condenser product manual

Liebert.PEX Condenser Technical Manual Version V1.0 Revision date 2008-07-17 BOM 31020737

Emerson Network Power provides customers with technical support. Users may contact the nearest Emerson local sales office or service center.

Copyright 2008 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: No.1 Kefa Rd., Science & Industry Park, Nanshan District 518057, Shenzhen China

Homepage: www.emersonnetworkpower.com.cn

E-mail: [email protected]

Liebert.PEX Condenser Technical Manual

Contents

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

1.1 Classification And Model....................................................................................................................................... 1 1.2 Model Description ................................................................................................................................................. 1 1.3 Appearance And Structure.................................................................................................................................... 1

Chapter 2 Techanical Parameters....................................................................................................................................... 3

2.1 Environmental Parameters ................................................................................................................................... 3 2.1.1 Paramters Of Storage Environment........................................................................................................... 3 2.1.2 Paramters Of Operation Environment ....................................................................................................... 3

2.2 Mechanical Parameters ........................................................................................................................................ 4 2.2.1 Mechanical Parameters Of Condenser...................................................................................................... 4 2.2.2 Mounting Base Parameters ....................................................................................................................... 4

2.3 Performance Parameters...................................................................................................................................... 5 2.3.1 Fan Design Parameters............................................................................................................................. 5 2.3.2 Heat Exchanging Capacity ........................................................................................................................ 6 2.3.3 Noise Parameters...................................................................................................................................... 6 2.3.4 Configuration Parameters.......................................................................................................................... 7

Chapter 3 Fan Speed Controller ......................................................................................................................................... 8

3.1 Control Logic......................................................................................................................................................... 8 3.2 Wiring Terminals ................................................................................................................................................... 9 3.3 HMI ..................................................................................................................................................................... 10 3.4 Operation Description Of HMI............................................................................................................................. 11 3.5 Protection Function ............................................................................................................................................. 14 3.6 Alarm Protection ................................................................................................................................................. 14

Chapter 4 Maintenance And Troubleshooting ................................................................................................................... 15

4.1 Maintenance ....................................................................................................................................................... 15 4.2 Troubleshooting .................................................................................................................................................. 16

Appendix 1 Condenser Matching Table ............................................................................................................................ 18

1. R22 Matching Table.............................................................................................................................................. 18 2. R407C Matching Table ......................................................................................................................................... 19

Appendix 2 Circuit Diagram............................................................................................................................................... 20

Appendix 3 Lifting Figure................................................................................................................................................... 22

Chapter 1 Overview 1

Chapter 1 Overview

This chapter introduces the classification, model, model description, appearance and structure of the Liebert.PEX condenser (condenser for short).

1.1 Classification And Model

The condenser can be classified into two types: single system and double system with 13 models. See Table 1-1 for detailed models.

Table 1-1 Models

Type Model Single system LSF24, LSF32, LSF38, LSF42, LSF52, LSF62, LSF70, LSF76, LSF85 Double system LDF42, LDF52, LDF62, LDF70

1.2 Model Description

Taking LSF62 for example, the model description of the condenser is shown in Figure 1-1.

L SF 62Model codeSF: single system with fan speed controller

LiebertDF: double system with fan speed controller

Figure 1-1 Model description

1.3 Appearance And Structure

The condenser consists of heat exchanger, fan, fan speed controller and pressure sensor. The heat exchanger is inside the condenser, other components are shown in Figure 1-2. Note that if the side copper pipes are collided, they will be deformed easily to result in the system leakage. So you must use a correct method to move the condenser. For detailed movement, refer to Chapter 2 Installation in Liebert.PEX Condenser User Manual and Appendix 3 Lifting Figure in this manual.

Pressure sensor

Fan

Electrical control box (there isa fan speed controller inside)

Single fan


2 Chapter 1 Overview

Pressure sensors

Fans

Electrical control box (there isa fan speed controller inside)

Double fans

Figure 1-2 Condenser


Chapter 2 Technical Parameters 3

Chapter 2 Techanical Parameters

This chapter expounds the environmental parameters, mechanical parameters and performance parameters of the condenser.

2.1 Environmental Parameters

2.1.1 Paramters Of Storage Environment

See Table 2-1 for storage environment of the condenser.

Table 2-1 Parameters of storage environment

Item Requirement Storage environment Clean indoor environment with good ventilation and no dust Environmental temperature -40C ~ +70C Environmental humidity 5%RH ~ 85%RH

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

2.1.2 Paramters Of Operation Environment

See Table 2-2 for the operation environment of the condenser.

Table 2-2 Parameters of operation environment

Item Requirement

Installation position The standard equivalent distance between the indoor unit and condenser is 30m. The vertical difference* H is from -5m to 20m. The installation mode includes horizontal mode and vertical mode

Environmental temperature

Outdoor temperature: -20C ~ +45C. Low temperature accessories are required if the temperature is -35C ~ -20C

Environmental humidity Outdoor: 5%RH ~ 95%RH Operation power 380V10%, 50Hz Altitude 1000m. Derating is required if the altitude exceeds 1000m Protection level Electrical control box: IP55; unit: IP20 Note*: The value is positive if the condenser is installed higher than indoor unit; and negative if the indoor unit is installed higher than the condenser

Note When the equivalent distance between the indoor unit and condenser exceeds 30m, see 5.1 Refrigerant Tubing System in Liebert.PEX Series Air Conditioner Technical Manual for the detailed requirement for the line equivalent distance.


