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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 carton tears, dents, scratches, loose articles or evidence of oil are signs
of damage and should be noted on the Freight Bill. Cartons should be opened promptly and the units inspected
for CONCEALED DAMAGE. Kooltronic Air Conditioners must be delivered in the proper mounting position to
assure that damage to the compressor has not occurred during shipping. Any Kooltronic Air Conditioner that is
delivered removed from the banded pallet, lying down or double stacked should be refused.

An immediate claim MUST be filed with the freight carrier and an inspection requested. Retain all packing
materials. Kooltronic cannot assume responsibility for Consignee's failure to file a timely freight claim.

III. Product Handling:

1) Do not attempt to operate your Kooltronic Air Conditioner until you read and thoroughly understand this

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.  

CAUTION

3) Before operating this unit, all electrical wiring must be checked to assure the proper connection to the

correct power source. Minimum circuit ampacity should be at least 125% of the amperage found on the
nameplate for the corresponding voltage. Do not exceed the maximum fuse size found on the nameplate.

4) We do not recommend that Air Conditioners be shipped to their final destination attached to an enclosure.

In the event that the Air Conditioner needs to be shipped attached to an enclosure it is strongly
recommended that proper support be provided for the Air Conditioner. Excessive vibration can occur if Air
Conditioners are not properly supported when shipped on enclosures, increasing the potential for internal
damage and voiding the warranty.

5)

PROCEDURE FOR PROPER PACKING AND SHIPMENT OF KOOLTRONIC AIR
CONDITIONERS:

Keep Air Conditioner in proper upright position indicated by arrow markers.

Pack Air Conditioner in an appropriate carton (preferably original carton if possible), with
adequate internal protective packaging, making sure carton is marked and is kept in correct
upright position.

For local, controlled transportation, strap carton to a secure part of truck to prevent falling or
sliding, minimize vibration, etc.

For common carrier shipment, band unit(s) securely to a pallet. Unpalleted shipment risks
severe damage which voids the warranty.

Kooltronic Air Conditioners must be operated in their proper mounting position. If attempts are

made to operate a unit that is not in its designed mounting position, permanent compressor

damage will occur. This action will void the warranty. To avoid compressor damage do not tip the

unit more than 45° from its proper mounting position.

Summary of Contents for Guardian K2NA4C3DP24L

Page 1: ...THAT THIS MANUAL BE READ AND UNDERSTOOD THOROUGHLY KOOLTRONIC INC 30 Pennington Hopewell Road Pennington NJ 08534 609 466 3400 FAX 609 466 1114 www kooltronic com 900 039 85 12 21 CDR 20369 GUARDIAN...

Page 2: ...c 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 virtual...

Page 3: ...prior to operating in order to allow the compressor oil to drain to the compressor sump area CAUTION 3 Before operating this unit all electrical wiring must be checked to assure the proper connection...

Page 4: ...incorrect type or amount of refrigerant will adversely affect performance and may damage the unit r Make sure that these parameters are met Failure to do so may result in permanent damage to the unit...

Page 5: ...n discharged to the environment 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 temperature...

Page 6: ...the new set point value push the SET key again or wait 10 seconds HOW TO CHANGE A PARAMETER VALUE To change a parameter s value operate as follows 1 Enter the Programming mode by pressing the SET plu...

Page 7: ...p code 7 0 65535 rEL Software release 0 rSE Real set point 0 onF on off key enabling ES PbC Kind of probe ntc Adr Serial address 1 1 247 HES Differential for energy saving 0 F 54 54 rrd Regulation res...

Page 8: ...ate the air conditioner for approximately ten 10 minutes During this period the evaporator fan should operate continuously and no unusual noise or vibration should be evident The condenser blower is c...

Page 9: ...10 for the location of all mounting holes and cutouts Make sure the cutouts don t interfere with components inside your cabinet Proper alignment of all air inlets and outlets is essential for optimum...

Page 10: ...2 8 42 213 8 1 24 31 5 9 65 245 1 1 00 25 4 2 14 54 4 6 50 165 1 6 90 175 2 4 28 108 7 1 10 27 9 1 03 26 1 8 312 7 9 DIA HOLES 1 2 MOUNTING PLAN Dimensions inches mm are for reference only and are su...

Page 11: ...4 244 8 1 04 26 4 12 00 304 8 1 55 39 4 4 26 108 2 POWER CORD 68 17 0 PROGRAMMABLE THERMOSTAT TEMPERATURE ALARM TERMINAL BLOCK Drawings and Dimensions con t Dimensions inches mm are for reference only...

Page 12: ...able Thermostat Six Foot 1 8m minimum 3 Wire Power Cord Stainless Steel Shell NEMA 4X models UL CUL Listed GuardianX NEMA 4X model offered with these additional features NEMA 4X Rating Maintained UL50...

Page 13: ...d operation under these conditions will cause damage shorten compressor life and void the warranty A Filter and condenser coil service The filter holder must be removed in order to clean the filters A...

Page 14: ...ine Voltage Check Nameplate Voltage against supply Voltage Compressor and Condenser Blower do not run Return temperature is Failed Compressor Check Compressor wire connections above set point plus dif...

Page 15: ...r Clean Coil difference between return and Coil clogged supply air is less than 10 F Evaporator Blower Condenser Loss of Refrigerant Locate and repair leak Blower and Compressor are running Ice on Eva...

Page 16: ...eceived by customer Number of parts to be returned Product description model and serial number Reason for return Action requested Contact name telephone FAX numbers and e mail address Pack unit in a s...

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