Delta HEX080PD Series User manual

HEX080PD series
Dimension drawing
Features Unit
◆IP55 waterproof at external side mm
(in)
◆Standalone temperature control W/K (W/℉
)
◆RS-485 function VDC
◆Clear LED status indicator A
◆Dry contact alarm output W
VDC
Design °C
◆Air to air heat exchange dB-A
◆Rated voltage at 48V Kg (Lb)
◆High efficiency and reliable fan
◆Easy installation and maintenance
Main feature Specification
Dimension (H x W x D) 950 x 450 x 150
(37 x 18 x 6)
Cooling capacity
*Note
80 (44)
Rated voltage 48
Operating current 2.2
Opearting power 106
Operating voltage range 40 ~ 60
Operating temperature range -10 ~ +65
Noise (1.5 meter) 65.0
* Specifications are subject to change without notice.
Weight 19 (42)
* Note : The cooling capacity (W/K , W/°C or W/℉) is defined as Q/ (T
I
-T
A
)
Q : Heat dissipation (W) from inside of cabinet
T
I
: Return temperature of internal air circuit (K , °C or ℉)
T
A
: Ambient temperature of external air circuit (K , °C or ℉)
Internal Door mount

HEX080PD Heat Exchanger
Instruction Manual

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 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.......................................................................................7
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

HEX080PD Heat Exchanger Instruction Manual
Page 1
1. Version
Rev. Description Drawn Approved Issue date
00 Issue spec. Nick Wang Adam Chen 2015/4/13
01 Correct spec. Nick Wang Adam Chen 2016/1/25
02 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 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
HEX080PD
Outline Dimension (H x W x D) mm
(in) 950 x 450 x 150 (37 x 18 x 6)
Cooling Capacity (*Note 1) W/K (W/℉) 80 (44)
Rated Voltage VDC 48
Rated Current (*Note 2) A 4.7
Operating Voltage Range VDC 40 - 60
Operating Current A 2.2
Operating Power Consumption W 106
Acoustic Noise at 1.5M (SPL) dB-A 65.0 dB-A
Weight Kg (Lb) 19 (42)
* 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

HEX080PD 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
Internal 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”]

HEX080PD Heat Exchanger Instruction Manual
Page 3
3-2. Mounting panel cutout and waterproof sticking
TOLERANCE : ± 0.5MM [0.197]
View from internal side
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

HEX080PD 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 : 3150 RPM ± 10%
Half speed : 1450RPM ± 200RPM

HEX080PD Heat Exchanger Instruction Manual
Page 5
5. Mechanical feature
5-1. Thermal path and Airflow baffle
With forced convection using the centrifugal 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 figure on next
page .

HEX080PD 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 .
Item Q'ty Description
1 1 Chassis assy
2 2 Frame assy
3 1 Controller
4 1 Internal fan
5 1 External fan
6 1 Heat exchange CORE
7 1 Internal plate assy
8 1 External plate assy

HEX080PD Heat Exchanger Instruction Manual
Page 7
6-1. Maintenance
Monthly
Use brush and low pressure air to remove the dust or any debris on
both internal/external air inlet and air outlet opening .
Quarterly
Follow below maintenance sequence
Internal loop maintenance :
* The maintenance is from internal side .
* Use screw driver to remove 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 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 (Item 7) and use screw driver to
secure screw with chassis assy (Item 1) .
External loop maintenance :
* The maintenance is from internal side .
* Use screw driver to remove secured screw on bottom
portion of chassis assy (Item 1) .
* Disassemble the external plate assy (Item 8) much
carefully to avoid waterproof foam between around external
plate assy (Item 8) and chassis assy (Item 1) to be damaged .
* Use brush and low pressure air tor emove dust on
external plate assy (Item 8) , external fan (Item 5) & heat
exchange CORE opening .
* Please check waterproof foam whether had damaged
before secure external plate assy plate (Item 8) back , if
yes , please remove damaged and stick new waterproof
foam first .