AIRSYS 3R1C1 User manual

Wall Mounted Packaged Air
Conditioners
Models
3R1C1 9E1C2
5R1C1 13E1C3
17E1C20.E1C2 18.E1C418E1C4
INSTALLATION AND OPERATION MANUAL
AIRSYS Refrigeration Engineering Technology (Beijing) Co.,Ltd

This document contains proprietary information that is protected by copyright and other intellectual property laws.
No part of this document may be reproduced, translated, or modified without the prior written consent of AIRSYS.
The information contained in this document is subject to change without notice.
AIRSYS provides this material as is and makes no warranty of any kind, expressed or implied, including, but not
limited to, the implied warranties of merchantability and fitness for a particular purpose. AIRSYS shall not be liable
for errors contained herein or for incidental or consequential damages (including lost profits) in connection with the
furnishing, performance, or use of this material whether based on warranty, contract, or other legal theory.
Designations used by other companies to distinguish their products are often claimed as trademarks. In this
document, the product names appear in initial capital or all capital letters. Contact the appropriate companies for
more information regarding trademarks and registration.
Copyright ©2012 by AIRSYS
AIRSYS Refrigeration Engineering Technology (Beijing) Co. Ltd
No.28 LuGu East Street
Shijingshan Beijing, China 100040
Phone: [phone]
Fax: [phone]
http://www.air-sys.com
Item Code: 1170104800
Version Number: 2.2.4

Page i
Contents
Chapter 1: Overview................................................................................................................................1
Using this Manual ................................................................................................................................2
Documentation Conventions.............................................................................................................2
Model Identification...........................................................................................................................3
Acronyms and Abbreviations ............................................................................................................4
Product Overview.................................................................................................................................5
Unit Operation..................................................................................................................................5
The Control System (Controller Box).................................................................................................6
Chapter 2: Installation..............................................................................................................................7
Installation Preparation.........................................................................................................................7
Delivery............................................................................................................................................7
Warranty...........................................................................................................................................8
Moving the Unit.................................................................................................................................8
General Safety Rules........................................................................................................................8
Required Materials...............................................................................................................................9
AIRSYS Supplied Materials ..............................................................................................................9
Installer Supplied Material...............................................................................................................10
Summary Electrical Ratings (Wire Sizing).......................................................................................11
Physical Installation............................................................................................................................12
Select the Wall for Installing the Unit...............................................................................................13
Make Openings and Holes..............................................................................................................14
Install Weather Stripping.................................................................................................................15
Position the Unit .............................................................................................................................15
Remove Wooden Pallet from WPU.................................................................................................16
Seal the Joints between WPUs and Wall ........................................................................................17
Attach the Supply Air Grill and the Return Air Grill to the Wall .........................................................17
Remove the Compressor Brackets..................................................................................................18
Controller Box Installation ..................................................................................................................19
Install Outdoor Temperature Sensor ...............................................................................................21
Position the Humidity Sensor..........................................................................................................24
Position Indoor Temperature Sensors and Supply Air Temperature Sensors...................................24
Complete Electrical Connections........................................................................................................26
Cautions.........................................................................................................................................26
Overview of Wiring .........................................................................................................................26
Electrical Connection to Controller Box...........................................................................................29
Electrical Connection to WPUs .......................................................................................................30
Complete the Installation Checklist.....................................................................................................33
Verify System Operation ....................................................................................................................34
Turn On Component Breakers........................................................................................................34
Turn on Primary Power...................................................................................................................34
Execute the Step-Test....................................................................................................................35
Turn the HVAC System On.............................................................................................................36
Set System Time............................................................................................................................37
Verify the sensor readings..............................................................................................................38
Verify Input and Output Alarms.......................................................................................................38
Complete the Registration Card......................................................................................................39
Chapter 3: System Operation.................................................................................................................44
User Interface Introduction.............................................................................................................44

