Delta Electronics HEX060PA User manual

HEX060PA Heat Exchanger
Instruction Manual
USA
46101 Fremont Blvd, Fremont, CA 94538, U.S.A. TEL : [phone]
FAX : [phone]
[e-mail]
Taiwan
Delta Electronics, Inc.
252, Shang Ying Road, Kuei San District TEL : [phone]
Taoyuan City 33341, Taiwan, R. O. C. FAX : [phone]

Table of contents
1. Version.........................................................................................................1
2. Description...................................................................................................1
2-1. General................................................................................................1
2-2. Specification.......................................................................................1
2-3. Environmental condition...................................................................2
3. Installation ...................................................................................................2
3-1. Outline drawing..................................................................................2
3-2. Mounting panel cutout and waterproof foam sticking ....................3
4. Electrical specification................................................................................3
4-1. Connection and LED indicator (on HEX panel)................................3
4-2. Standalone control mode...................................................................4
5. Mechanical feature......................................................................................5
5-1. Thermal path and Airflow baffle .......................................................5
5-2. Configuration.....................................................................................6
6. Maintenance and Replacement..................................................................6
6-1. Maintenance.......................................................................................6
6-2. Replacement......................................................................................8
7. MTBF and Reliability...................................................................................8
7-1. MTBF...................................................................................................8
7-2. Relibability .........................................................................................8
8. Safety............................................................................................................9
9. General Safety and Warnings.....................................................................9

HEX060PA Heat Exchanger Instruction Manual
Page 1
1. Version
Rev. Description Drawn Approved Issue date
00 Issue spec. Nick Wang Adam Chen 2016/1/25
01 Add section 9 Nick Wang Adam Chen 2016/6/10
2. Description
2-1. General
Delta Heat Exchanger (HEX) is designed for direct air to air heat
exchange to remove the heat from the cabinet.
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.
2-2. Specification
Main feature Unit Model Number
HEX060PA
Outline Dimension (H x W x D) mm
(in) 850 x 500 x 148 (33 x 20 x 6)
Cooling Capacity (*Note 1) W/K (W/℉) 60 (33)
Rated Voltage VDC 48
Rated Current (*Note 2) A 2.9
Operating Voltage Range VDC 40 - 60
Operating Current A 0.55
Operating Power Consumption W 27
Acoustic Noise at 1.5M (SPL) dB-A 62.0 dB-A
Weight Kg (Lb) 17 (37)
* Note1 : The cooling capacity (W/K , W/°C or W/℉) is defined as Q/ (TI-TA)
Q : Heat dissipation (W) from inside of cabinet
TI : Return temperature of internal air circuit (K , °C or ℉)
TA :Ambient temperature of external air circuit (K , °C or ℉)
*Note 2 : Rated current is announcement of safety

HEX060PA Heat Exchanger Instruction Manual
Page 2
2-3. Environmental condition
Description Specification
Operating
temperature
-10°C ~ +65°C (-14°F ~ 149°F)
Storage
temperature
-40°C ~ +70°C (-40°F ~ 158°F)
Humidity External air circuit: 0 ~ 100% RH
Interna
l air circuit: 0 ~ 90% RH,
Ingress protection
(on external side)l IEC60529 IP55 (NEMA 3) GR-487 720hrs salt spray
3. Installation
3-1. Outline drawing
(1) Material : SGCC sheet t=1.0mm
(2) Finish : Power paint , Color RAL7032
(3) Dimensional tolerance : ± 1mm [0.04”]

HEX060PA Heat Exchanger Instruction Manual
Page 3
3-2. Mounting panel cutout and waterproof foam sticking
View from internal side
TOLERANCE : ± 0.5MM[±0.02"]
4. Electrical specification
4-1. Connection and LED indicator (on HEX panel)
Connection
Dry contact max. rating : 60VDC/400mA
User can select dry contact definition both normal open (N.O.) or normal
close (N.C.) themselves for alarm output that is shown as next page

HEX060PA Heat Exchanger Instruction Manual
Page 4
Definition N. O N. C
Connection Pin 3 , 4 Pin 5 , 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 is locked CLOSE OPEN
LED indicator
Fan NTC sensor
Normal GREEN GREEN
Abnormal or failed RED Blinking RED
4-2. Standalone control mode
HEX can detect ambient temperature to control cooling capacity .
Internal fan and external fan speed default settings are shown below
Full speed : 3200 RPM ± 10%
Half speed : 1450RPM ± 200RPM

