Emerson Liebert.CRV+ Manual de usuario

Liebert.CRV+ Condenser (Only Applicable to 12kW Unit)

User Manual

Version V1.0

Revision date 2016-04-25

BOM 31013493

Emerson Network Power provides customers with technical support. Users may contact the nearest

Emerson local sales office or service center.

Emerson Network Power Co., Ltd.

Address: Block B2, Nanshan I Park, No.1001 Xueyuan Road, Nanshan District, Shenzhen 518055, P. R.

China

Homepage: www.emersonnetworkpower.com

E-mail: overseas.support@emerson.com

Contents

Chapter 1 Overview..................................................................................................................................................... 1

1.1 Naming Rules................................................................................................................................................ 1

1.2 Main Components.......................................................................................................................................... 1

1.3 Technical Parameters.................................................................................................................................... 1

1.3.1 Mechanical Parameters....................................................................................................................... 1

1.3.2 Dimensions of Mounting Base ............................................................................................................. 2

1.3.3 Parameters Of Operating Environment ................................................................................................ 2

1.3.4 Parameters Of Storage Environment.................................................................................................... 2

Chapter 2 Mechanical Installation................................................................................................................................. 3

2.1 Moving, Unpacking And Inspection................................................................................................................. 3

2.2 Installation Notes........................................................................................................................................... 3

2.3 Space Requirements...................................................................................................................................... 4

2.4 Installation Procedures................................................................................................................................... 4

Chapter 3 Maintenance And Troubleshooting............................................................................................................... 6

3.1 Maintenance.................................................................................................................................................. 6

3.2 Troubleshooting............................................................................................................................................. 6

Appendix 1 Hazardous Substances or Elements Announcement................................................................................... 7

Chapter 1 Overview 1

Liebert.CRV+ Condenser User Manual

Chapter 1 Overview

This chapter mainly introduces the naming rules, main components and technical parameters of the Liebert.CRV+

condenser (condenser for short).

1.1 Naming Rules

Liebert.CRV+ condenser naming rules are described in Figure 1-1.

L SF 12 -R3

R410A System

Applicable to 12kW Unit

Liebert

220V/1ph/50Hz Chopper speed-governing

Figure 1-1 Naming rules

1.2 Main Components

The outdoor unit uses air cooling, and the main components include fan and heat exchanger.

Fan

Using axial type low noise blades and high performance single phase motor, adapting to wide voltage range and

having a high reliability.

Heat exchanger

Using finned-tube heat exchanger with a high heat dissipating efficiency and wavy-fins, convenient for cleaning and

maintenance due to less dust accumulation.

1.3 Technical Parameters

1.3.1 Mechanical Parameters

The outline dimensions of the condenser are shownin Figure 1-2, and the mechanical parameters are given in Table

1-1.

352

1240

787

Figure 1-2 Outline dimensions of the condenser (Unit: mm)

2 Chapter 1 Overview

Liebert.CRV+ Condenser User Manual

Table 1-1 Mechanical parameters of condenser

Condenser model

Dimensions(W X D X H, mm)

Net weight (kg)

LSF12-R3

787×352×1240

1.3.2 Dimensions of Mounting Base

The dimensions of mounting holes of the base of the condenser are shownin Figure 1-3.

787

374

394

680 R6

Figure 1-3 Dimensions of mounting holes of the base of the condenser (top view, unit: mm)

1.3.3 Parameters Of Operating Environment

The operation environment parameters of the condenser meet GB/T4798.3 and GB/T19413. See Table 1-2 for details.

Table 1-2 Parameters of operation environment

Item

Requirement

Installation

position

The standard equivalent distance between the indoor unit and the condenser is 30m. Vertical difference*

ΔH: -8m≤ΔH≤30m.

