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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
900-039-64 (6/23)
(CDR: 20498)
Keep This Manual
With Air Conditioner
AIR CONDITIONER
GUARDIAN SERIES
K2NA6C26DP60L
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 K2NA6C26DP60L
- Page 1 GUARDIAN SERIES K2NA6C26DP60L 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. BEFORE INSTALLING AND 30 Pennington-Hopewell Road...
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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 Principles of Operation (con’t) UNITS EQUIPPED WITH LOW TEMPERATURE THERMOSTAT A Low Temperature Thermostat prevents the evaporator coil from freezing. In conditions of low ambient temperature and low enclosure load, the thermostat regulates the return air temperature from 75°F to 86°F. The CONDENSER standard set point of the Low Temperature Thermostat is 75°F.
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Page 9: Pre-Installation Testing
VII. Specific Model Data Mounting The Kooltronic Special Purpose Air Conditioners K2NA4C26DP60L have been engineered to be installed easily. Prior to mounting, refer to pages 8 and 9 for the drawings showing dimensions and locations of mounting holes and cutouts. Prior to cutting or drilling, make sure that cutouts and mounting holes do not interfere with components inside the cabinet. - Page 10 MOUNTING DRAWING 2. Attach the mounting bracket to the enclosure using i nch -inch nuts, (3) sealing washers and (3) mounting nuts. Sealing washers must be placed against customer enclosure (see mounting drawing). ENCLOSURE WALL WASHER W/ NEOPRENE (8) 3. Place the air conditioner on the lift truck. (NEOPRENE SIDE AGAINST MOUNTING BRACKET ENCLOSURE)
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Page 11: Drawings And Dimensions
Drawings and Dimensions MOUNTING PLAN WARM AIR RETURN FROM 10.56 10.56 ENCLOSURE [268.3] [268.3] 1.51 COOL AIR OUTLET [38.4] TO ENCLOSURE (11) .312 [7.9] DIA. HOLES 22.03 14.76 [559.7] [374.9] TYP. 7.87 [199.9] 16.31 15.18 1.20 [414.3] [385.5] [30.4] TYP. 2.67 [67.8] 18.81... - Page 12 Drawings and Dimensions...
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Page 13: Standard Features
Units in bold are current standard products. Other units are prior product offerings and shown for reference only. Technical Data - Current Models BTU/H Ambient Running Approximate Capacity BTU/H Temp. °F Amps Weight Model 60/50 Hz 95°F/95°F Max./Min. Volts 131°F/131°F (lbs.) K2NA6C26DP60L 26000... -
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: Refrigerant Loss
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.
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