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X. Standard Warranty

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.

RETURN AUTHORIZATION (RA) PROCEDURE

KOOLTRONIC products are warranted to be free of defects
in workmanship, materials and components. The following
warranty periods apply from date of shipment:

Air moving devices/components and hermetic system
components: 1 year

Spare parts, except filters: 90 days

The above warranty applies when the equipment is operated
under the following conditions:

Ambient temperature not in excess of 125°F (52°C) in
normal atmosphere or as stated on product nameplate

Voltage variation no greater than ±  10% from nameplate
rating

Frequency variation no greater than ± 3Hz from 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
operating instructions, as supplied

The purchaser assumes the responsibility of grounding
the unit and installing it in accordance with local electrical
and safety codes, as well as the National Electric Code
(NEC) and OSHA

KOOLTRONIC cannot assume responsibility for
mis-application of its products or the erroneous
selection of an inappropriate product by a non-
authorized KOOLTRONIC representative . Our
applications engineers will gladly assist in the
selection of the proper product, provided all
required details of the application are furnished.

All returns require a Return Authorization number whether
the return is for warranty or non-warranty repair, rotation of
stock, damage or any other reason. Returns without an RA
number will be refused.

Customer must call KOOLTRONIC After Sale Kare (ASK),
Pennington, New Jersey (609 • 466 • 3400) to obtain an RA
number, or email [email protected].

The following information is required when an RA is
requested:

- Original customer Purchase Order number and date
- Date product was received 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 suitable container for shipment, preferably the

original packaging if available. All Air Conditioners must be
returned in an upright position properly secured to a pallet.

Improper packaging may void warranty claim.

If an Air

Conditioner is received laying down or shipped via UPS or
similar small parcel service the warranty will be void.

Mark carton prominently with KOOLTRONIC’s Return
Authorization Number.

Enclose all pertinent documents.

Freight charges on all products returned to KOOLTRONIC
shall be paid by the customer. Unauthorized collect shipments
will be refused.

If a unit is repaired under Warranty, KOOLTRONIC will pay
the freight charges both ways within the Continental USA
at KOOLTRONIC’s negotiated rates. Warranty repaired
units will be returned to customer at KOOLTRONIC expense
only within the Continental USA.

All authorized returns are subject to a restocking fee.

KOOLTRONIC assumes no liability beyond the repair or
replacement of its own product. This Warranty does not
cover:

Labor or reimbursement of labor for evaluation, removal,
installation, repair, or cost of any warranted part, unless
authorized in writing by KOOLTRONIC

Use of equipment for other than its designed purpose or
operating conditions

Operation in harsh, oily, corrosive or other abnormal
environmental conditions, without the proper filtration,
sealing, protective coatings and/or weather protection

Damage to hermetic system resulting from continuous
operation with dirty or clogged air filters or improper or
negligent maintenance

Use of refrigerant other than designated

Customer modification or abuse

Shipping damage or other accident (Claims for shipping
damage are the responsibility of the customer. Timely
claims must be filed by the customer with the freight carrier)

Cracked or broken hermetic tubing, brazed joints or  other
internal damage caused by shipping or mishandling

Damage caused by shipping units attached to an
enclosure

Any and all conditions resulting from noncompliance with
the preceding operating conditions

Returned freight must be paid by customer

This standard warranty does not apply to custom
products. Consult your KOOLTRONIC representative
for limitations

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Summary of Contents for K A6C4NPT33L Series

Page 1: ...ANT 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 900 034 13 12 21 CDR 20369 NPT SERIES K_A6C4NPT33L Find additional information on this model at kooltronic com or use the Technical Documents QR code below Technical Documents ...

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 virtually all sizes and shapes of electronics enclosures in capacities ranging from 1 000 to 30 000 BTU H Our closed loop design also ensures that your components will not be exposed to hot dirty operating c...

Page 3: ...s 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 name...

Page 4: ...e 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 ALL MOTORS ARE THERMALLY PROTECTED VIOLATES WARRANTY UNAUTHORIZED SERVICE OR MODIFICATION COMPARTMENT ONLY NEMA EEMAC UL50 BY UNDERWRITERS LABORATORIES INC TYPE 1 SPECIAL PURPOSE AIR CONDITIONER EQUIPMENT TYPE 3R ...

