User & Technical Manual
NE020, NE030, & NE040 Series
Rev 2.2
Rev
Date
Owner
Description of Changes
1.0
09-22-10
G. Gonzalez
New Format Initial Release
1.2
12-01-10
G. Gonzalez
Update Unit Specification Section for SCCR, Update Preliminary
Test Section and Controller Section for Heater Set point Defaults
1.3
12-05-11
G. Gonzalez
Update Schematic Section & specs for max ambient
1.4
03-05-12
B. Slotnick
Update filter media part number
1.5
01-14-13
B. Slotnick
Revise mounting procedure
1.6
02-22-13
B. Slotnick
Added power connector
1.7
08-17-13
B. Slotnick
Added Appendix A
1.8
01-15-14
B. Slotnick
Update Adjustable Temperature Probe length
1.9
04-03-14
B. Slotnick
Update email address
2.0
08-04-14
B. Slotnick
Delete Celsius programming flash drive key
2.1
01-22-15
B. Slotnick
Update system schematic
2.2
03-23-15
B. Slotnick
Parts list: Added high pressure switch; updated filter information
Title: NE020, NE030, & NE040 Air Conditioner Technical Manual
Department: Engineering
Objective: To provide important information for maintenance, diagnostics and advance operations of the
Thermal Edge NE020, NE030 & NE040 Series Air Conditioners.
Revision History:
Statement of Confidentiality
The Manual and other materials contain proprietary information, comprising Thermal Edge Inc.'s trade secrets.
Please maintain the confidentiality of all proprietary information during and after the term of the use agreement.
Also, please refrain from using this proprietary information in any other manner, including in any other
business, without Thermal Edge Inc.’s written approval.
Thermal Edge Inc. reserves the right to revise and otherwise modify the Manual to reflect changes in the
requirements, standards, and operating recommendations. The Manual is the sole property of Thermal Edge
Inc. It must be returned upon the expiration or the termination of the term of use agreement.
By accepting the Manual you have read and understand the Statement of Confidentiality and will abide by its
terms and conditions.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 2 | P a g e
TABLE OF CONTENTS
Overview 4
Inspecting the Equipment 4
Unpacking the Air Conditioner 4
Moving the Air Conditioner 5
Unit Label 5
Operation 6
Preliminary Testing 6
Mounting the Air Conditioner 7
Unit Specifications 8
Options 10
System Faults 13
Digital Temperature Controller Programming 13
Preventative Maintenance 16
Field Serviceable Parts 17
Safety Information 17
Troubleshooting Guide 18
Physical Dimensions 21
Electrical Schematic 23
Warranty Information 24
Return Material Authorization (RMA) Procedure 25
Appendix A – Power Connector 26
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 3 | P a g e
Overview
Thank you for your purchase of the Thermal Edge Special Purpose Air Conditioner. Our air
conditioning equipment is carefully designed to cool and dehumidify the air in electronic component
enclosures. Thermal Edge has designed air conditioners for all types of electronic equipment
enclosures providing capacity from 1,000 to 20,000 BTUH.
This manual will guide you through the installation, maintenance, diagnostics and advance operations
of the NE020, NE030 & NE040 Series Air Conditioners. This manual contains important information
for the end-user who installs, maintains and/or operates the NE020, NE030 & NE040 Air Conditioner.
Technical Support
By Phone: 972-580-0200 / 888-580-0202
(Monday – Friday, 7:30 am – 5:00 pm Central Time)
By Email: support@thermal-edge.com
Our goal is to have continuous improvement for both our equipment and our documentation. We rely
and appreciate your feedback to help us achieve our goal. Our technical support team is glad to work
with you if you require additional technical information not provided in this manual.
Inspecting the Equipment
Thermal Edge air conditioning equipment is designed, manufactured and packed to prevent damage
from normal handling, shock and vibration during shipment. It is necessary to inspect your equipment
upon receipt to ensure that there is no visual or hidden damage.
Upon receipt of the equipment, ensure that it is always top side up as indicated by “THIS SIDE UP”
labels. This ensures that the compressor oil is not displaced.
Note: If the equipment has been on its side it must be put upright for at least 24 hours before installing
or running to ensure the compressor oil has returned to the compressor.
All physical damage to packing or signs of damage to the equipment must be noted on the freight bill
of lading. Packages must be opened after receipt and inspected for any internal or concealed damage
to the equipment and to verify proper count and order fulfillment. Delivery of without the pallet, not top
side up, other freight on top, damaged or wet should be refused.
Unpacking the Air Conditioner
Always keep air conditioner top up as shown by the packaging label and arrows. If the unit is to be
transported after initial unpacking, place air conditioner back in original packing to prevent damage.
For shipment by UPS or freight carrier, repack as received and re-band to the pallet.
Note: Shipping without being strapped to the pallet may result in tipping and damage, this will void the
warranty.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 4 | P a g e
Moving the Air Conditioners
Read this section completely before running or installing your Thermal Edge air conditioning
equipment.
Note: You will need to perform a Preliminary Test before mounting the air conditioner. Refer to the
Preliminary Test section in this manual for instructions on how to run this test. You will also need to
prepare the enclosure that is to be cooled for mounting in accordance with this manual and the
template supplied.
Note: Thermal Edge air conditioning equipment must be mounted vertically with a minimum of 3” air
space for condenser air return and supply. If necessary, equipment may be mounted at up to a 5
degree angle (rotary compressors) without damaging the compressor.
