Delta HEX070PB User manual

Specification and Manual
Customer :
Description : Heat Exchanger 70 W/K
Customer Part No. : Rev.:
Delta Model No. : HEX070PB Rev : 02
Sample Date Code:
Sample Issue Date : Jun.03.2020
DELTA ELECTRONICS, INC.
252, SHANGYING ROAD, GUISHAN INDUSTRIAL ZONE, TEL : [phone]
TAOYUAN CITY 33341, TAIWAN FAX : [phone]
Please send one copy of this specification back after
you signed approval for production pre-arrangement
Approved by :
Date :

ME EE CE
00 ISSUE SPEC. 汪則鑫 12/11'19 汪則鑫 12/11'19 涂雅森 12/11'19 ------ 陳加偉 12/11'19 --
01 Revise Rated Current (3.8A→4.6A) 鄭誌雲 01/22'20 鄭誌雲 01/22'20 涂雅森 01/22'20 ------ 陳加偉 01/22'20 --
02 Remove section 7 陳俊堯 06/03'20 陳俊堯 06/03'20 涂雅森 06/03'20 ------ 莊德財 06/03'20 --
ISSUE
DATE
*** SAMPLE HISTORY***
DRAWN APPROVEDDESCRIPTIONREV.
CUSTOMER :
CUSTOMER P/N :
DELTA MODEL : HEX070PB
CHECKED
PAGE 1 OF 1 History-000

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Table of content
Description......................................................................................................................................... II
Packing & Shipping .......................................................................................................................... II
Safety Notes ...................................................................................................................................... II
1.Product Instruction .................................................................................................................... 1
1-1. General Description .......................................................................................................... 1
1-2. Main Feature & Model Number ....................................................................................... 1
1-3. Dimension ........................................................................................................................... 2
1-4. Mounting Panel Cutout ..................................................................................................... 3
1-6. Configuration & Maintenance .......................................................................................... 4
1-7. Thermal and Airflow .......................................................................................................... 5
2. Electrical specification .................................................................................................................. 6
2-1. Indicator & Connector (HEX panel side) ....................................................................... 6
2-2 Standalone control mode .................................................................................................. 7
3.Environmental Condition .......................................................................................................... 8
3-1. Operating Temperature .................................................................................................... 8
3-2. Storage Temperature ........................................................................................................ 8
3-3. Operation Humidity ........................................................................................................... 8
3-4. Ingress Protection Rating ................................................................................................. 8
4.Reliability Table .......................................................................................................................... 8
5.Safety Certification .................................................................................................................... 8
6.Installation Notice ...................................................................................................................... 9
7.Reclaim ....................................................................................................................................... 9

II
Description
This document is an installation and the characteristics of Delta HEX070PB. Before installing the unit,
please read this manual thoroughly, and following the instructions contained in it. The document is the
exclusive property of Delta Electronics, Inc. it should not be distributed, reproduced, or any other format
without prior permission of Delta. Specifications are subject to change without notice.
Packing & Shipping
HEX is a precision instrument, it should be handled or transported with care, do not stand on the box,
or place heavy objects on it. Please pay attention to the following icons on the package.
Safety Notes
Please read the safety notes carefully before installing HEX unit and be sure to install it correctly.
After completing the installation, make sure that the unit operates properly during the start-up operation.
Meaning of WARNING and CAUTION notices:
Warning:
Failure to follow these instructions properly may result in personal injure or loss life.
Caution:
Failure to observe these instructions properly may result in property damage or personal injury, which
may be serious depending on the circumstance.
Warming:
1. Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable
codes, standards and national wiring regulations.
2. Use this unit only in the manner intended by the manufacturer. If you have questions, please contact the
manufacturer.
Install the HEX in accordance with the instructions in this installation manual. Improper installation may result
in water leakage, electric shocks or fire.

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3. Make sure that all wiring is secured, the specified wires are used, and there is no strain on the terminal
connections or wires.
4. If refrigerant gas leaks during installation, ventilate the area immediately. Do not directly touch refrigerant
that has leaked from refrigerant pipes or other areas, as there is a danger of frostbite.
5. Before serving or cleaning unit, switch power off and disconnect power supply.
6. When cutting or drilling into wall or ceiling, do not damage electrical wiring or hidden utilities.
7. Be sure to use only the specified accessories and parts for installation work.
8. This appliance is intended to be used by expert or trained users in shops, in light industry and on farms,
or for commercial use by lay persons”.
Caution :
1. Install the HEX on a wall/ door strong enough to withstand the weight of the unit.
2. Do not allow a child to mount on the outdoor unit or avoid placing any object on it.
3. Do not block air inlets or exits.
4. Do not install the HEX at any place where there is a danger or flammable gas leakage.
5. To avoid injury, do not touch the air inlet or aluminum fins of unit.
6. Watch your steps at the time of fin cleaning or HEX inspection.
7. Do not topple the HEX while moving or storage.
8. The appliance is not to be used by persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction.
9. Children being supervised not to play with the appliance.

