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24

AHU SENSOR CONNECTION

ENGLISH

- CO

2

sensor

Ex: CO

2

Sensor Connection

1. For more information on the installation of CO

2

sensors, refer to the Manual that came

with the sensor.

2. Make sure to finish all the sensor wires with a flexible tube.

3. The setting for the CO

2

sensor can be changed in the setting section of the HMI.

Item

Specification

Remark

CO

2

sensor

- Power: AC 24 V
- Output Signal: DC 0~10 V
- Range: 0~2 000 ppm

Optional

CAUTION

!

• Improper wiring of the sensor can damage the AHU CONTROL KIT. Make sure to check for

any incorrect wiring before turning the power on.

UI3

DC 0~10 V(Y, Feedback)

<Terminal block>

<UI module>

Ground (G0)

Ground (G0)

AC 24 V(G)

AC 24 V(G)

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Содержание PAHCNM000

Страница 1: ... reference after reading it thoroughly Applied AHU AHU CONTROL KIT Original instruction Representative LG Electronics Inc EU Representative LG Electronics European Shared Service Center B V Krijgsman 1 1186 DM Amstelveen The Netherlands Manufacturer LG Electronics Inc Changwon 2nd factory 84 Wanam ro Seongsan gu Changwon si Gyeongsangnam do KOREA www lg com Copyright 2019 2020 LG Electronics Inc A...

Страница 2: ...ce center or a professional installation agency Otherwise it may cause fire electrical shock explosion or injury WARNING This indicates that the failure to follow the instructions can cause serious injury or death CAUTION This indicates that the failure to follow the instructions can cause the minor injury or damage to the product This symbol is displayed to indicate matters and operations that ca...

Страница 3: ...ck Do not install the product in a place where there is the concern of falling down Otherwise it may result in personal injury Use caution when unpacking and installing Sharp edges may cause injury Always ground the product There is risk of fire or electric shock Do not install the product on a non parallel or defective installation stand It may cause injury accident or damage to the product Opera...

Страница 4: ...f a heat exchanger or pipe Operation If anyone other than a licensed Professional installs repairs or alters LG Electronics Air Conditioning Products the warranty is voided All costs associated with repair are then the full responsibility of the owner This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and ...

Страница 5: ...figuration 15 PIPE THERMISTOR CONNECTION 16 OUTDOOR UNIT COMMUNICATION LINE CONNECTION 16 Cautions on connecting the EEV module communication module with outdoor unit 16 Capacity Control Communication Cable Connection 17 INSTALLATION AND WIRING METHOD OPTIONAL 17 Installation method when adding EEV module 17 Wiring method when adding EEV module 18 AHU SENSOR SPECIFICATION 20 AHU SENSOR CONNECTION ...

Страница 6: ...as Sensor Ø 7 NTC 5 kΩ Length 5 m Cable color Red 1 2 Temperature humidity sensor RA SA Optional 1 2 Ventilation Fan Supply Fan 1 2 Inverter drive kit Main power switch board MCC switch board panel HMI Caution on installation layout MCC is part of the installation construction to be performed by the equipment supplier so confer with the supplier before installing the product Temperature humidity s...

Страница 7: ...A Product Operating Environment Conditions Operating Temperature 20 65 C DB Humidity 0 98 Use the appropriate flexible tubing and connectors for the corresponding holes Classification Spec Description W mm 500 Width H mm 500 Height D mm 210 Depth A mm 552 Distance between wall mounting brackets B mm 486 C 22 5Ø Hole 10 EA Power cable Sensor Communication line insert part PRODUCT DIMENSION Product ...

Страница 8: ...Spec Qty Main module DC 12 V 1 NFB No Fuse Breaker 15 A 1 5 kA 1 UI module DC 12 V 1 Adaptor 220 V DC 12 V 1 UO module DC 12 V 1 Trans 220 V AC 24 V 1 EEV module 1 DC 12 V 1 Terminal Block 15 PIN 1 EEV module 2 DC 12 V 1 Terminal Block Single phase 220 V 60 Hz 1 EEV module 3 DC 12 V 1 PARTS LAYOUT ...

