ACS ICE CFA3240A User manual

ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
Chapter 1 Description................................. 5
Chapter 2 Installation............................... 12
Chapter 3 Start-Up ................................... 22
Chapter 4 Troubleshooting ....................... 23
Chapter 5 Maintenance............................. 26
Chapter 6 Warranty .................................. 27
Chapter 7 Start-Up Checklist.................... 28
Appendix A Fresh Air Damper Installation.. 32
Appendix B Reverse Flow w/Economizer
Exhaust Hood Installation ....... 34
Appendix C Optional Condenser Filter
Installation............................... 35
Appendix D DPC200 Differential Pressure
Controller ................................. 36
Installation & Operation Manual
Vertical Air Conditioners
Manufactured By:
Industrial Climate Engineering™, An AirX Climate Solutions Brand
P.O. Box 5104 • Cordele, Georgia 31010
2002 Hoover St. • Cordele, Georgia 31015
[phone] • Fax [phone]
E-mail: [email protected] • Internet: www.acice.com
The most current version of this manual can be found at www.acice.com.
CFA3240A w/Economizer
CFA3240A/3300A/3360A

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ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
How To Use This Manual
This manual is intended to be a guide to Industrial Climate Engineering's line of vertical air conditioners. It contains
installation, troubleshooting, maintenance, warranty, and application information. The information contained in this
manual is to be used by the installer as a guide only. This manual does not supersede or circumvent any applicable
national or local codes.
If you are installing the air conditioner rst read Chapter 1 and scan the entire manual before beginning the installation as
described in Chapter 2. Chapter 1 contains general, descriptive information and provides an overview which can speed
up the installation process and simplify troubleshooting.
If a malfunction occurs, follow this troubleshooting sequence:
1. Make sure you understand how the air conditioner works (Chapters 1 & 3).
2. Identify and correct installation errors (Chapter 2).
3. Refer to the troubleshooting information in Chapter 4.
If you are still unable to correct the problem, contact the Factory at 1-229-273-9558 for additional assistance.
Please read the following “Important Safety Precautions” before beginning any work.
Important Safety Precautions
1. USE CARE when LIFTING or TRANSPORTING equipment.
2. TRANSPORT the UNIT UPRIGHT. Laying it down on its side may cause oil to leave the compressor and breakage
or damage to other components.
3. TURN ELECTRICAL POWER OFF AT THE breaker or fuse box BEFORE installing or working on the equipment.
LINE VOLTAGES ARE HAZARDOUS or LETHAL.
4. OBSERVE and COMPLY with ALL applicable PLUMBING, ELECTRICAL, and BUILDING CODES and ordi-
nances.
5. SERVICE may be performed ONLY by QUALIFIED and EXPERIENCED PERSONS.
* Wear safety goggles when servicing the refrigeration circuit
* Beware of hot surfaces on refrigerant circuit components
* Beware of sharp edges on sheet metal components
* Use care when recovering or adding refrigerant
6. Use COMMON SENSE - BE SAFETY-CONSCIOUS
This is the safety alert symbol . When you see this symbol on the air conditioning unit and in the instruction
manuals be alert to the potential for personal injury. Understand the signal word DANGER, WARNING and
CAUTION. These words are used to identify levels of the seriousness of the hazard.
DANGER Failure to comply will result in death or severe personal injury and/or property damage.
WARNING Failure to comply could result in death or severe personal injury and/or property damage.
CAUTION Failure to comply could result in minor personal injury and/or property damage.
IMPORTANT Used to point out helpful info that will result in improved installation, reliability or operation.
© 10/2023 Industrial Climate Engineering™, An AirX Climate Solutions Brand
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.

3ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
WARNING
• If the information in these instructions are not followed exactly, a re may result
causing property damage, personal injury or loss of life.
• Read all instructions carefully prior to beginning the installation. Do not begin
installation if you do not understand any of the instructions.
• Improper installation, adjustment, alteration, service or maintenance can cause
property damage, personal injury or loss of life.
• Installation and service must be performed by a qualied installer or service agency in
accordance with these instructions and in compliance with all codes and requirements
of authorities having jurisdiction.
INSTALLER: Afx the instructions on the inside of the building adjacent to the
thermostat.
END USER: Retain these instructions for future reference.
Table of Contents
Chapter 1 Air Conditioner Description & Specications
1.1 General Description .................................................................................................................................5
1.2 Model Identication .................................................................................................................................6
1.3 Serial Number Date Code ........................................................................................................................6
1.4 Air Flow, Weights and Filter Sizes...........................................................................................................6
1.5 General Operation ....................................................................................................................................7
1.6 Optional Controls and Packages ..............................................................................................................9
1.7 Electrical Operation .................................................................................................................................9
Chapter 2 Installation
2.1 Equipment Inspection.............................................................................................................................12
2.2 Installation Requirements.......................................................................................................................12
2.3 Installation Materials ............................................................................................................................13
2.4 Porting and Duct Work ..........................................................................................................................15
2.5 Top Flange Installation ..........................................................................................................................15
2.6 Installing the Lifting Brackets................................................................................................................16
2.7 Mounting the Unit .................................................................................................................................16
2.8 Compressor Chocks Removal ................................................................................................................17
2.9 Unit Support Recommendations ............................................................................................................18
2.10 Electrical Connections ...........................................................................................................................18
Chapter 3 Start-Up
3.1 Check-Out of Cooling Cycle .................................................................................................................22
3.2 Check-Out of Heating Cycle..................................................................................................................22