If air conditioner is to be shipped or transported at any time; pack in original packaging and strap to
pallet to prevent damage. Air conditioner must be kept upright at all times. Air conditioners are not
designed to be shipped attached to an equipment enclosure. Air conditioners shipped which have
internal damage due to shipping while attached to enclosures are warranty voided.
Unit Label
Each air conditioner has a unit label, be sure to record the data from the label to the template below
and keep this information in a safe place for warranty and ordering parts. To prevent damage to
equipment, electrical panel and wiring, and to prevent personal injury, assure that the power source is
compatible with the equipment before operating. When recharging, refrigeration type and amount
must be the same as shown on the unit label or air conditioner will not operate properly or may be
damaged and may result in the warranty voided and UL listing voided.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 5 | P a g e
Operation
Thermal Edge air conditioners will lower (or increase as necessary) the temperature inside an
enclosure to ensure its proper operational temperature. Our air conditioners, when sized properly, will
provide cooling or heating automatically controlled by the temperature digital controller.
Thermal Edge air conditioners operate as a “closed loop” system with no exposure or introduction of
outside air. This ensures that the enclosure is separated from and is not contaminated with ambient
air, dirt, chemicals, dust, moisture or foreign matter so that sensitive enclosure components are
protected and are kept at your required operational temperature.
An air conditioner is designed to dehumidify and extract heat from an area, or provide heat to an area.
The cooling is done using a simple refrigeration cycle. A product of this simple refrigeration cycle is
excess humidity that condenses to a liquid.
Thermal Edge air conditioners are designed using an advanced refrigeration cycle and are equipped
with a Condensate Removal System that changes the excess humidity liquid into a vapor which is then
vented to the atmosphere. In the event of excess water vapor where the enclosure door has been left
open there is an overflow hole on the bottom of every unit. Please contact Thermal Edge Inc. if you
encounter excess water coming from your air conditioner.
Preliminary Testing
Before mounting the air conditioner to the enclosure, test for proper operation. Follow the steps below
prior to installation.
WARNINGS
The air conditioner must sit upright for 24 hours to assure the compressor oil has drained down to the
compressor. Check the unit label to assure the electric power available to the air conditioner is the
proper voltage and phase. Check the electric power source for proper ground wire and neutral wire
installation per 2008 NEC. Assure that the electric power is protected by a circuit protection device;
refer to the Unit Specification section in this manual for proper circuit protection sizing.
Connect a power source to the air conditioner to start the evaporator fan and, if desired,
change the set point. Refer to Digital Temperature Controller Programming section on this
manual for details on changing the set point. Factory default settings should be satisfactory;
however you may want to adjust heat, cooling and alarm set points for your specific
application.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
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SP-E NG -210- 00 0- 06 R ev 2.2 6 | P a g e
The condenser fan is controlled by the refrigerant high heat pressure and will turn on later
when the operating pressure builds up. This feature allows low ambient operation and
reduces current inrush at initial power on.
Run the air conditioner for 15 minutes; during this time the condenser fan will turn on after the
condenser coil warms up. Note: Ambient Temperature must be at least 75°F.
Turn the unit off if the equipment makes any unexpected or hard mechanical noises or
vibrations and refer to the troubleshooting guide in this manual.
The supply cold air should be at least 10°F colder than the return air entering the unit. If it is
not, refer to the troubleshooting guide in this manual;
When you are satisfied that the unit is operating properly, turn unit off, disconnect the power
and mount the unit on the enclosure in accordance with the Mounting the Air Conditioner
section in this manual.
Mounting the Air Conditioner
Using the template supplied, determine where the air conditioner is to be mounted and assure that all
required cuts and holes will not interfere with or damage the enclosure or its contents. Assure that
there is a 3” clearance between walls / obstructions and the air conditioner for the condenser supply
air and return air flow so that it is not restricted. Restricted condenser air flow will affect the air
conditioner’s performance. Mount the air conditioner high on the enclosure in order to cool the hot air
in the top of the enclosure. Position the unit where the cold air can circulate across the width of the
enclosure to cool it all the way across.
Once proper mounting placement is determined, turn the enclosure equipment off, if possible, to
prevent damage. Drill and cut the holes as indicated on the mounting template. Install insulation
gasket as required to ensure an air tight closed loop seal. Be cautious not to let any cutting debris fall
into the enclosure.
Hang the air conditioner on the Easy Hang Tabs and from inside the enclosure use the fasteners
supplied to attach the air conditioner to the enclosure. Ensure that these fasteners are tight in order to
prevent the unit from falling off the enclosure. These fasteners should be checked periodically to
ensure that they have not become loose due to vibration.
The air conditioner is provided with a power cord or a power terminal block. Ensure that the power
supplied is compatible with the air conditioner’s power requirements. Properly connect the unit to a
power circuit that meets the equipment requirements and provide a circuit protection device based on
the Unit Specifications section of this manual. See Appendix A for Phoenix Contact power connector
instructions.
