Preparation Guide to BSC6900 Installation-20111229-C-V1.4 (1)

8/3/2019 Preparation Guide to BSC6900 Installation-20111229-C-V1.4 (1)

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Customer Preparation Guide to BSC6900 Installation

Scope GlobalDocumen

t code.

ObjectCustomer/HuaweiEngineer/Partner

ProductVersion

V900R011/R012/R013/R014

Realeasing Dept.

TSD Wireless ProductService Dept.

Document Version

1.4

Product BSC6900

Customer Preparation Guide toBSC6900 Installation

Draft: Date:

Review: Date:Review: Date:

Approve: Date:

Huawei Technologies Co., Ltd.


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Revise Record

DateRevisionVersion

Description Author

2009-9-21 1.0 Initial Version Gao Peng

2010-2-10 1.1Add preparation for OSS Network and

preparation for software networkGao Peng

2010-7-19 1.2Add the electrical specifications of

BSC6900V900R012Gao Peng


BSC6900V900R013Gao Peng


BSC6900V900R014Ni Huijun

Huawei Technologies Co., Ltd. No dissemination without permission Page ii Total 21


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Table of Contents

Chapter 1 Preface ........................................................................................................................................1

Chapter 2 Installation Flow of Huawei .......................................................................................................2

Chapter 3 Installation Requirements ...........................................................................................................3

3.1 Introduction to the BSC6900 ........................................................................................................3

3.2 Equipment Room Building Requirements ....................................................................................5

3.2.1 Equipment Room Building ................................................................................................5

3.2.2 Layout requirements for the BSC6900 switch room: ........................................................6

3.2.3 BSC6900 equipment room: ...............................................................................................6

3.3 Requirement for Equipment Operation Environment ..................................................................6

3.3.1 Antistatic and EMI Requirements ......................................................................................7

3.3.2 Dust-proof Requirements ...................................................................................................7

3.3.3 Temperature and Humidity Requirements .........................................................................7

3.3.4 Noise ..................................................................................................................................8

3.3.5 Lighting .............................................................................................................................83.3.6 Atmospheric Pressure .........................................................................................................8

3.3.7 Air Pollution ......................................................................................................................8

3.3.8 Air Conditioners ................................................................................................................8

3.3.9Cabling Requirements ........................................................................................................9

3.3.10 Safety Requirements ........................................................................................................9

3.3.11 Equipment Storage Conditions ........................................................................................9

3.3.12 Contact Means .................................................................................................................9

3.3.13 Desks & Chairs ...............................................................................................................9

Chapter 4 Project Implementation Preparations ...............................................................................10

4. 1 Preparation of DC Power and Storage Batteries ................................................................10

4. 2 Preparation of AC Power ..................................................................................................10

4. 3 Preparation of Transmission Equipment ...........................................................................10

4. 4 Preparation of DDF ............................................................................................................10

4. 5 Preparation of Cabling Racks ............................................................................................11

Huawei Technologies Co., Ltd. No dissemination without permission Page iii Total 21


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4. 6 Preparation of Cabling Racks .............................................................................................11

4. 7 Preparation for pedestal by customer .................................................................................11

4. 8 Preparation for OSS network .............................................................................................11

4. 9 Preparation for software commissioning ...........................................................................12

Appendix A Self-check List .....................................................................................................................12

A.1 Acceptance of the Equipment Room Environment ...................................................................12

A.2 Acceptance of the Power Supply ...............................................................................................13

A.3 Acceptance of the Grounding Cables .........................................................................................13

Appendix B Physical Parameters of BSC6900 .........................................................................................14

Appendix C Calculation of Air Conditioner Capacity ..............................................................................16

Huawei Technologies Co., Ltd. No dissemination without permission Page iv Total 21


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Preparation Guide to BSC6900 Installation Internal

Chapter 1 Preface

Dear customers, thank you for choosing the BSC6900 products of Huawei. For better

cooperation between us and for smooth engineering, we hereby provide you with this guide

for you to prepare for the project installation of the product. We hope that you can make all

the preparations according to the requirements stated in this guide before Huawei engineers

arrive at the site so that during the project implementation, the equipment can be installed

smoothly and rapidly and put into operation to create better social and economic benefits at a

date as earliest as possible. You need to get the following ideas before making the preparing

for project installation:

After making all the preparations, please contact Huaweis local representative office

in due time so that Huawei can arrange the corresponding engineer(s) for the project

installation.

