Table of Contents
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INSTALLATION MANUAL
AIR
CONDITIONER
• Please read this installation manual completely before installing the product.
• Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
• Please retain this installation manual for future reference after reading it
thoroughly.
Applied(AHU)
Control Kit
P/NO : MFL62049610
www.lg.com
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Table of Contents
Related Manuals for LG PRCKD21E
Summary of Contents for LG PRCKD21E
- Page 1 • Please read this installation manual completely before installing the product. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only. • Please retain this installation manual for future reference after reading it thoroughly. Applied(AHU) Control Kit www.lg.com P/NO : MFL62049610...
- Page 2 TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product. WARNING It can result in serious injury or death when the directions are ignored. CAUTION It can result in minor injury or product damage when the directions are ignored. - Page 4 IMPORTANT SAFETY INSTRUCTIONS • Do not twist or damage the power cable. - It may cause fire or electric shock. • During the electric work, request to the specialty store where you purchased the product or the service center. - If you disassemble or repair without authorization, it may cause fire or electric shock. •...
- Page 5 IMPORTANT SAFETY INSTRUCTIONS CAUTION Installation • Do not install in a place with leakage of combustible gas. - If it is installed in a place with leakage of combustible gas, it may cause property damage. • If it is installed in a place like hospital, communication station, etc., provide sufficient protection facil- ity for noise.
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Page 6: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING EN- AHU SENSOR SPECIFI- ERGY CATION IMPORTANT SAFETY IN- AHU SENSOR COVER IN- STRUCTIONS STALLATION(FOR OUT- SIDE INSTALLATION) INSTALLATION COMPO- AHU SENSOR CONNEC- SITION TION Installation composition diagram Cautions during the composition of the ACP/BACNET GATEWAY installation CONNECTION... -
Page 7: Installation Composition
220 V~, 60 Hz 220-240 V~, 50 Hz Installation components Category Applied specification ¿ Air handling unit ¡ Control kit PRCKD21E/41E ¬ Expansion kit unit PATX13A0E/20A0E/25A0E/35A0E/50A0E √ Outdoor unit MULTI V ƒ Pipe temperature sensor IN Sensor: Ø5, length: 10 m, cable color: Black ≈... -
Page 8: Product Composition
Model name è˜äÍêÎê‘ êcòØ - Quantity: 1EA - Maximum number Quantity: PRCKD21E of outdoor units that can be con- nected : 4EA - Number of bolts: Quantity: Quantity: 4EA (M10 / 70 mm) - Number of nuts:... -
Page 9: Accessory
ACCESSORY ACCESSORY Product composition diagram • PRCKD21E/41E (PRCKD41E application) Part name Specification Quantity No. Part name Specification Quantity ① ⑪ Wired remote controller Controller case ② ⑫ Door Fuse AC 250 V, 5 A Wired remote con- ③ ⑬ Polycarbonate, IP65... -
Page 10: Product Dimension
PRODUCT DIMENSION PRODUCT DIMENSION 4-Ø16 hole <Side> <Front side> <Back side> <Bottom side> PRCKD21E/PRCKD41E Remark A (mm) Length B (mm) Height C (mm) Width D (mm) AHU locking hole E (mm) 4-Ø16 hole Pipe sensor insertion part 10-Ø25 hole Sensor/communication line insertion part Ø30 hole... -
Page 11: Wiring Diagram
WIRING DIAGRAM WIRING DIAGRAM Part positioning diagram • PRCKD41E AHU Controller part AHU Controller part AHU Controller part AHU Controller part AHU Controller part Safety parts Safety parts Safety parts Safety parts Safety parts Terminal block part #2 Terminal block part #2 Terminal block part #2 Terminal block part #2 Terminal block part #2... - Page 12 WIRING DIAGRAM • AHU Controller part • Communication PCB part(PRCKD21E) - FUSE1 : 250 V 3.15 A...
- Page 13 WIRING DIAGRAM • Communication PCB part(PRCKD41E) - FUSE1 : 250 V 3.15 A • Safety parts (transformer, short circuit breaker for wiring) (50VA)
- Page 14 WIRING DIAGRAM • Terminal block part #1 • Terminal block part #2...