After mounting the air conditioner, replace/close the enclosure door and start air conditioner; test for
air leaks to assure a proper closed air loop seal and run test the unit to assure proper operation after
mounting. If any cold air leaks are found, check for proper mounting and apply silicone-free Lexel seal
if leaks persist. Assure that the air conditioner’s condenser inlet air filter is installed properly and
cleaned regularly.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 7 | P a g e
Mo de l
Oper ating
Vo ltage
Ra ng e
(V ol ts )
In ru sh
Curr en t
(Start
Up
Cu rr ent)
(A mp s)
Loading
Curr en t
(Running
Cu rr ent)
(A mp s)
SC CR
(Sho rt
Ci rc ui t
Cu rr ent
Rating)
(A mp s)
Re co mm en de d
Fu se S el ec ti on
(A mp s)
KV A Ra ti ng
(K-W at ts )
Re fr ig er an t
Ty pe
Re fr ig er an t
Am ou nt
(o un ce s)
Low/ High
Un it
Pr es su re s
(p si )
NE 02 01 26
110-120
16 .4 2
3. 76
*2
8 Am p Cl ass
CC , CC MR
Ti me Delay *
0. 5
R4 22d
10 .2 5
18 8 / 30 0
NE 02 02 36
220-240
13 .4 1
3. 07
*2
6 Am p Cl ass
CC , CC MR
Ti me Delay *
0. 7
R4 22d
9. 75
18 8 / 30 0
NE 02 04 86
440-480
4. 11
0. 93
160K
2 Am p Cl ass
CC , CC MR
Ti me Delay *
0. 5
R4 22d
10 .2 5
18 8 / 30 0
% of Amp ere Ra ti ng
Opening Time
110 %
15min Mi nimum
125 %
1hr Maximum
200 %
12sec Mi nimu m
4min Maximum
CAUTION
If mounting the air conditioner to the enclosure door, confirm with the enclosure manufacturer that the
door’s hinges will support the air conditioner’s added weight (see equipment specifications). Ensure
that when the door is fully open that the enclosure will not topple over due to the off-center load.
Unit Specifications
The following table provides electrical and refrigeration specifications for the NE020, NE030 & NE040
Series Air Conditioners.
NE020Series
Nominal Capacity Rating: 2,000 BTUH
Standard Maximum Ambient: 125°F
Unit Weight: 99lbs (120/230VAC) / 123lbs (480VAC)
* Time-delay F us es w ith the fol lo wing electrical characteristics are recommend ed. F ast -acting fus es
are not recommen de d.
*2
SCCR rating is based o n the SCCR rating for the circuit prot ec ti on device installed in the panel /
enclosure per UL50 & U L508a to protect the AC unit. Typicall y 100KA – 200KA for T im e-Delay Fuses.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 8 | P a g e
Mo de l
Oper ating
Vo ltage
Ra ng e
(V ol ts )
In ru sh
Curr en t
(Start
Up
Cu rr ent)
(A mp s)
Loading
Curr en t
(Running
Cu rr ent)
(A mp s)
SC CR
(Sho rt
Ci rc ui t
Cu rr ent
Rating)
(A mp s)
Re co mm en de d
Fu se S el ec ti on
(A mp s)
KV A Ra ti ng
(K-W at ts )
Re fr ig er an t
Ty pe
Re fr ig er an t
Am ou nt
(o un ce s)
Low/ High
Un it
Pr es su re s
(p si )
NE 03 01 26
110-120
23 .4 2
5. 15
*2
12 A mp C la ss
CC , CC MR
Ti me Delay *
0. 7
R4 22d
10 .2 5
18 8 / 30 0
NE 03 02 36
220-240
13 .6 5
3. 07
*2
7 Am p Cl ass
CC , CC MR
Ti me Delay *
0. 7
R4 22d
9. 75
18 8 / 37 5
NE 03 04 86
440-480
5. 86
1. 51
160K
3 Am p Cl ass
CC , CC MR
Ti me Delay *
0. 75
R4 22d
10 .2 5
18 8 / 30 0
Mo de l
Oper ating
Vo ltage
Ra ng e
(V ol ts )
In ru sh
Curr en t
(Start
Up
Cu rr ent)
(A mp s)
Loading
Curr en t
(Running
Cu rr ent)
(A mp s)
SC CR
(Sho rt
Ci rc ui t
Cu rr ent
Rating)
(A mp s)
Re co mm en de d
Fu se S el ec ti on
(A mp s)
KV A Ra ti ng
(K-W at ts )
Re fr ig er an t
Ty pe
Re fr ig er an t
Am ou nt
(o un ce s)
Low/ High
Un it
Pr es su re s
(p si )
NE 04 01 26
110-120
23 .4 2
5. 53
*2
12 A mp C la ss
CC , CC MR
Ti me Delay *
0. 7
R4 22d
10 .2 5
18 8 / 34 5
NE 04 02 36
220-240
13 .6 5
3. 07
*2
7 Am p Cl ass
CC , CC MR
Ti me Delay *
0. 7
R4 22d
9. 75
18 8 / 37 5
NE 04 04 86
440-480
5. 86
1. 51
160K
3 Am p Cl ass
CC , CC MR
Ti me Delay *
0. 75
R4 22d
10 .2 5
18 8 / 34 5
% of Amp ere Ra ti ng
Opening Time
110 %
15min Mi ni mu m
125 %
1hr Maximum
200 %
12sec Mi nimu m, 4 mi n Ma ximum
NE030 Series
Nominal Capacity Rating: 3,000 BTUH
Standard Maximum Ambient: 125°F
Unit Weight: 99lbs (120/230VAC) / 123lbs (480VAC)
NE040 Series
Nominal Capacity Rating: 4,000 BTUH
Standard Maximum Ambient: 125°F
Unit Weight: 99lbs (120/230VAC) / 123lbs (480VAC)
* Time-delay F us es w ith the following electrical ch aracteri st ic s are recommended. Fast -acting fus es
are not recommen de d.