If due to some causes, the specific installation of the project is implemented while the

preparations for project installation are not completely finished, you shall take the

responsibility of arranging the corresponding personnel to complete the unfinished

part during the project installation to facilitate the smooth progress of the project.

If due to some causes, the specific installation of the project is implemented while the

preparations for project installation are not completely finished, and the project

cannot go on during the project installation due to your insufficient preparations,

Huawei is entitled to proposing the suspension of installation according to the

specific conditions. After you have made full preparations, we may negotiate again to

resume the work.

While making the preparations, if you have any question, you may consult Huaweis

representative office in the local province or city at any time.

Address of Huaweis local representative office:

Tel/Fax of Huaweis local representative office:

Project supervisor of Huaweis local representative office & Tel:

2012-01-15 HUAWEI Confidential Page1


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Chapter 2 Installation Flow of Huawei

To strengthen cooperation and understanding, the installation flow of Huawei is briefly

introduced here. The equipment installation flow of Huawei is implemented as soon as the

contract takes effect and until the final acceptances passed to enter the maintenance flow.

The process is as follows:

It can be seen that the smooth completion of a project needs the close cooperation between

the customer and Huawei. Here we hope that this project can be completed smoothly. If any

question , please contact the local representative office in time. We will provide help and



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service to you sincerely.

Chapter 3 Installation Requirements

3.1 Introduction to the BSC6900

The BSC6900 is an important network element of the Huawei Single RAN solution. It adoptsthe industry-leading multiple radio access technologies, IP transmission mode, and modulardesign. In addition, it is integrated with the functions of the UMTS BSC6900 and GSM BSC,thus efficiently maintaining the trend of multi-RAT convergence in the mobile network.

The BSC6900 can be flexibly configured as a BSC6900 GSM, BSC6900 UMTS, or BSC6900GU as required in different networks. The BSC6900 in independent mode refers to theBSC6900 GSM or the BSC6900 UMTS whereas the BSC6900 in integrated mode refers tothe BSC6900 GU.

The BSC6900 GSM, in compliance with the 3GPP R6, operates as an independent NE toaccess the GSM network and performs the functions of the GSM BSC. With the support ofEDGE+, the BSC6900 GSM can be upgraded to the BSC6900 GU through addition of UMTSboards and software upgrade.

The BSC6900 GU operates as an independent NE to access the GSM&UMTS network andintegrates the functions of the GSM BSC and the UMTS BSC6900. When the BSC6900 GU

accesses the GSM network, the 3GPP R6 applies; when the BSC6900 GU accesses theUMTS network, the 3GPP R7 applies.

The BSC6900 UMTS, in compliance with the 3GPP R7, operates as an independent NE toaccess the UMTS network and performs the functions of the UMTS BSC6900.

The following figure shows the BSC6900



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Figure 3-1 BSC6900

Figure 3-2 Position of BSC6900 in the network

The interfaces between the BSC6900 and each NE in the UMTS network are as follows:

Iub: the interface between the BSC6900 and the NodeB Iur: the interface between the BSC6900 and the BSC6900 Iu-CS: the interface between the BSC6900 and the Mobile Switching Center(MSC) or Media Gateway (MGW) Iu-PS: the interface between the BSC6900 and the Serving GPRS SupportNode (SGSN) Iu-BC: the interface between the BSC6900 and the Cell Broadcast Center(CBC)

These interfaces are standard interfaces, through which equipment from different vendors can

be interconnected.



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The interfaces between the BSC6900 and each NE in the GSM network are as follows:

Abis: the interface between the BSC6900 and the BTS A: the interface between the BSC6900 and the Mobile Switching Center (MSC)

or Media Gateway (MGW) Gb: the interface between the BSC6900 and the Serving GPRS Support Node(SGSN)

The A and Gb interfaces are standard interfaces, through which the equipment from differentvendors can be interconnected.

The BSC6900 performs functions such as radio resource management, base stationmanagement, power control, and handover control.

3.2 Equipment Room Building Requirements

3.2.1 Equipment Room Building

The equipment rooms for BSC6900 consist of the switch room, the control room (usually with

an area no less than 20m2), and the auxiliary room. Sometimes the switch room and the

control room can be integrated. The equipment room should not be on the first floor lest the

equipment room be waterlogged or humid. Addition it cannot be on the top floor, because the

sunshine directly overheats the equipment room, and lightning strike becomes more likely.

