nvent CLIMAGUARD TX33-2848-104 User manual

© 2018 nVent 88030266
Rev. D P/N 10-1008-236
CLIMAGUARD™
Air-to-Air outdoor HeAt excHAnger
tx33-2848-104 Model
INSTRUCTION MANUAL

© 2018 nVent 88030266
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RECEIVING THE THERMOELECTRIC COOLER
Inspect the thermoelectric cooler. Check for concealed damage that may have occurred during shipment. Look
for dents, scratches, loose assemblies, etc. Damage evident upon receipt should be noted on the freight bill.
Damage should be brought to the attention of the delivering carrier within 15 days of delivery -- NOT to nVent
Equipment Protection. Save the carton and packing material and request an inspection. Then le a claim with the
delivering carrier.
nVent Equipment Protection cannot accept responsibility for freight damages; however, we will assist you in any
way possible.
HANDLING & TESTING THE THERMOELECTRIC COOLER
TEST FOR FUNCTIONALITY BEFORE MOUNTING THE HEAT EXCHANGER TO THE ENCLOSURE.
Refer to nameplate for proper electrical current requirements, and then connect the power cord to a properly
grounded power supply. Minimum circuit ampacity should be at least 125% of the amperage shown in the
design data section for the appropriate model. No other equipment should be connected to this circuit to prevent
overloading.
Operate the heat exchanger for several minutes. No excessive noise or vibration should be evident during this
run period. Ambient air mover may not be energized at temperatures low enough to not require cooling. On DC
powered units air movers may not always be running at full speed.
TABLE OF CONTENTS
RECEIVING THE THERMOELECTRIC COOLER .............................................................................................................................. 2
HANDLING & TESTING THE THERMOELECTRIC COOLER .......................................................................................................... 2
INSTALLATION INSTRUCTIONS..................................................................................................................................................... 3
PRINCIPLES OF OPERATION .......................................................................................................................................................... 3
MAINTENANCE................................................................................................................................................................................ 3
Air Movers ............................................................................................................................................................................................... 3
Ambient Air In/Out Screens................................................................................................................................................................... 3
TECHNICAL INFORMATION............................................................................................................................................................ 4
Design Data..................................................................................................................................................................................................... 4
Dimensional Drawings ................................................................................................................................................................................... 4
Mounting Cutout............................................................................................................................................................................................. 5
Components List ............................................................................................................................................................................................ 5
Wiring Diagram ............................................................................................................................................................................................... 6
TROUBLE SHOOTING - DC Units .................................................................................................................................................... 7
WARRANTY ...................................................................................................................................................................................... 8
HOLD HARMLESS............................................................................................................................................................................ 9

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INSTALLATION INSTRUCTIONS
1. Inspect heat exchanger. Verify functionality before mounting the heat exchanger, see HANDLING &
TESTING THE THERMOELECTRIC COOLER on page 2.
2. Using the cutout dimensions shown in this manual, prepare the enclosure opening for surface
mounting.
3. Using the gasket kit provided, install gaskets to heat exchanger.
4. Mount heat exchanger on enclosure using mounting screws provided. Torque screws to 25 in-lbs
(2.82 Nm).
5. Refer to unit nameplate for electrical requirements. Connect the power cord to a properly
grounded power supply. Use of an extension cord is not recommended. Electrical circuit should be
fused with slow blow or HACR circuit breaker.
PRINCIPLES OF OPERATION
Operating the heat exchanger below the minimum ambient temperature or above the maximum ambient
temperatures indicated on the nameplate voids all warranties.
It is recommended that the warranty section of this manual be read in order to familiarize youself with
parameters of restricted operation.
External alarm loop is Normally Open during normal operation of the heat exchanger. On Fault, internal LEDs will
turn RED and external alarm loop will close.
MAINTENANCE
AIR MOVERS
Air mover motors require no maintenance. All bearings are lubricated during manufacturing for the life of
the motor.
If the ambient air mover should fail, it is not necessary to remove the heat exchanger from the cabinet
or enclosure to replace it. The ambient air mover is mounted on a bulkhead and is easily accessible by
removing the front cover.
Caution! Operation of the heat exchanger in areas containing airborne caustics or chemicals can
rapidly deteriorate aluminum cores and air movers. Contact nVent Equipment Protection for special
recommendations.
AMBIENT AIR IN/OUT SCREENS
In dirty environments the bug screens on the front cover may need to be cleaned periodically to maintain
adequate cooling performance. The front cover should be removed from the heat exchanger and set
aside for cleaning with water, air or scrubbed clean with a brush.