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Table of Contents
Chapter 4 Troubleshooting
4.1 Overview ................................................................................................................................................23
4.2 Failure Symptoms Guide........................................................................................................................24
4.3 Compressor Troubleshooting .................................................................................................................24
4.4 Control Board Diagnosis........................................................................................................................25
Chapter 5 Maintenance
5.1 Scheduled Maintenance .........................................................................................................................26
Chapter 6 Warranty
6.1 Limited Product Warranty ......................................................................................................................27
Chapter 7 Start-Up Check List
7.1 Start-Up Check List................................................................................................................................28
Appendix A
Fresh Air Damper Installation..........................................................................................................................32
Appendix B
CFA3240A Reverse Flow w/Economizer Exhaust Hood Installation .............................................................34
Appendix C
Optional Condenser Filter Installation.............................................................................................................35
Appendix D
DPC200 Differential Pressure Controller ........................................................................................................36
Illustrations
Figure 1a. Typical Electrical Schematics for Single Compressor Units .................................................... 10
Figure 1b. Typical Electrical Schematics for Dual Compressor Units....................................................... 11
Figure 2. Top Flange and Lifting Bracket Installation ............................................................................. 16
Figure 3. Wall Mounting Detail................................................................................................................ 17
Figure 4. Compressor Chock Removal..................................................................................................... 17
Figure 5a. Unit Compression Support Examples ....................................................................................... 18
Figure 5b. Unit Tension Support Examples................................................................................................ 18
Tables
Table 1 Cooling Performance and Air Flow ............................................................................................ 7
Table 2 Filter Sizes/Part Numbers ........................................................................................................... 7
Table 3 Shipping Weights & Dimensions................................................................................................ 7
Table 4 Refrigerant Charge...................................................................................................................... 7
Table 5 Minimum Clearances ................................................................................................................ 13
Table 6 Voltage Limitations................................................................................................................... 13

5ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
Chapter 1 Description & Specications
1.1 General Description
Industrial Climate Engineering's (ICE) "CFA" Environmental Control Units are a series of vertical
wall-mounted air conditioning systems that provide heating, cooling, and ventilation for electronic
equipment shelters, process control centers, E-Houses, and other applications with high internal heat
gains. The series includes multiple sizes and nominal cooling capacities from 240,000 to 360,000
BTUH. Resistance heating elements are available in various wattages.
Industrial Climate Engineering models feature an exclusive electronic control board.
The control board consolidates several electrical components, improves the air conditioner’s reliability
and has LED’s to indicate operating status and fault conditions to assist the service technician. A complete
description of functions of the control board is in Section 1.6
Other standard components include:
• Hot gas by-pass valve provides for closer temperature control in mechanical cooling and protects
against coil freeze-upduring low load conditions.
• Thermal expansion valve to improve both efciency and capacity over a wide range of ambient
temperatures
• Phase monitor to prevent operation if the unit is not properly phased and high/low voltage
ICE CFA units are designed for easy installation and service. Major components are accessible for
service beneath external panels.
All units have internal disconnects. Depending upon state and local code requirements, this feature
may eliminate the need for an external breaker or disconnect.