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Specification for Approval
Customer :
Description : Heat Exchanger 70 W/K
Customer P/N : Rev. :
Delta model no. : HEX070PB Rev. : 02
Sample revision. : Date Code :
Sample issue date : Quantity :
INTERNAL EXTERNAL

Part no. :
Delta model no. : HEX070PB
Page 1
1. Product Instruction
1-1. General Description
The Heat Exchanger (HEX) is designed for direct air to air heat exchange to remove the
heat from the cabinet, and there is designed for IP55 sealed outdoor telecom cabinet to provide
stable and optimum internal conditions for equipment and avoid hotspot inside the cabinet. It is
easy to be installed in the cabinet with the nuts.
The internal and the external air circulation loops of the HEX are separated to prevent the
introduction of dust, humidity and dirt. The fan on the external air loop conforms to IP55
protection rating.
1-2. Main Feature & Model Number
Dimensions, Weight & Mounting method
Dimension (H x W x D) (without flange) mm 940 x 490 x 100
Application N/A Outdoor
Weight Kg 17.5 (ref)
Mounting Method N/A Door /Side
Environmental Protection & Performance
Operating Temperature Range °C -10 to +65 (ice-free)
Protection for Dust ,Wind and Water
(External) IEC 60529 IP55
Noise (1.5m) dB-A 65
Operational Data
Operation Voltage Range VDC 40 – 60VDC
Rated Voltage VDC 48VDC
Rated Cooling Capacity W/K 70
Rated Current A 4.6
Operation Cooling Current A 2.5
Power consumption W 221
*Note 1 : The cooling capacity (W/K or W/°C) is defined as Q / (TI – TA)
Q : Heat dissipation (W) from inside of cabinet
TI : Return temperature of internal air circuit (K OR °C)
TA : Ambient temperature of external air circuit (K OR °C)

Part no. :
Delta model no. : HEX070PB
Page 2
1-3. Dimension
(1) Material: Case SPCC sheet t=1.0mm.
(2) Finish: Power paint 75um(min.), Color: RAL7035
(3) (2) Dimensional Tolerance: ± 1.0mm [0.04”]

Part no. :
Delta model no. : HEX070PB
Page 3
1-4. Mounting Panel Cutout
TOLERANCE : ± 1MM

Part no. :
Delta model no. : HEX070PB
Page 4
1-6. Configuration & Maintenance
Make sure the HEX surface sealed with mounting flange to avoid water penetrates into shelter
through mounting interface. It is suggested to use gaskets sticking on the mounting flange and seal the
gap between flange and cabinet with silicone gel during installation. There should be NO any gap surround
gaskets to avoid water penetrates into enclosure.
In order to assure the HEX running at optimal condition, the condenser should be cleaned once
annually at least; user can clean the condenser with water directly. The external side fan blade can also
be cleaned with normal pressure water if there is dust accumulation. Please do not use strong water jet to
impact the center of fan and the surface of condenser.
The bottom hole of the heat exchangers is used for drainage, please clear drain holes when the
maintenance. Please also notice that following:
1. Check wires are connected correctly, and the insulation is not cracking or broken.
2. Do not wipe the product with organic solvent, volatile substances like toluene or gasoline, it will
destroy the powder-coated surface.
3. Turn off the power before maintaining.
4. Please turn off power and remove dry contact connector while non-operating for a long time.
5. If any abnormal acoustic noise from HEX happened, please turn off the product and contact with
customer services.
NO. Q'TY DESCRIPTION
1 1 Chassis assy
2 2 Frame assy
3 1 Controller
4 1 Heat exchange CORE
5 1 Internal fan
6 1 Internal plate assy
7 1 External fan
8 1 External plate assy

Part no. :
Delta model no. : HEX070PB
Page 5
1-7. Thermal and Airflow
The internal and external air flow circulation is shown as the figure. Through separated mechanism
design, internal and external air flow won’t be mixed since the waste heat can be dissipated from the
cabinet to the ambience. Internal temperature sensor is placed at return air stream to provide reliable
temperature measurement and safety of operation.
While on the opposite side, cooler air from the out environment will be drawn from the external air
inlet side and bring the heat of the HEX out from the external air exhaust side.

Part no. :
Delta model no. : HEX070PB
Page 6
2. Electrical specification
2-1. Indicator & Connector (HEX panel side)
Dry contact : (contact max. rating : 60VDC/400mA)
User can select dry contact definition both normal open (N.O.) or normal close (N.C.)
for alarm output
Normal open Normal close
Connection Pin 3 & Pin 4 Pin 5 & Pin 4
Control board, NTC and fan are in
normal status OPEN CLOSE
Power-off or control board is disabled CLOSE OPEN
NTC resistance is over range such as
“open circuit” or “short circuit” CLOSE OPEN
Fan speed is lower than 50% of
definition or fan locked CLOSE OPEN
LED indicator :
Fan NTC sensor
Normal GREEN GREEN
Abnormal or failed RED Blinking RED
Over oper. temp. (<-10℃ or >+65℃) GREEN Blinking RED

Part no. :
Delta model no. : HEX070PB
Page 7
2-2 Standalone control mode
HEX can detect temperature inside of cabinet to control cooling capacity .
Full speed : 3150 RPM ± 10%
Half speed : 1450RPM ± 200RPM

Part no. :
Delta model no. : HEX070PB
Page 8
3. Environmental Condition
3-1. Operating Temperature
-10 °C ~ +65 °C (14 °F ~ 149 °F)
3-2. Storage Temperature
-40 °C ~ +70 °C (-40 °F ~ 158 °F)
3-3. Operation Humidity
External air loop: 0 ~ 100 % RH
Internal air loop: 0 ~ 95 % RH, non-condensing
3-4. Ingress Protection Rating
IP55 (IEC60529) on external side
4. Reliability Table
5. Safety Certification
Test item Condition
High temperature IEC 60068-2-2
Low temperature IEC 60068-2-1
High temp. / High humidity IEC 60068-2-14 test Nb
Temperature cycle IEC 60068-2-3
Vibration ETSI 300 019-1-4 CLASS 4.1
Ingress protection (external side) IEC 60529 IP55
GR487
Package bump IEC 60068-2-29

Part no. :
Delta model no. : HEX070PB
Page 9
6. Installation Notice
Check the surrounding obstacles to make sure the product get enough space for air circulate.
7. Reclaim
At the end of the unit working life, the produce must not be disposed of as urban waste. It must be
taken to a special local authority differentiated waste collection center or to a dealer providing this service.