Страница 9: ...d be connected to the DCOM terminal Failure to do so could result in the malfunctioning of the product In order to use the UI module s emergency shutdown and differential pressure switch functions the UI module s 12V terminal should be connected to the DCOM terminal Failure to do so could result in the malfunctioning of the product WIRING DIAGRAM PAHCNM000 ...

Страница 10: ...on After mounting the product check whether it is properly affixed If the control kit has to be installed outdoors be sure to also install an enclosure When installing load devices such as AHU sensors and dampers outdoors fitted covers must also be mounted to protect them from the effects of the external environment 26 26 486 552 Back Side of Control Kit AHU CONTROL KIT INSTALLATION Determining th...

Страница 11: ...heck the tightness of the connection between the AHU and the enclosure If the connection is not airtight moisture or dust could contaminate the product When installing the AHU outdoors be sure to use an enclosure to protect the control kit The enclosure should be made of SUS or painted sheet metal to prevent corrosion Make the structure so that it is easy to perform wiring tasks The installation f...

Страница 12: ...he Safety Grade must be IP 56 or higher If the cover is not installed rainwater can flood the sensor causing it to malfunction Sensor Cover Installation outdoors When installing the AHU outdoors make sure to install the protection box as shown below Ex Installation of a temperature and temperature humidity sensor covers Ex Installation of a damper actuator cover ...

Страница 13: ... UO module are configured in the following order The default setting of the DIP switches for the main module UI module and UO module is OFF Do not change the settings arbitrarily Main Module UI Module UO Module EEV Module The default setting for all DIP switches is OFF factory condition Main Module UO Module UO Module UI Module Main Module UI Module AHU CONTROL KIT SETTINGS Check Module Configurat...

Страница 14: ...kBtu h OFF OFF OFF OFF 2 1 7 OFF OFF OFF ON 2 5 9 OFF OFF ON OFF 3 5 12 OFF OFF ON ON 5 6 18 OFF ON OFF OFF 7 1 24 OFF ON OFF ON 8 2 28 OFF ON ON OFF 10 6 36 OFF ON ON ON 12 3 42 ON OFF OFF OFF 14 1 48 ON OFF OFF ON 22 4 76 ON OFF ON OFF 28 0 96 ON OFF ON ON 33 6 115 ON ON OFF OFF 39 2 134 ON ON OFF ON 44 8 153 ON ON ON OFF 50 5 172 ON ON ON ON 56 4 192 Sequence SW2 Address Remark 1 2 3 4 EEV 1 OF...

Страница 15: ...Black Pipe Temperature Sensor OUT Ø 7 Length 5m Color Red Pipe out Thermistor Pipe in Thermistor Connect the flexible tube and connector Ø16 installed on the site from the AHU to the Control Kit Connect the pipe IN and OUT Thermistor in the EEV module connector PIPE THERMISTOR CONNECTION Check the IN OUT of the pipe thermistor connected to the AHU ...

Страница 16: ...control the SA temperature in the control kit the central control communication line must be additionally connected Please refer to the wiring diagram and the figure below for details For models without a central control communication modem a central control communication modem must be installed separately to control the supplied air s temperature OUTDOOR UNIT COMMUNICATION LINE CONNECTION Caution...

Страница 17: ...d in the last EEV add on module 1 Pull the supporter of the EEV module to both sides 2 Using holes inside of AHU CONTROL KIT M4 screws 2EA and extended supporter s holes for Installation Ex When add 3EA more EEV module RS485 BUS A Inverter Drive kit RS485 BUS B Inverter Drive kit 12 V 12 V 12 V GND GND GND Main module Wiring diagram UI module UO module EEV module Wiring method when adding EEV modu...

Страница 18: ... DC 0 10 V Range 0 1 000 Pa CO2 sensor Power AC 24 V Output signal DC 0 10 V Range 0 2 000 ppm Smoke Detector Power AC 24 V Type Contact CAUTION Our AHU doesn t support resistance type sensors Using an resistance type sensor can cause a discrepancy between the actual temperature and measured temperature which can cause the product to malfunction Please install a voltage type sensor as shown above ...