1) The civil engineering work of the sectors like the equipment room and corridors has been

fully completed, with the indoor wall being fully dry.

2) Floor load of the equipment room: less than 450 kg per square meter;

3) The net height (from the surface of the antistatic floor to the lower edge of the beam) of

the BSC6900 equipment room should not be less than 3.5m for the upward cabling mode

and should not be less than 3m for the downward cabling mode. The size of the main

doors of the equipment room shall not hinder moving of the equipment. The locks and

keys of the doors shall be complete;

4) Ventilation equipment shall be provided;

5) The ceiling, walls, doors, windows and floor of the equipment room shall not break off,

cause dust or accumulate dust easily, and shall be able to prevent the incursion of dust

and sand. It is strictly required that the ceiling be waterproof and dust-proof. Thedecoration material shall be non-inflammable or fire-retardant;

6) Various troughs shall have moisture-proof measures with smooth corners. The floor and

cover plates shall be tightly sealed. The lighting and power wires should adopt hidden

layout as much as possible;

7) Color of the equipment room

i. Normally, patterned materials shall not be adopted for the floor, and the walls

and roof should be in bright and quietly elegant colors.

8) Area requirement and floor plan of the equipment room

i. The area of the equipment room where the equipment is to be installed should

be determined according to the final capacity of the office. For the specific



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requirements, you may negotiate with the surveyors of Huawei during the

equipment room layout planning;

3.2.2 Layout requirements for the BSC6900 switch room:

The distance between the faces of two rows of cabinets shall not be less than 1.8m. The

distance between the cabinet side and the wall should be no less than 0.8 meters, and the

distance between the debugging side and the wall should be no less than 1.0 meter, as

shown in Figure 3-2 (the dimensions are for reference only). There shall be a walkway over

1.0m wide in the equipment room.

Figure 3- 2 Layout requirements for the equipment room

3.2.3 BSC6900 equipment room:

If the antistatic raised floor is installed in the equipment room, it is suggested that the height ofthe floor be between 300mm and 450mm. The resistance value of the raised floor shall

comply with Technical Requirements for the Raised Floor Used in Computer Equipment

Rooms. The floorboards should be tightly fit and robust, with the horizontal error no greater

than 2mm per square meter. The equipment should be well grounded. Antistatic floor or floor

leather with semi-conductive materials should be paved. In the latter case, copper foil should

be used to ground it at several points (Copper foil should press tightly between the cement

floor and the semi-conductive floor, and should be connected to the grounding wire).

If raised floor is not available, the antistatic floor should be applied (volume resistively 1.0

107 ~ 1.0 1010). Electrostatic conductive floor or raised floor must be grounded. It can

connect to grounding device through current limiting resistor and connecting wire. Resistance

of the current limiting resistor shall be 1M.

3.3 Requirement for Equipment Operation Environment

The environment shall be clean, dustless and free from the incursion of any corrosive gas,

exhaust gas and chemical exhaust gas. No water pipes shall pass the equipment room. The

equipment room shall be prevented from contact with water in any case. If the central heating



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is installed in the equipment room, no valve shall be left or no connector shall be exposed.

The air conditioning equipment shall satisfy the requirements of maintaining the indoor

temperature and humidity. The environment shall also prevent the equipment from damage

caused by static electricity or interference from the electromagnetic field.

3.3.1 Antistatic and EMI Requirements

1) The equipment room should adopt the antistatic floor or antistatic ground that is well

grounded.

2) The equipment room should be equipped with antistatic clothes and antistatic wrist

straps.

3) The equipment room should keep away from EMI. The intensity of the electric field shall

not exceed 300mV/m, and that of the magnetic field shall not exceed 11GS.

3.3.2 Dust-proof Requirements

1) The concentration of the dust granules with the diameter more than 5 microns is less than

3104 granule/m3.

2) The dust granules shall be non-conductive, non-magnetic conductive and anti-corrosive.

Recommended dustproof measures for the equipment room:

a. Tightly seal the doors and the windows. The outer window shall use double-layer glass for

sealing. The door shall be added with dustproof sealing strips.

b. Maintain the cleanliness of working clothes and slippers, and clean/change them

frequently.

c. Isolate the control room from the BSC6900 equipment room with aluminum alloy glass.