4 Chapter 2 Technical Parameters

2.2 Mechanical Parameters

2.2.1 Mechanical Parameters Of Condenser

The condenser appearance and structure with vertical placement is shown Figure 2-1 and the detailed mechanical parameters are listed in Table 2-3.

W

H

LL

H

Front view Side view

Figure 2-1 Appearance and structure (double fans)

Table 2-3 Structure parameters

Dimension (mm) Model

Weight (kg) L H W

Liquid pipe dimension (mm) Discharge pipe dimension (mm)

LSF24 105 1410 980 679 16 22 LSF32 110 1410 980 679 16 22 LSF38 120 1410 980 686 16 22 LSF42 130 1610 1280 686 16 22 LSF52 140 1610 1280 686 22 28 LSF62 150 1910 1280 679 22 28 LSF70 150 1910 1280 679 22 28 LSF76 220 2410 1280 686 22 28 LSF85 230 2410 1280 686 22 28 LDF42 130 1610 1280 686 16 22 LDF52 140 1610 1280 686 16 22 LDF62 160 2110 1280 679 22 28 LDF70 160 2110 1280 679 22 28

2.2.2 Mounting Base Parameters

The condenser can be installed in horizontal and vertical modes. The mounting base is shown in Figure 2-2 during horizontal installation and the detailed mounting base dimensions of each model are listed in Table 2-4.

D DL'

D

H'

D

Part amplified figure

DD

Installtion holes(8 holes in total )

Figure 2-2 Mounting base dimensions



Table 2-4 Mounting base dimensions

Model Dimension (L' H' D) Model Dimension (L' H' D) LSF24 1126 837 53 LSF76 2126 1120 53 LSF32 1126 837 53 LSF85 2126 1120 53 LSF38 1126 837 53 LDF42 1326 1120 53 LSF42 1326 1120 53 LDF52 1326 1120 53 LSF52 1326 1120 53 LDF62 1826 1120 53 LSF62 1626 1120 53 LDF70 1826 1120 53 LSF70 1626 1120 53

Note The installation holes are long and flat holes. It is recommended to use M10 20 bolts to fix the mounting base.

2.3 Performance Parameters

The performance parameters of the condenser include the fan design parameters, heat exchanging capacity, noise parameters and configuration parameters.

2.3.1 Fan Design Parameters

The fan design parameters of the condenser are listed in Table 2-5.

Table 2-5 Fan design parameters

Model Fan No. Diameter

(mm) Rated air flow

(m3/h) Rated speed (rpm) Rated current (A) Rated power (W)

LSF24 1 710 13600 900 1.65 0.88 LSF32 1 710 8150 690 1.05 0.62 LSF38 1 800 15800 650 2.4 1.05 LSF42 1 800 15800 650 2.4 1.05 LSF52 1 800 14000 650 2.4 1.05 LSF62 2 710 25600 900 3.3 1.76 LSF70 2 710 25600 900 3.3 1.76 LSF76 2 800 31600 650 4.8 2.1 LSF85 2 800 28000 650 4.8 2.1 LDF42 1 800 15800 650 2.4 1.05 LDF52 1 800 14000 650 2.4 1.05 LDF62 2 710 25600 900 3.3 1.76 LDF70 2 710 25600 900 3.3 1.76

Note 1. The rated air flow, rated speed, rated current and rated power are the operating parameters supplied by the fan in 400V voltage. 2. The condenser unit power supply is provided in site and its specification is selected following the rated current in Table 2-5. 3. The specification 20AWG (0.52mm2) is recommended for the condenser startup/stop signal cable.


6 Chapter 2 Technical Parameters

2.3.2 Heat Exchanging Capacity

The heat exchanging capacity (unit: kW) of all condenser models are listed in Table 2-6 and Table 2-7.

Table 2-6 Heat exchanging capacity table (R22)

TD* (C) Model

10 12 15 18 20 LSF24 15.3 19.8 26.3 32.3 35.9 LSF32 18.0 23.1 30.5 36.6 41.0 LSF38 24.9 31.8 41.5 50.7 56.6 LSF42 28.6 36.2 47.6 58.1 64.7 LSF52 35.3 44.8 58.9 71.9 80.1 LSF62 43.1 54.6 71.8 87.6 97.6 LDF42 30.0 38.0 50.0 61.0 68.0 LDF52 34.2 43.3 57.0 69.5 77.5 LDF62 45.5 57.6 75.8 92.5 103.1

Note*: TD is the heat exchanging temperature difference of the condenser

Table 2-7 Heat exchanging capacity table (R407C)

