Delta HEX260PA-A Manual de usuario

HEX260PA-A 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 foam sticking ....................3

4. Electrical specification................................................................................3

4-1. Connection and LED indicator (on HEX panel)................................3

4-2. Standalone control mode...................................................................5

5. Mechanical feature......................................................................................6

5-1. Thermal path and Airflow baffle.......................................................6

5-2. Configuration.....................................................................................6

6. Maintenance and Replacement..................................................................7

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. Accessory....................................................................................................9

9-1. Power cable........................................................................................9

9-2. Function cable...................................................................................9

10. General Safety and Warnings...................................................................9

HEX260PA-A Heat Exchanger Instruction Manual

Page 1

1. Version

Rev. Description Drawn Approved Issue date

00 Issue spec. 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

HEX260PA-A

Outline Dimension (H x W x D) mm

(in) 1400 x 650 x 265

(55 x 26 x 10)

Cooling Capacity (*Note 1) W/K (W/℉)

175 (97) 230 (128)

Rated Voltage VDC 48

Rated Current (*Note 2) A 12.0

Operating Voltage Range VDC 40 - 60

Operating Current A 3.1 10.0

Operating Power Consumption W 149 480

Acoustic Noise at 1.5M (SPL) dB-A 65.0 74.0

Weight Kg (Lb) 37 (82)

* 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

HEX260PA-A 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 : Aluminum sheet t=1.5mm

(2) Finish : Power paint , Color RAL7032

(3) Dimensional tolerance : ± 1mm [0.04”]

HEX260PA-A Heat Exchanger Instruction Manual

Page 3

3-2. Mounting panel cutout and waterproof foam sticking

：

4. Electrical specification

4-1. Connection and LED indicator (on HEX panel)

Power Connection

on panel plate : CVILUX 3W3CS0000100000

mate with : CVILUX 3W3CP0000100000

COMM connection

on panel plate : CVILUX CD5115PA100

mate with : CVILUX CD5115SA100

HEX260PA-A Heat Exchanger Instruction Manual

Page 4

User can follow dry contact definition that is Normal Close (N.C.) to

detect abnormal status from pin 10 & pin 11

Definition N. C

Connection Pin 10 & Pin 11

Control board, NTC and fan are in

normal status CLOSE

NTC resistance is over range such as

“open circuit” or “short circuit” OPEN

Fan speed is lower than 50% of

definition or fan is locked OPEN

Dry contact max. rating : 75VDC/50mA

LED indicator

INNER FAN / OUTER FAN / STATUS LEDs indicate fan and NTC

sensor status .

Depress "TEST" button to start auto-test of outer and inner fans

running from low to high speed. Turn off by depressing the “TEST” button

again .

INNER FAN OUTER FAN STATUS

Normal GREEN GREEN GREEN

Failed* RED RED RED

Normal

(touch TEST / CLEAN) Blinking

GREEN Blinking

GREEN N/A

Failed*

(touch TEST / CLEAN) Blinking

RED Blanking

RED N/A

* FAN failed : Fan speed is lower than 50% of definition or fan is locked

* STATUS Failed : NTC resistance is over range such as “open circuit” or

“short circuit”

HEX260PA-A Heat Exchanger Instruction Manual

Page 5

NTC temperature sensor

User can switch inner sensor (on control panel) or external

sensor (COMM port Pin7 & Pin8 ) via J13 connector on controller as

shown below to change sensor location .

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

Cooling capacity (W/K) vs, Temperature

Inner fan speed vs. Temperature Outer fan speed vs. Temperature

HEX260PA-A Heat Exchanger Instruction Manual

Page 6

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 below .

5-2. Configuration

Item

Q'ty

Description

1 1 Chassis assy

2 4 Fan guard

3 1 Controller

4 2 Internal fan

5 2 External fan

6 1 Heat exchange CORE

7 1 Internal plate assy

8 2 External plate assy

HEX260PA-A Heat Exchanger Instruction Manual

Page 7

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 the dust or any debris on

both internal/external air inlet and air outlet opening .

Quarterly

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) & core opening .

* Connect internal 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 .

HEX260PA-A Heat Exchanger Instruction Manual

Page 8

Test

Please 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 : KFB2348HHUBDB

External fan P/N : KFB2348HHUA6T

Controller P/N : HEX260PA-A000C

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

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