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ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
1.2 Model Identication
The model identication number is found on the data sticker. Rating plate located on side panel.
Example C F A 3 1 8 0 A D 0 5 0 D R H + + 1 C A + A 2 1 + + + + + +
Position 1234567891011 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
1Unit Designation/Family C = Industrial Climate Engineering (ICE)
2Energy Efciency Ratio (EER) F= EER <9
3Refrigerant Type A= R-410a
4Compressor Type/Quantity 3= Dual
5Unit Capacity/Nominal
Cooling (BTUH)
240 = 240,000
300 = 300,000
360 = 360,000
6
7
8System Type A= Air Conditioner
9Power Supply
(Volts-Hz-Phase)
A= 208/230-60-1 E= 380-50-3 (4 Wire)
C= 208/230-60-3 M= 400-60-30
D= 460-60-3 Z= 575-60-3
10 Heat Designation
@ Rated Voltage
KW = Kilowatt
000 = No Heat 150 = 15KW
050 = 5KW 180 = 18KW
090 = 9KW
11
12
13 Ventilation
Conguration
A= Solid Front Door
C = Economizer
D = Motorized Damper w/Pressure Relief
E = Motorized Damper w/Pressure
Relief & Independent Motorized
Damper Control
F = No Free Cooling, 100% Emergency
Ventilation Only w/Independent Control
14 Dehumidication
R = Electric Reheat
T = Electric Reheat w/Humidity Control
+= None
15 Controls
F = PLC w/Summed Alarms
G = PLC w/Summed Alarms & Factory
Installed T-Stat
H= PLC
J = PLC w/Factory Installed T-Stat
2 = PLC w/2-Stage Controller Activated
+= None
$ = Special
16 Operating Condition
A = Evaporator Freeze Sensor (EFS)
C = EFS w/Hot Gas Bypass
M = Extreme Duty w/Hard Start & EFS
N= Hard Start
P = Hard Start w/Low Ambient & CCH
Q = Hard Start w/Low Ambient &
Fan Cycle Control (FCC)
R = Crank Case Heater (CCH)
T = Hard Start w/EFS
U = Hard Start w/Hot Gas Bypass
V = Hard Start w/Low Ambient &
CCH & EFS
W = Low Ambient w/CCH
X = Hot Gas Bypass
Y = Low Ambient w/CCH & FCC
Z = Low Ambient w/CCH & EFS
1 = Low Ambient w/FCC
2 = Low Ambient w/FCC & EFS
3 = CCH w/Hot Gas Bypass
+= None
Note: Not all options are available with all congurations.
Contact your ICE sales representative for conguration
details and feature compatibility.
17 Indoor Air Quality
Features
A = UV Light
D = Dry Bulb Sensor
E = Dry Bulb Sensor w/Dirty Filter
G = Dirty Filter Sensor
K = Bi-Polar Ionization
+= None
18 Air Flow 1 = Top Supply/Bottom Return
19 Compressor
Location C= Center
20 Filter Option
A = 2” Pleated (MERV 8, AC/HP-C)
C = 2” Charcoal
D = MERV 11 High Filtration Package
E = MERV 13 High Filtration Package
F = Filter Access Through Return Air Opening
G= F + C
H= F + D
J= F + E
K= F + W
W = Aluminum Washable
+= None
21 Corrosion
Protection
A = Condenser Coil Only
C = Evaporator Coil Only
D = Both Coils Condenser & Evaporator
E = All Coils Cond/Evap/Reheat
F= Coat All
K = Coastal Package
+= None
$ = Special
22 Engineering
Revision Level
B2
C2
23
24 Cabinet Color
1 = Marvair Beige
2 = Gray
3 = Carlsbad Canyon
4 = White
5 = Stainless Steel Exterior
9 = Pebble Gray
A= Stainless Steel - Unit
$ = Custom Color (Powder Coat)
25 Sound Attenuation 2 = Compressor Blanket
+= None
26 Security Option
A = Lockable Access Plate/Tamper Proof
B = Lockable Latch/Hinge
+= None
27 Fastener/Drain Pan
Option
A= Stainless Steel Fasteners
C= Stainless Steel Drain Pan
D= Stainless Steel Fasteners & Drain Pan
+= None
28 Special Variation
+= None
$ = Special Conguration Not Covered by
Model Nomenclature
29 Unused += None
$ = Special
30 Unused += None
$ = Special
1.3 Serial Number Date Code
20 = 2020 01 = January 05 = May 09 = September
21 = 2021 02 = February 06 = June 10= October
22 = 2022 03= March 07 = July 11 = November
23 = 2023 04 = April 08 = August 12 = December
1.4 Weights and Filter Sizes
Electrical and performance specications and dimensional drawings are in the Product Data Sheet.
Note: Follow local codes and standards when designing duct runs to deliver the required airow.
Minimize noise and excessive pressure drops caused by duct aspect ratio changes, bends, dampers and
outlet grilles in duct runs.

7ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
Model Number CFA3240 CFA3300 CFA3360
Cooling BTUH1216,600 300,000 330,000
Rated Air Flow (CFM2)7,400 11,900 10,200
ESP3@ Rated Conditions 0.40 0.45 0.55
1Cooling rated at 95°F (35°C) outdoor and 80°F DB/67° WB (26.5°C DB/19.5°C WB) return air
2CFM=Cubic Feet per Minute 3ESP=External Static Pressure
Ratings are with no outside air. Performance will be affected by altitude.
Ratings are at 230 volts for 208/230 volt units (“C” models), 460 volts for “D” models, 380 volts for “E”
models, 575 volts for “Z” models. Derate performance by 17% for ACE (380v. 3ø, 50 Hz) models
Operation of units at a different voltage from that of the rating point will affect performance and air ow.
Table 1. Cooling Performance and Air Flow Ratings
MODEL Description INCHES MILLIMETERS PART # # OF
FILTERS
MERV
RATING
CFA3180/3240 Exterior Access Return Air Filter 25 x 16 x 2 635 x 406 x 51 80137 4 8
CFA3180/3240 Interior Access Return Air Filter 24 x 18 x 2 610 x 457 x 51 81257 4 8
CFA3240 w/Economizer Fresh Air Hood Pre-lters 26 x 12 x 1 660 x 305 x 25 92526 2 N/A
CFA33240 Reverse Flow
w/Economizer Fresh Air Hood Pre-lters 16 x 32 x 1 406 x 813 x 25 93187 3 N/A
CFA3300/3360 Exterior Access Return Air Filter 30 x 30 x 2 762 x 762 x 51 80156 4 8
CFA3300/3360 Interior Access Return Air Filter 24 x 18 x 2 610 x 457 x 51 81257 4 8
Table 2. Filter Sizes/Part Numbers
MODEL Unit Weight Shipping
Weight
Shipping Dimensions
Height Width Depth
LBS KG LBS KG Inches MM Inches MM Inches MM
CFA3240 2,523 1,144 2,636 1,196 98 2,489 76 1,930 51 1,295
CFA3300 2,625 1,193 2,750 1,250 108 2,743 72 1,829 72 1,829
CFA3360 3,210 1,456 3,335 1,513 108 2,743 72 1,829 72 1,829
Table 3. Shipping Weights & Dimensions
Model CFA3240 CFA3300 CFA3360
Refrigerant Charge (Oz) 264.5143214161
1Per circuit on dual compressor models
Table 4. Refrigerant Charge (R410A, Ounces)
1.5 General Operation
Hot Gas By-Pass
Standard on all models except the, Hot Gas By-Pass is normally used in specialty applications (i.e
Magnetic Resonance Imaging (MRI) buildings) to prevent magnetic voltage disturbance caused by
cycling. This technology is applied in this product to extend the operation envelope for the compressor
to 20º F (-6.6ºC). Combined with a condenser low ambient Fan Cycle feature, compressor operation can
be extended to 0º F (-17.8ºC). During Hot Gas operation mode, system performance will be reduced. If
product operation is in mild outdoor ambient conditions, the installed shut-off ball valve may be closed,
thus disabling the Hot Gas By-Pass feature.
Refrigerant Cycle (Cooling Mode)
The air conditioners use R-410A refrigerant in a conventional vapor-compression refrigeration cycle to
transfer heat from air in an enclosed space to the outside. A motorized impeller assembly blows indoor
air across the evaporator. Cold liquid refrigerant passing through the evaporator is boiled into gas by
heat removed from the air. The warmed refrigerant gas enters the compressor where its temperature and
pressure are increased. The hot refrigerant gas condenses to liquid as heat is transferred to outdoor air