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Page 15: Installation Flowchart
INSTALLATION FLOWCHART INSTALLATION FLOWCHART CONTROL KIT installation Pipe temperature sensor • 2 outdoor units can be connected to connection communication PCB 1EA, so be careful not to have mixed connection of the pipe temperature sensor and communication Outdoor unit communication line that are connected to 1 outdoor unit. -
Page 16: Control Kit Installation
CONTROL KIT INSTALLATION CONTROL KIT INSTALLATION Product installation location verification - Verify CONTROL KIT installation location in AHU product. Detail 4-Ø12 hole <AHU> Installation location (during product side installation) - Check the location of the holes at the back of CONTROL KIT and whether there is a material for installation. -
Page 17: Product Installation
CONTROL KIT INSTALLATION Product installation - Verify CONTROL KIT installation location in AHU product. <Installation completed> CAUTION - Do not install the product by one person. It may cause injury. - After installation of the product, check if it is fixed properly. -
Page 18: Control Kit Outdoor Box Installation
CONTROL KIT INSTALLATION CONTROL KIT outdoor box - Fix CONTROL KOT inside the installed out- door box. During the fixing, separate the nut installation locked to the bolts inside outdoor box and fix as follows. Outdoor box installation location verification / Punching holes - Verify CONTROL KIT outdoor box installation Washer... -
Page 19: Pipe Temperature Sensor Connection
PIPE TEMPERATURE SENSOR CONNECTION PIPE TEMPERATURE SENSOR CONNECTION - Check IN/OUT of the pipe temperature sensor connected to EXPANSION KIT. Expansion kit (PATX13A0E/ - Pipe temperature sensor IN : 25A0E/35A0E/50A0E) sensor Ø5, length 10M, cable color Black - Pipe temperature sensor OUT : sensor Ø7, length 10M, cable color RED Pipe temperature sensor IN Pipe temperature sensor OUT... -
Page 20: Outdoor Unit Communication Line Connection
OUTDOOR UNIT COMMUNICATION LINE CONNECTION OUTDOOR UNIT COMMUNICATION LINE CONNECTION - Communication line connection • Type: shield cable 2 lines • Diameter: CV 1.25 mm or more • Insulator: PVC • Maximum permitted temperature: 60 °C • Maximum length possible for communication: 1000 m or less - The communication connection between outdoor unit and CONTROL KIT shall be connected as follows. -
Page 21: Cautions
CAUTIONS Cautions during the connection of CAUTIONS the Outdoor unit communication Cautions during Communication line PCB connection - If the power cable and the communication line are connected in parallel, due to the in- 2 EXPANSION KITs and outdoor units can be terference signal generated from the electro- connected to 1 Communication PCB, and in magnetic integration effect, the system may... -
Page 22: Ahu Sensor Specification
AHU SENSOR SPECIFICATION AHU SENSOR SPECIFICATION Sensor/load specification Make sure to use the sensor specification equivalent to the following table for AHU applied sensor. Item Specification Remark - Power: AC 24 V - Input/output signal: DC 0~10 V Damper actuator - Torque: 15 Nm Option - Operation time: 150 sec. -
Page 23: Ahu Sensor Cover Installation (For Outside Installation)
AHU SENSOR COVER INSTALLATION (FOR OUTSIDE INSTALLATION) AHU SENSOR COVER INSTALLATION (FOR OUTSIDE INSTALLATION) If AHU is installed outside, make sure to install the protection box as follows. Example) Temperature, temperature/humidity sensor cover installation Example) Damper actuator cover installation CAUTION •... -
Page 24: Ahu Sensor Connection
AHU SENSOR CONNECTION AHU SENSOR CONNECTION - Sensor / load connection Item Specification Remark - Power: AC 24 V Temperature and - Output signal: DC 0~10 V Mandatory humidity sensor Temperature boundary: -40 °C~70 °C - Temperature Humidity boundary: 0~95 % RH Example) SA temperature and humidity sensor line connection DC 0~10 V (Temperature, U2) DC 0~10 V (Humidity, U1) - Page 25 AHU SENSOR CONNECTION - Temperature sensor(option) Item Specification Remark - Power: AC 24 V Temperature sensor - Output signal: DC 0~10 V Option - Temperature boundary: -50 °C~50 °C Example) SA temperature and humidity sensor line connection DC 0~10 V(temperature, U1) Ground (G0) AC 24 V (G) Terminal block #2...