*2
SCCR rating is based o n the SCCR rating for the circuit protect io n device installed in the panel /
enclosure per UL50 & U L508a to protect the AC unit. Typicall y 100KA – 200KA for T im e-Delay Fus es.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 9 | P a g e
Options
The NE020, NE030 & NE040 Series Air Conditioners may be ordered with the following options.
Review the list below for the specifications and functions of the option(s) that apply to your unit.
Built-in Heater
This unit is configurable to include a Built-in Heater to increase the temperature of your enclosure in
lower temperature conditions. The digital controller is programmed with an individual heater set point
to maintain your enclosure at your desired operating temperature.
Heater capacities are available in 500 Watt & 1000 Watt.
Default Settings:
55°F Heat Set Point
3°F Differential
At the default settings the heater turns on at 52°F and operates until temperature has reached 55°F.
Refer to Digital Temperature Controller Programming section for details on changing these
parameters.
Low Ambient
This option consists of circuitry to protect the compressor in a low ambient temperature environment.
The low ambient package is designed to provide an optimum constant low current in the compressor
motor during the non cooling state. This option provides internal heat to the compressor to protect it
from stalls and hard starts during long periods of compressor off state.
Dry Contact
This option provides an early warning capability to your enclosure to aid in the protection of your
expensive equipment. The Dry Contact is programmed with an individual dry contact set point to
monitor the enclosure temperature limit that you require. When the enclosure temperature has
exceeded the maximum limit, the Form C gold plated contact will activate to notify you that there is a
problem in achieving your cooling set point.
Default Settings:
105°F Dry Contact High Temperature Alarm Set Point
2°F Recovery Differential
3min Temperature Alarm Delay
At the default settings the Dry Contact initial conditions are normally open and/or normally closed.
When the unit is powered on and the temperature exceeds 105°F for a period longer than 3 minutes
the Dry Contact will activate. At this time the normally open contact will close and the normally closed
contact will open. This state will remain until the temperature has decreased to 103°F.
Note: The dry contact is not a power status indicator, rather a high temperature alarm alerting you that
the unit is unable to meet the cooling set point.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 10 | P a g e
Refer to Advanced Digital Temperature Controller Programming section on page 8 for details on
changing these parameters.
Celsius Programming
Celsius Programming option allows the user to control the Thermal Edge Air Conditioner in SI units.
This feature can be programmed into the digital temperature controller at time of manufacturing.
External Heat Output
This option allows you to add an external heater to be located anywhere in your enclosure. These
external heaters are ideal for focusing on individual sections of the enclosure without having a large
capacity Built-in Heater.
External Heater capacities available are 100 Watt, 150 Watt, 200 Watt, 250 Watt, 300 Watt,
400 Watt, 550 Watt, 650 Watt & 950 Watt
Default Settings:
At the default settings the heater output turns on at 52°F and operates until the temperature has
reached 55°F. Refer to Advanced Digital Temperature Controller Programming section on this manual
for details on changing these parameters.
Special Programming
All Thermal Edge Air Conditioners have a Special Programming option for selecting unique pre in
programmed settings for special requirements. Although most parameters are accessible in our digital
controller, this option allows you to receive a unit preset to your requirements without the need to
manually configure the unit. Refer to Advanced Digital Temperature Controller Programming section
for details on all default settings.
High Ambient
Most of our air conditioners have capabilities for high ambient application upgrades from our Standard
Maximum Ambient temperature of 125°F. With this option we can optimize the Air Conditioner during
manufacturing to achieve improved performance at high ambient conditions.
55°F Heat Set Point
3°F Differential
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 11 | P a g e
Open Door Kill Switch
This option provides you with an adjustable and mountable safety switch for your electronics
enclosure. This switch will disable power to the air conditioner when your electronics enclosure door is
open allowing you to work on your enclosure without the risk of unintentionally powering the unit.
Adjustable Temperature Probe
The adjustable temperature probe provides you with a 12’ temperature probe that can be installed
anywhere in your enclosure. This allows you to have the flexibility to monitor and maintain the
temperature at any specific location of your enclosure.
Ethernet/IP Controller Output
This option provides the ability to communicate with the Thermal Edge Air Conditioner controller via
the Ethernet/IP protocol. You can monitor and control all settings from a remote location with a PLC.
Full specifications will be provided with this option. For full details refer to the Ethernet/IP Option
Specifications included with the Air Conditioner.
Outdoor Option
When having our Programmable Digital Controller on the face of our Air Conditioner does not fit your
application, Thermal Edge offers the OD Package (i.e. Outdoor Option). This option moves the
controller into your enclosure using a 10’ cable along with a universal, 16 gauge powder coated steel
mounting bracket. The Air Conditioner will have no openings on the face of the unit. Below is partial
schematic showing the OD option wiring connections to the digital controller.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
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SP-E NG -210- 00 0- 06 R ev 2.2 12 | P a g e
System Faults
If any of the critical control parameters exceed limits, the compressor is turned off and an alarm
condition is indicated on the front panel.
There are three main conditions that can shut the AC compressor down:
The condenser high temperature alarm
The evaporator coil alarm
The compressor thermal overload
In the event that the condenser coil overheats, a condenser high temperature alarm, HA2, will flash on
the display of the digital temperature controller and the compressor will turn off after a 3 minute time
delay.
In the case that the evaporator coil ices up or there is a leak, an evaporator coil alarm, CA, will flash
on the display of the digital temperature controller and the compressor will turn off after a 2 minute
time delay.
A thermal overload protects the compressor against faults. In the event that the snowflake status LED
is not flashing on the display and the compressor is not running, an internal fault may have occurred
on the unit. Refer to the Troubleshooting Guide in this manual.