Page ii
Navigating the Main Menu..................................................................................................................45
Turning the HVAC System On or Off...............................................................................................46
Using Comfort Mode.......................................................................................................................47
Sequence of Operation......................................................................................................................48
Compressor and Heater Operation .................................................................................................48
Free Cooling (Economizer) Operation.............................................................................................48
Executing the Step-Test.....................................................................................................................49
Alarms...............................................................................................................................................50
Viewing Alarm History.....................................................................................................................51
Clearing Alarm History....................................................................................................................51
Alarm Descriptions .........................................................................................................................52
System Diagnostics............................................................................................................................57
Port Definitions...............................................................................................................................57
System Parameters and Default Values..........................................................................................58
Chapter 4: Preventive Maintenance.......................................................................................................67
Preventive Maintenance Schedule .....................................................................................................67
General Operation Check...............................................................................................................67
Replace Air Filter............................................................................................................................69
Clean the Preliminary Air Filter........................................................................................................69
Inspect and Clean Condenser Coils................................................................................................70
Inspect and Clean the Drain Pipe....................................................................................................70
Physical Inspection of the Damper..................................................................................................70
Operation Checklist............................................................................................................................71
Spare Parts........................................................................................................................................72
Appendix 1:Drawings.............................................................................................................................73
Appendix 2:Reference Tables................................................................................................................73
Appendix 3:List of Tables.......................................................................................................................75
Appendix 4:List of Figures .....................................................................................................................76

Chapter 1: Overview
Page 1
Chapter 1: Overview
Thank you for choosing a unit manufactured by AIRSYS REFRIGERATION ENGINEERING TECHNOLOGY
(BEIJING) CO., LTD.
The AIRSYS line of wall mounted HVAC systems is optimized for energy efficiency. These systems are uniquely
designed for the efficient removal of heat generated by electronics from enclosed shelters. The supply air of the
AIRSYS system is delivered from the bottom of the machine and the exhaust is at the top, the opposite of a
traditional HVAC system. This “bottom throw” is designed to take full advantage of the fact that hotter air rises.
With the exhaust located higher within the shelter, every rotation of the fan removes more heat. The cooler air
supplied at the bottom accelerates this natural process. This is just one of many design features that makes the
AIRSYS HVAC systems among the most energy efficient in the world.
Another feature that promotes energy efficiency is the robustly designed integrated economizer, described as “free
cooling”. This feature combines with the powerful controller to provide 100% cooling capacity of the wall pack unit
(WPU), consuming ~ 1kW or less whenever the outdoor temperature is a few degrees lower than a predetermined
set point. This feature alone can save telecom operators significant utility cost, especially in cool weather climates.
Along with the energy efficiency, these systems are simple to operate, maintain, and service. The AIRSYS design
team is committed to listening and responding to the customer community. As a result, these systems have
continuously evolved with customer-defined features that have improved the overall quality and the user experience.
Usability features include:
A functional step test that facilitates complete operational verification in less than 5 minutes
Simple unobstructed access to all key components for Preventive Maintenance (PM) and servicing
No need to define compressor orientation as the units can be easily serviced with as little as an 8 inch clearance
on either side
A high level of redundancy in the precision lead/lag controller to enhance reliability
Completely selectable alarm relays (NC or NO) to enable the system to adapt to the customer’s requirements
The AIRSYS WPUs are available in cooling capacities from 1.0 ton through 5.0 ton; however, the sensible cooling
capacity of these machines is as much as 40% higher than a traditional machine. An available ordering guide helps
to properly match the capacity of the HVAC system to the heat load in the shelter.
Heating elements can also be included per customer requirements in a range from 1.5 kW through 5.0 kW.
With a suite of best in class components from around the globe, the AIRSYS WPU delivers quality and reliability
while substantially reducing cost of operation.

