Emerson Liebert.CRV+ User manual

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.
Copyright © 2016 by Emerson Network Power Co., Ltd.
All rights reserved. The contents in this document are subject to change without notice.
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: [e-mail]

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
60
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
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