Digital Temperature Controller Programming
For the end user this section will provide all the necessary information to view and change all functions
and parameters available to you.
HOW TO SEE THE SETPOINT……..
1. Press and immediately release the SET key. The display will show the setpoint value.
2. Press and immediately release the SET key or wait for 15 seconds to display the enclosure temperature
again.
HOW TO CHANGE THE SETPOINT……..
1. Press the SET key for more than 2 seconds to change the setpoint value.
2. The value of the setpoint will be displayed and the “F” LED starts blinking.
3. To change the SET value, press the UP or DOWN arrow key within 15 seconds.
4. To store the new setpoint value, press the SET key again or wait 15 seconds.
Note: The set value is stored even when the procedure is exited by waiting for the time-out to expire.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 13 | P a g e
Fu nc tion
Oper ation
Pa ra me te r
Me nu
Location
Fa ct or y
De fault
Oper ating
Ra ng e
Un it
Co oling Setpoint
Se t De si red Co ol ing
Te mp erature
SET
Main
90
70 - 95
°F
Co oling
Differential
Co ntrol Hysteresis
Hy
Hi dden
Menu 1
5
1 - 45
°F
Co mp ressor
Pr otection
An ti s hort -c yc le d el ay
AC
Hi dden
Menu 2
5
0 - 50
mi n
Pr obed Displayed
Se lect D isplay Probe
P1 – E nclo sure Temperature
P2 – C ondenser Temperature
Lod
Hi dden
Menu 2
P1
P1 / P 2
N/ A
Au xiliary
Se tpoint
Se tpoint for D ry C on tact *1
/ Heater
SAA
Hi dden
Menu 2
105 / 55
-67 - 302
°F
HOW TO ACCESS HIDDEN MENU 1……..
1. Enter the Programming mode by pressing the SET + DOWN arrow keys simultaneously for 3 seconds.
The “F” LED starts blinking.
2. Select the required parameter by pressing the UP or DOWN arrow key. Press the SET key to display
its value.
3. Use the UP or DOWN arrow key to change its value.
4. Press SET to store the new value and move to the following parameter.
Note: The set value is stored even when the procedure is exited by waiting for the time-out to expire.
To exit: Press SET + UP arrow keys or wait 15 seconds without pressing a key.
HOW TO ACCESS HIDDEN MENU 2……..
Note: The set value is stored even when the procedure is exited by waiting for the time-out to expire.
1. Enter the Programming mode by pressing the SET + DOWN arrow keys simultaneously for 3 seconds.
The “F” LED starts blinking.
2. Release the keys, then push the SET + DOWN arrows keys simultaneously, again for more than 7
seconds.
The Pr2 label will be displayed immediately followed by the HY parameter.
3. Select the required parameter by pressing the UP or DOWN arrow key. Press the SET key to display
its value.
4. Use the UP or DOWN arrow key to change its value.
5. Press SET to store the new value and move to the following parameter.
To exit: Press SET + UP arrow keys or wait 15 seconds without pressing a key.
HOW TO LOCK THE KEYPAD……..
1. Press and hold the UP and DOWN arrow keys simultaneously for more than 3 seconds.
2. The POF message will be displayed and the keyboard will be locked.
At this point, it will be possible only to see the setpoint or the MAX or MIN temperature stored.
3. If a key is pressed for more than 3 seconds the POF message will be displayed.
HOW TO UNLOCK THE KEYPAD……..
1. Press and hold the UP + DOWN arrow keys simultaneously for more than 3 seconds until the Pon
Functions and Parameters
message is displayed.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 14 | P a g e
Fu nc tion
Oper ation
Pa ra me te r
Me nu
Location
Fa ct or y
De fault
Oper ating
Ra ng e
Un it
Au xiliary
Differ ential
He ater or Dry Contact
Hy steresis *1
Sh y
Hi dden
Menu 2
3
1 - 45
°F
Maximum
Te mp erature
Al arm
Al erts with “HA” when
ma xi mu m temperature has
been exceeded
AL U
Hi dden
Menu 2
105
45 - 302
°F
Minimum
Te mp erature
Al arm
Al erts with “LA” when
mi nimum temp erature has
been exceeded
AL L
Hi dden
Menu 2
45
-67 - 105
°F
Me ss ag e
Cause
Outputs
“P 1”
En clos ure Probe Failure
St art and stop o f the compressor after 15 minute
intervals *2
“P 2”
Co ndenser Probe Failure
No Output *2
“H A”
Maximum Temperature Alarm: P1 > 1 05 °F for 3
minutes (after initial 30 min. start up delay)
No Output *2
“L A”
Minimum Te mp erature Alarm: P 1 < 45 °F for 3
minutes (after initial 30 min. start up delay)
No Output *2
“H A2 ”
Co ndenser High Temperature Alarm: P2 > 145 °F for
3 minutes
Co mp ressor Off *2
“L A2 ”
Co ndenser Low Temperature Alarm: P2 < 50 °F for 3
minutes
No Output *2
“C A”
Ev aporator Coil Alarm: Low Pressure for 2 m inutes
Co mp ressor Off *2
“n oP ”
In valid Probe Selected: Low Evaporator Coil
No Output, Display Only
*1No te: Wh en b oth He at er a nd D ry C on ta ct o ptions are included , thes e pa rameters o nl y co nt rol He at er
Alarms Signals
Se tt ings. D ry Contact is controlled by ALU.
