HP LSW1FAN User manual

HP LSW1FAN & LSW1BFAN

Fan Assemblies Installation

Part number: 5998-1614

Document version: 5W101-20111028

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Contents

Fan tray overview························································································································································· 1

LSW1FAN overview and specifications ·························································································································1

Introduction to LSW1FAN ·······································································································································1

LSW1FAN specifications·········································································································································1

LSW1BFAN introduction and specifications ··················································································································2

Introduction to LSW1BFAN ·····································································································································2

LSW1BFAN specifications·······································································································································3

Fan tray fail LEDs·······························································································································································3

Removing/Installing a fan tray···································································································································· 1

Preparing tools ··································································································································································1

Removing a fan tray ·························································································································································1

Installing a fan tray ···························································································································································3

Maintaining a fan tray ·····················································································································································4

Fan tray overview

LSW1FAN overview and specifications

Introduction to LSW1FAN

An LSW1FAN (JC096A) fan tray comprises six independent fans (two big and four small fans). The two

big fans are used for heat dissipation of the main boards of the switch, and the four small fans are used

for heat dissipation of the OAP board and power supply units (PSUs).

The fan tray features hot swappable, low noise, and low power consumption, providing good heat

dissipation for the above-mentioned devices.

Figure 1 LSW1FAN view

(1) Fan tray handle (2) Captive screw

(3) 40 ×40 ×28 mm (1.57 ×1.57 ×1.10 in) fans (4) 70 ×70 ×25.4 mm (2.76 ×2.76 ×1.00 in) fans

LSW1FAN specifications

Table 1 LSW1FAN specifications

Specification Description

Fan number

•Two 70 ×70 ×25.4 mm (2.76 ×2.76 ×1.00 in) fans

•Four 40 ×40 ×28 mm (1.57 ×1. 57 ×1.10 i n ) f a n s

Fan speed

•70 ×70 ×25.4 mm (2.76 ×2.76 ×1.00 in) fans: 4700 R.P.M

•40 ×40 ×28 mm (1.57 ×1.57 ×1.10 in) fans: 9500 R.P.M

Max airflow 150 cubic feet per minute (CFM)

Input voltage 12 V

Specification Description

Total power consumption 15 W

Acoustics Normal speed: 44.3 dB-A

Max speed: 54.1 dB-A

Operating temperature –10°C to +70°C (14°F to 158°F)

Relative humidity

(noncondensing) 5% to 90%

Storage temperature –40°C to +75°C (-40°F to +167°F)

Storage relative humidity

(noncondensing) 5% to 95%

LSW1BFAN introduction and specifications

Introduction to LSW1BFAN

An LSW1BFAN (JC098A) fan tray exhausts the air from the device making use of the rotation of the

turbine, providing more powerful airflows compared to common fans, and applicable to high-density

devices.

The fan tray features small volume, fast heat dissipation, and hot swappable, providing powerful heat

dissipation for the above-mentioned devices.

Figure 2 LSW1BFAN view

(1) Captive screw (2) Air vent

(3) Fan tray handle (4) Captive screw

LSW1BFAN specifications

Table 2 LSW1BFAN specifications

Specification Description

Fan number 1

Fan speed 5000 R.P.M

Max airflow 41.65 CFM

Input voltage 12 V

Power consumption 24 W

Acoustics Normal speed: 48.4 dB-A

Max speed: 59.7 dB-A

Operating temperature –10°C to +60°C (14°F to 140°F)

Relative humidity (noncondensing) 5% to 90%

Storage temperature –40°C to +75°C (–40°F to +167°F)

Storage relative humidity (noncondensing) 5% to 95%

Fan tray fail LEDs

The two models of fan trays do not have status LEDs. You can check the system status LED and the

seven-segment LED of the device installed with a fan tray to determine whether the fan tray operates

properly. If the fan tray fails, the two LEDs give an indication, as shown in Table 3.

Table 3 Fan tray fail LEDs description

LED Mark

State

System status LED SYS Steady red

Seven-segment LED Unit

The LED displays Ffor fan failure.

NOTE:

Only when the system status LED and the seven-segment LED are displayed as steady red and F

respectively does it indicate that a fan tray fails.

Removing/Installing a fan tray

NOTE:

•The LSW1FAN and LSW1BFAN fan trays are hot swappable.

•The two models of fan trays and the devices are installed when shipped. This chapter mainly describes

how to replace a fan tray when it fails.

CAUTION:

To prevent overheating, do not operate the system without the fan trays for more than two minutes.

Preparing tools

•Phillips screwdrivers

•ESD-preventive wrist strap

CAUTION:

The installation tools are not provided with the Ethernet switches in this document.

Removing a fan tray

Follow these steps to remove a fan tray:

Step1 Put on an ESD-preventive wrist strap, and make sure that the wrist strap has a good skin contact and is

well grounded.

Step2 Loosen the screw on the fan tray with a Phillips screwdriver until the screw is completely separated from

the device, as shown in Figure 3 and Figure 4.

Figure 3 Remove an LSW1FAN (1)

Figure 4 Remove an LSW1BFAN (1)

Step3 Holding the handle of the fan tray with one hand, pull part of the fan tray out. Then supporting the

bottom of the fan tray with the other hand, pull it straight out of the fan tray slot along the guide rails, as

shown in Figure 5 and Figure 6.

CAUTION:

To replace a fan tray with the device runnin

, pull out the fan tray after it stop rotatin

. Keep your hands

away from the spinning fan blades even if the fan stops rotatin

; otherwise, the dynamic balance may be

broken, and thus the fan noise will be increased.

Figure 5 Remove an LSW1FAN (2)

Figure 6 Remove an LSW1BFAN (2)

NOTE:

After removing a fan tray, place it in an antistatic bag.

Installing a fan tray

Follow these steps to install a fan tray:

Step1 Put on an ESD-preventive wrist strap, and make sure that the wrist strap has a good skin contact and is

well grounded.

Step2 Take out the fan tray from the package, and make sure that the fan tray model matches the device model.

Step3 Holding the handle of the fan tray with one hand and its bottom with the other hand, gently insert the fan

tray into the fan tray slot until the fan tray connector well touches the backplane, as shown in Figure 7

and Figure 8.

Figure 7 Install an LSW1FAN (1)

Figure 8 Install an LSW1BFAN (1)

Step4 Fasten the screws with a Phillips screwdriver until the fan tray is well seated in the chassis, as shown in

Figure 9 and Figure 10.

Figure 9 Install an LSW1FAN (2)

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