Page 5: ...or coil from freezing In conditions of low ambient temperature and low enclosure load the thermostat regulates the return air temperature from 75o F to 86o F The standard set point of the Low Temperature Thermostat is 75o F The set point can be changed to 70o F or to 79o F by changing the location of the thermostat jumper See illustration on page 8 The Low Temperature Thermostat has a test start r...

Page 6: ...an is running 9 Operate the air conditioner for approximately ten 10 minutes During this period no unusual noise or vibration should be evident Both the evaporator and condenser fans or blowers should be delivering air through their respective discharge ports The cool air discharged should be less than 70o F when the room temperature is between 70o F and 80o F 10 If ambient temperature is below 75...

Page 7: ...tlets is essential for optimum performance of the air conditioner All externally mounted air conditioners are fully gasketed to ensure proper sealing This seal is necessary to maintain the integrity of the closed loop system Hang air conditioner onto the enclosure Secure the air conditioner to the enclosure using the supplied hardware Use all existing mounting holes to insure stability and a tight...

Page 8: ...d are subject to change 2 06 52 3 17 4 3 2 60 66 0 2 1 1 2 4 3 J2 3 4 5 10 9 8 7 6 1 2 3 J1 CG RELAY CONTACTS N O 240 VAC 120 VAC TEMPERATURE SENSOR Mounting Holes 4 156 3 9 DIA ADJUSTING PINS 3 2 1 4 70ºF Connect 1 and 2 75ºF Connect 1 and 3 79ºF Connect 1 and 4 Thermostat Jumper ELECTRONIC THERMOSTAT CONTROL Electronic Thermostat Control Dimensions inches mm are for reference only and are subjec...

Page 9: ...OWER CORD 9 58 243 3 32 83 833 8 7 07 179 5 TYP 2 57 65 2 TYP 57 14 4 1 97 50 0 TYP 44 11 1 12 27 311 6 7 24 183 8 5 93 150 6 11 60 294 6 33 8 3 FILTER P N 7131F DRAIN 3 3 4 2 2 1 K_A6C4NPT33L Dimensions inches mm are for reference only and are subject to change GA200533A Drawings and Dimensions FILTERED CONDENSER AIR INLET Ambient Air In CONDENSER OUTLET Warm Ambient Air Out WARM AIR RETURN FROM ...

Page 10: ...or Impeller 0194 92 0194 93 Evaporator Impeller Capacitor 0452 05 0452 73 Condenser Coil 0666 32 0666 32 Evaporator Coil 0666 32 0666 32 Filter 7131F 7131F Standard Features Built in Condensate Evaporator Condenser Impeller Controller Filter High Pressure Protector Low Temperature Control Thermostat Mounts Internally or Externally NEMA 12 3R Ratings Maintained UL50 UL CUL Listed Zero ODP Refrigera...

Page 11: ...e protector threshold setting and the compressor will continue to cycle on and off Continued operation under these conditions will cause damage shorten compressor life and void the warranty CAUTION A Filter Removal and Service Remove the screw from the filter holder Remove the filter from the filter holder After removal flush filter under warm running water with the clean side up If accumulated di...

Page 12: ...g 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 EPATechnician that a refrigerant shortage does exist the leak must be repaired Then the unit may be evacuated and recharged in the field by a Certified EPA Technician only CAUTION E Reloc...

Page 13: ...Refrigerant leak Check for any obstruction of Evaporator airflow Check and seal all openings Excessive condensate Eliminate the frequency of door openings draining and loss of A C sensible cooling performance Unit overcooling Failed Thermostat Check Thermostat wire connections Evaporator Blower Condenser Replace Thermostat Blower and Compressor are running Failed Relay Replace Relay Compressor cyc...

Page 14: ...received 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 suitable container for shipment preferably the original packaging if available All Air Conditioners must be returned in an upright position properly secured to a pallet Improper packaging may void war...

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