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IX. 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 Heat Exchangers must
be returned in an upright position properly secured to a
pallet. 

Improper packaging may void warranty claim.

If

a Heat Exchanger 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

8

Summary of Contents for KNHX38 Series

Page 1: ...ING THIS HEAT EXCHANGER IT IS IMPORTANT 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 900 046 07 12 18 CDR 20111 Find additional information on this model at kooltronic com or use the Technical Documents QR code below Technical Documents ...

Page 2: ...c TrimLine Heat Exchangers are designed for indoor applications with ambient temperatures from 50 F to 131 F and maximum allowable enclosure temperature of 160 F These heat exchangers utilize a counterflow airstream for maximum heat transfer efficiency in a closed loop system providing cooling within sealed electronic cabinets This Manual provides you with the necessary general information for pro...

Page 3: ...er stand this Manual Before operating this unit all electrical wiring must be checked to assure the proper connections IV Product Identification and Nameplate Each Kooltronic Heat Exchanger includes an identification nameplate This nameplate provides CAUTION Operate this unit only on the proper voltages and frequencies as noted on the nameplate MODEL NO SERIAL NO MAX CABINET VOLTS FREQ PH AMPS TEM...

Page 4: ...0 00 11 Condenser Blower Capacitor 0452 06 0452 06 0452 03 Condenser Blower Blower Motor 0261 08 0261 08 0261 149 Evaporator Blower Assembly 6015 00 129 6015 00 129 604559 00 36 Evaporator Blower Capacitor 0452 06 0452 06 0452 03 Evaporator Blower Blower Motor 0261 08 0261 08 0261 149 Filter 10871F 10871F 10871F Above parts are for 115V units For 230V consult factory Technical Data KNHX38 115 3 00...

Page 5: ...tuds installed on the heat exchanger side panels into the inclined slots of the M TAB 6 Carefully mark all mounting holes from the flanges of the heat exchanger to the cabinet wall All holes in the heat exchanger flange must be used to maintain the NEMA 4 rating 7 Remove the heat exchanger from the M TAB and drill 218 dia mounting holes in the cabinet Do not attempt to drill mounting holes in the ...

Page 6: ...d air filter is usually a gradual increase of temperature within the equipment cabinet Continued operation under these conditions will cause damage shorten blower motor life and void the warranty 11 2 53 16 TYP POWER CORD FILTER M TAB 18 K 171 16 WARM AIR RETURN FROM ENCLOSURE WARM AMBIENT AIR OUTLETS COOL AIR OUTLET TO ENCLOSURE WARM AIR RETURN FROM ENCLOSURE FILTERED AMBIENT AIR INLET COOL AIR O...

Page 7: ...e tab slide the filter into the near retainer b press filter against the unit and c slide forward into far retainer CAUTION Do not operate the Heat Exchanger for extended periods of time with the filter removed The heat exchanger element may become clogged with dust or lint from the ambient environment A clogged heat exchanger element is not readily detected and will give the same reaction as clog...

Page 8: ...s 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 Heat Exchangers must be returned in an upright position properly secured to a pallet Improper packaging may void wa...

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