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5

Mounting

Kooltronic Special Purpose Heat Exchangers have been engineered to be installed easily.
These units use fully gasketed flanges to insure a seal between the heat exchanger and
the cabinet.  This seal is necessary to maintain the integrity of the closed loop system as
well as the NEMA 4 rating.

Prior to mounting, refer to page 6 for general arrangement 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 of the cabinet.  To
avoid damaging your Heat Exchanger, please read the following information before
installation.

1. Remove and discard (2) nuts and washers holding the Mounting Template and

Assembly Bracket (M/TAB) to the Heat Exchanger.  Remove M/TAB.

2. See page 6 for proper orientation.  Place the M/TAB flush against the outside of the

cabinet to locate cutouts and M/TAB mounting holes.  

The minimum distance

between lower end of the M/TAB to the ground is 12” for all KNHX units.

3. The cutout for warm air return does not have to match the full opening on the

M/TAB.  You can locate your cutout anywhere within this opening, making the return
air cutout from the cabinet as large as possible.  Make the cold air supply cutout the
same size as on the M/TAB.

4. Mount the M/TAB to the outside of the cabinet using all the 1/4-20 x 1/2” bolts,

washers and nuts supplied by Kooltronic.

5. Route the power cord through the return air cutout of the cabinet.  Mount the heat

exchanger on the M/TAB by sliding the mounting studs, 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 enclosure without first
removing the heat exchanger.  Drilling through the sealing gasket may damage it
and remove the NEMA 4 rating.

8. Repeat actions, described in item “5” above.

9. Insert the stainless steel screws with seal washers supplied through holes in the

mounting flanges and the cabinet wall.  Install washers and nuts on each screw
from inside of the cabinet and hand tighten.  Tighten all nuts to a torque of 20 in.-
lbs. going in a clockwise rotation starting from the top left corner.  Retighten to a
final torque of 34-40 in.-lbs. in the same rotation as previously used.  The torque
should be rechecked after the gasket has been allowed to set for 1 hr. and again
after the heat exchanger has been run for 24 hrs.  Check the flange gasket com-
pression, after tightening all nuts - the gasket should be compressed by approx-
imately 1/2 the gasket thickness (1/8”).

10. After making sure that the source voltage and frequency are the same as shown on

the unit nameplate, connect the heat exchanger’s power cord to the power supply.

CAUTION

If the Heat Exchanger is mounted to the cabinet door you must be sure that

the door hinges will support the additional weight of the Heat Exchanger. Also

be certain that when the door is opened fully, the cabinet does not become

unbalanced. The actual weight of the unit can be found in the performance

specifications.

Содержание KNHX38 Series

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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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