EIC Solutions AAC-145A-4XT Series User manual

1 -800-497-4524 EIC SOLUTIONS, INC . 215-443-5190
EIC SOLUTIONS, INC
EIC SOLUTIONS, INCEIC SOLUTIONS, INC
EIC SOLUTIONS, INC.
..
.
Thermoelectric ir conditioner installation and
operation manual
FOR 1500 Btu MODEL #’S
C-145 -4XT
C-145 -4XT-HC
C-145 -4XT-XXXXX
Cooling Solutions for
Cooling Solutions for Cooling Solutions for
Cooling Solutions for
Mission
MissionMission
Mission-
--
-Critical Electronics
Critical ElectronicsCritical Electronics
Critical Electronics

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TABLE OF CONTENTS
1. GENER L INFORM TION
1.1
PRINCIPLES OF OPER TION ......................................................................................... 3
2. INST LL TION
2.1
CHOOSING LOC TION .......................................................................... 4
2.2 ORIENT TION............................................................................................. 4
2.3
PREP RING THE ENCLOSURE ................................................................ 6
2.4
INST LLING THE IR CONDITIONER ..................................................... 7
INST LL THE DRIP P N ........................................................................... 7
PPLY POWER ............................................................................................ 7
3. OPER TION
3.1
THERMOST T SET POINTS ND HE TING COOLING UNITS .............. 8
3.2
M INTEN NCE ........................................................................................... 8
4. SPECIFIC TIONS
4.1
ST ND RD SPECIFIC TIONS ...................................................................................... 10
5. PPENDIX
.
ST ND RD CUTOUT ....................................................................................................... 11
B.
N RROW FL NGE CUTOUT ......................................................................... 11
C.
EXTENSION FR ME CUTOUT ....................................................................................... 12
EIC SOLUTIONS INC.
EIC SOLUTIONS INC.EIC SOLUTIONS INC.
EIC SOLUTIONS INC.
700 VETER NS W Y, SUITE 200
W RMINSTER, P 18974
PHONE [phone] or 1-800-497-4524
F X 215-443-9564
EM IL [e-mail]
VISIT US ON THE WEB T www.eicsolutions.com.
D-24 Rev. 04/01/2021

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1. GENERAL INFORMATION
1.1 PRINCIPLES OF OPER TION
n 1834 Jean Peltier discovered that by passing a current through two dissimilar conductors the
junction of those materials will either absorb or release heat depending on the direction of the
current flow. Thirteen years earlier Thomas eebeck had discovered that current would flow
when you placed a temperature gradient across the junction of two dissimilar metals. These
two discoveries were the basis of thermoelectrics. With the advent of modern semiconductors
thermoelectric devices became practical for real world applications and are now found in
everything from consumer goods to spacecraft.
Your EIC olutions Thermoelectric Air Conditioner operates on this principle so there is no
compressor and no expensive, ozone depleting CFC’s. EIC’s air conditioners use Thermoelectric
“modules” sandwiched between high performance aluminum heat sinks and high CFM axial fans to
“pump” the heat from the inside of your enclosure to the outside, without exposing your delicate
electronics to any outside air or contaminates. ee Figure 1.1.
EIC uses only the highest quality components in our air conditioners and you can expect
years of trouble free cooling from these solid-state devices. Every unit we sell is backed by our
one year parts and labor warranty.
FIGURE 1.1
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2. INSTALLATION
2.1 CHOOSING LOC TION ON YOUR ENCLOSURE
When choosing a mounting location for your unit, be sure to keep air flows of both the
interior and exterior heatsinks and fans in mind. Adequate clearance between the fans/heatsinks
and nearby surfaces is required for unrestricted air flows which will ensure optimal performance
and long, trouble free operation. The general rule is to allow a minimum of two inches between
the fans or heatsinks and any surface. Refer to figure 1.1 for an air flow diagram.
Other considerations in deciding on a mounting location include; allowing access to
thermostat (this will be inside the enclosure) if frequent adjustments are to be made; allowing
access to the hot side heat sinks (this will be on the outside of the enclosure) for cleaning if the
unit will be used in a harsh, dirty environment.
2.2 ORIENT TION
Your AC unit can be mounted either vertically on the front, rear or side of your enclosure or
horizontally on the top of your enclosure. ee Figure 2.1 and 2.2.
Vertically mounted 1500 Btu units are always mounted with the exposed heatsink fins facing
up and down, never left and right. (Fig. 2.1) Vertical installations often require the use of a
Condensate Drip Pan (part # DP-V) depending on a number of factors including internal enclosure
temperatures and ambient temperatures, humidity levels, quality of enclosure seals, and
frequency of enclosure opening. We strongly recommend the use of a drip pan to protect the
electronics from dripping condensate. (Fig. 2.1)
Mounting the unit horizontally on the side of an enclosure, will cause condensate to drip in
an uncontrolled manner, possibly damaging electronic equipment within the enclosure. If this
orientation is the only possible configuration, contact the Engineering Dept. at EIC for a custom
solution.
Horizontally mounted 1500 Btu units always require a factory installed drip pan (part #
P-145H) to prevent dripping condensate from damaging electronic equipment. (Fig. 2.2)
In either orientation, issues regarding access should be considered and minimum clearances
must be maintained as outlined in ection 2.1 of this manual.