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ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
drawn across the condenser by the condenser fan. Liquid refrigerant is metered with a thermal expansion
valve (TXV) into the evaporator to repeat the cycle.
Economizer
The factory installed economizer saves energy and reduces the run time on the compressor and
condenser fan motor by using outside air – when suitable – to cool the shelter.
Note: The economizer option is currently available on the 1120,1150, 3180, 3240, 3300 and 3360.
On a signal from the wall mounted indoor thermostat that cooling is required, either mechanical
cooling with the compressor or free cooling with the economizer is provided. A factory installed
enthalpy controller determines whether the outside air is sufficiently cool and dry to be used for
cooling. If suitable, the compressor is locked out and the economizer damper opens to bring in
outside air through fresh air hoods located on each side of the air conditioner. The outside air is
filtered with filters in each of the outside air hoods. Integral pressure relief allows the interior air to
exit the shelter, permitting outside air to enter the shelter. The temperature at which the economizer
opens is adjustable from 63°F (17°C) at 50% Relative Humidity to 73°F (23°C) at 50% Relative
Humidity.
After the enthalpy control has activated and outside air is being brought into the building, the mixed
air sensor measures the temperature of the air entering the indoor blower and then modulates the
economizer damper to mix the right proportion of cool outside air with warm indoor air to maintain
50°-63°F (10° - 17°C) air being delivered to the building. This prevents shocking the electronic
components with cold outside air.
The compressor is not permitted to operate when the economizer is functioning.
If the outside air becomes too hot or humid, the economizer damper closes completely, or to a field
selectable minimum open position, and mechanical cooling is activated.
Fresh air hoods with prefilters are field installed on each side of the air conditioner.
CFA(Dual Compressor) Units: The CFA is factory wired for maximum cooling utilizing both compressors.
If 2 stage compressor operation is desired, the factory installed jumper between terminals 1 and 2 of the
low voltage terminal strip must be removed. The 1st stage cooling input is terminal 1 of the low voltage
terminal strip and the 2nd stage cooling input is terminal 2 of the low voltage terminal strip. The thermostat
must be programmed for 2 stage cooling operation when 2 stage compressor operation is desired.
Heating Mode
A wall-mounted thermostat controls the heating cycle of models which incorporate resistance heating
elements. On a call for heat, the thermostat closes the heat relay to energize the indoor fan and the
resistance elements.
1.6 Optional Controls & Packages
Protective Coating Packages
Coated Coils: Either the condenser or evaporator coil can be coated. For harsh conditions, e.g.,

9ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
power plants, paper mills or sites were the unit will be exposed to salt water, the coils should be
coated. Note: Cooling capacity may be reduced by up to 5% on units with coated coils.
Coastal Environmental Package: This package includes:
• Corrosion resistant fasteners,
• Sealed or partially sealed condenser fan motor,
• Coating applied to all exposed internal copper and metal in the in the condenser section, and
• A protective coating on the condenser coil.
All Coat Package: Includes the same features as the Coastal Environmental Package and adds a
coating on the evaporator coil and on all exterior and interior components and sheet metal. (Note:
the insulated internal sheet metal and the internal control box are not coated).
Dirty Filter Indicator
A diaphragm type of indicator measures the air pressure on either side of the lter and when the pressure
drops below the set point, a red LED is illuminated. The set point is adjustable.
Cabinet Color and Material
ICE air conditioners are available in two cabinet colors -the standard gray and beige. The standard
cabinet’s sides, top and front panels are constructed of 16 gauge painted steel. Contact your sales
representative for color chips, custom colors and 316 stainless steel cabinets.
Fresh Air Damper
Allows introduction of outside air into the building to provide positive pressurization. Field installed
on either the left or right hand side of the unit. See Appendix A for installation instructions.
Model Number Fresh Air Damper Part # Fresh Air Damper Filter Part # Fresh Air Damper Filter Size In (mm)
CFA3240 K/04757-xxx 92127 9¼” x 37” x ⁄” (235 x 940 x 10)
CFA3300/3360 K/10169-xxx 92526 12” x 26” x 1” (305 x 660 x 25)
xxx designates the color. 200 = Grey (standard). 100 = Beige. 500 = Stainless Steel
Crankcase Heater
Crankcase Heater Recommended for use for units installed in cold climates.
Dual Compressors With Lead/Lag Operation
Freeze Sensor On Indoor Coil
Prevents frost on the indoor coil caused by a loss of air ow or restrictive duct work.
Filter Access From Return Air Grille
Factory or eld installed lter bracket allows changing and access to the lters from the return air grille.
See model ID, special option code “I”.
Reverse Air Flow Conguration
Location of Supply and Return Air Openings are reversed.
1.7 Electrical Operation
The compressor and condenser fan are energized with a contactor controlled by a 24 VAC pilot signal.
Some compressors incorporate an internal PTC crankcase heater that functions as long as primary power
is available. The heater drives liquid refrigerant from the crankcase and prevents loss of lubrication
caused by oil dilution. Power must be applied to the unit for 24 hours before starting the compressor.
The condenser (outside fan) motor is energized by the same contactor.
The indoor evaporator fan motor is controlled by the fan purge on the electronic control board.