- Page 26 AHU SENSOR CONNECTION - Damper actuator(option) Item Specification Remark -Power: AC 24 V - Input/Output signal: DC 0~10 V Damper actuator - Torque: 15 Nm Option - Operation time: 150 sec. - Rotation angle: 90˚ Example) OA damper actuator connection DC 0~10 V (Y) DC 0~10 V (U)(feedback) Ground (G0)
- Page 27 AHU SENSOR CONNECTION - Filter pressure difference sensor (option) Item Specification Remark - Power: AC 24 V Filter pressure - output signal: DC 0~10 V Option difference sensor - boundary: 0~1 000 Pa Example) Filter pressure difference sensor connection(voltage type) DC 0~10 V (U) Ground (G0) AC 24 V (G)
- Page 28 AHU SENSOR CONNECTION Item Specification Remark Filter pressure - switch type : Relay open/close Option difference sensor Example) Filter pressure difference sensor connection(Open/Close type) Terminal block #1 Detail Ⓕ *Option SW101 : Dip S/W No. 8 ON CONTROL KIT inside 1.
- Page 29 AHU SENSOR CONNECTION - CO sensor(option) Item Specification Remark - Power: AC 24 V sensor - output signal: DC 0~10 V Option - boundary: 0~2 000 ppm Example) CO sensor connection DC 0~10 V (U) Ground (G0) AC 24 V (G) Terminal block #2 Detail Ⓕ...
- Page 30 AHU SENSOR CONNECTION - Smoke detection sensor (option) Item Specification Remark Smoke detection - Power: AC 24 V Option - Form: contact point type sensor Example) Smoke detection sensor connection Power connection AC 220-240 V Terminal block #2 Detail Ⓕ *Option SW101 1.
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Page 31: Acp/Bacnet Gateway Connection
ACP/BACNET GATEWAY CONNECTION ACP/BACNET GATEWAY CONNECTION ACP/BACnet gateway CONTROL KIT inside 605 of Terminal B/L #1 RS485 – TX 606 of Terminal B/L #1 RS485 – RX 1. For details of ACP/BACnet gateway installation, work by referring to the enclosed manual when you purchased ACP/BACnet gateway. -
Page 32: Rotary Switch Setting
ROTARY SWITCH SETTING ROTARY SWITCH SETTING Rotary switch setting According to the type of the heat source applied to AHU, set the rotary switch. CONTROL KIT inside Rotary switch setting Factory ship-out state Applied heat source Rotary Possible operation Outdoor unit switch mode Cooling Heating... - Page 33 ROTARY SWITCH SETTING Function of each Dip switch Switch name Function For 100% For cooling/ ON: Dehumidification/automatic ven- AHU type (1) Fresh Air heating tilation impossible Outside air tempera- OFF: dehumidification/power saving Applied Not applied ture/humidity sensor impossible Mixing air Preheating is not possible for cool- Applied Not applied...
- Page 34 ROTARY SWITCH SETTING Switch name Function Compact AHU type (2) OFF: follows AHU type (1) setting OA Damper smoke ON: If smoke is detected, damper Full-Open Full-Close removal mode opens EA Damper smoke ON: If smoke is detected, damper Full-Open Full-Close removal mode opens...
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Page 35: Ahu Controller Setting
AHU CONTROLLER SETTING AHU CONTROLLER SETTING Dip switch setting according to AHU Type and whether sensor is applied [Dip switch setting example] Dip switch setting Detail Dip switch setting Detail 1. Applied sensor 1. Applied sensor - RA : Temperature - RA : Temperature and humidity sen- and humidity sen-... - Page 36 AHU CONTROLLER SETTING Dip switch setting Detail Dip switch setting Detail 1. Applied sensor 1. Applied sensor - RA : Temperature - RA : Temperature and humidity sen- and humidity sen- - SA : Temperature - SA : Temperature and humidity sen- and humidity sen- - Humidifier: humid- - Mixing : Tempera-...
- Page 37 AHU CONTROLLER SETTING Dip switch setting Detail Dip switch setting Detail 1. Applied sensor 1. Applied sensor - RA : Temperature - RA : Temperature and humidity sen- and humidity sensor - SA : Temperature - SA : Temperature and humidity sensor, and humidity sen- Pressure sensor 2.
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Page 38: Communication Pcb Setting
COMMUNICATION PCB SETTING COMMUNICATION PCB SETTING Rotary/Dip switch setting CONTROL KIT inside Outdoor unit Outdoor unit communication communication Rotary switch#1 Rotary switch#2 line#1 line#2 Pipe temperature Pipe temperature sensor #1 OUT sensor #2 OUT Pipe temperature Pipe temperature sensor #1 IN sensor #2 IN - According to outdoor unit communication - Adjust rotary switch of the part where out-... - Page 39 COMMUNICATION PCB SETTING Rotary/Dip switch setting - When 3 outdoor units are connected, the example of rotary/Dip switch setting of communica- tion PCB Installation summary diagram Refrigerant pipe EXPANSION (AHU) CONTROL KIT Communication line (Outdoor unit) Rotary/Dip switch setting Communication PCB Outdoor unit Dip switch Rotary switch...