*2No te: Wh en b oth He at er a nd D ry C on ta ct o pt io ns a re inc lu ded, D ry Con tact (Alarm Contact) Relay is
acti vated.
ALARM RECOVERY……..
If the compressor is turned off due to an alarm, it will be able to restart after the AC anti short-cycle time delay.
(Parameter AC = 5minutes)
Probe alarm P1 is cleared with no time delay after the fault is cleared.
Probe alarm P2 starts and stops with no time delay.
Temperature alarm HA automatically clears as soon as the temperature returns to below 105°F (the ALU setpoint) -2°F = 103°F.
Temperature alarm LA automatically clears as soon as the temperature returns to above 55°F (the ALL setpoint) +2°F = 47°F.
Temperature alarm HA2 automatically clears as soon as the condenser coils temperature returns to below 135°F.
Temperature alarm LA2 automatically clears as soon as the condenser coils temperature returns to above 60°F.
Temperature alarm CA automatically clears as soon as the pressure returns to normal.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 15 | P a g e
Preventative Maintenance
Air conditioners require regular cleaning of the condenser air inlet filter. Wash filter often if washable
using proper cleaning compound and back flushing the dirt out, or replace if not washable whenever it
appears physically dirty. Restriction to the flow of air over the condenser coil will degrade the
performance of the equipment, cause it to overheat, reduce cooling and can damage the compressor.
The overload switch in the compressor may cause the compressor to cycle if the condensing coil
pressure becomes too high due to air restriction. A further safety feature is the refrigerant high
pressure cut off switch which will stop the compressor if the condensing pressure becomes too high
due restricted condenser air flow or some other cause.
Restricted air flow due to neglecting a dirty filter will cause unit to repeatedly turn off and then turn
back on after it cools off. An operation in this safety cycling mode will eventually damage the equipment and
void the warranty.
Refer to Field Serviceable Parts section in this manual for details on parts that can be changed to help
increase the uninterruptable life of the Air Conditioner.
Air Filter Service
Remove the air conditioner filter and wash if washable or replace if not washable. Dry thoroughly
before replacing. THERMAL EDGE Air Filter Treatment Spray in aerosol cans or spray bottle is
recommended to enhance air filter efficiency. Replacement filters are readily available from THERMAL
EDGE Customer Service. DO NOT operate the air conditioner without the air filter. Such operation will
allow the condenser coil to become dirty and loose efficiency, causing overheating and diminished
cooling capacity. Dirty condensing coils must be back-flush cleaned using proper commercial coil
cleaning compounds and thorough back-flush rinsing. Refer to directions on the cleaning compounds
selected. Acid wash is not recommended as it reduces the life of the coil.
Note: Do not use solvents to clean the programmable thermostat. Wipe with mild soap and water.
Condenser and Evaporator Fans
Thermal Edge air conditioners use high efficiency, long life, sealed ball bearing fans engineered for
optimum performance that require no maintenance. Keep fan blades clean for optimal performance.
Fans are removable and attached by plug in connections.
Compressor
Thermal Edge uses hermetically factory sealed compressors that are quiet, low vibration and are
maintenance free. Thermal overload devices are installed to protect the compressor from damage
due to overheat and short cycle faults. If the compressor thermal overload fails, it is recommended to
return the unit to Thermal Edge customer service for proper replacement. Note that the rotary
compressor runs with compressed refrigerant gas on the outer case and therefore is hot to the touch.
Loss of Refrigerant
Thermal Edge air conditioners are meticulously leak and run tested after assembly. If a leak in the
system should develop due to shipping damage or mechanical vibration, the leak must be detected,
repaired and the refrigerant charge restored to the system by a qualified refrigeration professional.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 16 | P a g e
Pa rt Des cr ip tion
Th er ma l Ed ge P ar t #
Digita l Controller
52110-1 f or 120VAC/ 48 0V AC
52112-1 f or 230VAC
52111-1 f or 120VAC/ 48 0V AC w / bo th D ry C a nd Hea te r
52111-2 f or 230VAC w/ both Dry C and Heater
Low Pressure S witch
38151-1
Hi gh P ressure Switch
38176-1
Co ndenser Fan Cut- In P re ss ur e Sw it ch
38001-1
Te mp erature Probe
52126-1
Co ndenser Fan Relay
55761-1 f or 120VAC/ 48 0V AC
55762-1 f or 230VAC
Th ermal Expansion Value TXV
NE 02 0 12 0V AC O nly = 32006- 1, N E0 20 2 30 VA C/ NE 03 0/ NE 04 0 = 32 00 2-1
Co mp ressor
NE 02 0 = 31520-1 f or 1 20 VA C/ 48 0V AC , 31570-1 for 2 30 VA C
NE 03 0/ NE 04 0 = 31525-1 f or 120 VA C/480V AC, 31570-1 for 2 30 VA C
Co mp ressor Thermal Overload
NE 02 0 = 31520- 2 for 12 0V AC /4 80 VA C, 3 15 70 -2 for 2 30 VA C
NE 03 0/ NE 04 0 = 31525- 2 fo r 120V AC /4 80 VA C, 3 15 70 -2 for 2 30 VA C
Ga sket Installation Kit
71401-N 23 4
Ev aporator Fan
41005-1 -1 f or 120VAC/ 48 0V AC
41005-2 -1 f or 230VAC
Co ndenser Fan
41025-1 -1 f or 120VAC/ 48 0V AC
41025-2 -1 f or 230VAC
Fi lt er Media
44 20 2 (12 pack)
Ca pa citor
54001-1
Field Serviceable Parts
Thermal Edge carefully designs and selects components with the maximum life expectancy. Due to
OEM manufacturing tolerances, poor unit maintenance or extreme operating conditions, components
may fail before their maximum life expectancy. The table below lists parts that are serviceable in the
field by an Air Conditioner Technician.