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ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
Figure 1a. Typical Electrical Schematic for Single Compressor Units

11 ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
Figure 1b. Typical Electrical Schematic for Dual Compressor Units

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ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
Chapter 2 Installation
WARNING
Failure to observe and follow Warnings and Cautions and these Instructions could result
in death, bodily injury or property damage. Read this manual and follow its instructions
and adhere to all Cautions and Warnings in the manual and on the ICE unit.
2.1 Equipment Inspection
Concealed Damage
Inspect all cartons and packages upon receipt for damage in transit Remove cartons and check for
concealed damage. Important: keep the unit upright at all times. Remove access panels and examine
component parts. Inspect refrigerant circuit for fractures or breaks. The presence of refrigerant oil
usually indicates a rupture. If damage is apparent, immediately le a claim with the freight carrier.
Units that have been turned on their sides or tops may have concealed damage to compressor motor
mounts or to the oil system. If the unit is not upright, immediately le a claim for concealed damages
and follow these steps:
1. Set unit upright and allow to stand for 24 hours with primary power turned on.
2. Attempt to start the compressor after 24 hours.
3. If the compressor will not start, makes excessive noise, or will not pump, return the unit to the
freight carrier.
2.2 Installation Requirements
WARNING
Do not remove P-Trap Loop from condensate drain hose. P-Trap Loop must be primed at
initial startup before unit is run.
General
1. Inspect unit for completeness. Check for missing parts (e.g. hardware). Refer to the installation kit
information in section 2.3.
2. Remove access panels and check for loose wires. Tighten screw connections.
3. Complete and mail the warranty registration card.
You must consider all of the following when choosing the installation site:
1. Noise. Install the unit so that the least amount of noise will be transmitted to inhabited spaces.
2. Condensate Drainage.Condensate produced during operation must be discharged to a suitable
drain.
3. Placement.
A) Place the unit in a shaded area, if possible.
B) Install it above ground for protection against ooding.
C) The unit exhausts air. Be sure that the airow is not impeded by shrubbery or other obstructions.
D) When installing multiple units, please note the recommended clearances noted in Table 4.
CAUTION
CFA3240, 3300, 3360 units require additional support. The mounting anges alone are
not adequate.

13 ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
4. Airow Requirements:
This is maximum external static pressures for duct design. Duct pressure drop not to exceed these values.
Maximum Static Pressures CFA3240 CFA3300 CFA3360
IWG 1.4 1.6 0.8
Pa 348 398 149
Keep duct lengths as short as possible. Do not obstruct airow through the unit.
Duct work should be designed and installed in accordance with all applicable safety codes and
standards. Industrial Climate Engineering strongly recommends referring to the current edition of
the National Fire Protection Association Standards 90A and 90B before designing and installing duct
work. The duct system must be engineered to insure sufcient air ow through the unit to prevent
over-heating of the heater element. This includes proper supply duct sizing, sufcient quantity of
supply registers, and adequate return and lter areas. Duct work must be of correct material and must
be properly insulated. Duct work must be constructed of galvanized steel with a minimum thickness
of .019 inches. Duct work must be rmly attached, secured, and sealed to prevent air leakage. See
section 2.4 for additional duct work requirements.
5. Clearances:
Note the minimum clearances required for proper operation and service. There must be no obstruction
24" from the sides of the unit, or 120"from the front of the unit. Additional clearance is required in
high ambient temperatures, greater than 120°F (49°C).
MODEL
MIN. CLEARANCE
AROUND SIDES
(SINGLE UNIT)
MIN. CLEARANCE
BETWEEN UNITS
(TWO UNITS)
MIN. SPACE
ABOVE UNIT
MIN. SPACE
BEHIND UNIT
All Models 24 inches (61 cm) 24 inches (61 cm) 24 inches (61 cm) 120 inches (305 cm)
Table 5. Minimum Clearances
6. Codes:
Make sure your installation conforms to all applicable electrical, plumbing, building, and municipal
codes. Some codes may limit installation to single story structures.
7. Electrical Supply:
The power supply must have the appropriate voltage, phase, and ampacity for the model selected.
Voltage must be maintained above minimum and below maximum specied values listed below.
Refer to the data sticker on the unit for ampacity requirements.
Note: Operation near the Minimum or Maximum limits at extended periods voids the warranty.
Power supply should be at nominal Voltage.
Electrical Rating Designations* A C D Z
Nominal Voltage 208/230 208/230 460 575
Phase 1 3 3 3
Minimum Voltage 197 197 414 518
Maximum Voltage 253 253 506 632
* Letters refer to model number code designations. Refer to page 5.
Table 6. Voltage Limitations
2.3 Installation Materials
The CFA may be shipped with a top bracket and optional lifting brackets. The top bracket provides a
method of sealing the top of the unit from water intrusion. The bracket is shipped attached to the top of
the unit. Before installing the unit, remove the bracket and reattach as described in Section 2.5