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FIGURE 2.1
FIGURE 2.2
VERTICAL INSTALLATION OF 1500 BTU UNIT WITH
P-V VERTICAL RIP PAN AN RAIN TUBE
HOT IDE OF AC
(OUT IDE OF
ENCLO URE)
COLD IDE OF
AC (IN IDE OF
ENCLO URE)
DRAIN
TUBE
ENCLO URE
DP-V DRIP
PAN
HOT IDE FAN
COLD IDE FAN
HOT IDE HEAT
INK
COLD IDE
HEAT INK
COLD IDE
HEAT INK
HOT IDE HEAT
INK
HORIZONTAL INSTALLATION OF 1500 BTU UNIT WITH
INTERNALLY MOUNTE P-145H RIP PAN AN RAIN TUBE
ENCLO URE
HOT IDE OF AC (OUT IDE
OF ENCLO URE)
COLD IDE OF AC (IN IDE OF
ENCLO URE)
DRAIN
TUBE
COLD IDE FAN
HOT IDE FAN
COLD IDE
HEAT INK FIN
HOT IDE HEAT
INK
HOT IDE HEAT
INK
COLD IDE
HEAT INK FIN

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2.3 PREP RING THE ENCLOSURE
To mount the 1500 Btu unit you will need to cut an opening in your enclosure and drill
mounting holes. Cut out drawings showing the cut-out size, hole locations, and hole sizes have
been included in this manual (see Appendix). The instructions for installing the air conditioner are
printed below.
TOOL AND MATERIAL NEEDED:
•AAC-145A-4XT cut out stencil
•Center Punch
•Tape Measure and pencil
•Jigsaw or suitable alternative
•Electric drill
•# 29 drill bit (.136”) (Not used for extension frame option)
•# 8-32 tap and tap handle (Not used for extension frame option)
•.203” drill bit (Extension frame option only)
•# 8-32 x 3/8” stainless machine screws (supplied)
•Nylon washers (supplied)
•One neoprene gasket (supplied)
CUT THE OPENING AND DRILL MOUNTING HOLE IN THE ENCLO URE
1. Using the guidelines provided in the installation manual choose an appropriate location for
the air conditioner on your enclosure.
2. Tape the cut out stencil to the enclosure in the location you have chosen.
3. Before marking, cutting or drilling check that the location meets the clearance
requirements as specified in the installation manual.
4. Using a pencil, center punch or other method, mark the exact center point of each
mounting hole on the enclosure. Also mark the four corners of the section to be cut out.
5. Remove the stencil and using a pencil or other method, connect the marks you made at the
corners of the cut out, forming a rectangle.
6. Using the jigsaw, cut the opening in the enclosure.
7. Using the appropriate drill bit, drill a hole at each of the mounting hole marks you made
earlier.
8. Using the 8-32 tap, tap each of the holes you have drilled (standard frame models only).
2.4 INST LLING THE IR CONDITIONER
IN TALL THE AIR CONDITIONER
1. Lay the air conditioner down with the cold side fan (side with the thermostat) facing up.
2. Take the supplied gasket and lay it down on the flange.
3. Take one of the supplied mounting screws and, from the under side of the flange, push it up
through the top right mounting hole, and through the hole in the gasket. The gasket hole is
undersized and will hold the screw in place. Repeat this on the top left mounting hole.
4. et the AC unit in the hole you’ve cut in the enclosure, and using a screwdriver, carefully
start the two screws you attached to the gasket to the tapped holes in the enclosure. Do
not tighten these at this time.
5. Install the rest of the screws in the flange placing a nylon washer on each fastener and
screw them into the tapped holes in the enclosure. Do not tighten them completely. If you
are using a vertical drip pan, you will need to install the long screw in the center hole in the
bottom flange.