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TECHNICAL INFORMATION
DESIGN DATA
Model Voltage Full Load Amps Maximum Temperature
(°C/°F)
Minimum
Temperature
(°C/°F)
Shipping Weight
lb./Kg
TX33-2848-104 48VDC 1.8 65/149 -40/-40 45/20.4
DIMENSIONAL DRAWINGS

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MOUNTING CUTOUT
External Mounting
CUTOUT INSTRUCTIONS
(As viewed from outside of enclosure)
NOTE: Dashed lines represent air conditioner.
COMPONENTS LIST
Part Description Part Number
Air Movers 10-1091-55
Controller E117E004
Service Cord / Harness 09-3001-106

© 2018 nVent 88030266
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WIRING DIAGRAM

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TROUBLE SHOOTING - DC UNITS
1. Check manufacturer’s nameplate located on the unit for correct power supply.
2. Unit blows fuses or breakers.
• Under sized fuse/breaker or not time delayed
• Short in system
Repair or Replace
defective part
3. Turn on power to the unit.
4. Press the Quick-Test button (located above the LED’s on the enclosure side of the unit). The unit
will cycle through a series of self-diagnostic tests to verify proper operation of components.
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5. Do all LED’s clear to GREEN following the self test? RED indicates a fault.
YES, unit is working properly.
NO, possible problem:
Note the Composite Alarm LED will also light if any other alarm activates.
RED Alarm LED Possible Cause Solution
Ambient air mover
OR
Enclosure air mover
• Open motor winding
• Stuck air mover
motor
• Obstructed blades
Repair or Replace
defective part
Hi / Lo Temp • If the enclosure temperature is outside the nameplate
temperature range, the Hi / Lo Temp alarm will activate.
Composite Alarm Only • Controller Temperature Sensor Failure Repair or Replace
defective part
For additional technical support, contact nVent Equipment Protection at 800-896-2665.

© 2018 nVent 88030266
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WARRANTY
Please note: Warranty effective at time of shipment. nVent Equipment Protection warrants that all
material and workmanship are free of defects in quality which impair the usefulness of the thermoelectric
cooler or heat exchanger for a period of ve (5) years for nonoperating parts, except for the lter; and for
one (1) year for everything else when installed and operated under the following conditions:
A. Maximum voltage variation no greater than plus or minus 10% of nameplate nominal rating.
B. Maximum frequency variation no greater than plus or minus 3 Hz. of nameplate nominal rating.
C. Must not exceed minimum and maximum stated temperatures on the nameplate.
D. Not to exceed (BTU/Hr.) rating, including any heat sink, as indicated on the nameplate.
E. The unit must not be restarted for a period of one (1) minute after intentional or accidental shut-off.
(This does not apply to heat exchanger or lter fan.)
nVent Equipment Protection warrants that all material and workmanship are free of defects in quality
which impair the usefulness of the lter fan package and all custom thermoelectric coolers and heat
exchangers for a period of one (1) year, except for the lter, when installed and operated under conditions
A, B, C and D as listed above.
Not covered in this warranty is damage to the thermoelectric cooler or heat exchanger due to the
introduction of other than the nameplate-designated refrigerant. Operation of any nVent Equipment
Protection product that has not been designed with proper protective coatings and/or options and is in an
abnormal or corrosive environment voids the warranty. Prolonged operation with dirty lters also voids the
warranty.
Should any part prove defective within the above warranty period, the customer may choose to return
the defective product that is under warranty to nVent Equipment Protection for repair at no charge or
the customer has the option to repair the defective products at his own expense and nVent Equipment
Protection will supply repair parts at no charge providing the defective part is returned and found to
have failed under warranty. Parts supplied as warranty replacement parts will assume the balance of the
warranty on the part returned for warranty consideration.
Please be advised: According to the Federal Register, no person maintaining, servicing, repairing, or
disposing of appliances may knowingly vent or otherwise release into the environment any class I or class
II substance used as refrigerant.
nVent Equipment Protection assumes no liability beyond the repair or replacement of its own product.
Customer modication of any nVent Equipment Protection product voids this warranty.
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.
THIS EXPRESS WARRANTY CONSTITUTES THE ENTIRE WARRANTY WITH RESPECT TO THE
PRODUCT AND IS IN LIEU OF ALL OTHERS, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY
OR MERCHANTABILITY AND WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE AND IN NO
EVENT IS NVENT EQUIPMENT PROTECTION RESPONSIBLE FOR ANY CONSEQUENTIAL DAMAGES
OF ANY NATURE WHATSOEVER.

© 2018 nVent
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HOLD HARMLESS
In consideration of purchase of equipment from nVent Equipment Protection by a customer, nVent
Equipment Protection agrees to indemnify and hold harmless such customer and users with a defense,
as to any claim, demand, statutory court cost, fees for attorney’s services provided for below, and/
or judgment, for actual of alleged patent infringement in any country, arising out of the use, sale or
advertisement of any equipment manufactured or sold by nVent Equipment Protection to nVent
Equipment Protection’s own specications, provided that the customer or user shall promptly notify nVent
Equipment Protection in writing of any such claim or demand, provided further that nVent Equipment
Protection shall have the right and option to undertake and control the entire defense of such claim,
or demand instituted against the customer or user, but limited to the products made or sold by nVent
Equipment Protection, through counsel selected by nVent Equipment Protection, and to settle and pay
any claim award arising out of such claim or demand, and provided further that the customer or user
will provide such information and assistance as nVent Equipment Protection may request subject to
reimbursement by nVent Equipment Protection for any out-of pocket expense incurred in providing such
requested assistance. Liability of nVent Equipment Protection for any infringement or claim thereof shall
be limited to the above undertaking.

© 2018 nVent 88030266
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NOTES

© 2018 nVent
88030266 - 11 -
NOTES

© 2018 nVent 88030266
Rev. D P/N 10-1008-236
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