TD* (C) Model

10 12 15 18 20 LSF24 11.6 14.4 22.8 29.1 33.6 LSF32 14.2 18.6 27.8 35.1 39.8 LSF38 19.2 25.1 37.6 48.2 54.8 LSF42 21.7 28.5 42.5 54.4 62.1 LSF52 26.7 35.1 52.4 67.1 76.5 LSF62 32.8 43.1 64.4 82.4 94.0 LSF70 34.9 45.8 68.4 87.6 99.9 LSF76 39.8 52.3 78.0 99.8 113.9 LSF85 45.9 60.3 90.0 115.2 131.4 LDF42 22.6 29.7 44.4 56.8 64.8 LDF52 27.7 36.4 54.4 69.6 79.4 LDF62 35.2 46.2 69.0 88.3 100.7 LDF70 37.2 48.9 73.0 93.4 106.6

Note*: TD is the heat exchange temperature difference of the condenser

2.3.3 Noise Parameters

Place the condenser vertically and test the noise of the outdoor fan separately following JB/T 4330-1999. The fan testing voltage is the output voltage of the condenser fan speed controller in noise testing condition. See Table 2-8 for noise testing condition and refer to Figure 2-3 and Figure 2-4 for noise test unit place mode. The noise parameters of all models are listed in Table 2-9.

Table 2-8 Noise test condition (unit: C)

Internal cycle air condition External cycle air condition Dry bulb temperature Wet bulb temperature Dry bulb temperature Wet bulb temperature

23 17 35 -



Air flow

Testing point 1

Testing point 2Testing point 3

Testing point 4Condener

(vertical mode)

ECB

Horizontal difference: the difference between the testing point and the unit shell is 1mVertical difference: the vertical difference from the earth is 1/2 (the unit height +1m)ECB: electrical control box

Figure 2-3 Single fan noise test figure with vertical placement

Air flow

Testing point 1

Testing point 2Testing point 3

Testing point 4Condener

(vertical mode)ECB

Horizontal difference: the difference between the testing point and the unit shell is 1mVertical difference: the vertical difference from the earth is 1/2 (the unit height +1m)ECB: electrical control box

Figure 2-4 Double fan noise test figure with vertical placement

Table 2-9 Noise parameters (unit: dB (A))

Model Actual measured noise GB/T 19413-2003 LSF24 64 68 LSF32 64 71 LSF38 66 71 LSF42 66 71 LSF52 68 73 LSF62 68 73 LSF70 68 73 LSF76 68 73 LSF85 68 73 LDF42 68 71 LDF52 68 73 LDF62 68 73 LDF70 68 73

2.3.4 Configuration Parameters

The condenser uses the fan speed controller to control the fan full load voltage according to the designed loads of all models and decrease the fan noise in the condition of meeting the designed load. The defaulted full load voltage Vmax percentages at factory of all models are listed in Table 2-10.

Table 2-10 full load voltage Vmax percentages at factory

Condenser model Vmax percentage at factory (%) LSF32, LSF70, LDF52, LDF70 100 LSF52, LSF76, LSF85, LDF42 89 LSF38, LSF42, LSF62, LDF62 73

LSF24 65


8 Chapter 3 Fan Speed Controller

Chapter 3 Fan Speed Controller

This chapter expounds the application of the fan speed controller, including control logic, wiring terminals, pressure sensor selection, Human-Machine Interface (HMI), HMI operation, protection function and alarm function.

3.1 Control Logic

The control logic of the fan speed controller is shown in Figure 3-1.

V

PPoff Pset Pvmax Pv100

100Vin

Vmax

Vmin

Vx

Px

A

B C D

EF

GH

I

2bar

1bar 5barPband

Figure 3-1 Control logic figure

The control logic is described as follows:

z Startup control: if the startup condensing pressure is within the set range (Pset, Pset + Pband), the fan speed controller will output Vx; if the startup condensing pressure exceeds the set range (Pset, Pset + Pband), the fan speed controller will output Vmax.

z Operation control: the control logic during operation follows A -> B -> C -> D -> E -> F -> C -> B -> A -> G -> H -> I. The A point is the corresponding point of condensing pressure from B to G.

z Shut down control: when the condensing pressure is less than Poff ( = Pset - 1), the fan speed controller stops supplying power with fan.

z Max. output voltage control: when the condensing pressure exceeds Pv100 ( = Pset + Pband + 5), the fan speed controller supplies 100% input voltage Vin with fan; when the condensing pressure is down to Pvmax ( = Pv100 - 2), the fan speed controller supplies the max. setting voltage Vmax with fan.

Note 1. The boosting pressure process of the system follows the control logic of black line: G -> A -> B -> C -> D -> E and the releasing pressure process follows the control logic of red line: E -> F -> C -> B -> A -> G -> H -> I. The difference between the two processes is the return difference: Pv100 - Pvmax = 2bar and Pset - Poff = 1bar. 2. Pv100 - (Pset + Pband) = 5bar. The definitions, default values and setting ranges of the relative configuration parameters about the control logic are listed in Table 3-1.