Installation mode

Horizontal airflow and vertical airflow

Ambient

temperature

-15°C ~ +45°C. Low temperature kits are required if the temperature is below -15°C

Ambient humidity

Outdoor: 5%RH~95%RH

Operation power

220V±10%, 50Hz

Altitude

≤ 1000m. Derating is required if the altitude exceeds 1000m

Protection level

IPX4

Note*:

The value is positive if the condenser is installed higher than the indoor unit; otherwise the value is negative

1.3.4 Parameters Of Storage Environment

The storage environment parameters of the condenser meet GB/T4798.1 and GB/T19413. See Table 1-3 for details.

Table 1-3 Parameters of storage environment

Item

Requirement

Storage environment

Clean indoor environment with good ventilation and no dust

Ambient temperature

-40°C ~ +70°C

Ambient humidity

5%RH ~ 95%RH

Storage time

The total storage time should not exceed 6 months. Otherwise, the performance needs to be

re-calibrated

Chapter 2 Mechanical Installation 3

Liebert.CRV+ Condenser User Manual

Chapter 2 Mechanical Installation

This chapter introduces the moving, unpacking, inspection, installation notes, space requirements and installation

procedures.

2.1 Moving, Unpacking And Inspection

Moving

It is recommended to use mechanical transport equipment such as forklift or crane when unloading and transferring

the condenser closest to the installation site.

When a forklift is used, insert the tines of the forklift as shown in Figure 2-1.

Forklift

direction

Figure 2-1 Forklift direction

Unpacking

Remove the paper package and foam of the condenser but reserve the protection cardboard of fins. The protection

cardboard of fins should be removed after the condenser is in its installation position.

Note

When moving the condenser by hand, to avoid distortion and system leakage, do not touch the copper pipes.

Inspection

After receiving the product, you should check the accessories against the packing list. If any parts are foundmissing or

damaged, please report to the carrier immediately. If any covert damage is found, please report to the carrier and the

local office of the product supplier.

2.2 Installation Notes

1.The outdoor unit should be installed in the place that is convenient for maintenance. Do not install the outdoor unit at

the bottom layer of the public place and the unit should be installed far away from the residential area.

2.Do not directly install the outdoor unit in the environment with high requirements for noise.

3.To ensure the heat dissipation capacity, install the condenser in a clean place that is far away from dusts and alien

objects to avoid obstruct the heat exchanger.

4.Do not place the unit close to vapors, hot gases and waste gases.

5 Keep at least 450mm clearance between the outdoor unit and the wall, barrier or neighboring equipment.

6.Do not place the unit at the air inlet side and air discharge side where snow may be accumulated.

4 Chapter 2 Mechanical Installation

Liebert.CRV+ Condenser User Manual

7.Prepare a base that can withstand the weight of the outdoor unit (see table 1-1 for the specific weight). The height of

the base should be at least 50mm above the ground and should be higher than the base of outdoor unit by 50mm, as

shown in Figure 2-2.

8.When multiple outdoor units need to be placed in overlap mode, install according to the mode as shown in Figure

2-2.

Bracket

4m 0.5m

50mm50mm

Min. 50mm

Outdoor unit base

Base

Airflow

Out-

door

unit

Out-

door

unit

Note:

1. Use 5# angle iron for bracket, when

two units are installed with one above

the other.

2. Use 6.5# channel steel for bracket, when

three units are installed with one above the

other.

Figure 2-2 Multiple outdoor units placed in overlap mode

2.3 Space Requirements

Note

1. A4000mm clearance is required around the condenser air outlet.

The condenser needs sufficient installation and service space around the installation place.

2.4 Installation Procedures

Note

To ensure the safety, before welding the pipeline and patching welding, all nitrogen of air condition system must be discharged to

release the system pressure.

Installing pipelines

Note

1. The copper pipes should be heat preserved. When the copper pipes pass through the wall or other obstacles, take isolation

measure such as using the shock pad to avoid direct contact with the wall. Prevent the dust, water vapor and solid particles from

entering the copper pipes.