Do not enter the BSC6900 equipment room unless necessary, because dust or other

interference factors may be caused by staff that frequently walks about the room;

d. The relative humidity of the equipment room shall be a little higher within the permitted

range to reduce the static dust absorption.

3.3.3 Temperature and Humidity Requirements

Temperature (C) Relative humidity (%)

Normal workingconditions (seeNote 1)

Short-termworking conditions(see Note 2)

Normal workingconditions

Short-termworkingconditions

15C ~ 30C 0C ~ 45C 40%~65% 20%~90%

Note 1: Under the normal working conditions of the switch, the measurement of temperature

and humidity refers to the value measured 2.0 meters above the floor and 0.4 meters in front

of the equipment (measured when there is no protection board in the front or at the back of



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the rack).

Note 2: The short-term working condition means that the continuous operation period is no

more than 48 hours and the accumulated yearly operation periods are no more than 15 days.

The equipment room shall be equipped with air conditioners as follows:

a. Air-condition humidity: 30%-75%; 50%-60% recommended.

b. Air-condition temperature: 18C ~ 28C; 20C ~ 25C recommended.

3.3.4 Noise

Indoor noise 70 decibels (the machine can work in a harsher environment however ,amore

harsh environment is detrimental to human health).

3.3.5 Lighting

1) Avoid direct sunlight to prevent aging and distortion of the components such as circuit

boards caused by long-term irradiation.

2) The average illumination is 150~200LX. There should be no glare. Normally, the

fluorescence lamps embedded in the ceiling are adopted. The average illumination for

NodeB can be more than 50LX.

3) Emergency lamps shall be installed in the equipment room.

3.3.6 Atmospheric Pressure

Working requirement: 1.08 105 ~ 5.1 104Pa (-500mm ~ +500mm)

Storage requirement: 1.08 105 ~ 1.2 104Pa (-500mm ~ +1500mm)

3.3.7 Air Pollution

The equipment shall not be exposed to corrosive air, such as the hydrogen sulfide, sulfur

dioxide, oxide containing ammonia, or smog such as the oil solvent, smoke and dust. No

smoking is allowed in the equipment room.

3.3.8 Air Conditioners

There shall be special air conditioners with humidity adjustment separately installed in the

large equipment room. To ensure the normal operation of the air conditioners, take the

following measure:

a) Use 2-line AC mains supply or prepare the power generator to stabilize the power supply of

the air conditioners.

b) It is suggested to install three air conditioners in the equipment room. At least there should

be two, one of which serves as the standby. Thus, you may select the number of working airconditioners according to the temperature. This can reduce the continuous working hours of a



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single air conditioner, save energy and improve the reliability.

3.3.9Cabling Requirements

1) Usually the cables should be distributed in troughs with moisture-proof, rodent-proof and

fireproof measures taken.

2) The signal cables shall be separated from the power cables to avoid interference.

3) The customer should provide the troughs or upward cabling racks for cabling convenience.

3.3.10 Safety Requirements

1) The equipment room must be equipped with appropriate extinguishers.

2) The equipment room inside should have different voltage sockets that are clearly

marked.3) No dangerous articles like explosive or flammable articles are allowed inside the

equipment room.

4) The reserved holes in the floor boards should be covered with safety lids. According

to the stipulation about the fireproof spacing of civilian buildings in the nations

Fireproof Specifications in Building Design: as a key fireproof unit, the communication

building shall have the first or second fireproof level (high building). The fireproof

spacing between buildings shall be no less than 6 meters. If the adjacent buildings

have the third or fourth fireproof level, the spacing between them shall be no less

than 7 meters.

3.3.11 Equipment Storage Conditions

The RAN equipment belongs to precious electronic equipment, whose storage environment

shall have good packaging, waterproof, quakeproof and pressure-proof conditions.

3.3.12 Contact Means

Contact means (including Tel and fax) should be available in the switch room for future

contact needs.

3.3.13 Desks & Chairs

Desks should be arranged in the control room to place maintenance terminals, NM

workstations and printers for future needs of debugging and routine maintenance.



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Chapter 4 Project Implementation Preparations

4. 1 Preparation of DC Power and Storage Batteries

To guarantee the stable operation of the switch, the operating voltage of it should range

between 40V and 57V. However, considering the voltage drop of power cables, the range

of DC voltage is required to be between 43V and 57V. The primary power and storage

batteries should provide hot backup for each other to ensure that the switch can still work

normally even in the case of power failure. In addition, the 48V power cable should be

connected to the DC power distribution cabinet or the power junction box.