Table 3-1 Configuration parameters of control logic

SN Name Default Setting range 1 Startup pressure Pset 13bar 11bar ~ 15bar 2 Pressure control range Pband 5bar 4bar ~ 6bar 3 Min. setting voltage Vmin 30% 30% ~ 50% 4 Max. setting voltage Vmax See Table 2-10 60% ~ 100% 5 Fan configuration number 1 1 ~ 2

6 Sensor type 2: current type 1: voltage type 2: current type


Chapter 3 Fan Speed Controller 9

Note 1. The configured fan number must be the actual fan number, otherwise the alarm will be generated. 2. The configured pressure sensor type must be the same as the used type, otherwise the pressure will not be measured accurately and the deviation will be increased during the control process.

3.2 Wiring Terminals

The wiring terminals are on the fan speed controller board. Their distributions are shown in Figure 3-2 and the definitions are listed in Table 3-2. Refer to Appendix 2 Circuit Diagram for detailed connections.

J9

J3(HP1)J4(HP2)J14(HP2)J15HP1J5(Out Temp)J11(RS232)

J7(Fan1Sta)J10(Fan2Sta)J6(CompSta)

WV

U

L3

L1

L2

PE

J8(SCRTemp)

J17J18

J1

D16 D22

D15LCD and keys

Figure 3-2 Layout of wiring terminals

Table 3-2 Definitions of wiring terminals

Silk print Definition Definition of pins

J1 AC I/O terminal

PE: protection earth L1, L2, L3: three-phase AC input U, V, W: three-phase AC output, which connects with the power supply terminals The middle terminal pin without logo is reserved

J9 Passive dry contactor relay output (for the power switch of fan power supply contactor)

Pin 1: normally closed terminal of relay, which is reserved Pin 2: common terminal of relay, which is used for AC input Pin 3: normally open terminal of relay, which is used for AC output

J3 (HP1) Input terminal of voltage pressure sensor 1 (spare)

J4 (HP2) Input terminal of voltage pressure sensor 2 (spare)

Pin 1: positive terminal of 5V power Pin 2: input terminal of 0.5V ~ 4.5V pressure voltage signal Pin 3: negative terminal of 5V power

J15 (HP1) Input terminal of current pressure sensor 1 J14 (HP2) Input terminal of current pressure sensor 2

Pin 1: positive terminal of 12V power Pin 2: input terminal of 4mA ~ 20mA pressure current signal

J17, J18 Shorting jumpers of current pressure sensor

Current prssure sensor: the short circuit ring must be installed on the shorting jumpers Voltage pressure sensor: the open state of short jumpers must be kept

J5 (Out Temp) Input terminal of environment temperature sensor (spare)

Pin 1: input terminal of temperature signal Pin 2: signal groud

J11 (RS232) Serial communication interface (used for maintenance)

Pin 1: communication ground Pin 2: reception terminal of communication Pin 3: transmission terminal of communication

J7 (Fan1Sta) Detecting terminal of fan 1 over temperaturestate

J10 (Fan2Sta) Detecting terminal of fan 2 over temperature state

Pin 1: output terminal of 19V AC signal Pin 2: return terminal of 19V AC signal



Silk print Definition Definition of pins J6 (CompSta) Detecting terminal of compressor state Note : J8 (SCRTemp) in Figure 3-2 is the interface of fan speed controller board, and not to be used by users

Note 1. If the phase sequence of three-phase AC input (L1, L2 and L3) is connected reversely, the fan speed controller will generate the phase loss alarm A00 and cannot supply the AC output. 2. If the phase sequence of three-phase AC output (U, V and W) is connected reversely, the fan will operate in reverse. 3. If he over temperature detecting terminals (J7, J10) of fan1 and 2, and the compressor detecting terminal (J6) are not connected, you can short them by short cables to make sure the fan speed controller can operate normally. If the terminals are disconnected, the fan speed controller cannot supply the AC output.

3.3 HMI

The fan speed controller can realize the HMI function through indicators, RS232 serial communication port, keys and LCD.

Indicators

There are three indicators (see Figure 3-2) on the fan speed controller board. See Table 3-3 for the functions of indicators.

Table 3-3 Indicator functions

Silk print

Definition Color State Function

On There is 5V power supply on the CPU circuit of fan speed controller board D16 Power indicator Green

Off There is a faulty on fan speed controller board On or off There is a faulty on fan speed controller board

Blinking at 1Hz (slowly) The system is running normally without alarm D22 Run indicator Green Blinking at 5Hz (quickly) There is an alarm or the compressor is shut down

On The control switch which supplies the AC contactor with the driving power is open

D15 Power switch controlling indicator of AC contactor

Red Off

The control switch which supplies the AC contactor with the driving power is closed

RS232 serial communication port

RS232 serial communication port (see J11 in Figure 3-2) provides a port to interface the computer using factory-defined protocol. It is used in factory commissioning and maintenance.

Keys and LCD

The keys and LCD, which can realize the functions in Table 3-4, provide the HMIs for maintenance personnel. Refer to 3.4 Operation Description Of HMI for the detailed operations of keys and LCD HMI.

