Kooltronic Guardian K3NA4C3DP24L Operator's Manual
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Kooltronic Guardian K3NA4C3DP24L Operator's Manual

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OPERATOR'S MANUAL
CAUTION
BEFORE INSTALLING AND
USING THIS AIR CONDITIONER,
IT IS IMPORTANT THAT THIS
MANUAL BE READ AND
UNDERSTOOD THOROUGHLY
900-039-73 (10/21)
(CDR: 20368)
Keep This Manual
With Air Conditioner
AIR CONDITIONER
GUARDIAN SERIES
K3NA4C3DP24L
480 Volt 1-PHASE
Find additional information on
this model at kooltronic.com or
use the Technical Documents
QR code below.
Technical
Documents
KOOLTRONIC, INC.
30 Pennington-Hopewell Road
Pennington, NJ 08534
609 • 466-3400
FAX: 609 • 466-1114
www.kooltronic.com

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Summary of Contents for Kooltronic Guardian K3NA4C3DP24L

  • Page 1 GUARDIAN SERIES K3NA4C3DP24L 480 Volt 1-PHASE Find additional information on Keep This Manual this model at kooltronic.com or use the Technical Documents With Air Conditioner QR code below. Technical Documents AIR CONDITIONER OPERATOR'S MANUAL CAUTION KOOLTRONIC, INC. 30 Pennington-Hopewell Road...

  • Page 2: Table Of Contents

    Trouble Shooting 15 - 16 Warranty NOTE: Wiring Schematics are available on the specific model page of the Kooltronic website. 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. This Air Conditioner is designed to operate in a vertical position only. This placement must be done a minimum of 5 minutes prior to operating in order to allow the compressor oil to drain to the compressor sump area.

  • Page 4: Product Identification And Nameplate

    IV. Product Identification and Nameplate Each Kooltronic Air Conditioner includes an identification nameplate. This nameplate provides: Model Number Serial Number Electrical power characteristics Maximum and minimum ambient operating temperatures Cooling capacity Type and amount of refrigerant required for recharging Design Pressure...

  • Page 5: Principles Of Operation

    When the Kooltronic Air Conditioner is properly sized it should operate constantly and maintain 75°F to 115°F enclosure temperature, depending on the ambient temperatures.
  • Page 6 Principles of Operation (con’t) MAX AND MIN TEMPERATURE MEMORIZATION 2) Select the required parameter. Press the SET HOW TO SEE THE MIN TEMPERATURE: key to display its value. 3) Use up or down arrow keys to change its value. 1) Press and release the down arrow key.
  • Page 7 Principles of Operation (con’t) RESETTING If it becomes necessary to reset the unit, the factory settings are as follows: RANGE PARAMETER DESCRIPTION VALUE UNIT MINIMUM MAXIMUM Set Point °F Differential °F Fourth probe display Third probe display Evaporator probe display Room probe display Differential for temperature alarm recovery °F...
  • Page 8 When the ambient temperature is lower than 85°F the condenser fan will cycle. In applications having frequent voluntary heat load fluctuations, an optional Compressor Short Cycle Protector is recommended. When the Kooltronic Air Conditioner is properly sized it should operate constantly and maintain 75°F to 115°F enclosure temperature, depending on the ambient temperatures.

  • Page 9: Pre-Installation Testing

    7. Reset the thermostat to the factory setting. WARNING: Operating the unit below 75°F may result in freezing of the evaporator coil. 8. Turn off the electrical power and disconnect the air conditioner from the power source. NOTE: Before shipment all Kooltronic Air Conditioners are subjected to a performance test.

  • Page 10: Specific Model Data

    VII. Specific Model Data Mounting Kooltronic Air Conditioners have been engineered to be installed easily. To avoid damaging your Air Conditioner, please read the following information before installation. • Refer to page 11 for the location of all mounting holes and cutouts.

  • Page 11: Drawings And Dimensions

    Drawings and Dimensions MOUNTING PLAN 2.60 [66.0] [11.7] [21.8] 10.39 [263.9] 1.24 10.06 [31.5] [255.5] 9.65 10.52 [245.1] [267.2] 1.00 [25.4] 6.90 WARM AIR RETURN FROM ENCLOSURE 4.28 [175.2] 8.42 [108.7] [213.8] COOL AIR OUTLET 2.14 TO ENCLOSURE [54.4] 6.50 5.03 [165.1] [127.7]...
  • Page 12 Drawings and Dimensions (con’t)

  • Page 13: Technical Data

    Technical Data Ambient Running Approximate NEMA BTU/H BTU/H Temp. °F Volts/ Amps Weight Model Rating Capacity 95°F/95°F Max./Min. Phase 125°F/125°F (lbs.) K3NA4C3DP24L 3000 2500 125/-20 480/1 K3NA4C3DP24LV 3000 2500 125/-20 480/1 Major Component Replacements K3NA4C3DP24L K3NA4C3DP24L K3NA4C3DP24LV K3NA4C3DP24LV (Units with (Units with Low Temperature Programmable...

  • Page 14: Maintenance

    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.

  • Page 15: Trouble Shooting

    D. Refrigerant Loss Kooltronic Air Conditioners are subjected to a series of tests to detect refrigerant leaks, during and after manufacture. It is possible that shipping or other damage, or microscopic leaks over a long period, may result in the need for replenishment of refrigerant charge. When it has been verified by a Certified EPA Technician that a refrigerant shortage does exist, the leak must be repaired.
  • Page 16 Problem Cause Solution Unit not cooling. (Temperature Failed Evaporator Blower. Check Blower wire connections. difference between return and Check blower capacitor. supply air is less than 10°F). Replace Evaporator Blower. Compressor and Condenser Blower are running. Evaporator Blower does not run. Unit not cooling.
  • Page 17 THIS WARRANTY CONSTITUTES THE ENTIRE WARRANTY WITH RESPECT TO THE PRODUCT AND IS IN LIEU OF ALL OTHERS, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY AND WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE AND IN NO EVENT IS KOOLTRONIC RESPONSIBLE FOR ANY CONSEQUENTIAL DAMAGES OF ANY NATURE WHATSOEVER.

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Guardian k3na4c3dp24lv

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