2.To ensure the quality of welding, the silver-based solder with good quality is required to weld the elbow- pipe. The nitrogen

protection should be done while welding.

1. Identifying the pipe sizes

Refer to Installing Unit Pipes in Liebert CRV+ Series Air Conditioner User Manual for pipe sizes.

2.Identifying the condenser installation height

Refer to Installing Unit Pipes in Liebert CRV+ Series Air Conditioner User Manual for the installation height.

3.Installing pipes

Install the pipes according to the factual conditions and industry standard.

Chapter 2 Mechanical Installation 5

Liebert.CRV+ Condenser User Manual

Connecting cables

Note

1. The protected tube or shielded line is required for the outdoor part of the connection cable between the indoor unit and the

condenser. The ground cable should be connected to the ground nearby, and the length cannot exceed 3m.

2.The cables cannot contact with hot objects, such as the copper tube and water pipe without insulation, to avoid damaging the

insulation layers.

3. The cables should be connected in accordance with the local regulations.

4. The power supply of the equipment should be installed by professional personnel on site. If the power supply soft cables are

damaged, to avoid risk, they must be replaced by the professional personnel from the manufacturer, maintenance department or

similar department of the manufacturer.

The specifications of the power supply cables of the outdoor unit is (L+N+PE), the recommended cable diameter is no

less than 18AWG(0.75mm2). Connect one end of the power supply cables from the accessories to the power output

terminals of the indoor unit as shown in Figure 2-3, and connect the other end to the power terminals of the condenser

as shown in Figure 2-4.

Power output

terminals

Figure 2-3 Power output terminals of the indoor unit

AA amplified

Power cable

connection

terminal

Cable clip

Cable

entry hole

Connect cableRemove cover Install cover

Figure 2-4 Wiring diagram of the condenser power supply cables

Charging refrigerant and adding cooling oil

Refer to Installing Unit Pipes in Liebert CRV+ Series Air Conditioner User Manual for charging refrigerant and adding

cooling oil.

6 Chapter 3 Maintenance And Troubleshooting

Liebert.CRV+ Condenser User Manual

Chapter 3 Maintenance And Troubleshooting

This chapter introduces the maintenance and troubleshooting of the condenser. Users should check the condenser

regularly and solve the problems in time.

Note

1. The maintenance of the condenser must be done by technicians.

2. Except for the commissioning items that must be carried out with power on, during maintenance, the power of the indoor unit

must be cut off.

3.1 Maintenance

Refrigeration system

1.Check that the refrigeration pipes are firmly fixed. The refrigeration pipes shall not shake with the vibration of wall,

earth or equipment frame. Otherwise reinforce the refrigeration pipes with fastening objects.

2. Check that there is no oil on the accessories of all refrigeration pipes, and make sure that the pipes do not leak.

Heat exchanger

1. Clean the fin of heat exchanger regularly.

2. Clean the fin of heat exchanger with compressed air or fin detergent (weakly alkaline) if the condenser air flow is

blocked. The direction of inverse air flow is good when the compressed air is used.

3. Check for damaged or reversed fins and maintain them in time.

4. Avoid snow accumulation around the condenser in winter.

Fan

Check that the fan runs normally and check it for problems such as abnormal noise, vibration and bearing failure.

3.2 Troubleshooting

Perform troubleshooting according to Table 3-1.

Table 3-1 Table of alarm troubleshooting

Fault phenomenon

Possible causes

Handling method

Equipment does not

start up

Equipment does not connect to the

power supply

Check the input voltage

High pressure alarm

Insufficient condenser air flow

Clean away the ailen objects on the coil surface or near the

air inlet, and check the fan speed regulation function of the

control board

Condenser fan does not run

Check if the cable connection between the control board

and outdoor unit terminals is loosened, check if the outdoor

uinit cable connection is loosened, and check if the

condenser pressure sensor is normal

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