Страница 19: ...rmistor Optional Thermistor Optional Temperature humidity sensor Required CO2 sensor Optional Smoke Detector Optional Sensor installation location CAUTION The AHU may not start or function properly if the sensor is not installed in the location specified in the picture above Temperature humidity sensors must be installed on the SA supply RA ventilation ducts before the product can run normally The...

Страница 20: ...cause the unit to malfunction However the temperature range can be adjusted in HMI Settings Item Specification Remark Temperature humidity sensor Power AC 24 V Output signal DC 0 10 V Temperature range 40 C 70 C Humidity range 0 95 RH Optional CAUTION Improper wiring of the sensor can damage the AHU CONTROL KIT Make sure to check for any incorrect wiring before turning the power on DC 0 10 V Tempe...

Страница 21: ...ature range different from the above specifications can cause the unit to malfunction However the temperature range can be adjusted in HMI Settings Item Specification Remark Thermistor Power AC 24 V Output signal DC 0 10 V Temperature range 50 C 50 C Optional CAUTION Improper wiring of the sensor can damage the AHU CONTROL KIT Make sure to check for any incorrect wiring before turning the power on...

Страница 22: ...res with a flexible tube Item Specification Remark Damper Actuator Power AC 24 V Input Output Signal DC 0 10 V Torque 15 Nm Operation Time 150 s Rotation Angle 90 Optional CAUTION Improper wiring of the damper actuator can damage the AHU CONTROL KIT Make sure to check for any incorrect wiring before turning the power on DC 0 10 V U Output AO1 UI4 DC 0 10 V Y Feedback Main module Terminal block UI ...

Страница 23: ...n of a filter differential sensor refer to the Manual that came with the sensor 2 Make sure to finish all the sensor wires with a flexible tube 3 The setting for the filter differential pressure can be changed in the setting section of the HMI CAUTION Improper wiring of the sensor can damage the AHU CONTROL KIT Make sure to check for any incorrect wiring before turning the power on UI2 DC 0 10 V Y...

Страница 24: ...exible tube 3 The setting for the CO2 sensor can be changed in the setting section of the HMI Item Specification Remark CO2 sensor Power AC 24 V Output Signal DC 0 10 V Range 0 2 000 ppm Optional CAUTION Improper wiring of the sensor can damage the AHU CONTROL KIT Make sure to check for any incorrect wiring before turning the power on UI3 DC 0 10 V Y Feedback Terminal block UI module Ground G0 Gro...

Страница 25: ...ker EOCR TR 220 V 24 V ELB RA Electrical Wiring if using a belt driven fan If the supply air return air fan is driven by a constant speed motor the motor can be powered using the main switchboard s magnetic contactor Always install an earth leakage breaker when connecting a constant speed motor Refer to Technical Standards for Electrical Equipment for installation standards for earth leakage break...

Страница 26: ...ir Supply air L N Humidifier Solenoid Valve Connection AHU control kit DO4 L N Main module On site wiring AC 220 AC 24 V transformer TR Magnetic Contactor MC Solenoid valve S S MC or Relay TR 220 V 24 V Connect the electric wires Humidifier Solenoid Valve Connection ...

Страница 27: ... the Control Kit could result in fire or electric shock Do not install the power lines or communication lines of external equipment in the Control Kit s internal duct pipe Things to keep in mind when installing the Control Kit on site When installing the AHU Control Kit on site if any drilling is required at the top or side please observe the following work standards Take precautions to prevent fo...

Страница 28: ...tion function History Search error history Setup System setting function 3 Air conditioner control Run the air conditioner control icon in the home menu to configure air conditioner operation Item Description Target temperature Display current temperature and set target temperature On Off System On Off function Operation Mode Select operation mode Airflow Set airflow and set control criteria Dampe...

Страница 29: ...w 3 3 Operation Mode Run the Operation Mode icon to select the desired operation mode The Outdoor Air Cooling Mode only becomes activated when a return air temperature and humidity sensor and an outdoor temperature and humidity sensor are installed If the product type is set to Dedicated Outdoor Air the Outdoor Air Cooling Mode will be disabled 3 2 On Off Run the On or Off icon to perform an On Of...

Страница 30: ...e criteria If the fan s operation criteria is set to static pressure you can perform static pressure following operation by comparing the set standard static pressure with the supply air static pressure Control cycle 3 60 minutes Standard static pressure range 100 1000 Pa Set frequency input window 3 4 3 Temperature criteria If the fan s operation criteria is set to temperature you can perform tem...