Chapter 1: Overview
Using this Manual
Page 2
Using this Manual
Before attempting to install or start the unit, you should read this manual carefully. Retain this manual for reference
for the entire operational life of the unit. This manual provides information on the following general topics:
Product overview
System installation including preparation, physical and electrical installation of WPUs and the controller box,
and commissioning the system
System operation, including system alarms, program menus, and advanced troubleshooting
Preventive maintenance
Documentation Conventions
For safety and to achieve the highest levels of performance, always follow the warnings and cautions in this manual
when handling and operating the AIRSYS unit.
Danger. Emphasizes hazardous conditions that could cause personal injury or death.
Warning. Indicates where the operator must proceed with caution to avoid personal injury or damage to
property.
Important. Indicates technical information critical for proper installation or operation.
Table 1 lists symbols and their meaning that may appear on the external packaging.
Table 1: Packaging Symbols
Symbol
Meaning
Symbol
Meaning
THIS SIDE UP
Shows the orientation of the unit.
NO HOOKS
Do not use hooks to lift the packed unit.
FRAGILE
Handle with care.
KEEP AWAY FROM HEAT
The unit must be kept away from heat
sources.
PROTECTAGAINST RAIN:
The packaged unit must be stored in a dry
place.
DO NOT STACK

Chapter 1: Overview
Using this Manual
Page 3
Model Identification
Each unit is identified by a model number, such as M-OD.13E1C3DR410.230/1/60.DC. The elements in the number
are explained in
Table 2.
Table 2: Model Number Nomenclature
1 M-OD
213
3E1
4C3
5 D
6 R410
7 230/1/60
8AC
9
M-OD.13E1C3DR410.230/1/60.AC
Product series name: M-OD = MOBILECOOL-OUTDOOR：Packaged air conditioner with fresh air free cooling.
Unit nominal total cooling capacity in kW
Compressor type & number: E1 = Hermetic scroll compressor qty 1; R1= Rotary compressor qty 1
Cabinet size code: There are 4 cabinet sizes: C1, C2, C3 & C4.
Control configuration: D = Unit is designed to operate in a Dual control environment (aka Lead/Lag operation)
Refrigerant: R410 = R410a.
Power source: Voltage/Phase/Frequency; 230V/1φ/60Hz, 230V/3φ/60Hz, 460V/3φ/60Hz.
Supply Fan configuration: DC = DC EC fan; AC = AC EC fan. (EC = Electronically commutated variable speed fan)
Special code: Utilized to designate unit customization (non-standard configuration)
1
3
5
7
2
4
6
8
9

Chapter 1: Overview
Using this Manual
Page 4
Acronyms and Abbreviations
Table 3 lists acronyms and abbreviations used in this manual.
Table 3: Acronyms and Abbreviations
Term
Meaning
AIRSYS
AIRSYS Refrigeration Engineering Technology (Beijing) Co., Ltd
AAST
AIRSYS Authorized Service Technician
Amp
Ampere, unit of electric current, or rate of flow of electricity
AUT/MAN
Automatic/Manual
BMS
Building Monitoring System
CFM
Cubic Feet per Minute
Com
Common
Comp
Compressor
Cond
Condenser
DC
Direct Current
Gen Run
Generator Run Signal
EC
Electronically Commutated (Referes to variable speed evaporator/supply fan)
Evap
Evaporator
FC
Free Cooling
HVAC
Heating, Ventilation, and Air Conditioning
Humid
Humidity
I/O
Input/Output
IPU
Indoor Packaged Unit
kW
Kilowatt
LED
Light Emitting Diode
MC
Mechanical Cooling
N.C.
Normally Closed
N.O.
Normally Open
pLAN
PCO controller Local Area Network
PLD
Programmable LED Display
PSI
Pounds per Square Inch
PWM
Pulse Width Modulation
R
Read Only
RoHS
Restriction of Hazardous Substances Directive
R/W
Read/Write
Temp
Temperature
VAC
Voltage in Alternating Current
VDC
Voltage in Direct Current
WPU
Wall Packaged Unit