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ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
If ordred, the lifting brackets are shipped attached to the back panel of the unit. These brackets provide
a method for lifting the unit. The installation of the brackets is described in Section 2.6.
Kit Components:
Accessories:
The package may include other factory-supplied items (optional):
P/N Description
70705 CommStat 6 2/4 HVAC Controller, Solid State Lead/Lag Controller
S/12087-04 CommStat 6 4/8 HVAC Controller, Solid State Lead/Lag Controller
S/12087-06 CommStat 6 6/12 HVAC Controller, Solid State Lead/Lag Controller
S/07846 CommStat 4 HVAC Controller, Solid State Lead/Lag Controller
S/04581 CommStat 3 HVAC Controller, Solid State Lead/Lag Controller
50123 Digital thermostat. 1 stage heat, 1 stage cool. 7 day programmable. Fan switch: Auto &
On. Auto-change over. Keypad lockout. Non-volatile program memory.
93189 Double Deection Aluminum Supply Grille for the CFA1120/1150 & CFA3150
42½ x 151/4 (1,080mm x 387mm)
93188 Aluminum Return Filter Grille for the CFA1120/1150 & CFA3150
42½ x 21½ (1,080mm x 546mm)
93190 Double Deection Aluminum Supply Grille for the CFA3180/3240/3300/3360
54½ x 15½ (1,384mm x 394mm)
93191 Aluminum Return Filter Grille for the CFA3180/3240
54½ x 21½ (1,384mm x 546mm)
93192 Aluminum Return Filter Grille for the CFA3300/3360
54½" x 37½" (1,384mm x 953mm)
Additional Items Needed:
Additional hardware and miscellaneous supplies (not furnished by ICE®) are needed for installation.
The list below has the items typically needed for mounting a unit on a wood frame wall structure.
Concrete or berglass structures have different requirements. ICE cannot recommend a specic method
of attaching the air conditioner to the building due to the wide variety of building types, code require-
ments, wall construction and specic installation conditions. The installation of the air conditioner to
the building must take in to account all of these factors and follow best industry practices to provide a
safe and secure attachment to the building.
• Mounting bolts for unit mounting anges. The length needed is typically the wall thickness plus
one inch (25 mm).
• Washers
• Hex nuts
• Silicone Sealer to seal around cracks and openings
• Minimum 5 conductor low voltage multicolored wire cable (i.e. thermostat wire)
• Appropriate electrical supplies such as conduit, electrical boxes, ttings, wire connectors, etc.
• High voltage wire, sized to handle the MCA (minimum circuit ampacity) listed on the data plate.
• Over-Current Protection Device sized in accordance with the MFS (maximum fuse size) listed on
the unit data plate.

15 ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
WARNING FIRE HAZARD
Improper adjustment, alteration, service, maintenance or installation could cause serious injury,
death and/or property damage.
Installation or repairs made by unqualied persons could result in hazards to you and others.
Installation MUST conform with local codes or, in the absence of local codes, with codes of all
governmental authorities have jurisdiction.
The information contained in this manual is intended for use by a qualied service agency that is
experienced in such work, is familiar with all precautions and safety procedures required in such
work, and is equipped with the proper tools and test instruments.
2.4 Porting and Duct Work
General Information
Note: The following instructions are for general guidance only. Due to the wide variety of installa-
tion possibilities, specic instructions will not be given. When in doubt, follow standard and accepted
installation practices, or contact ICE™ for additional assistance.
Wall Openings
Measure the dimensions of the supply and return ports on the unit.
Cut the openings in the exterior wall for the supply and return. IMPORTANT: All units with electric
heat must have 1" (25.4mm) clearance on all four sides of the supply outlet duct ange on the
unit. The 1" (25.4mm) clearance must extend on all sides of the supply duct for the rst 3 feet
(1 meter) from the unit.
IMPORTANT: ICE™ requires a minimum of 1" (25.4mm) from the surface of any supply ducts to
combustible material for the rst 3 feet (1 meter) of the duct.
Ducting
Extensions should be cut ush with the inside wall for applications without duct work.
Applications using duct work should be designed and installed in accordance with all applicable safety
codes and standards. ICE strongly recommends referring to the current edition of the National Fire
Protection Association Standards 90A and 90B before designing and installing duct work. The duct
system must be engineered to insure sufcient air ow through the unit to prevent over-heating of the
heater element. This includes proper supply duct sizing, sufcient quantity of supply registers, adequate
return and lter area. Ductwork must be of correct material and must be properly insulated. Duct work
must be constructed of galvanized steel with a minimum thickness of .019 inches for the rst 3 feet (1
meter). Ductwork must be rmly attached, secured and sealed to prevent air leakage. Do not use duct
liner on inside of supply duct within 4 feet (122cm) of the unit.
Galvanized metal duct extensions should be used to simplify connections to duct work and grilles. Use
fabric boots to prevent the transmission of vibration through the duct system. The fabric must be U.L.
rated to a minimum of 197°F (92°C).
Minimum Airow Requirements
The duct system must be engineered to assure sufcient air ow through the unit even under adverse
conditions such as dirty lters, etc.
2.5 Top Flange Installation (See Figure 2)
1. All models have built-in side mounting anges.
2. Attach the top ange to the top of the air conditioner. The holes in the top of the air condtioner have
been predrilled. Remove the 4 screws in these holes and use these screws to attach the top ange
to the air conditioner.
3. Apply a bead of silicone sealer on the wall side of the bottom support brackets on the unit. Circle
the mounting holes with the silicone bead.