Table 3-4 Function descriptions of keys and LCD

NO. Function Description

1 Inquiry the acquisition data in real time

The inquiried acquisition data includes condensing pressure, environment temperature, SCR temperature, output percentage

2 Inquiry the current alarm data in real time

The inquiried current alarm data includes phase loss alarm, SCR over temperature, fan 1 over temperature, fan 2 over temperature, pressure sensor failure, EEPROM read fault alram, SCR temperature sensor failure and abnormal frequency

3 Inquiry the historical alarm data in real time

The present 100 historical alarms saved can be inquiried

4 Change the configured parameters in real time

The changed configured parameters include running pressure, pressure controlling range, minimum voltage, maximum voltage, fan number, pressure sensor type; or resume the default values



The keys and LCD are located on the upper right corner of the fan speed controller, as shown in Figure 3-2. Their appearance is shown in Figure 3-3.

LCD

ENT keyDOWN key

ESC keyUP key

Figure 3-3 Keys and LCD

3.4 Operation Description Of HMI

Initial Interface

The LCD will display alternately F01 (the max. pressure logo) and the bigger one of condensing pressure 1 and condensing pressure 2 when the fan speed controller is powered on initially. The key function on initial interface is listed in Table 3-5. The show order is shown in Figure 3-4 (the 16.1 is only an example, and the actual value is determined by the sampling result).

Table 3-5 Key on initail interface

Key Function ESC Used to enter the main menu interface

F01 16.1 F01 16.1

Figure 3-4 Initial interface

Note The pressure value will be displayed as 88.8 on the LCD upon the following occasions: 1. The pressure sensor is not installed. 2. The short jumper caps of terminals J17, J18 used to configure the current pressure sensor is not installed correctly. 3. The pressure sensor is disabled. Main Menu Interface

The main menu interface includes the analog main menu interface F--, current alarm main interface A--, historical alarm main menu interface H-- and configuration main menu interface C--. The key functions of main menu interface are listed in Table 3-6. The switching operation processes and orders are shown in Figure 3-5.

Table 3-6 Key functions of main menu interface

Key Function UP, DOWN Used to switch between the main menu interfaces

ENT Used to enter the submenu interface

F-- A-- H-- C--DOWN keyDOWN keyDOWN key

UPkey

UPkey

UPkey

DOWN key

UP key

Configuration mainAnalog main Current alarmmain interface

Historical alarm mainmenu interface menu interface menu interface

Figure 3-5 Switch figure of main menu interfaces



Analog main menu interface

The key functions of analog main menu interface are listed in Table 3-7. The switching operation processes and orders are shown in Figure 3-6.

Table 3-7 Key functions of analog main menu interface

Key Function UP, DOWN Used to switch between ID

ESC Used to return the analog main menu interface F--

ENT key

DOWN key

ESC key

UP key

F - -F01

F02

F03

F04

F05

F06

16.1

16.1

.0

-15

60

88

Analog main menu Analog submenu showsthe ID and values circulary

Initial interface

Analog ID definitionsF01: the maximum pressure between the

F02: pressure 1F03: pressure 2F04: environment temperatureF05: SCR temperatureF06: output voltage percentage

pressure 1 and pressure 2; 88.8 will beshown when the pressure sensor is disable

Figure 3-6 Switch figure of analog main menu interface

Current alarm main interface

The key functions of the current alarm main interface are listed in Table 3-8. The switching operation processes and orders of the current alarm submenu are shown in Figure 3-7.

Table 3-8 Key functions of the current alarm main interface



No alarm

Current alarmmain interface

ENT key

ESC key

UP key

DOWN keyCurrent alarm ID definitionsA00: Phase loss alarmA01: SCR over temperatureA02: Fan 1 over temperatureA03: Fan 2 over temperatureA04: Pressure sensor failureA05: EEPROM read faultA06: SCR temperature sensor failureA07: Abnormal frequency

A - -

F - -

- - - AXX

AXX

AXX

AXX

or

When there is alarm, the XXof alram ID is number from 00

Figure 3-7 Switch figure of current alarm main interface

Note The alarm generating conditions and troubleshooting are listed in Table 4-2.



Historical alarm main menu interface

The key functions of historical alarm main menu interface are listed in Table 3-9. The switching operation processes and orders of the historical main menu are shown in Figure 3-8.

Table 3-9 Key functions of historical alarm main menu interface



H - -

F - -

1.X

2.X

99.X

0.X

Historical alarm ID definitions

1: SCR over temperature2: Fan 1 over temperature3: Fan 2 over temperature4: Pressure sensor failure

6: SCR temperature sensor failure7: Abnormal frequency

5: EEPROM read fault

0: Phase loss alarm

Historical alarm mainmenu interface

ESC key

UP key

DOWN key

-: No alarmAnalog main menu

ENT key

The radix point is the space mark between the number order andalarm ID. The number is the alarm number and from1 whcih isthe present historical alarm. 0 is the 100th historical alarm. X isthe hiatorical alarm ID. when there is no alarm, '-' will be shown

Figure 3-8 Switch figure of historical alarm main menu interface

Configuration data main menu interface

Note The configuration data main menu interface is designed only for maintenance personnel to set parameters, others are prohibited to operate it. The key functions of configuration data main menu interface are listed in Table 3-10. The switching operation processes and orders of the configuration data main menu are shown in Figure 3-9.