Chapter 1: Overview
Product Overview
Page 5
Product Overview
Unit Operation
The air conditioning system has three key components:
1. The free cooling system
2. The mechanical cooling system
3. The control system
The control system determines the unit’s mode of operation: free or mechanical, as shown in Figure 1.
Figure 1: Basic Operating Modes
Free Cooling System
When the operating conditions for free cooling are met, the control system switches the air damper to the free
cooling position. Cooler air from outside is delivered to the shelter by the supply air fan. At the same time, hot air in
the shelter is discharged to the outdoor environment.
Mechanical Cooling System
When the operating conditions for mechanical cooling are met, the control system switches the air damper to the
mechanical cooling position. The compressor compresses the refrigerant gas and sends it to the condenser. The
condenser is a heat exchanger, removing heat from the hot compressed gas and allowing it to condense into a liquid.
The liquid refrigerant is then routed to the thermal expansion valve, which acts as a restriction device by forcing the
refrigerant to go through a small hole. This causes the pressure to drop. Then the liquid refrigerant is routed to the
evaporator. The evaporator is also a heat exchanger, absorbing heat from the indoor hot air causing the liquid
refrigerant to change back into gas. The refrigerant gas is then routed back to the compressor to complete the cycle.
Free Cooling Mode
Mechanical Cooling Mode

Chapter 1: Overview
Product Overview
Page 6
The refrigerant is used over and over again, absorbing heat from the indoor environment and discharging the
condenser heat to the outdoor environment.
The Control System (Controller Box)
The AIRSYS controller box is designed to operate a fully or partially redundant air conditioning system for
equipment shelters or enclosures. Two variations of the AIRSYS Lead Lag Controller are available: ASLLC.2 &
ASLLC.2.48.
ASLLC.2 is standard for HVAC equipped with an AC EC evaporator fan.
ASLLC.2.48 is standard for HVAC equipped with a DC EC evaporator fan.
The controller box is factory programmed with standard industry set points but can be configured on-site to meet
specific needs. Settings are retained indefinitely in the event of a power loss.
Ease of Control and Configuration
The controller box has a convenient Programmable LED Display (PLD). The PLD and button actions are explained
in more detail in Chapter 3 starting on page 48. This three-button PLD is the user interface by which an operator
can do the following:
Check current status of the HVAC system, such as sensor readings and operating mode
Change factory set points
Place the system temporarily into comfort mode
Review alarms and alarm history
Labeling on the outside of the controller box provides a convenient guide on how to access the most common
functions.
Many of these same functions can be accessed remotely via an RS485 communication interface built into the
controller.
Lead and Lag Roles
When mechanical cooling (MC) is required to maintain site temperature, only one unit is called upon to provide the
cooling. The unit that has this primary role during MC is referred to as the lead unit. The unit functioning in a
backup role during periods of MC is referred to as the lag unit. After a set period of time, the lead and lag units
switch roles. This scheduled change of roles ensures an extended and balanced operational life for each unit. The
factory default for the scheduled switch of roles is 168 hours (seven days); however, this can be adjusted using the
PLD (1 to 999 hours).
The lag unit will provide MC if the lead unit is unable to maintain site temperature on its own. This MC assistance
will occur if the heat load at the site is higher than the cooling capacity of a single WPU or if the system in the lead
role is functioning at a reduced capacity. A system in this state should be serviced as soon as possible.
During periods of free cooling (FC), both the lead and the lag units work together. This ensures longer periods of FC
which minimizes compressor run time. This design extends the life of the system and reduces energy consumption.

