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INSTALLATION MANUAL
Low Ambient Control Kit
• 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.
MODEL : PRVC2
❈ PRVC2 is available only for the Multi-V IV model
(PRVC2 can not be installed for the previous Multi-V IV model)
P/NO : MFL42540228
www.lg.com
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Summary of Contents for LG Low Ambient Control Kit
- Page 1 INSTALLATION MANUAL Low Ambient Control Kit • 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.
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Page 2: Table Of Contents
Low Ambient Control Kit Installation manual TABLE OF CONTENTS ■ Safety Precautions ................3 ■ Accessory Parts ..................6 ■ Name of each Part ................7 ■ Installation Method ................8 1. IO Module Installation Method............8 2. Transformer, Terminal Block Installation Method......10 ■ Setting and Using Method ..............12 1. -
Page 3: Safety Precautions
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury. - Page 4 Do not use a heater near power lines arbitrarily. product. the power line. • If you give a shock to the • Cause fire or electric shock. • Cause fire or electric shock. product, it may cause the product’s failure. 4 Low Ambient Control Kit...
- Page 5 Safety Precautions Do notspill water inside of If the product has been Children and elderly use the the product. inundated, you must refer to product under the a service center or guardian’s supervision. installation shop. • Cause electric shock or •...
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Page 6: Accessory Parts
Accessory Parts Accessory Parts IO Module Bracket 1 Terminal Block (2EA) Bracket 2 Manual Screw (9EA) Cable (3EA) Tie (2EA) Clamp Transformer 6 Low Ambient Control Kit... -
Page 7: Name Of Each Part
Name of each Part Name of each Part ① Main connector : Power input and communication connector with Outdoor unit ② SW104 : Rotary Switch for setting Demand control step ③ Digital Output : Operating & Error status Relay output (250V, 1A) ④... -
Page 8: Installation Method
③ Assemble IO Module and bracket. ④ Connect the connection wires according to the instructions. (Please refer to Setting and Using Method) Main board connector CAUTION Be sure to turn off outdoor unit power before installation. 8 Low Ambient Control Kit... - Page 9 Installation Method ⑤ Fix and fasten components and cables. ⑥ Perform the switch setting according to the instructions. Installation manual 9...
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Page 10: Transformer, Terminal Block Installation Method
⑬ Set up the Dip S/W of Main Outdoor unit PCB. (Refer to page 21 for details) ⑭ Turn on the main power of outdoor unit. ⑮ Check the signal to CN1_A0(AO_01,GND) of IO Module and Air Damper. Clamp Transformer Bracket 2 Terminal Block 10 Low Ambient Control Kit... - Page 11 Setting and Using Method Using the Clamp and Tie, fasten the Damper Actuator output cable and Trans output cable as below. Actuator Wire Installation manual 11...
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Page 12: Setting And Using Method
Setting and Using Method Setting and Using Method 1. Wiring Diagram 12 Low Ambient Control Kit... -
Page 13: Power Source Input
* Priority setting Using ‘Priority setting’ contact signal, set the priority of command. (External command from DDC Vs Command from LG central controller.) - Close : Central controller has priority to external signal. - Open : External signal has priority to central controller. - Page 14 • Power lines (including power supply to air conditioner) and signal lines must not be laid inside the same. • In the same way, when grouping the lines power and signal lines should not be bunched together. 14 Low Ambient Control Kit...
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Page 15: Io Module - Low Ambient Kit Function
Setting and Using Method 3. IO Module - Low Ambient Kit Function Setting of Dip Switch Using ‘SW101’, ‘SW102’, You can use Low Ambient Kit Mode SW102 SW101 Notes Default status is all off. Set Low Ambient Kit Operation Position Setting of Dip Switch SW101 - L1=ON L2=ON... -
Page 16: Io Module - Other Function
ON : Activate Digital Output according to Indoor Unit status OFF : Activate Digital Output according to Outdoor Unit status L1 2 3 4 CAUTION After change Dip SW setting, press reset switch to reflect the setting. 16 Low Ambient Control Kit... - Page 17 Setting and Using Method Using ‘SW102’, set the internal function as described below. Notes Default status is all off. • L1 : Set Analog output default value when Communication Error will be occur (Module – ODU) Position Function ON : Analog output 0V OFF : Analog output 10V L1 2 •...
- Page 18 • When operation rate is 100%, Target Evaporating Temp. and Target Condensing Temp. can be changed by installation option. (Refer to product data book) • Input_1 : 0 Έ OFF, Input_1 : 1 Έ ON 18 Low Ambient Control Kit...
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Page 19: Wiring For Damper Actuator
Setting and Using Method 5. Wiring for Damper Actuator 1 Unit Power Module Main PCB AC 220V Transformer IO Module Damper Actuator Terminal Block DC 0~10V Control Signal AC/DC 24V ❈ BL : Blue, BR : Brown, RD : Red, BK : Black, WH : White, GR : Green Notes Damper Actuator can accept only DC 24V power input. - Page 20 The IO Module can control maximum three actuators. Case of one valve, the slave signal connecter must not use. The power (AC/DC 24V) and signal(DC 0~10V) line is recommended by AWG22(1/32 in, (0.644 mm), 0.016 Ω/ft (0.053 Ω/m)). 20 Low Ambient Control Kit...
- Page 21 Setting and Using Method 3 Unit Power Module Main PCB AC 220V IO Module Transformer Damper Damper Damper Actuator Actuator Actuator Terminal Block Notes Damper Actuator can accept only DC 24V power input. Do not input AC power. Otherwise it will cause a serious damage. The IO Module can control maximum three actuators.
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Page 22: Setting Of Outdoor Unit Dip Switch
❈ If you want to stop the Low Ambient Kit mode, refer to the following. ▷ Dip Switch No.5 On -> “Func” -> “Fn10” -> “Off” ❈ Fn10 Model : ARUB***BTE4 ARUB***DTE4 ARUB***LTE4 Fn11 Model : ARUN***BTE4 ARUN***DTE4 ARUN***LTE4 ARUN***LTS4 22 Low Ambient Control Kit... -
Page 23: Installation Method Of Snow Hood And Air Damper
Installation Method of Snow Hood and Air Damper Installation Method of Snow Hood and Air Damper 1. One Unit with Snow Hood and Air Damper One Unit with Snow Hood and Air Damper Installation manual 23... -
Page 24: Two And Three Units With Snow Hood And Air Damper
Installation Method of Snow Hood and Air Damper 2. Two and Three Units with Snow Hood and Air Damper Two Units with Snow Hood and Air Damper Three Units with Snow Hood and Air Damper 24 Low Ambient Control Kit... -
Page 25: Unit Placement And Clearances
Installation Method of Snow Hood and Air Damper 3. Unit Placement and Clearances 1. Outdoor units should be located in an area protected from prevailing winds. (shown below) In high wind locations it may be advisable to locate the units within a walled area. Top View Prevailing wind Building Wall... - Page 26 Installation Method of Snow Hood and Air Damper 3. When the distance is less than 7-7/8in(200mm) between outdoor units, do not necessary installation of side Snow Hood as below. 7-7/8in(200mm) 7-7/8in(200mm) 7-7/8in(200mm) 26 Low Ambient Control Kit...
- Page 27 Installation Method of Snow Hood and Air Damper 4. If units are placed further than 7-7/8in(200mm) apart, additional snow hoods may be required. Installation manual 27...
- Page 28 Installation Method of Snow Hood and Air Damper 28 Low Ambient Control Kit...
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