The power consumption of the switch varies with its specific configurations. For the power

consumption of the equipment in the current phase, please refer to the Technical Proposal in

the contract or consult the survey design personnel.

4. 2 Preparation of AC Power

AC power is used both in the project implementation and at the maintenance terminals;

therefore, the AC power should be ready in the equipment room before the implementation

and its voltage should range between 187V and 242V. In the case of a power failure or fault,alarms should be given. In addition, UPS power should also be available in the equipment

room to guarantee that the maintenance terminals still work normally in the event of power

failure.

4. 3 Preparation of Transmission Equipment

Iub interface of BSC6900 supports ATM,IP transmission type, and each transmission

interface ,such as E1, FE. The customer should install and commission the necessary

transmission links to ensure their smooth operation. The installation of the transmission

equipment shall satisfy the relevant national standards.

4. 4 Preparation of DDF

Select appropriate DDFs according to relevant standards and install them before project

implementation. The capacity of the DDF shall be designed according to the capacity and

long-term planning of this project. When selecting the connectors at the DDF side, take into

consideration the model of the trunk cables delivered by Huawei for this project. You may

refer to the contract or consult the survey designers for the preparation of the connectors of

the trunk cables at the DDF side. It is suggested that the DDFs adopt the copper wires of no

less than 6mm2 to connect with the protection grounding bar of the equipment room.



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4. 5 Preparation of Cabling Racks

The cabling racks in the equipment room are suggested to be 400mm wide and 2.4m high.

Generally, the cabling racks are installed by using suspenders.

4. 6 Preparation of Cabling Racks

According to the relevant national standards, the communication office where the switch is

located shall use joint grounding, i.e. working ground, protection grounding and lightning

protection grounding of various communication equipment are combined into one. Each

equipment room shall be installed with branch grounding bars with the grounding resistance

as described previously. The grounding cable from the branch-grounding bar to the grounding

bus bar shall be a copper wire that is of appropriate length and has good contact. No

connection or switch is allowed in the middle of the grounding cable.

4. 7 Preparation for pedestal by customer

BSC6900 equipments adopt N68-22 cabinet, and the pedestal will be provided when the

equipments are installed the anti-static floor room. There are 3 type pedestal below:

Type Floor Heightmm(from groud to the top of anti-static floor))

I 210-255

II 256-345III 346-525

If the customer will provide the pedestal by themselves, please select the relevant materialand refer to the installation hole position followed below:

install hole cabinet front

igure 4-1 N68-22 cabinet install hole

4. 8 Preparation for OSS network



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1. M2000 should be built or finished capacity expansion before the controller installation;

2. The O&M channel that M2000 to other NEs should be ready in advance for remote

commissioning or data configuration and so on.

4. 9 Preparation for software commissioning

Software commissioning preparation, for example, data collection or integration data

negotiating, should be done before the software commissioning start.

Appendix A Self-check List

A.1 Acceptance of the Equipment Room Environment

Item of acceptance Method andrequirement

Index Result

Remarks

Height of theequipmentroom

Minimum heightfrom the beam tothe floor

3m~3.5m

Load bearing Load-bearing ofthe floor

>450Kg/m2

Wall surface Pasted withwallpaper oriusterless paint

Not easy to chalk

Floor Semi-conductive anddustless

Antistatic floor

Temperature Normal workingtemperature

range:

1530

Short-termworkingtemperature

humidity range:

045

Humidity Normal workinghumidity range:

4065%

Short-termworkingtemperaturehumidity range:

2090%

EMI Electric field:

Magnetic field:

No maore than300mV/m

Less than 11Gs

Antistatic Antistatic floorAntistatic



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around

Dust proof When the diameter of the dust granule is morethan 5 microns,The concentration is less than3104 granule/m3

Quakeproof Inaccordancewith the localconstructiondesign intensity

One degree higher

Lighting No direct sunlight Average illumination:150~200LX

Air conditioner Type and power The cooling powermeets thetemperature controlrequirement of theequipment room

Fireproof Fireproof equipment andlabel identifydifferent voltagesockets

China nationalsecond-classfireproof standard

A.2 Acceptance of the Power Supply

Item Test result Index Result Remarks

DC voltage The primarypower andstoragebatteries workin mutual hotstandby state

Working range-43V~-57V

Standby dieselgenerator

Recommended Good

AC voltage 187V-242V GoodIn-positioncondition of thepower cable

The-48V powercable should beconnected to

the DC powerdisrtibutioncabinet or thepower junctionbox

Good

Power supplyalarm

Alarm in thecase of powercut and failure

Good

A.3 Acceptance of the Grounding Cables

I



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Item name Method andrequirement

Index Result Remark s

Grounding barand branch

grounding bar

The coppergrounding bar

and copperconductors shallbe as near aspossible to eachother. Thegrounding cableshall be as thickas possible

Installationcompleted.