Chapter 2: Installation
Installation Preparation
Page 7
Chapter 2: Installation
Installation Preparation
Unpack the unit carefully. A number of parts are packed loosely and will be free moving as the packaging is opened.
Before discarding the box, check the packaging carefully for any parts or documents inside. Refer to Table 4 on
page 9 for the complete list of material shipped with each unit.
Check that:
The supply voltage meets the requirements as designated:
AC part: 230 VAC±15%;
(DC Supply fan only) DC part: 36VDC~57VDC.
The shelter to be conditioned is clean on the inside, and free of excess dirt and dust.
A minimum clearance of 61 cm (24”) between supply air and any equipment/rack or other obstruction is
recommended since any interference with the airflow will adversely affect the efficiency of the machine.
Also verify that you have all of the items that the installer must provide, listed in Table 5 on page 10.
Installation and startup must be performed by an AIRSYS Authorized Service Technician (AAST).
For more information about the AAST program, please contact:
Tempest Telecom Solutions
w. http://tempesthvac.com/
ph. 805-879-5432
e. [e-mail]
136 W. Canon Perdido Street, Suite 100 Santa Barbara CA 93101
Danger. All the installation work must be done by a skilled professional. Installation that does not comply
with the instructions herein can result in the loss of warranty coverage. AIRSYS shall not be held liable for any
damage caused to persons or objects due to incorrect installation or incorrect operational use of the units.
Warning. All the wiring installation must comply with the local compulsory safety standards and building
codes under all circumstances.
Warning. Outdoor use. Risk of electric shock can cause injury or death: disconnect all remote electric power
supplies before servicing
When no longer in use, disposal of equipment and materials must be compliant with the local relevant laws and
standards.
Delivery
When your units are delivered, be sure to inspect them to verify that they have not been damaged during transport.
Also verify that all requested accessories listed on the purchase order have been included.

Chapter 2: Installation
Installation Preparation
Page 8
Important. If packages show any signs of shipping damage or potential shipping damage, it is very
important to annotate shipping damage on the Bill of Lading prior to signing for the freight. In order to recover for
any damage, please take detailed photographs of all the packaging before the external packaging is removed. Once
detailed photos of the external packaging have been taken, then the external packaging may be removed so the items
can be inspected further. Please document with photos any damage to the equipment that relates directly to the
damage observed to the external packaging.
Without the detailed photos, it will be very difficult to recover equipment loss.
Warranty
The warranty duration is 12 months from the date of installation. AIRSYS warrants that its products will be free
from defects in materials and workmanship for a period of 12 months after installation.
The compressor is to be free from defect in material or workmanship for a period of 60 months from date of
installation.
Important. For sites equipped with a generator, when the generator switches to the primary source of power,
the instantaneous voltage may become lower. At this time, the compressor may run at a lower voltage which may
decrease the compressor’s working life. Make sure the wiring of Gen-Run signal input is connected which can
protect the compressor. The warranty does not cover damage to the compressor caused by repetitive out of
specification condition of the supply voltage during compressor operation.
AIRSYS will furnish free of charge replacement parts for any component failures that occur within the warranty
period. Customer is responsible for the cost of shipment of replacement material from the US distributor, Tempest
Telecom Solutions LLC.
Note: Warranty assumes that an AAST performs the installation and submits the warranty registration card that
accompanied the units in shipment. If the warranty registration card was not filled out and returned to the supplier,
then the warranty will be assumed to expire 12 months from the date of shipment for all components except the
compressor, which will be assumed to expire 60 months from date of shipment.
This warranty does not cover damage to the systems caused by misuse or abuse of the systems such as physical
damage due to mishandling. The warranty does not cover damage caused by force majeure.
Important. Any mishandling of the equipment or modifications to the equipment, unless agreed upon in
writing by AIRSYS, will void the warranty.
Moving the Unit
Forklifts are recommended for moving, loading, unloading, and positioning the WPU for installation. If bands or
ropes are used to create a sling, make sure that excessive force is not applied to the upper edges of the machines or
the package to avoid cosmetic or material damage. When using spacing bars, protective materials are required
around the units to prevent damage.
To avoid damage to the units while moving or transporting, ensure the units always remain in the upright position.
General Safety Rules
Danger. Do not carry out any operation on the machines if you do not have sufficient knowledge of the
operating principles and have not taken all the precautions that permit the system to operate in safe conditions.