Safety Information
Unit is carefully designed to restrict access to movable parts to minimize any potential injury. This Air
Conditioner has been tested by UL to meet the safety requirements of the UL484 specification. When
working with the Thermal Edge Air Conditioner always makes sure shroud is installed. Verify proper
voltage is applied to unit as specified in the UL label of the Air Conditioner. In the event of a field
service repair, power down unit using the power on/off switch and disconnect power from unit. It is
always recommended to use a licensed Air Conditioner Technician for internal diagnostics and repairs
issues.
Contact Thermal Edge technical support for further details on opening the unit and troubleshooting
tips.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 17 | P a g e
Un it Will Not Run
Is Uni t
Co nnec ted?
YES
NO
Pl ease Con nect
Po wer
Ve ri fy Power O n/ Of f
Sw itch is on p osition
ON
OFF
To gg le S witch
then Retry
Ve ri fy input power
me ets voltage
requ irements as
sh own in the UL label
YES
If probl em is still pr esent contac t
technical support
Un it Overheats /
In su ff icient C oo li ng
Is F il ter
Cl ean?
NO
Cl ean / Replace
Fi lt er
YES
Ar e Condenser &
Ev aporator Fans ON?
NO
Ch eck fo r Faulty
Fa n & replace
YES
Is C ondenser
Co il d ir ty?
YES
Cl ean Co il
NO
NO
Is E vaporator Coil
Fr ozen / Iced?
YES
Po tentia l Bad
Ev aporator Fan,
chec k for faulty
fan.
NO
Co ntac t Qualified Refrigeration Service
Te chni cian to ch eck Refrigerant Pressure. Un it
ma y have a refrigeration leak. If problem is not
resolved contact technical s up po rt.
Troubleshooting Guide
The following guide provides a flow chart to identify a problem, determine the root cause and identify
the action needed to correct an issue.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 18 | P a g e
Un it Not Cooling
Is C om pressor
On?
YES
NO
Ch eck
Se tpoint. Is
Se tpoint
below
am bi ent?
YES
NO
Is snowfla ke
LE D li t on
contro ller?
Se t Se tpoint between
70 to 95 deg F
YES
NO
Is evaporator
Fa n on?
YES
NO
Is there voltage to
compressor? Use
3
Ch eck fo r faul ty
3
Measure Temperature at Evap orator
& Ve ri fy Heat Load Requirements. Is
un it capacity adequate for internal
head load? Possible low refrigeran t.
Is compr essor
thermal overload
open? Use ohm
me ter.3
Ch eck fo r error code
C A, LA ,H A, LA 2, HA 2,
P1 , or P 2
YES
NO
Ch eck contactor
circui t. D oes it have
power?3
NO
YES
Refer to Alarm Signals
in D ig ital Temperature
Co ntroller
Pr og ramm ing Section
Co ntac t Customer
Su ppor t
NO
YES
Ve ri fy con tact coi l is
being ac ti vated. Che ck
connectivity3, if i ss ue
pers ists c om ponent
replacement may be
needed.
Co ntac t
Cu stomer
Su ppor t
YES
NO
YES
Co ntac t Customer
Su ppor t
Replace Thermal
Overload.
*3N ot e: R ef er t o El ec tr ic al S ch em at ic s fo r fu rt her diagno st ics.
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
SP-E NG -210- 00 0- 06 R ev 2.2 19 | P a g e
Fl as hing Err or
Codes
Si ng le or
Multiple
Co des?
2 +
1
Refer to Alarm Signals
in D ig ital Temperature
Co ntroller
Pr og ramm ing Section
P1 / P 2
combination
flas hing?
YES
NO
Po tentia l bad
connection. Check
gr een connecto r
behind c ontroller.
CA
YES
NO
Ch eck Low Pressure
Sw itch Connections
an d Verify Pressure
sw itch i s clos ed. Use
me ter.
3
P1 o r
P2
NO
YES
Ch eck probe
connections, potential
faul ty probe.
LA , LA 2, H A,
HA2
YES
Refer to Alarm Signals
in D ig ital Temperature
Co ntroller
Pr og ramm in g Se ction
Fu se / C ircuit
Pr ot ec tion
Nu isance Trip
Is fus e open ing as
soon as un it turns
on?
NO
YES
Ch eck incoming power
su pply and connections
for po tentia l sh or t circui t
Does fus e open
wh en compressor
star ts?
YES
NO
Ch eck electrical specification.
Ve ri fy proper recommended fuse
ha s been selected.
Ch eck compressor, if excess heat present compressor may
be faulty. Contact Technical Support.
*3N ot e: R ef er t o El ec tr ic al S ch em at ic s fo r fu rt her diagnostics.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 20 | P a g e
Wa te r ov er fl ow /
ex ce ss iv e
Ch eck drain, is it
plugged?
YES
NO
Cl ean condensate pan and
drain; add 1 tbsp bleach to
up per pan monthly to kill
Is A ir Condi ti oner sealed
ag ai nst enclosure
properly, tightly sealed
an d do or closed?
YES
Co ntac t Customer Service
NO
En sure air t ig ht
seal between air
cond it ioner and
enclosure. Make
su re door is
clos ed.