Good contact

Groundingresistance

Joint grounding Groundingresistance: =1

Lead-in conditionof groundingcables

The groundingcables should beconnected to theDC powerdistributioncabinet or thepower junctionbox

Good

Appendix B Physical Parameters of BSC6900

Item Specification

Dimensions 2,200 mm (height) x 600 mm (width) x 800 mm (depth)

Height of the available space 46 U (1 U = 44.45 mm = 1.75 inches)

Weight Empty cabinet 100 kg

Cabinet in full configuration 320 kg

Rated input voltage -48 V

Input voltage range -40 V to -57 V

EMC Meets the requirements in ETSI EN300 386

Meets the requirements in Council directive

89/336/EEC

BSC6900V900R011:

Item Sub-Item Specification

Power Input Power input -48V DC

Power range -40 V to -57 VPower consumption of a single subrack MPS: 1,000 W



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(GSM network)

EPS: 1,000 W

TCS: 1,000 W

Power consumption of a single subrack

(UMTS network)

MPS: 1,520 W

EPS: 1,390 W

NOTE:

You can calculate the power consumption of the cabinet in any subrack combination mode by using the

preceding data.

BSC6900V900R012:


Power Input Power input -48V DC

Power range -40 V to -57 V


(GSM network)

MPS: 1,200 W

EPS: 1,200 W

TCS: 1,200 W


(UMTS network)

MPS: 1,560 W

EPS: 1,540 W

NOTE:


preceding data.

BSC6900V900R013:


Power Input

(PARCb)

Power input -48V DC



(GSM network)

MPS: 1,300 W

EPS: 1,300 W

TCS: 1,000 W

Power consumption of a single subrack MPS: 1,700 W



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(UMTS network) EPS: 1,730 W

NOTE:


preceding data.

BSC6900V900R014:


Power Input

(Cabinet)

Power input * 4 -48V DC



(GSM network)

MPS: 1,700 W

EPS: 1,700 W

TCS: 1,000 W


(UMTS network)

MPS: 1,700 W

EPS: 1,700 W

NOTE:


preceding data.

Appendix C Calculation of Air Conditioner Capacity

The capacity of the air conditioner for an equipment room depends on the following two terms:

(1)Area of the equipment room

(2)Heat productivity Qequipment

Refrigerating output of the air conditioner (estimated): worked out based on the standard of

250W/m2 ~ 300W/m2 depending on the area of the equipment room.



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[Note: The result is to be modified depending on the specific requirements of each country and a

high value if the temperature of the local place is high.]

Refrigerating output of the air conditioner (accurate calculation) = (Qequipment+

Qtransmission)*1.2 (with a margin of 20% taken into consideration)

Heat productivity: Qequipment = 0.82*V*A

Q: Heat productivity (kilocalories/hour)

V: DC power supply voltage (V)

A: Average current on busy hours (A)

0.82: the arithmetic product of 0.86 (conversion factor from one-watt electrical energy to

heat energy) and 0.95 (converstion coefficient between electrical energy and heat energy).

Heat transmission of equipment room: Qtransmission = F*( Toutdoor - Tindoor)* /h

Q: Heat productivity (W)

F: Heat transmission area (m17)

Toutdoor: the highest local temperature outdoors (C) Tindoor: the required indoor

temperature (C)

: Heat transmission coefficient of the wall ( = 0.87 for brick wall, =0.79 for concrete

wall)

h: thickness of the wall (m)

Appendix: unit conversion: 1KW=860 kcal.

1 p=2616W (P refer to the power unti of compressor)

The actual capacity of the air-conditioner required depends on its heat productivity and the area

of the equipment room. Refer to the related engineering design regulations for the specific

calculation.


Preparation Guide to BSC6900 Installation-20111229-C-V1.4 (1)

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Transcript of Preparation Guide to BSC6900 Installation-20111229-C-V1.4 (1)