Table 3-10 Key functions of configuration data main menu interface

Key Function

UP, DOWN 1. Used to switch between ID 2. Used to change the ID value

ENT 1. Used to enter the changing interface of ID value 2. Used to ensure the changed ID value

ESC

1. Used to return the configuration main menu interface C-- 2. Used to return the configuration value change submenu interface from the configuration ID selected submenu interface 3. Used to return the configuration value change submenu interface from the prompt interface of successful change



C01

C02

C03

C04

C05

C06

C99

888

13

4

30

100

1

2

C - -

Configuration mainmenu interface

UP key

DOWN key

ESC key

ESC keyENT key

ESC key

ENT key

ENT key

Configuration IDselected submenu

Configuration valuechanged submenu (using

DOWN and UP keys)

C01: Pressure set PsetC02: Pressure band PbandC03: Minimum voltage VminC04: Maximum voltage VmaxC05: Fan numberC06: Sensor typeC99: Resume the default

Configuration ID definitions

Prompt interface ofsuccessful change

Figure 3-9 Switch figure of configuration data main menu interface

3.5 Protection Function

The fan speed controller can provide the protection function according to the acquired information. The detailed protection functions are as follows:

z Compressor operation synchronization protection When the compressor operates normally, the fan speed controller can provide the output control according to the condensing pressure measured value. Otherwise, the fan power supply will be shut off.

z Fan power protection 1 Before starting the fan power output, if the AC abnormal frequency alarm (the normal range of AC frequency is 45Hz ~ 65Hz) is detected, the fan power output will be stopped until the AC frequency is back to be normal.

z Fan power protection 2 If fan over temperature, phase loss alarm and SCR over temperature are generated during single fan configuration, the fan power output will be stopped until there are not the alarms. When the temperature is up to 100C, the SCR cuts the power from the fan; when the temperature is down to 70C, the power to fan is restored.

z Fan power protection 3 When the single fan is configured, if the interval time between two consecutive over temperature alarms of fan 1 is less than 24 hours, the power of fan contactor coil will be cut off and the fan power output will be stopped. After the maintenance personnel resolve the faulty and restart the fan speed controller, the fan re-works.

When the double fans are configured, if the interval time between two consecutive over temperature alarms of both fan 1 and fan 2 is less than 24 hours, the power of fan contactor coil will be cut off and the fan power output will be stopped. After the maintenance personnel resolve the faulty and restart the fan speed controller, the fans re-work.

3.6 Alarm Protection

The fan speed controller can handle the corresponding alarms according to the acquired alarm information. The detailed alarms include:

1. Phase loss alarm 2. SCR over temperature 3. Fan 1 over temperature, 4. Fan 2 over temperature, 5. Pressure sensor failure 6. EEPROM read fault 7. SCR temperature sensor failure 8. Abnormal frequency

See Figure 4-2 for the generating conditions and troubleshooting.


Appendix 1 Condenser Matching Table 15

Chapter 4 Maintenance And Troubleshooting

This chapter gives an introduction to the maintenance and troubleshooting of the condenser. You should check the condenser regularly and solve the problems in time

4.1 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 does 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 airflow is blocked. The direction of inverse airflow is good when the compressed air is used.

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

4. Avoid snow accumulation around the condenser in winter.

Fan

Check that the fan runs normally, check it for problems such as abnormal noise, vibration and bearing failure. If the fan should be replaced, refer to Table 4-1 for selecting the fan models.

Table 4-1 Fan selected model parameters

Model Fan model Fan number Wiring type of fan LSF24 FE071-SDK.6F.V7 1 LSF32* FE071-SDK.6F.V7 1 Y LSF62, LSF70, LDF62, LDF70 FE071-SDK.6F.V7 2 LSF38, LSF42, LSF52, LDF42, LDF52 FE080-ADK.6N.V7 1 LSF76, LSF85 FE080-ADK.6N.V7 2 Note*: when the LSF32 fan should be replaced, you should change the wiring of fan motor from the angle wiring to star wiring Y

Fan speed controller

Check that the fan speed controller board operates normally. If not, replace it in time. The board is installed inside the electrical control box. Refer to Figure 4-1 for assembling.

Fan speed controller boardBolt 2

Bolt 1

Heat sink

Figure 4-1 Removing the fan speed controller board


16 Appendix 1 Condenser Matching Table

Note 1. Seven M4 10 bolts are used to fix the fan speed controller board. The bolt 1 and bolt 2 are used to fix the heat sink. 2. Except for the seven bolts in Table 4-1, other bolts are prohibited to be removed. 3. While installing the fan speed controller board, the bolt 1 and bolt 2, used to fix the heat sink, must be fastened firstly. The heat sink must cling to the floor of the electrical control box. After installing the heat sink, use the other five bolts to fix the fan speed controller board. Pressure sensor

If the standard-configurable pressure sensor fails, follow below to select the model and install.

z Selecting the model of pressure sensor To make sure the precision of the condensing pressure measured value, the pressure sensor should be selected as follows:

1. The same fan speed controller must select the same type of pressure sensors.

2. The configuration of pressure sensor type (see Figure 3-9) must be the same as the used type.

3. The current type pressure sensor must meet: 4mA ~ 20mA corresponds to 0 ~ 30bar; the voltage type pressure sensor must meet: 0.5V ~ 4.5V corresponds to 0 ~ 34bar.