Chapter 2: Installation
Required Materials
Page 9
Warning. Work on the electric board only after verifying prime power is disconnected. Do not apply power to
the machine with the covers removed.
Important. Before carrying out inspections, maintenance operations, and safety checks, follow all accident-
prevention standards such as wearing goggles, gloves, and an appropriate uniform.
Required Materials
AIRSYS Supplied Materials
Table 4 lists all the material supplied by AIRSYS. After opening the package, verify that all items are accounted for.
If any material is missing, please contact an AIRSYS distribution center using the following information:
Tempest Telecom Solutions, LLC
Web: http://tempesthvac.com/
Email: [e-mail]
Phone: [phone]
Table 4: Material Supplied by AIRSYS
Item
Model # or Part #
Qty
Item Description
Comments
Wall Pack Unit Assembly: Two per Shelter
1
Example:
M-OD.13E1C3DR410.230/1/60.AC
1
Wall pack unit
refer to Table 2: Model Number
Nomenclature
2
2030104200
1
Return air grill
Only included for models 3/5R1C1
2030104190
1
Supply air grill
2
8255504110
1
Return air grill
Only included for models 7/9E1C2
8255504120
1
Supply air grill
2
8255503240
1
Return air grill
Only included for models 13E1C3
8255503230
1
Supply air grill
2
8255504090
1
Return air grill
Only included for models 18E1C4
8255504100
1
Supply air grill
3
8553703300
24
Self-tapping screw ST4.2*25
For the supply and return air grill installation
Controller Box Assembly: One per Shelter
4
2040303110 or 2040307640
1
Controller box
Model: ASLLC.2 or ASLLC.2.48
5
9000000357
1
Indoor temperature sensor
One end connected inside the controller box
6
9000000357
1
Backup Indoor temperature
sensor
One end connected inside the controller box
7
9000000357
1
Outdoor temperature sensor
One end connected inside the controller box
8
8454020720
1
Humidity sensor
One end connected inside the controller box
9
8458716820
1
Sensor box
For housing outdoor temperature sensor and
mounting on outside wall
10
1170104040
1
Installation and Operation
Manual
11
1110212510
1
Registration card
Must be returned according to instructions
on page 39

Chapter 2: Installation
Required Materials
Page 10
Item
Model # or Part #
Qty
Item Description
Comments
12
1110212560
2
Compressor removing bracket
sticker
To remind the service technician to remove
the compressor bracket before turning on the
HVAC unit.
13
9000000357
2
Supply air temperature sensor
14
8458716650
4
Temp sensor hold connector
15
1050500720
2
Right angle supply air temp
sensor mounting bracket
Installer Supplied Material
Table 5 lists items required for installation that must be supplied by an AIRSYS Authorized Service Technician
(AAST). The wire length and gauge depends on site-specific conditions. However, recommendations are provided.
Table 5: Materials Supplied by the Installer
No.
Item
Qty
Description
Comments
1
AC power supply cable
to two WPUs
2
2 cables for two WPUs, AC part
(compressor & heater)
Refer to Summary Electrical Ratings
2
DC power supply cable
to two WPUs
(If the HVAC is
equipped with DC EC
supply fan )
2
2 sets of three –wire cable for two WPUs
DC part (supply fan).
Refer to Summary Electrical Ratings
3
DC power supply cable
to controller box
1
A set of two-wire cable for WPU controller
box
Max current capacity 0.5 Amps; 18
gauge recommended
4
Control harness from
controller box to WPU
2
Control harnesses with 13 wires from
controller box to each WPU
Terminals recommended but not
required. 18 gauge recommended
5
Alarm wiring harness
5
1 cable with 2 wires, length as needed
Alarm connection to controller box, 3
alarm inputs and 4 alarm outputs; all
alarm connections are optional
6
Supply air frame
2
Refer to Figure 23: Frame Dimensions on
page 73 for size details for each model
Built inside wall to facilitate air flow
7
Return air frame
2
Refer to Figure 23: Frame Dimensions on
page 73 for size details for each model
Built inside wall to facilitate air flow
8
Adhesive tape
As
needed
With single-sided adhesive
Used to line the return and supply air
frames
9
Silicone sealant
As
needed
Commercial grade outdoor silicone
sealant
10
Weather stripping
As
needed
Commercial grade neoprene weather
stripping or equivalent
Recommend a minimum of 25 mm (~1”)
wide and 20 mm (~0.8”) thick
Used to frame the WPU outlet and
inlet to create a weather tight seal
11
Terminals
52
Recommended for ease of terminal
block installation; however, not
required
12
Crimping pliers
If
needed
Only needed when using terminals
13
Nylon zip-tie
1
Small nylon zip tie
For properly dressing cables and
harnesses

