LG KM113.27UU Installation Manual Download | Manualshive

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2020/07/23 page 1

INSTALLATION MANUAL

Safety regulations
Installation
Operation

KM113.27UU

2xRS485

A SET FOR THE APPLICATION OF AN
OUTDOOR COMPRESSOR CONDENSATION UNIT FOR A
NON-ORIGINAL EVAPORATION / HVAC UNIT

DESIGNED FOR OUTDOOR UNITS

LG Electronics, model series „UU**“

Version 2020/07/23

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Summary of Contents for KM113.27UU

Page 1: ...ty regulations Installation Operation KM113 27UU 2xRS485 A SET FOR THE APPLICATION OF AN OUTDOOR COMPRESSOR CONDENSATION UNIT FOR A NON ORIGINAL EVAPORATION HVAC UNIT DESIGNED FOR OUTDOOR UNITS LG Electronics model series UU Version 2020 07 23 ...

Page 2: ...ion diagram of KM113 27UU to an outdoor compression unit fig 4 9 4 4 Connection to an outdoor compression unit power limitation module 9 Connection diagram of MOV UU to an outdoor compression unit and KM113 27UU fig 5 10 5 CONNECTION TO SUPERIOR I C HVAC SYSTEM 10 5 1 Control descriptions priorities 10 5 2 Inputs for external control digital analogue 10 Control diagram Power request for analogue i...

Page 3: ... 230 V AC 10 50 Hz from the connected outdoor unit Voltage category II Recommended cable CYKY O 2x1 5 Power input Maximum 5 W Power supply of separate module KM113 27UU 12 V DC 10 max 120 mA The supply must be separated by double insulation SELV Communication with outdoor unit Two wires at the low voltage system connected with 230VAC Recommended cable JQTQ 2x0 8 Other connected devices Must be sep...

Page 4: ...ital inputs 2 digital outputs and 2 communication ports RS485 for controlling the compressor unit The MODBUS input output is intended for communication with the superior I C system The POWER output is intended for direct synchronous reduction of the compressor unit output according to the current power requirement 3 1 Guaranteed compatibility of the communication module with compr unit Cooling per...

Page 5: ...ump mode 6 Function of the I C system the request for cooling or heating must not be activated if a sufficient air flow through the heat exchanger in the HVAC is not ensured 7 Function of the I C system in the DEFROST operating mode the system must enable reliable removal of icing from the outdoor unit and at the same time solve the low air temperature behind the heat exchanger in the HVAC The pow...

Page 6: ...Outdoor unit UU APPLICATION OVERVIEW DIAGRAM KM113 27UU UU HVAC I C Communication MODBUS I C Communication I O I C Air outlet I C system for HVAC Temperature sensors on refrigerant piping Air inlet R410A R32 refrigerant piping HVAC unit Outdoor unit I C Power supply Te m p se ns or IN Te m p se ns or O U T P O W E R co nt ro l 0 1 0 V Fu nc ti on se le ct Po w er se le ct St ar t O N St op D ef ro...

Page 7: ...m the installation box loosen the 4 threaded locks at the cover corners Now you may access the connection terminals of the communication module and the power supply source Have cable glands suitable for your intended application ready Attach the communication box to a suitable vertical plane use the holes and covers at the rear of the box 4 2 INSTALLATION connection of refrigerant temperature sens...

Page 8: ...white terminal No 10 Sensors are delivered with standard cable length of 3 m sensors with longer cable length on request Notice When the temperature sensor is connected incorrectly or is defective the safety function of the communication module is activated and the system generates corresponding error message see the list of error messages of the applied LG unit 4 3 CONNECTION TO AN OUTDOOR COMPRE...

Page 9: ...nit that supports this function see LG manufacturer s specifications Make sure that the compressor unit is without voltage There is a risk of electric shock and damage to the device when installing the module under voltage Install the MOV UU power limitation module in the outdoor compressor unit the module is connected to the CN CENTRAL connector on the PCB of the compressor unit Connect a suitabl...

Page 10: ...ommands from MODBUS will be respected logic and analogue signals are ignored until the power supply is turned off In the analogue signal is above the power output 1 the analogue input for the power value will be accepted as the control input In the analogue signal is not active the control through logic signals is respected contacts MODBUS PROTOCOL CONTROL MONITORING see separate section for descr...

Page 11: ...nfluence the output change of evaporating temperature in cooling mode change of condensing temperature in heat pump mode it is necessary to install a capacity limitation module at the same time 1 Input terminals POWER 0 10V terminals 11 12 analogue signal 0 10V 0V no request for power level 10V maximum power level request The current power request is shown on the right side of the display module u...

Page 12: ...is completed and when the refrigerant temperature in the heat exchanger reaches at least 20 C During regular operational status the contact is off open ERROR Logic output ERROR terminals 21 22 The contact is off open if the equipment diagnostics identified a defect or the equipment is not powered no supply voltage The defect code is also shown on the module display using the variable communicated ...

Page 13: ...es READING REGISTRIES Name Address decadically Properties description VERSION 4096 Software version ERROR 4097 Errors according to the device s self diagnostics see the service manual of the LG device error 99 Modbus communication error TEMP1 4098 Refrigerant input temperature to the exchanger 15 C blue sensor smaller diameter TEMP2 4099 Refrigerant output temperature to the exchanger 15 C red sen...

Page 14: ...tically set to 0 Reading the values of the read registers is possible at any time without time limit and does not affect the control by HW signals 6 CONFIGURATION AND CONNECTION CHECK 6 1 Setting the power code and MODBUS communication address Fig 9 Adjustment mode activation diagram The power code and address for external control MODBUS are set using the SETTINGS button CAPACITY MODBUS Setting pr...

Page 15: ...nd software setting information example LG UU 16 So 4 4 Explanation module designed to communicate with LG compressor unit model series UU pre set cooling power 16 kW outdoor unit UUD1 UUD3 UU60W UU61W software version 4 4 2nd cycle basic hardware and software setting information example LG UU 16 So 4 4 Explanation module designed to communicate with LG compressor unit model series UU pre set cool...

Page 16: ...als with the DI3 No 16 terminal the power level 2 is activated the display shows C4 When connecting the 0V No 13 terminals with the DI2 No 15 and at the same time the D13 No 16 terminal the power level 3 is activated the display shows C7 5 Test of the logic contact input for operating mode switching disconnect all power requirements and connect the MODE C H terminals using a suitable conductor Whe...

Page 17: ...Installation performed by The manufacturer provides a 24 month warranty covering the quality of the product starting on the day of sale The warranty covers defects of the purchased product which appear during the warranty period In order to keep your warranty valid the installation must be performed by an authorized person and the Warranty form must be properly filled out The client shall always c...

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