4. Except for the type configuration, all parameters of pressure sensor should be amended by factory to use.

z Installing the pressure sensor The condenser is configured with current type pressure sensor in factory. If the pressure senor should be replaced, the current type pressure sensor is recommended. If the voltage pressure sensor has to be used because of especial condition, refer to the following steps:

1. Remove the current type pressure sensors on J14 and J15 terminals and the jumper caps of the current type pressure sensors on J17 and J18 terminals.

2. Connect the voltage type pressure sensor to J3 and J4 terminals. For the type configuration of pressure sensor, refer to Configuration data main menu interface in 3.4 Operation Description Of HMI.

4.2 Troubleshooting

The troubleshooting of the condenser is listed in Table 4-2.

For alarms, refer to Current alarm main interface in 3.4 Operation Description Of HMI.

Table 4-2 Table of alarm troubleshooting

Alarm number ID

Alarm name Cause Troubleshooting

1. One phase or two phase of three-phase voltage is lost

1. Measure that the three-phase voltage is correct

2. The input connection is reversed 2. Check the input order of wire A00 Phase loss alarm

3. The fan speed controller board has hardware fault

3. Replace the fan speed controller board and compare

1. The fan cannot run normally 1. Check that the fan runs normally A01

SCR over temperature 2. The fan speed controller board has

hardware fault 2. Replace the fan speed controller board and compare

1. The fan cannot run normally 1. Check that the fan runs normally 2. The AC contactor supplying power for fan has fault or its wire cuts off

2. Check the wiring of AC contactor; detect the auxiliary contact state of AC contactor A02A03

Fan 1 over temperature, Fan 2 over temperature

3. Fan speed controller board has hardware fault (the detecting circuit or SCR power supplying circuit has fault)




Alarm number ID

Alarm name Cause Troubleshooting

1. The pressure sensor is not installed or its terminal connection is poor

1. Check the wiring of pressure sensor

2. Jumper caps are not used at shorting terminals J17 and J18 of current pressure sensor

2. Install the jumper cap when the current pressure sensor is configured

3. The pressure sensor failed 3. Replace the pressure sensor and compare

A04 Pressure sensor failure

4. The fan speed controller board has hardware fault


A05 EEPROM read fault

The fan speed controller board has hardware fault

Replace the fan speed controller board and compare

1. The SCR temperature sensor is not installed or its terminal connection is poor

1. Check the wiring of SCR temperature sensors (J8 SCRTemp, see Figure 3-1 for whose position )

2. The SCR temperature sensor failed 2. Replace the SCR temperature sensor and compare A06

SCR temperature sensor failure 3. The fan speed controller has

hardware fault 3. Replace the fan speed controller board and compare

A07 Abnormal frequency

1. The frequency of power supply voltage is wrong 2. The fan speed controller has hardware fault

Replace the fan speed controller board and compare


18 Appendix 1 Condenser Matching Table

Appendix 1 Condenser Matching Table

1. R22 Matching Table

See Table 1 for single system condenser matching relationships.

Table 1 Matching table of single system condensers

See Table 2 for double system condenser matching relationships.

Table 2 Matching table of double system condensers

The matched condensers under different temperatures Model of indoor unit

35C 40C 45C P1020 LSF24 LSF24 LSF32 P1025 LSF32 LSF32 LSF32 P1030 LSF38 LSF38 LSF42 P1035 LSF42 LSF42 LSF52 P2045 LSF52 LSF52 LSF62 P2055 LSF62 LSF62 LSF62 P2040 LSF24 2 LSF24 2 LSF32 2 P2050 LSF32 2 LSF32 2 LSF32 2 P2060 LSF38 2 LSF38 2 LSF42 2 P2070 LSF42 2 LSF42 2 LSF52 2 P3080 LSF52 2 LSF52 2 LSF52 2 P3090 LSF52 2 LSF52 2 LSF62 2 P3100 LSF62 2 LSF62 2 LSF62 2


35C 40C 45C P2040 LDF42 LDF52 LDF52 P2050 LDF52 LDF62 LDF62 P2060 LDF62 - - P2070 - - - P3080 - - - P3090 - - - P3100 - - -



2. R407C Matching Table

See Table 3 for single system condenser matching relationships.

Table 3 Matching table of single system condensers

See Table 4 for double system condenser matching relationships.

Table 4 Matching table of double system condensers


35C 40C 45C P1020 LSF32 LSF32 LSF38 P1025 LSF38 LSF38 LSF38 P1030 LSF42 LSF42 LSF52 P1035 LSF52 LSF52 LSF52 P2045 LSF62 LSF62 LSF76 P2055 LSF70 LSF76 LSF85 P2040 LSF32 2 LSF32 2 LSF38 2 P2050 LSF38 2 LSF38 2 LSF38 2 P2060 LSF42 2 LSF42 2 LSF52 2 P2070 LSF52 2 LSF52 2 LSF62 2 P3080 LSF52 2 LSF62 2 LSF62 2 P3090 LSF62 2 LSF62 2 LSF76 2 P3100 LSF70 2 LSF76 2 LSF85 2


