EIC Solutions AAC-141-4XT-EP 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 800 Btu MODEL #’S
C-141-4XT-EP
C-141-4XT-EP-HC
C-141-4XT-NF-EP
C-141-4XT-EP-NF-HC
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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This manual is intended for models AAC-141-4XT-EP, AAC-141-4XT-HC-EP, AAC-141-4XT-NF-EP, and
AAC-141-4XT-HC-NF-EP only.
For use in: Class , Division 2, Groups A – D Hazardous Locations
Operating temperature code: T4
Ambient temperature range: -20 to 60°C
Voltage: 120V or 220V AC
These thermoelectric air conditioning units are to be mounted half outside and half inside a
cabinet. The outside of the cabinet may be in outdoor atmosphere. There is a barrier in the middle
of the unit separating inside and outside sections. The unit is intended to be permanently
connected.
The unit meets the following standards:
ANS / SA-12.12.01-2012 Nonincendive Electrical Equipment for Use in Class and , Division 2
and Class , Division 1 and 2 Hazardous (Classified) Locations, Dated 07/09/2012.
UL 823- ssue:2006/10/20 Ed:9 Rev:2012/01/31 UL Standard for Safety Electric Heaters for Use
in Hazardous (Classified) Locations.
UL1995 Standard for Safety Heating and Cooling Equipment, 4th edition, October 14, 2011

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TABLE OF CONTENTS
1. GENER L INFORM TION
1.1
PRINCIPLES OF OPER TION ......................................................................................... 4
2. INST LL TION
2.1
CHOOSING LOC TION .......................................................................... 5
2.2 ORIENT TION............................................................................................. 5
2.3
PREP RING THE ENCLOSURE ................................................................ 7
2.4
INST LLING THE IR CONDITIONER ..................................................... 7
INST LL THE DRIP P N ........................................................................... 9
PPLY POWER ............................................................................................ 9
3. OPER TION
3.1
THERMOST T SET POINTS ND HE TING COOLING UNITS ........... 10
3.2
M INTEN NCE ........................................................................................ 10
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-18 Rev. B 11/04/2013

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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 Seebeck 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 E C Solutions Thermoelectric Air Conditioner operates on this principle so there is no
compressor and no expensive, ozone depleting CFC’s. E C’s air conditioners use Thermoelectric
“modules” sandwiched between high performance aluminum heat sinks, high CFM axial fans, and a
patented electronic design to “pump” the heat from the inside of your enclosure to the outside,
without exposing your delicate electronics to any outside air or contaminates. See Figure 1.1.
E C 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.
AMB ENT A R
REMOVES HEAT
FROM HOT S DE
HEAT S NKS
COLD A R
C RCULATED
W TH N THE
ENCLOSURE
HOT
S DE
HEAT
S NKS
COLD
S DE
HEAT
S NKS
FAN FAN
F GURE 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.
See Figure 2.1.
Vertically mounted 800 Btu units are always mounted with the exposed heatsink fins at the
bottom and the fans at the top. (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 with the fins pointing to either side or straight up will cause condensate
to drip in an uncontrolled manner, possibly damaging electronic equipment within the enclosure.
f one of these orientations is the only possible configuration, contact the Engineering Dept. at E C
for a custom solution.
Issues regarding access should be considered and minimum clearances must be maintained
as outlined in Section 2.1 of this manual.