Страница 31: ...ampers 3 6 Humidity Run the Humidity icon to set the target humidity value Humidity setting range 30 80 3 7 Control Mode Run the Control Mode icon to set local remote and scheduled operation When Local Mode is set the control function is performed through the HMI installed in the Control Kit and only remote monitoring is possible When Remote Mode contact modbus LGAP is set the air conditioner can ...

Страница 32: ... the system 3 8 Additional Operation Run the Additional Operation icon to set additional functions that can be used 5 Settings Run the Setting icon on the home menu to set the installer screen and system 5 1 Installer Settings Run the Installer icon on the Settings screen to enable a variety of settings for the operation of the air conditioner Set installer screen ...

Страница 33: ...Warming up operation only circulates indoor air with the outdoor air and exhaust dampers closed so that the indoor load can be quickly removed Settable time 0 180 minutes Automatic control address You can set the automatic control address Set to decimal Since ACP uses hexadecimal set to decimal when connecting ACP ex ACP 0x29 address 41 Settable address range 1 247 Return air RA fan count Set the ...

Страница 34: ... the number of outdoor units according to the set temperature Heating heat source value input range 30 50 C Item Description Fan Off On during defrost When running defrost in an outdoor unit the fan s operation status is set based on the supply air temperature and piping temperature Set the fan off temperature based on the supply air temperature Air conditioner 20 35 C Dedicated outdoor air unit 1...

Страница 35: ...e Sets whether temperature sensors are installed in the mixed chamber Static pressure supply air SA Sets whether static pressure sensors are installed on the supply air side When a static pressure sensor is installed you can control static pressure based airflow Item Description Differential pressure filter alarm level Sets whether a filter differential pressure sensor is installed Differential pr...

Страница 36: ...e based on the operating range of the installed flow sensor minimum 0 20 m s maximum 0 20 m s CO2 Sets the sensor range based on the operating range of the installed CO2 sensor minimum 0 990 PPM maximum 1000 2000 PPM 5 1 4 Smoke Control Operation Setting Run the Smoke Control Operation Setting icon on the Installer Setting screen to set the smoke control operation If the text Fire appears on the 7...

Страница 37: ...nge 0 60 Hz Supply air fan Sets the operating status for the supply air fan in Test Run mode Setting range 0 60 Hz Outdoor air OA damper Sets the operating status for the outdoor air damper in Test Run mode Setting range 0 90 Exhaust air EA damper Sets the operating status for the exhaust air damper in Test Run mode Setting range 0 90 5 1 5 Test Run Setting Run the Test Run Setting icon on the Ins...

Страница 38: ...tting icon on the Installer Setting screen to set or change the password for the HMI 5 2 Screen Setting Run the Screen icon on the Setting screen to set the screen protector for the HMI 5 3 System Setting Run the System icon on the Setting screen to enable a variety of HMI system settings such as date time language and operating time display system setting screen_regular system setting screen_adva...

Страница 39: ... screen to add a schedule After inputting the schedule name and schedule on the Add screen click on the Next button to go to the Air Conditioner Control screen Once the air conditioner operation setting is completed in the Air Conditioner Control screen the scheduled operation will be added normally 7 2 Edit Schedule If you need to edit a schedule select the date that you wish to edit to go to the...

Страница 40: ...col provided for connecting external devices to Modbus Physical Layer RS 485 Serial Line Mode MODBUS RTU Mode Baud Rate 9 600 Parity None Parity 1 Stop Bit Applied Function Code Refer to the Modbus protocol in the appendix Function Code Sub Function Function Name Start Address form Master Device 0x01 None Read Coil Register Address 1 0x02 None Read Discrete Input Register Address 10001 0x03 None R...

Страница 41: ...3 Operating Status 0 Off 1 On 20 0x0013 19 10020 Return Air FAN 4 Operating Status 0 Off 1 On 21 0x0014 20 10021 Return Air FAN 5 Operating Status 0 Off 1 On 22 0x0015 21 10022 Return Air FAN 6 Operating Status 0 Off 1 On 23 0x0016 22 10023 Reserved 24 0x0017 23 10024 Reserved 25 0x0018 24 10025 Supply Air FAN 1 Operating Status 0 Off 1 On 26 0x0019 25 10026 Supply Air FAN 2 Operating Status 0 Off...