Physical Dimensions
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 21 | P a g e
THIS PAGE IS INTENTIONALLY LEFT BLANK
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 22 | P a g e
Electrical Schematics
System Schematic
Digital Controller Schematic
Note: Schematics apply to all voltages; optional accessories wiring not provided in this document. If you
require electrical schematic with options contact our technical support and provide your model number.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
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SP-E NG -210- 00 0- 06 R ev 2.2 23 | P a g e
Warranty Information
Thermal Edge products are warranted to be free of defects in workmanship, materials and components.
The warranty period applies from date of shipment for one year.
The above warranty applies when the equipment is operated under the following conditions:
Ambient temperature not in excess of performance rating in normal atmosphere or as stated on
product nameplate
Voltage variation no greater than ± 10% from nameplate rating
Frequency variation no greater than ± 3Hz from nameplate rating
Maximum cooling load no higher than air conditioner nameplate rating
Waiting five minutes before restarting air conditioner after intentional or accidental shutoff
Compliance to all other installation, maintenance and operating instructions, as supplied
Thermal Edge cannot assume responsibility for misapplication of its products or the erroneous selection of
an inappropriate product by a non-authorized Thermal Edge representative. Our applications engineers
will gladly assist in the selection of the proper product provided all required details of the application are
furnished.
Thermal Edge assumes no liability beyond the repair or replacement of its own product. This Warranty
does not cover:
Labor or reimbursement of labor for evaluation, removal, installation, repair, or cost of any
warranted part, except at the Thermal Edge factory in Dallas, Texas
Use of equipment for other than its designed purpose or operating conditions
Operation in harsh, oily, corrosive or other abnormal environmental conditions, without the proper
filtration, sealing, protective coatings and/or weather protection
Damage to hermetic system resulting from continuous operation with dirty or clogged air filters or
improper or negligent maintenance
Use of refrigerant other than designated
Customer modification or abuse
Shipping damage or other accident
Repair or service by unauthorized personnel.
Cracked or broken hermetic tubing or brazed joints caused by shipping damage or mishandling are not
covered under the Warranty. Claims for shipping damage are the responsibility of the Consignee. Timely
claims must be filed with the freight carrier.
The purchaser assumes the responsibility of grounding the unit and installing it in accordance with local
electrical and safety codes, as well as the 2008 National Electric Code (NEC) and OSHA.
THIS WARRANTY CONSTITUTES THE ENTIRE WARRANTY WITH RESPECT TO THE PRODUCT AND
IS IN LIEU OF ALL OTHERS, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF
MERCHANTABILITY AND WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE AND IN NO
EVENT IS THERMAL EDGE RESPONSIBLE FOR ANY CONSEQUENTIAL DAMAGES OF ANY NATURE
WHATSOEVER.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 24 | P a g e
Return Material Authorization (RMA) Procedure
All returns require a Return Material Authorization (RMA) number for warranty or non-warranty repair, rotation
of stock, damage or any other reason.
IMPORTANT
Returns without an RMA number will be refused and returned. Improper packaging may void
warranty. Air Conditioners shipped laying down will void the warranty. Collect shipments will be
refused. Returns received after 60days will be refused and RMA will be canceled.
Please be ready to provide:
Purchase Order Number & Date
Product Description & Reason for Request
Model Number & Serial Number
Customer name and contact info (email, phone number and address)
Shipping method
Pack unit in a suitable packing for shipment, preferably the original packaging if available.
If suitable packing is not available, arrange for packaging to be shipped to you.
Air Conditioners must be returned in an upright position properly secured to a pallet.
Tip unit to empty water from the evaporator and boil off pans.
Clearly mark the RMA number on the box.
Customer will pay all freight charges.
Out of Warranty Repair
If your Thermal Edge air conditioner is out of warranty and requires repair, simply call Thermal Edge Customer
Service at (888)-580-0202 for an RMA number. Customer Service will help you determine what repairs or
parts are needed and, if possible, an estimate of the cost.
After the unit is received and diagnosed, you will receive a ship estimate on the work and parts needed. The
repairs and test process may uncover other issues for which you will be informed and given quotes for the
work needed.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 25 | P a g e
Assembly channels
1. Line1
2. Line2
3. Empty
4. Ground
TOP
FRONT
Connecting Sequence: LEFT TO RIGHT
1
2
4
Appendix A
Phoenix Contact Power Connector Instructions
Scope: Instructions for connecting power wires to air conditioners equipped with a “Phoenix Contact” power
connector.
1 - Remove cover from chassis using T25 Torx bit.
2 - Push both orange tabs in to release male
connector and pull out for wire connection.
3 - The top of the male connector is shown with the
formed assembly channels facing UP.
4 - Starting from the left, connect the wires by
inserting them into the lower receptacles located
on the front of connector in the following order.
NOTE: If using stranded wires, it may be difficult to
insert into the receptacles without releasing the
spring tension as described below in the removal
instructions. The wires can be tinned or pin
terminals (as shown above) or pin ferrules may be
attached to stranded wires to ease insertion into
the receptacles.
5 – Firmly insert the male connector into chassis
receptacle. A light click should sound when
secured.
6 – If wires need to be removed from the male
connector, insert a small screwdriver or pick into
the hole directly above each wire and push to
release it.
1751 Hurd Dr ive ● Irving, Texas 75038 ● (972) 580-0200 ● ( 888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email: support@thermal-edge.com
SP-E NG -210- 00 0- 06 R ev 2.2 26 | P a g e
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