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F GURE 2.1

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2.3 PREP RING THE ENCLOSURE
To mount the 800 Btu unit you will need to cut an opening in your enclosure and drill
mounting holes. A cut-out drawing (Figure 2.2) showing the cut-out size and hole locations has
been included in this manual. The instructions for installing the air conditioner are printed below.
TOOLS AND MATER ALS NEEDED:
•Pencil
•Scissors
•Tape Measure
•Jigsaw or suitable alternative
•Electric drill
•# 29 drill bit (.136”)
•# 8-32 tap and tap handle
•Sixteen # 8-32 x 3/8” stainless machine screws (supplied)
•Sixteen nylon washers (supplied)
•One neoprene gasket (supplied)
CUT THE OPEN NG AND DR LL MOUNT NG HOLES N THE ENCLOSURE
1. Using the guidelines provided in the installation manual choose an appropriate location for
the air conditioner on your enclosure.
2. Layout the cut-out and hole pattern for the AC on the enclosure. Refer to Figure 2.2A for
standard flange only. Standard flange air conditioners do not contain NF in the part
number, and the mounting flange measures 13” x 13”. Refer to figure 2.2B for narrow
flange models only. Air conditioners that are narrow flange units contain NF in the part
number, and the mounting flange measures 13” x 12”.
3. Before 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. Using the jigsaw, cut the opening in the enclosure.
6. Using the # 29 drill bit, drill a hole at each of the marks you made earlier.
7. Using the 8-32 tap, tap each of the holes you have drilled.
2.4 INST LLING THE IR CONDITIONER
NSTALL THE A R COND T ONER
1. Lay the air conditioner down 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. Set the AC unit in the hole you’ve cut in the enclosure, and using a screwdriver, carefully
secure the two screws you attached to the gasket to the tapped holes in the enclosure. Do
not tighten these at this time.
5. nstall 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. f you have purchased a vertical drip
pan, you will need to install the three long screws in the three center holes in the bottom
flange.
6. Remove the two started screws and place a nylon washer on each and reinstall.
7. Tighten all screws.

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Figure 2.2
B
Narrow Flange models
only, DO NOT use with
standard models
Figure 2.2
A
Standard Flange models
only, DO NOT use with
Narrow Flange models

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NSTALL THE DR P PAN
1. Two hose fittings were provided with the drip pan, a right angle and a straight one. 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 with the long mounting screws
protruding into the enclosure at the bottom of the AC unit. Push the drip pan onto these
screws.
3. Using the three 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.
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.
The unit is intended to be permanently connected. Attach the wires to an appropriate
power source using standard safe wiring methods. Wire colors are as follows:
Black or Brown – line
White or Blue – line/neutral
Green or Green/Yellow – ground
A wiring diagram is shown in Fig. 2.3. Amperage for a 120 VAC unit is 3.5 amps;
amperage for a 220 VAC unit is 2.5 amps.
Figure 2.3
Upon applying power to the air conditioner the fan on the cold side (inside the enclosure) will
come on. The hot side fans (outside the enclosure) may also run depending on where the
thermostat is set. The cold side fan always runs to circulate air within your enclosure thereby
eliminating any “hot spots”. The hot side fans will only run when the air conditioner is cooling –
they are “pumping” the heat from the inside of your enclosure to the outside air.

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3. OPERATION
3.1 THERMOST T SET POINTS ND HE TING/COOLING UNITS
SETT NG THE THERMOSTAT
Your E C air conditioner is equipped with an adjustable thermostat. The set point you
choose should be based on the desired internal temperature of the enclosure. 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.
HEAT NG AND COOL NG UN TS
f 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. To avoid having the
heating and cooling on at the same time, do not set the cooling thermostat below 70° F.
3.2 M INTEN NCE
MA NTENANCE
E C Thermoelectric Air Conditioners are virtually maintenance-free. The only time
maintenance is required is when a unit is installed in an extremely dirty environment. n these
cases, the hot side heat sinks (outside the enclosure) should be inspected regularly for a build-up
of dust or dirt. f 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-141-4XT air conditioner is rated NEMA 4X and 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. Never direct high-pressure water at the fans or the joint formed by the
mounting flange, gasket and enclosure. Never allow the cold side of your unit to get wet.
Always check your serial label before proceeding with a water wash down.
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.
NEVER EXP SE THE C LD SIDE F ANY AIR C NDITI NER (INSIDE THE ENCL SURE) T
WATER.
f you have any questions about any aspect of your E C air conditioner, don’t hesitate to call us at
the numbers listed below.