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Page 40: Electrical Connection Work
ELECTRICAL CONNECTION WORK ELECTRICAL CONNECTION WORK Electrical connection - Example) Fan motor connection Motor Earth leakage circuit breaker Magnetic contactor Site connection Factory connection MC(RA) MC(SA) E(RA) E(SA) DC 12V Adaptor Adaptor Motor power supply POWER SUPPLY 3 phase 220~240 V~, 50 Hz 220 V~, 60 Hz CABLE : OVER CV 2.5 mm Select and use standard products(power cable/ Earth leakage circuit breaker /magnetic con-... - Page 41 ELECTRICAL CONNECTION WORK - Example) Humidifier solenoid valve connection (ON/OFF) solenoid valve Sol. Site connection Factory connection Sol. DC 12V Adaptor Adaptor POWER SUPPLY : 220-240 V~, 50 Hz / 220 V~, 60 Hz CABLE : OVER CV 2.5 mm - Example) Inspection lamp connection Site line connection Factory line connection...
- Page 42 ELECTRICAL CONNECTION WORK - Example) Rotary wheel heat exchanger motor(three phase) connection motor Earth leakage circuit breaker Magnetic contactor Site line connection Factory line connection DC 12V Adaptor Adaptor POWER SUPPLY : 220-240 V~, 50 Hz / 220 V~, 60 Hz Motor power supply CABLE : OVER CV 2.5 mm 3 phase...
- Page 43 ELECTRICAL CONNECTION WORK - Example) Rotary wheel heat exchanger motor(single phase) connection motor Earth leakage circuit breaker Magnetic contactor Site line connection Factory line connection Motor power supply POWER SUPPLY : 220-240 V~, 50 Hz / 220 V~, 60 Hz 1 phase CABLE : OVER CV 2.5 mm...
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Page 44: Cautions
ELECTRICAL CONNECTION WORK Cautions • Make sure to have CONTROL KIT grounded. • For regulations related to electric facility and power cable, follow the regulations of the WARNING government technical standard agency and the guideline of the power company. - Make sure to have CONTROL KIT grounded. -
Page 45: Test Operation
TEST OPERATION Cautions TEST OPERATION After supplying power into CONTROL KIT, Check list before test operation check if it is displayed in the following order on AHU Controller 7segment. Operate with the operation mode of the wired If ‘6’ is displayed on 7segment, operation be- remote controller of CONTROL KIT as ‘wind comes possible. -
Page 46: Wired Remote Controller
TEST OPERATION Wired remote controller Name of each part of wired remote controller Control Description panel Operation display window Temperature adjustment button Wireless remote controller reception part - AHU wired remote controller does not receive wireless remote controller sig- nal. Ventilation button - It does not work with AHU. -
Page 47: Wired Remote Controller Installation Method
TEST OPERATION Wired remote controller in- After fixing the top parts of the remote con- troller to the wired remote controller installa- stallation method tion plate as in the figure, push the bottom part to combine the remote controller and the - Connect remote controller cable to the wired wired remote controller installation plate. -
Page 48: Self Diagnosis Function
SELF DIAGNOSIS FUNCTION SELF DIAGNOSIS FUNCTION Error display This function displays the type of the disorder during the self diagnosis on AHU and when a dis- order occurred. The disorder display displays the code in the following table on wired remote controller and AHU Controller 7segment LED. -
Page 49: Error Display(Ahu)
SELF DIAGNOSIS FUNCTION Error display(AHU) ‘##’ means the address information of communication PCB. Display Error occurred Error category Cause of Error occurrence number location When sensor value is within error Wrong connection of Connected sensor boundary due to the wrong connec- sensor type tion of the sensor. -
Page 50: Example Of Error Occurrences
SELF DIAGNOSIS FUNCTION Display Error occurred Error category Cause of Error occurrence number location If it is within the error boundary due CH 15 00 CO sensor defect to the CO sensor disconnection/ short circuit/single unit defect. If the sensor value due to the pres- Pressure difference sure sensor (pressure difference, Pressure sensor de-...