Chapter 2: Installation
Required Materials
Page 11
No.
Item
Qty
Description
Comments
14
Breakers for AC power
panel
3
One 10 amp circuit breaker for ASLLC.2;
One circuit breakers each for the two
WPUs AC part, amperage based on
model number
Refer to Table 6: WPU Electrical
Ratings on page 11
15
Breakers for DC power
panel
(only if ASLLC.2.48 is
chosen and the HVAC is
equipped with DC EC
supply fan)
3
One 10 amp circuit breaker for
ASLLC.2.48;
One circuit breaker each for two WPUs
DC part, amperage based on model
number
Refer to Table 6: WPU Electrical
Ratings on page 11
Summary Electrical Ratings (Wire Sizing)
Table 6: WPU Electrical Ratings
ELECT. HEAT
1.5 KW
2.4kW
5 KW
AC
48VDC
AC
48VDC
AC
48VDC
Model
MCA
MFS
MCA
MFS
MCA
MFS
MCA
MFS
MCA
MFS
MCA
MFS
AC Supply Fan, Single Phase AC Power Supply
M-
OD
3R1C1DR410.230/1/60.AC
10
15
--
--
15
20
--
--
--
--
--
--
5R1C1DR410.230/1/60.AC
11
15
--
--
15
20
--
--
--
--
--
--
7E1C2DR410.230/1/60.AC
--
--
--
--
17
25
--
--
31
35
--
--
9E1C2DR410.230/1/60.AC
--
--
--
--
--
--
--
--
31
35
--
--
13E1C3DR410.230/1/60.AC
--
--
--
--
--
--
--
--
32
40
--
--
18E1C4DR410.230/1/60.AC
--
--
--
--
--
--
--
--
37
55
--
--
DC Supply Fan, Single Phase AC Power Supply
M-
OD
9E1C2DR410.230/1/60.DC
--
--
--
--
18
30
7
10
28
35
7
10
13E1C3DR410.230/1/60.DC
--
--
--
--
--
--
--
--
28
40
14
20
DC Supply Fan, Three Phase AC Power Supply
M-
OD
13E1C3DR410.230/3/60.DC
--
--
--
--
--
--
--
--
17
25
14
20
Note: This chart should be used as a general guideline for estimating the conductor size and over-current protection.
Always refer to the data label on the unit for sizing the conductors and over-current protection.
MCA = Minimum Circuit Ampacity (Wire Size Amps). MFS = Maximum Fuse Size or HACR circuit breaker.

Chapter 2: Installation
Physical Installation
Page 12
Physical Installation
To assist in the installation process, the following figure and table provide the schematic dimensions of the units
using a dimensional tolerance of ± 1/16” (2 mm).
Table 7: External Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)
Cabinet Size
C1
C2
C3
C4
Unit of measurement
mm
in
mm
in
mm
in
mm
in
Width (W)
700
27.6
1010
39.8
1160
45.7
1360
53.5
Depth (D)
620
24.4
700
27.6
700
27.6
700
27.6
Height (H)
1930
76.0
2130
83.9
2130
83.9
2130
83.9
Supply
A
200
7.9
268
10.6
268
10.6
268
10.6
B
450
17.7
708
27.9
759
29.9
880
34.7
Return
C
300
11.8
356
14.0
356
14.0
356
14.0
B
450
17.7
708
27.9
759
29.9
880
34.7
E
1000
39.4
1104
43.5
1104
43.5
1104
43.5
F
133
5.2
101
4.0
101
4.0
101
4.0
G
660
26.0
970
38.2
1120
44.1
1320
52.0
I
350
13.8
400
15.8
400
15.8
400
15.8
J
226
8.9
178
7.0
178
7.0
178
7.0
K
101
4.0
101
4.0
101
4.0
101
4.0
L
87
3.4
87
3.4
112
4.4
112
4.4
M
80
3.2
80
3.2
80
3.2
80
3.2
N
1800
70.9
1999
78.7
1999
78.7
1999
78.7
O
1815
71.5
2017
79.4
2017
79.4
2017
79.4

