DETECTOR M S RELAY 2 1 TO CUSTOMER CAP. ALARM SYSTEM TERMINAL BLOCK (OPTIONAL) K_NA4C3P21R WD-879 10
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VIII. Maintenance Kooltronic Water-Cooled Air Conditioners require no maintenance. Air-Cooled Air Conditioners are designed to require only the routine cleaning of air filters to assure unimpeded airflow through the condenser heat exchanger. It is not possible to recommend specific filter cleaning intervals since the level and the nature of airborne particulate matter differs widely with each installation. It is generally sufficient to remove and wash the reusable aluminum mesh air filters when
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B. Blowers The design life of the blowers used in all Kooltronic Air Conditioners is substantially in excess of 20,000 hours. All Kooltronic condenser and evaporator blowers are equipped with automatic-reset thermal overload protectors. CAUTION Before opening the air conditioner, disconnect all power. 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 c
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.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. If additional assistance is required contact Kooltronic at (609) 466-3400. Problem Cause
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X. Warranty KOOLTRONIC products are warranted to be free of KOOLTRONIC assumes no liability beyond the repair or defects in workmanship, materials and components. The replacement of its own product. This Warranty does not following warranty periods apply from date of shipment: cover: ■ ■ Air moving devices and components: 20,000 hours Labor or reimbursement of labor for evaluation, removal, continuous duty installation, repair, or cost of any warranted part, except at the KOOLTRONIC factory in P
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NEW! BEAT THE HEAT! Motorized Impellers - Delivers high CFM rates in a minimum amount of space. Basic and Packaged Blowers - Basic units and packaged units for 19” EIA Rack; w/Grille, Filter and Guards. Capacities from Advantage Air Conditioners and Heat Exchangers - 130 cfm to 1250 cfm. Readyfor Indoor or Outdoor Installation Right Out of the Box! With rounded edges; no visible hardware and a textured baked powder finish to blend easily with contemporary enclosure designs. Integral weather pro