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6. Remove the two starter screws and place a nylon washer on each and reinstall.
7. Tighten all screws.
IN TALL THE DRIP PAN
1. Two hose fittings were provided with the drip pan, a right angle and a straight fitting.
Choose one and install it on the drip pan. Be sure if you use the right angle fitting it is
facing the desired direction prior to installing the drip pan.
2. There are three mounting holes in the drip pan, match these holes with the long mounting
screws protruding into the enclosure at the bottom of the AC unit. Push the drip pan onto
this screw.
3. Using the 8-32 keps nuts provided, attach the drip pan to the air conditioner.
4. Attach the supplied PVC drain tube to the hose fitting on the drip pan. This tube should be
routed to the bottom of the enclosure and fed through a 3/8” hole to the outside.
5. If you mount the unit horizontally, the drip pan is pre-installed and you will only need to
remove the existing hole plug and install the hose fitting and PVC drain hose.
APPLY POWER
Once the air conditioner is mounted, check the serial label and confirm the voltage required
and then apply appropriate power as outlined below.
Universal voltage units:
For 120 VAC power plug the supplied IEC 320-C13 to NEMA 5-15P cord into the unit. Plug the
other side into a standard 120 volt, grounded outlet. Amperage for the unit at 120 VAC is
6.0 amps.
For 220 – 240 VAC power either remove the NEMA 5-15P plug from the supplied power cord
for a non-supplied plug or use a non-supplied IEC 320-C13 cord. Amperage for the unit at
220 VAC is 4.0 amps.
DC voltage units:
This unit will have a supplied power cord. Connect the wires to an appropriate power
source using standard safe wiring methods. Wire colors are as follows:
Red - Positive
Black - Negative
If you purchased a Digital Temperature Controller with your AC unit, a separate wiring diagram
has been provided which will show the correct method of applying power to your air conditioner.
Upon applying power to the air conditioner turn the power switch to the ON position. The fan
on the cold side (inside the enclosure) will come on. The hot side fan (outside the enclosure) may
also run depending on where the thermostat is set. The cold side fan always runs when the unit is
powered on to circulate air within your enclosure thereby eliminating any “hot spots”. The hot
side fan will only run when the air conditioner is cooling.

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3. OPERATION
3.1 THERMOST T SET POINTS ND HE TING/COOLING
UNITS
ETTING THE THERMO TAT
Your EIC air conditioner is equipped with an adjustable thermostat. The set point you
choose should be based on the desired internal temperature of the enclosure in degrees
Fahrenheit. The air conditioner will run until the set point temperature is achieved within the
enclosure and then the hot side fans and the thermoelectric cooling modules will shut down. The
cold side fan will continue to run, circulating the air to maintain a uniform temperature within the
enclosure.
HEATING AND COOLING UNIT
If you purchased an HC unit (heating and cooling), the heater operation is controlled by a
fixed-point thermostat. This thermostat is set to turn the heaters on when the temperature within
the enclosure falls to approximately 45 °F and turn the heaters off when the temperature rises to
approximately 55 °F.
The cooling operation is controlled by the adjustable thermostat just as it is with a cooling
only unit. Cooling will prevent the heating function from turning on. For example, if the cooling
thermostat is set to 40 °F then the unit will cool to 40 °F, then switch directly to heating until the
cooling turns back on.
If the air conditioner is operating in an ambient environment that may drop below 45F, it is not
recommended that the cooling thermostat be set lower than 50F. etting the thermostat lower
than 50F in this environment could result in ice forming on the cold side of the unit.
3.2 M INTEN NCE
MAINTENANCE
EIC Thermoelectric Air Conditioners are virtually maintenance-free. The only time
maintenance is required is when a unit is installed in an extremely dirty environment. In these
cases, the hot side heat sinks (outside the enclosure) should be inspected regularly for a build-up
of dust or dirt. If a build-up is present on the heat sink fins, it can be easily removed as follows:
1. Disconnect the power from the unit.
2.
Dry dust/dirt can be removed using compressed air to blow out the heat sinks. Do not
direct any high-pressure air at the fans.
3. Your AAC-145A-4XT air conditioner is designed to allow for water wash down of the hot side
of the unit, which is outside of the enclosure (never the cold side which is inside the
enclosure). A pressure washer can be used to carefully clean the hot side heat sink fins
when compressed air will not provide adequate cleaning. Never direct high-pressure water
at the fans. Never direct high-pressure water at the joint formed by the mounting flange,
gasket and enclosure. Never allow the cold side of your unit to get wet
Keeping the hot side heat sink fins free from any insulating build-up of dirt or dust will ensure
long, trouble-free operation of your air conditioner.

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NEVER EXPOSE THE COL SI E OF THE AIR CON ITIONER (INSI E THE ENCLOSURE) TO WATER.
If you have any questions about any aspect of your EIC air conditioner, don’t hesitate to call us at
the numbers listed below.

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4. SPECIFICATIONS
4.1 ST ND RD SPECIFIC TIONS
Cooling Power 1700 BTU/hr.
500 W
Available Voltage 120 / 220 V
Input Voltage Range 100 - 240 V
Current 6.0 A
Heating Capability -HC Units
Only
1360 BTU/hr.
400 W
Weight 25 kg.
55 lbs.
Cold ide Airflow 95 cfm
160 m
3
/hr.
Hot ide Airflow 140 cfm
235 m
3
/hr.
ound Level at 1 meter 62 dBA
Operating Temperature Range -4 to 140 °F
-20 to 60 °C
torage Temperature Range -4 to 185 °F
-20 to 85 °C
Cooling Thermostat Accuracy ±1.0 °F
±0.6 °C

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PPENDIX and B
Enclosure cutout for
tandard Flange
models only, DO
NOT use with
Narrow Flange
models or Extension
Frame
Drawing A
Enclosure cutout
for Narrow Flange
models only, DO
NOT use with
standard models
or Extension
Frame
Drawing B
Holes to be 8-32 TAP

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PPENDIX C
Enclosure cutout for 1500 BTU air conditioner
EXTEN ION FRAME ONLY
Holes to be .203”