16
ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
Figure 2. Top Flange and Lifting Bracket Installation (Typical)
2.6 Installing the Optional Lifting Brackets
Lifting brackets are available which can be installed on the top of the side panels. These brackets allow
the unit to be picked up using lifting eyes in the brackets. Attach the brackets to the left and right side
panels as shown in Figure 3. ICE units are shipped with the 4 screws for attaching the brackets installed
in the holes at the top of the side panels. When attaching the brackets, remove and reinstall the screws
and make sure the top of the bracket is angled towards the center of the unit.
2.7 Mounting The Unit
1. For wiring into the back of unit, locate the lower of the two knockouts on the wall side of the unit.
Drill a one inch hole in the shelter wall to match this opening. Allow sufcient clearance to run
3/4" conduit through the hole and to the unit.
2. Lift the unit into position using an appropriate and safe lifting device.
3. Make sure that the duct anges are properly aligned with the wall opening. Adjust as necessary.
4. Note the holes in each side ange. Using the holes for guides, drill holes through the wall with a
drill bit. Insert the bolts through the anges. Install nuts and washers on the inside of the shelter.
Tighten the bolts to secure the unit.
5. Apply a bead of silicone where the side and top anges contact the exterior wall.
6. On the inside of the shelter, install the wall sleeves in the supply and return air openings. The sleeves
may be trimmed to t ush with the inside wall.
7. Check the t of each sleeve to its mating ange for possible air leaks. Apply silicone sealer to close
any gaps. Install the air return and supply grilles.

17 ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
For units with electric heat, a one inch clearance is required around the duct extensions. The duct extensions must be constructed of
galvanized steel with a minimum thickness of .019” as per the NFPA standards 90A & 90B.
Figure 3. Air Conditioner Wall Mount Detail
2.8 Compressor Chocks Removal
WARNING
Wooden compressor chocks must be removed and discarded when unit is at nal
shipping destination. If chocks are not removed damage to compressor or copper
system may occur.
Final installer must remove wooden chocks from beneath compressors.
Remove screw from in front of wooden chock, pull chock out from underneath compressor and discard
both screw and wooden chock.
Note: There are two chocks to be removed one in the front of the compressor and one at the back of
the compressor.
Rear Chock Front ChockScrew
Figure 4. Compressor Chock Removal

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ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
2.9 Unit Support Recommendations
Guidelines:
1. The base of the unit should be fully supported and not allow deection in static or dynamic loading
2. The supports should run perpendicular to the fork pockets on the base of the unit
3. The fork pockets should remain in place for best support
4. The supports should be 12” on center and include all outer edges
5. The unit should be mechanically fastened to the support platform to not allow independent movement
between the unit and its support
Figure 5a Unit Compression Support Examples Figure 5b Unit Tension Support Examples
This is a recommendation as it relates to best practices for supporting the unit. Understand that how the unit
should be supported varies based on several factors such as available space, supporting structure (concrete,
metal), application (static or dynamic) etc. ICE recommends that the structural integrity of the design be evalu-
ated by a structural expert before integration into the design. Any decision on use of materials or geometry
are the sole responsibility of the customer. Please be advised that supporting the unit along the entire base is
required for proper logistics movement and in place operation.
2.10 Electrical Connections
WARNING ELECTRICAL SHOCK HAZARD
Failure to follow safety warnings exactly could result in serious injury, death, and/or
property damage.
Turn off electrical power at fuse box or service panel BEFORE making any electrical
connections and ensure a proper ground connection is made before connecting line
voltage.
Important
All electrical work must meet the requirements of local codes and ordinances. Work should be
done only by qualied persons.
The units may incorporate an internal crankcase heater for compressor protection. The crankcase
heater must be energized for at least 24 hours prior to starting the compressor.
Scroll compressors, like several other types of compressors, will only compress in one rotational direction.
The direction of rotation is not an issue with single-phase compressors since they will always start and
run in the proper direction. However, three phase compressors will rotate in either direction depending
upon phasing of power. Since there is a 50-50 chance of connecting power in such a way as to cause
rotation in the reverse direction, it is imperative to conrm that the compressor is rotating in the proper
direction at the initial eld start-up of the system. Verication of proper rotation is made by observing