Chapter 2: Installation
Physical Installation
Page 13
Select the Wall for Installing the Unit
Select the wall where the unit will be installed. Be certain that the wall can support the weight of the unit and that
sufficient space is available for easy operation and installation, both inside and outside the mounting location. Refer
to Table 7 on page 12 and Table 8 below for dimensions and weights by model number.
Leave at least:
1200mm (47.24”) free space in front of the unit
400mm (15.75”) free space at the side of the unit (minimum of 205 mm (8”)
If any protrusions will hang over the unit covering any portion of the exhaust fans, you must leave a minimum of
1000mm (39.37”) free space above the unit.
Figure 2: Working Space
Table 8: Dimensions and Weight by model number
1 Ton
1.5 Ton
2 Ton
2.5 Ton
3.5 Ton
5 Ton
Model
3R1C1
5R1C1
7E1C2
9E1C2
13E1C3
18E1C4
Dimensions &
Weight
Width
in
27.56
27.56
39.76
39.76
45.67
53.54
Depth
in
24.41
24.41
27.56
27.56
27.56
27.56
Height
in
75.98
75.98
83.86
83.86
83.86
83.86
Weight
lbs
355
370
515
530
615/635*
712
*3.5 Ton (13E1C3) AC WPU = 615 lbs / 3.5 Ton (13E1C3) AC WPU = 635 lbs
Important. The wall selected for the unit must be strong enough to support both the static weight of the unit
and the vibration of a unit under operation.
Allow spacing as noted if any physical
structure will significantly reduce air flow.
Minor obstructions, such as a chain linked
fence, will not impact the HVAC system.

Chapter 2: Installation
Physical Installation
Page 14
Make Openings and Holes
Make openings for supply and return air and cable and bolt holes in the installation wall as shown in Figure 3 and
Figure 4; refer to Table 7 on page 12 for dimensions.
Figure 3: Left Side View
Figure 4: Openings and Holes in the Wall
Note: You may use
template printed on
the shipping carton to
create wall cuts.

Chapter 2: Installation
Physical Installation
Page 15
Install Weather Stripping
Before mounting the unit on the outside wall, fix the neoprene weather stripping (installer provided) around the
openings of the air supply and the air return to ensure an airtight closure, as shown in Figure 5.
Figure 5: Install Weather Stripping
Position the Unit
Important. The unit is heavy. Exercise caution while putting the unit in place to prevent damage to the WPU
or personnel.
The unit must be installed in a level position. An inclination of more than 6-7 mm (±1˚) could cause the
condensation tray to overflow (refer to Figure 6).
Figure 6: Inclination of Mounted WPU
Weather stripping
(Table 5, item 5)
Weather stripping
(Table 5, item 5)

Chapter 2: Installation
Physical Installation
Page 16
Lift the unit from below with lifting equipment or tools, and then move the unit to the wall. Use the screws (installer
supplied) to affix the unit on the wall. Generally this is done by following these steps:
1. Position the unit next to the wall using a forklift or leveling system.
Figure 7: Position the Unit
2. Attach a single mounting screw and adjust to ensure the unit is level.
Figure 8: Verify the Unit is Level
3. After the unit is level, attach the remaining mounting screws (a quantity of 10 total for each WPU).
Remove Wooden Pallet from WPU
The WPU is bolted to a wooden pallet to facilitate safe lifting and transport of the unit. Four bolts attach the pallet to
the unit, as show in Figure 9. The pallet frame is recessed under the WPU to allow for easy installation while using a
forklift. Before completing the mounting of the unit to the wall, remove the pallet by removing the four bolts.
Figure 9: Remove Wooden Pallet
Use either a level
system or a forklift
to position the unit.
Remove the 4 bolts under the
unit to remove the pallet