35C 40C 45C P2040 LDF52 LDF52 LDF62 P2050 LDF62 LDF62 LDF70 P2060 - - - P2070 - - - P3080 - - - P3090 - - - P3100 - - -


20 Appendix 2 Circuit Diagram

Appendix 2 Circuit Diagram

2

9

3

10

4

11

5

12

1

8

7

14

6

13

03 03 03 L1 04 04 N 05 0202 02 02

GreenRed

06 06 06 07 08 09 01 01

Wiring terminal block Air circuitbreaker

External power

Shell connecting

N

L1L2L3 PEN

UVW L1L2L3 PE

J3 HP1 J4 HP2 J14 HP2 J15 HP1 J5 OutTemp J11 RS232 J7 Fan1Sta J10 Fan2Sta J6 CompSta

Pressure sensor 2 Compressor signal04Whitle

04Orange

02Yellow

L1

J9 3 2 1

YellowPressure sensor 1

Black Blue Brown White Orange White OlivineYellow

Yellow Orange Blue OlivineBlack Blue Brown Blue Yellow OlivineWhite

3L21L1 5L3 NOA1

4T22T1 6T3 NOA2

01 01 01 01 09

BrownBlue OrangeWhite

Fan

Contacotor 1

TB

U1V1

W1

TB

PE

0101WhiteOlivine

BlackRemark:

1. Connect the pressure sensor 1 only, when PEX condenser is single system.

2. Connect the pressure sensor 1 and 2 with the pipeline of PEX condenser, when PEX condenser is double system.

3. The system adjacent the bottom connects with the pressure sensor 1 and the system

4. Both external power and compressor signal are wired in field.

5. The compressor signal lines should be in parallel and then connected

adjacent the top connects the pressure sensor 2, when PEX condenser is located vertically.

into the electrical controlling board, when the indoor unit is double system.

to the earth

Figure 1 Circuit diagram of the condenser with single fan


Appendix 2 Circuit Diagram 21

2

11

3

12

4

13

5

14

1

10

7

16

8

17

9

18

6

15

04 04 04 L1 06 10 11 05 0303 03 03

YellowGreenRed

07 07 07 08 09 09 09 02 01 02 01

01 01 01 01 09 02 02 02 02 09

UVW L1L2L3 PE

J9 J3 HP1 J4 HP2 J14 HP2 J15 HP1 J5 OutTemp J11 RS232 J7 Fan1Sta J10 Fan2Sta J6 CompSta

06 10 11Brown

N

Blue

N

03L1

3 2 1

Remark:

1. Connect the pressure sensor 1 only, when PEX condenser is single system.

2. Connect the pressure sensor 1 and 2 with the pipeline of PEX condenser, when PEX condenser is double system.

3. The system adjacent the bottom connects with the pressure sensor 1 and the system

5. The compressor signal lines should be in parallel and then connected

adjacent the top connects the pressure sensor 2, when PEX condenser is located vertically.

into the electrical controlling board, when the indoor unit is double system.

4. Both external power and compressor signal are wired in field.

Wiring

Yellow YellowPressure sensor 2 Pressure sensor 1

Whitle OrangeCompressor signal

YellowBlack Blue Brown White

YellowBlack Blue Brown White Brown Orange White OlivineWhite Olivine

Brown Orange Olivine Blue Olivine

3L21L1 5L3 NOA1

4T22T1 6T3 NOA2

Contacotor 1

3L21L1 5L3 NOA1

4T22T1 6T3 NOA2

Contacotor 2

Black Blue Brown White Orange

TB

U1V1

W1

TBPE

0101

TB

U1V1

W1

TBPE

0101

Black Blue Brown White Orange

Air circuitbreaker

Shell connectingto the earth

External power

Fan 1 (remote ) Fan 1 (proximal)

Olivine White Olivine White

terminal

L1L2L3 PEN

block

Figure 2 Circuit diagram of the condenser with double fan


22 Appendix 3 Lifting Figure

Appendix 3 Lifting Figure

See Figure 3 for lifting the condenser package (taking double fan for example).

Note When lifting the package, fix the cable by leading it through the slot at the bottom of the pallet. Otherwise, the cable may slide during the lifting process, and the package may fall to the ground, damaging the pipes within and resulting in system leakage.

Figure 3 lifting figure


OverviewClassification And ModelModel DescriptionAppearance And Structure

Techanical ParametersEnvironmental ParametersParamters Of Storage EnvironmentParamters Of Operation Environment

Mechanical ParametersMechanical Parameters Of CondenserMounting Base Parameters

Performance ParametersFan Design ParametersHeat Exchanging CapacityNoise ParametersConfiguration Parameters

Fan Speed ControllerControl LogicWiring TerminalsHMIIndicatorsRS232 serial communication portKeys and LCD

Operation Description Of HMIInitial InterfaceMain Menu InterfaceAnalog main menu interfaceCurrent alarm main interfaceHistorical alarm main menu interfaceConfiguration data main menu interface

Protection FunctionAlarm Protection

Maintenance And TroubleshootingMaintenanceRefrigeration systemHeat exchangerFanFan speed controllerPressure sensor

Troubleshooting

condenser product manual

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