Страница 42: ...99 9 99 9 C X 10 14 0x000D 13 30014 Supply air humidity Humidity range 0 100 0 X 10 15 0x000E 14 30015 Outdoor air temperature Temperature range 99 9 99 9 C X 10 16 0x000F 15 30016 Outdoor air humidity Humidity range 0 100 0 X 10 17 0x0010 16 30017 Mixed temperature Temperature range 99 9 99 9 C X 10 20 0x0013 19 30020 Cold water valve Voltage range 0 10 000 mV 21 0x0014 20 30021 Hot water valve V...

Страница 43: ... Cooling 2 Fan 4 Heating 53 0x0034 52 30053 Outdoor Unit1 Pipe Temperature IN Temperature range 99 9 99 9 C X 10 54 0x0035 53 30054 Outdoor Unit1 Pipe Temperature OUT Temperature range 99 9 99 9 C X 10 61 0x003C 60 30061 Outdoor Unit2 Address 2 62 0x003D 61 30062 Outdoor Unit2 Operating Mode 0 Cooling 2 Fan 4 Heating 63 0x003E 62 30063 Outdoor Unit2 Pipe Temperature IN Temperature range 99 9 99 9 ...

Страница 44: ...an high frequency setting 30 60 50 Hz 39 0x0026 38 40039 Supply air fan medium frequency setting 30 60 40 Hz 40 0x0027 39 40040 Supply air fan low frequency setting 30 60 30 Hz 42 0x0029 41 40042 Cooling outside air damper opening setting Opening range 0 90 43 0x002A 42 40043 Cooling exhaust damper opening setting Opening range 0 90 44 0x002B 43 40044 Cooling mixed damper opening setting Opening r...

Страница 45: ...le Error among Comm EEV 3 xxx Same as LGAP Indoor Outdoor ErrorCode CH 1 4 xxx CH 1 4 xxx ODU 4 Module Error among Comm EEV 4 xxx Same as LGAP Indoor Outdoor ErrorCode CH 1 7 xxx Reserved Error Grade Grade Standard Output 1 Fire detection Alarm 1 2 Error occurs with limited functionality Alarm 2 3 Errors that do not affect functionality Alarm 3 CH X X XXX Error Code Error AHU fixed at 1 Error Cate...

Страница 46: ...idity sensor error Reserved CH10013 Return air flow sensor error 2 Sensor short circuited or disconnected CH10016 Return air thermistor faulty connection 2 Faulty connection of sensor power and signal line CH10017 Return air humidity sensor faulty connection 3 Faulty connection of sensor power and signal line CH10018 Return air flow sensor faulty connection 2 Faulty connection of sensor power and ...

Страница 47: ...d Reserved CH10041 CH10050 Sensor type mixed air CH10041 Mixed air thermistor error 2 Sensor short circuited or disconnected CH10044 Mixed air damper feedback error 3 In case of 10 difference from target opening CH10046 Mixed air thermistor faulty connection 2 Faulty connection of sensor power and signal line CH10049 Mixed air damper feedback faulty connection 3 Reserved Others Reserved Reserved C...

Страница 48: ...error 2 Sensor short circuited or disconnected CH11005 ODU1 communication fault indoor unit outdoor unit 2 Haven t received a communication signal from outdoor unit for more than 3 consecutive minutes CH11006 ODU1 indoor sensor exit pipe error 2 Sensor short circuited or disconnected CH11255 Communication error between ODU1 central controls 2 Haven t received a central control communication signal...

Страница 49: ...cation error between ODU3 central controls 2 Haven t received a central control communication signal from ODU 3 for more than 3 consecutive minutes error occurs only when the target temperature control criteria is supply air CH13XXX ODU3 outdoor unit error code displayed as is 2 If an error occurs in the outdoor unit communicating with indoor unit 3 of COM 3 the code is displayed as is CH14001 CH1...

Страница 50: ...50 ENGLISH ...

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