LG PRCKA1 Installation Manual Download Page 7 | Manualshive

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LG PRCKA1 Installation Manual Download Page 7

SUPPLIES

7

ENGLISH

PRCKA1

Compo-

nents

AHU Comm.

Kit

Room

thermistor

Pipe

thermistors

Installation

Manual

Bracket

Option PCB

P/NO

AJT57850914 EBG61106821

EBG61287703(In)

EBG61287704(Out)

MFL50024830 MAZ49398901

EBR52358907

~17

Shape

W

D

H

P/NO : MFL50024808

www.lg.com

INSTALLATION MANUAL

AHU COMMUNICATION 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 : PRCKA1

ENGLISH

Quanti-

ty(EA)

1

1

2(Each 1)

1

4

11(Each 1)

Model

Name

Weight (kg)

Dimension (mm)

POWER

NET

Gross

NET

Gross

W

H

D

W

H

D

PRCKA1

2.7

4.0

280

135

280

420

179

394

220-240 V~ 50 Hz

220 V~ 60 Hz

SUPPLIES

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9
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Summary of Contents for PRCKA1

Page 1: ...ead 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 ENGLISH ESPAÑOL ...

Page 2: ...ditioner is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You can f...

Page 3: ...form grounding Otherwise it may cause electrical shock Don t use a power cord a plug or a loose socket that is damaged Otherwise it may cause fire or electrical shock For installation of the product always contact the service center or a professional installation agency Otherwise it may cause fire electrical shock explosion or injury Securely attach the electrical part cover to AHU Comm Kit If the...

Page 4: ...wet hands Otherwise it may cause a fire or electrical shock Do not use the power cord near the heating tools Otherwise it may cause a fire and electrical shock Do not allow water to run into electrical parts Otherwise it may cause the failure of machine or electrical shock Hold the plug by the head when taking it out It may cause electric shock and damage Be cautious that water could not enter the...

Page 5: ...PRCKA1 10 BEFORE INSTALLATION 13 COMMUNICATION KIT INSTALLATION 13 Mechanical installation 14 Electric Wiring Work 15 Electrical Work 16 Electric Wiring Work 17 Dry contact connection_optional accessory 18 FAN Signal Wiring Concept 19 THERMISTORS INSTAL LATION 19 Pipe thermistors Installation 22 TROUBLESHOOTING TABLE OF CONTENTS TABLE OF CONTENTS ENGLISH ...

Page 6: ...Wiring connections 6 Communication Kit Wiring Power supply and communication between comm kit and outdoor unit 7 Pipe thermistors EBG61287703 EBG61287704 Temp sensing for refrigerant pipe 8 Room thermistor EBG36949303 Temp sensing for room temp 9 Remote controller PQRCVSL0 PQRCVSL0QW Optional accessory 10 Dry contact PQDSBNGCM1 Optional accessory CAUTION For Installation of Room thermistor No 8 al...

Page 7: ...TION 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 PRCKA1 ENGLISH Quanti ty EA 1 1 2 Each 1 1 4 11 Each 1 Model Name Weight kg Dimension mm POWER NET Gross ...

Page 8: ... For further details of the accessories refer to the manual provided at the time of purchasing the accessories Accessories Components Remote controller Dry contact Model name PQRCVSL0 PQRCVSL0QW PQDSBNGCM1 Shape OPTIONAL ACCESSORIES ...

Page 9: ...RT DESCRIPTION No Part Name Quantity EA 1 Plastic bolt 4 2 Control box cover 1 3 Main PCB 1 4 Option PCB 36k 1 5 Main PCB case 1 6 Terminal block communication 1 7 Terminal block POWER Supply 1 8 Panel 1 9 Support Tie wrap 8 10 Control box case 1 11 Cable gland 2type 8 12 Bracket 4 ...

Page 10: ...of AHU Field supply motor must be F or above and the protec tion level must satisfy IP 54 AHU Field supply must have the drain pan installed Fan speed button on the wired remote controller PQRCVSL0 PQRCVSL0QW is not operated For refrigerant piping of outdoor unit refer to the installation manual supplied with the outdoor unit For installation of the wired remote controller PQRCVSL0 PQRCVSL0QW refe...

Page 11: ...eat 5 K Air Temperature 27 C DBT 19 C WBT Heat exchanger volume m3 Tube cross section area Tube length Tube cross section area m2 π ID2 4 Tube length m Tube length of 1 pipe Tube step Tube row Capacity setting Option PCB Detail Option PCB P NO Capacity Btu h Standard heat exchanger volume 10 3 m3 Maximum heat exchanger capacity kW Air Flow rate CMM EBR52358907 28 k 2 7 8 6 22 26 EBR52358908 36 k 3...