19 ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
that the suction pressure drops and the discharge pressure rises when the compressor is energized. An
alternate method of verication for self contained system with small critical refrigerant charges, where
the installation of gauges may be objectionable, can be made by monitoring the temperature of the
refrigerant lines at the compressor. The temperature should rise on the discharge line while the suction
line temperature decreases. Reverse rotation also results in a substantially reduced current draw when
compared to tabulated values.
There is no negative impact on durability caused by operating three phase compressors in the reversed
direction for a short duration of time, usually dened as less than one hour. However, after several
minutes of operation the compressor's internal protector will trip. The compressor will then cycle on
the protector until the phasing is corrected. Reverse operation for longer than one hour may have a
negative impact on the bearings.
To change the rotation, turn off power to the unit and reverse L1 & L2 at the disconnect in the air
conditioner.
The middle front panel provides access to the electrical/control box and to the lters. This panel has hinges
on the left and right hand side. This panel should ONLY be opened by using the two hinges on the left
side OR the two hinges on the right side. NEVER OPENALLFOUR HINGES SIMULTANEOUSLY.
If all four hinges are opened simultaneously, the front panel will drop and may cause serious injury
and damage the panel.
DANGER
NEVER open all four hinges simultaneously. The panel should ONLY be opened by using
the two hinges on the left side OR the two hinges on the right side.
High Voltage Wiring
The power supply should have the proper voltage, phase, and ampacity for the selected model.
1. Refer to the electrical data on the data sticker on the unit for eld wiring requirements of the unit.
Size the incoming power supply lines and the fuse(s) or HACR breaker(s) according to requirements
described in the National Electric Code. Run the power conductors through the knockouts on the
side or back of the unit. Use appropriate conduit and strain reliefs.
CAUTION
Note: Power supply service must be within allowable range (+10% - 5%) of rated voltage
stamped on the unit rating plate. To operate nominal 230/208V unit at 208V, change the
transformer line tap from 240V to 208V following the instruction on wiring label in unit.
2. Connect the wires to the input side of the internal breaker or terminal block L1, L2, & L3 for three-
phase models.
3. Install the ground wire on the ground lug.
4. For units designed for operation on 208/230V, 60Hz power supply, the transformer is factory wired
for a 230V power supply. For a 208V power supply, remove the orange lead from the transformer
and connect the red lead. Insulate the orange lead.
CAUTION
The external breaker(s) that provide power to the air conditioner must be sized per the
maximum Fuse Size (MFS) shown on the Unit's data label.

20
ICE CFA3240A-3300A-3360A I&O Manual 10/2023 Rev.11
Dual Unit Phasing
For applications where one controller operates two units, e.g., the CommStat 4.
1. Wire each unit as described in steps 1 through 4 above.
2. Test for proper phasing as follows:
A. Power up the units.
B. Using an AC volt meter set to the 300 volt scale, measure voltage between terminal L1 on the
compressor contactor of unit #1 and terminal L1 on the compressor contactor of unit #2 If
voltage is present, units are wired out of phase and must be rewired.
C. If units are not in phase, turn off power and reverse the eld power leads connected to the
internal circuit breaker on one of the units only.
D. Restore power and retest the phase (step B). When the voltage reads "0", the units are in phase.
E. Turn off power and proceed.
Low Voltage Wiring
IMPORTANT. The following instructions are generic wiring instructions and may not be applicable
for air conditioners with various options. Always refer to the wiring diagram in the air conditioner for
the proper method to wire your unit.
1. On single units, pull the low voltage wiring (e.g., 18 gauge 4-conductor Class 2 thermostat wire)
from the air conditioners into the thermostat / subbase assembly. See Figure 4a for connections to
various thermostats.
2. Mount the thermostat on the wall of the shelter. The thermostat should be located so that the supply
air from the unit does NOT blow directly on to the thermostat. Connect the thermostat to the terminal
block in the air conditioner as shown in Figure 6a.
3. On dual units, refer to either the ICE CommStat 3 or CommStat 4 Controller Specication sheet.
Wire the two air conditioners to the Lead/Lag Controller, according to the wiring diagram on the
specication sheet.
Remote Signalling: Terminals 5 & 7(N.O.) and 6 & 7 (N.C.) on the air conditioners terminal board are dry
contacts which can be used for remote signalling in the event of a/c cutoff on low or high pressure limit.
Continuous fan operation: For continuous indoor fan operation on single units, install a jumper between
terminals 8 and 3.
CommStat 6 Lead /Lag HVAC Controller
The CommStat 6 HVAC controller is designed for controlling up to six redundant air conditioners in an
E-House or telecommunication shelter and is available in three congurations.
CommStat 6 2/4 - Controls up to two single or 2-Stage air conditioners
(4 Stages max.) Marvair Part Number:. 70705
CommStat 6 4/8 - Controls up to four single or 2-Stage air conditioners
(8 Stages max.) Marvair Part Number: S/12087-04
CommStat 6 6/12 - Controls up to six single or 2-Stage air conditioners
(12 Stages max.) Marvair Part Number: S/12087-06
In addition to the control of the air conditioners, the CommStat 6 controller has multiple congurable
outputs for remote alarms or notication. The CommStat 6 controller is factory programmed with
standard industry set points, but can be congured on site. Settings are retained indenitely in the event
of a power loss.
CommStat 4 Lead /Lag HVAC Controller
Please refer to the Product Data sheet for the CommStat 4 controller for complete instructions
on installing and programming this controller.
CommStat Touch Lead/Lag HVAC Controller (See Figure 4b)
The CommStat Touch telecom controller with a touch screen interface is designed to allow remote
control and monitoring of ICE air conditioners with single or 2-stage compressors in a shelter