HEX060PA Heat Exchanger Instruction Manual
Page 5
5. Mechanical feature
5-1. Thermal path and Airflow baffle
With forced convection using the axial fan, warm air generated by the
equipment will be blown into the internal return opening and pass though
the HEX, then flow out from internal supply opening. The air supply of the
cold air will be used to cool down the system; On the opposite side, cooler
air from the surrounding environment will be drawn in from the external air
inlet side , and push the heat of the HEX out from the external air exhaust
side. The thermal exchange path is shown in the next page .

HEX060PA Heat Exchanger Instruction Manual
Page 6
5-2. Configuration
6. Maintenance and Replacement
Be sure to SHUT DOWN the power before proceeding with any
maintenance or component replacement
6-1. Maintenance
Monthly
Use brush and low pressure air to remove dust or any debris
on both internal/external air inlet and air outlet opening .
Item Q'ty Description
1 1 Chassis assy
2 1 Frame assy
3 1 Controller
4 1 Internal fan
5 1 External fan
6 1 Heat exchange
CORE
7 1 Internal plate assy

HEX060PA Heat Exchanger Instruction Manual
Page 7
Quarterly
User can follow below sequence to proceed the maintenance .
Internal loop maintenance :
* The maintenance is from internal side .
* Use screw driver to remove the secured screw on upper
portion of chassis assy (Item 1) .
* Disassemble the internal plate assy (Item 7) and disconnect
fan from controller (Item 3) , Note to record the connection
location .
* Use brush and low pressure air to remove dust on
internal plate assy (Item 7) , internal fan (item 4) & heat
exchange CORE opening .
* Hold internal plate assy (Item 7) and connect fan to
controller (Item 3) .
* Re-attach internal plate assy back (Item 7) and use screw
driver to secure screw with chassis assy (Item 1) .
External loop maintenance :
* The maintenance is from from internal side .
* Use screw driver to remove the secured screw on upper
portion of chassis assy (Item 1) .
* Disassemble the internal plate assy (Item 7) and disconnect
fan from controller (Item 3) . Note to record the connection
location .
* Remove frame assy (Item 2) carefully to avoid waterproof
foam between around fame assy (Item 2) and chassis assy
(Item 1) to be damaged .
* Use brush and low pressure air to remove the dust on
external fan (Item 5) & heat exchange CORE opening .
* Please check waterproof foam whether had damaged
before secure frame assy (Item 2) back , if yes , please
remove damaged and stick new waterproof foam first .
* Hold internal plate assy (Item 7) and connect fan to
controller (Item 3) .
* Re-attach internal plate assy back (Item 7) and use screw
driver to secure screw with chassis assy (Item 1) .

HEX060PA Heat Exchanger Instruction Manual
Page 8
Test Power on and follow LED status to check that HEX has
resumed to normal function after maintenance .
6-2. Replacement
Delta HEX is designed with dry contact alarm output and LED
indicator on panel shown below to describe abnormal situation .
Refer to Section 4-1 for checking abnormal part is internal fan ,
external fan or controller for abnormalities .
In cases of parts abnormality , Delta will follow the reading and submit
spare part(s) below for replacement .
Internal fan P/N : AFB1548EH-BJ51
External fan P/N : AFB1548VH-CE1L
Controller P/N : HEX060PA-000C
User can then refer to maintaince sequence on previous page , or
request Delta authorized support for assistance .
7. MTBF and Reliability
7-1. MTBF
L10 Fan life is expected to be a minimum 80,000 hours continuous
operation at 40°C with 15 ~ 65%RH .@ label rated vo ltage
7-2. Relibability
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 (NEMA 3)
GR-487 720hrs salt spray
Package bump IEC 60068-2-29

HEX060PA Heat Exchanger Instruction Manual
Page 9
8. Safety
9. General Safety and Warnings
* Some electronic parts have a high operating temperature .
Use caution at all times.
* Incorrect installation may cause damage and/or injury.
* Installation and maintenance should be performed only by qualified
personnel . Use caution at all times.
* Ensure the grounding wire is connected before powering on the system.
* Ensure the cover and the mounting hardware are secure upon installation.
* All the cables connected to the unit must confirm to UL standards.