Page 12: ...er 30 C for heat ing this system is possible to operate ON and OFF because of protection logic of sys tem No Connection condition Combination 1 100 Fresh Air Intake AHU only are connect ed with outdoor units 1 The total capacity of 100 Fresh Air Intake AHU should be 50 100 of outdoor unit 2 Mixture connection with general AHU and 100 Fresh Air Intake AHU 1 The total capacity of system s IDU 100 Fr...

Page 13: ... box cover by unscrewing the plastic bolt 4EA 2 Drill 4 holes on correct position and fix the Communication kit box securely with 4 screws Field supply through the provided holes Ø4 5 mm Reference the length of the holes Ø4 5 298 mm Provided holes Ø4 5 mm 4EA 189 mm COMMUNICATION KIT INSTALLATION ...

Page 14: ...ock No Connection Function Remark 1 L 2 N Power Supply 220 240 V 50 Hz 220 V 60 Hz 1 3 To AHU Fan Signal HI MID LOW 4 5 To Outdoor Unit Communication Line Internet A B 6 7 To AHU Room Thermistor 8 9 Pipe In Thermistor 10 11 Pipe Out Thermistor 12 14 Remote Controller 15 20 To EEV Kit EEV Kit ...

Page 15: ...port tie wrap Connection of the wires 3 For the wired remote controller wire and outdoor unit communication wire remove the coat ing at the end of the wire to connect and use the ring type Ø3 to connect to the terminal block 4 Each wire have to pass the number of the cable gland mentioned below Support tie wrap Nut of cable gland Side view Detail Cable insert Ring type Ø 3 1 2 3 4 5 6 7 8 Side vie...

Page 16: ...ain switch or other means for disconnection having a contact separation in all poles must be incorporated in the fixed wiring in accordance with relevant local and national leg islation Refer to the installation manual attached to the outdoor unit for the size of power supply electric wire connected to the outdoor unit the capacity of the circuit breaker and switch wiring and wiring instructions E...

Page 17: ...ide panel 2 Using cable connect the dry contact to main PCB For more information please refer to dry contact installation manual Dry contact installation location Applicable dry contact model PQDSBNGCM1 Local controller CN _INDOOR CN_PI485 CN_MODE CN_OUT Dry Contact PCB Dry Contact PCB Dry contact PCB Signal CN_The Oper Field work ...

Page 18: ...m2 R LOW R MED R HI LOW L MED L HI L FAN Signal Wiring Concept CAUTION If the motor is On Off type HI MED LOW wire have to connect as common For example If you just connect HI wire to the motor On Off motor is not operating according to our control logic High Middle Low wire from AHU Comm Kit should not be connected directly to the motor Always use it as a motor for driving the relay contacts Othe...

Page 19: ... distributor on the coldest pass the heat exchanger contact your heat exchanger dealer 2 Pipe_Out EBG61287704 Install the thermistor at the outlet of the heat exchanger as close as possible to the heat exchanger Evaluation must be done to check if the evaporator is protected against freeze up Execute test operation and check for freeze up 1 Pipe_In Suction pipe 2 Pipe_Out Discharge pipe 1 2 Air Ha...

Page 20: ...ermistor may result in bad contact and incorrect temperature measurement Fixation of the pipe thermistors Field work 1 Fix the thermistor with insulating aluminum tape Field supply in order to ensure a good heat transfer 2 Put the supplied piece of rubber around the thermistor EBG61287703 04 in order to avoid loosening of the thermistor after some years 3 Fasten the thermistor with 2 tie wraps Fie...

Page 21: ...p to above water accumulation on down of the thermis tor For sensing the evaporator s temp in thermistor Put the upper port the thermistors on the evaporator this is the most sensitive point of the thermistor Water 45 2 1 1 Most sensitive point of the thermistor 2 Maximize the contact ...

Page 22: ...tween Comm Kit and Outdoor Unit No communication signal for 5 minutes continuously from Comm Kit to Out door Unit CH 06 Pipe Out Temperature sensor error Temperature sensor disconnection or short circuit on pipe outlet of AHU CH 09 Option PCB EEPROM error No reading signal for 5 times continu ously from EEPROM to Comm Kit Problem Cause Remedy AHU Communication Kit does not work No power supply Che...

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