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Heat Pump and Heat Recovery
Variable Refrigerant Flow Outdoor Units
6.0 to 42.0 Tons
Service Manual
Heat Pump
208 / 230V, 60Hz, 3-phase
and
460V, 60Hz, 3-phase
ARUN072BTE4 / ARUN072DTE4
ARUN096BTE4 / ARUN096DTE4
ARUN121BTE4 / ARUN121DTE4
ARUN144BTE4 / ARUN144DTE4
ARUN168BTE4 / ARUN168DTE4
ARUN192BTE4 / ARUN192DTE4
ARUN216BTE4 / ARUN216DTE4
ARUN240BTE4 / ARUN240DTE4
ARUN264BTE4 / ARUN264DTE4
ARUN288BTE4/ ARUN288DTE4
ARUN313BTE4 / ARUN313DTE4
ARUN337BTE4 / ARUN337DTE4
ARUN312BTE4 / ARUN312DTE4
ARUN336BTE4 / ARUN336DTE4
ARUN360BTE4 / ARUN360DTE4
ARUN384BTE4 / ARUN384DTE4
ARUN408BTE4 / ARUN408DTE4
ARUN432BTE4 / ARUN432DTE4
ARUN456BTE4 / ARUN456DTE4
ARUN480BTE4 / ARUN480DTE4
ARUN504BTE4 / ARUN504DTE4
Heat Recovery
208 / 230V, 60Hz, 3-phase
and
460V, 60Hz, 3-phase
ARUB072BTE4 / ARUB072DTE4
ARUB096BTE4 / ARUB096DTE4
ARUB121BTE4 / ARUB121DTE4
ARUB144BTE4 / ARUB144DTE4
ARUB168BTE4 / ARUB168DTE4
ARUB192BTE4 / ARUB192DTE4
ARUB216BTE4 / ARUB216DTE4
ARUB240BTE4 / ARUB240DTE4
ARUB264BTE4 / ARUB264DTE4
ARUB288BTE4 / ARUB288DTE4
ARUB313BTE4 / ARUB313DTE4
ARUB337BTE4 / ARUB337DTE4
ARUB312BTE4 / ARUB312DTE4
ARUB336BTE4 / ARUB336DTE4
ARUB360BTE4 / ARUB360DTE4
ARUB384BTE4 / ARUB384DTE4
ARUB408BTE4 / ARUB408DTE4
ARUB432BTE4 / ARUB432DTE4
ARUB456BTE4 / ARUB456DTE4
ARUB480BTE4 / ARUB480DTE4
ARUB504BTE4 / ARUB504DTE4
SM-MultiV-IV-Air-Outdoor-Units-4-15
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Table of Contents
Related Manuals for LG MULTI V ARUN072BTE4
Summary of Contents for LG MULTI V ARUN072BTE4
- Page 1 SM-MultiV-IV-Air-Outdoor-Units-4-15 Heat Pump and Heat Recovery Variable Refrigerant Flow Outdoor Units 6.0 to 42.0 Tons Service Manual Heat Pump Heat Recovery 208 / 230V, 60Hz, 3-phase 208 / 230V, 60Hz, 3-phase 460V, 60Hz, 3-phase 460V, 60Hz, 3-phase ARUN072BTE4 / ARUN072DTE4 ARUB072BTE4 / ARUB072DTE4 ARUN096BTE4 / ARUN096DTE4 ARUB096BTE4 / ARUB096DTE4...
- Page 2 For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice. ©LG Electronics U.S.A., Inc. This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc.
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Page 3: Table Of Contents
Indoor and Heat Recovery Unit Addressing Flow Chart ....56 Pipe Detection ................57-61 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 4: Safety Precautions
It may result in an accident that causes physical injury or death. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. - Page 5 If a different refrigerant is used, or air mixes with original refrigerant, the unit will malfunction and be damaged. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
- Page 6 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
- Page 7 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
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Page 8: Nomenclature
04 = 4 Ports Series Number 2A = Series Number Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 9: Basic Controls
Inverter linear control as cooling and heating load increases Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 10: Master-Slave Unit Eevs
• 194°F < Td : VI_SH = 34°F Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 11: Special Controls
• Stop: Oil Return Operation will end if / when compressor protection control starts. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 12: Defrost Control / Partial Defrost Control
3. Partial Defrost Control Operation will stop for the bottom top part of the heat exchanger when the temperature rises above the set temperature. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 13: Stop Operation
EEV will open for five (5) minutes. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 14: Protection Controls
* Frequency Hold = Frequency (or RPM) is not increasing (can decrease). Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 15: Discharge Temperature Control / Inverter Protection Control
26A more than 35A more than 30A more than 41A Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 16: Phase Detection / Pressure Switch
Never touch the terminal, nor short two wires directly. It may cause physical injury or death. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. -
Page 17: Other Controls
• If any errors are displayed, check corresponding wires / cables. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. - Page 18 LED on the Main PCB is blank. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
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Page 19: Refrigerant Auto Charge
Functions saved in EPROM will be stored indefinitely even if the system power is reset. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. - Page 20 • During the emergency operation, cooling / heating capacity may be reduced. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.