TABLE OF CONTENTS Unit Nomenclature ......................................4 LG Air Conditioner Technical Solution (LATS) ............................5-6 Refrigerant Charge Worksheet ..................................7 Water Source Unit Product Data ................................8-60 Mechanical Specifications ..................................9-10 Product Features and Benefits ................................11-12 General Data ....................................... 13-21 Electrical Data .....................................
LG offers, free of charge, LG Air Conditioner Technical Solution (LATS) software—a total design solution for LG air conditioning systems. To reduce the risk of designing an improper applied system or one that will not operate correctly, LG requires that LATS software be used on all projects.
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LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system.
WATER SOURCE UNIT PRODUCT DATA Mechanical Specifications on page 9 Product Features and Benefits on page 11 General Data on page 13 Electrical Data on page 22 Connection Limitations on page 24 Dimensions on page 25 Wiring Diagrams on page 28 Refrigerant Flow Diagrams on page 30 Acoustic Data on page 38 Head Loss by Water Flow on page 53...
Generation 4 Equipment The latest versions of LG’s indoor units and water source units are designated Generation 4 (Gen 4). For Gen 4 units to operate with Gen 4 features, the air conditioning system must meet the following requirements: •...
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Simplified Installation Cooling and heating systems that use the LG Multi V Water 5 simplify and reduce the mechanical and control system design time. The designer no longer has to be concerned with interconnecting chilled and condenser water piping, air-distribution duct systems, matching and selecting chillers, towers, pumps, coils, fans, air handlers, or Variable Air Volume (VAV) boxes.
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® • Main Memory: 256 MB LGMV is available in different formats, including Mobile LGMV, which is an app for use on wireless devices. Contact your LG Sales Representative for more information. Due to our policy of continuous product innovation, some specifications may change without notification.
ELECTRICAL CONNECTIONS System for Heat Pump Operation on page 62 System for Heat Recovery Operation on page 63 DIP Switch Settings For Use With Gen 4 Indoor Units on page 64...
(see table). LG VRF systems can operate with both old 2A Heat Recovery units and new 3A Heat Recovery units, if the outdoor unit software has been upgraded. If a system includes a mix of both old and new Heat Recovery units, the system design must follow 2A Heat Recovery unit series piping rules.
PIPING LIMITATIONS AND PLACEMENT CONSIDERATIONS Piping Limitations for systems designed for Heat Pump operation on page 67 Piping Limitations for systems designed for Heat Recovery operation on page 71 Refrigerant Piping for Separated Water Source Units on page 77 Placement Considerations on page 79 Transporting/Lifting on page 80 Installation Considerations on page 81 Corner Weights on page 83...
PIPING LIMITATIONS For Systems Designed for Heat Pump Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Figure 13: Typical Heat Pump System Building Layout with Piping Limitations.
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PIPING LIMITATIONS For Systems Designed for Heat Pump Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Example of Pipe Sizing When Installing a Heat Pump System Example: Five (5) indoor Units Connected Figure 14: Sample pipe sizing for Heat Pump System.
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PIPING LIMITATIONS For Systems Designed for Heat Pump Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Table 22: Refrigerant Pipe Diameter (B) from Y-branch to Y-branch / Table 23: Indoor Unit Connecting Pipe from Branch (C).
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PIPING LIMITATIONS For Systems Designed for Heat Pump Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Heat Pump Triple-Frame Connection Pipe Sizes Table 24: Triple-Frame Connection Pipe Sizes.
PIPING LIMITATIONS For Systems Designed for Heat Recovery Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Figure 16: Typical Heat Recovery System Building Layout with Piping Limitations.
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PIPING LIMITATIONS For Systems Designed for Heat Recovery Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Table 26: Piping Limitations for Heat Recovery Operation.
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PIPING LIMITATIONS For Systems Designed for Heat Recovery Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Example of Pipe Sizing When Installing a Heat Recovery System Figure 17: Heat Recovery Triple-Frame Connections.
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PIPING LIMITATIONS For Systems Designed for Heat Recovery Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Table 27: Main Pipe (A) Diameter from Water Source Unit to First Y-branch.
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PIPING LIMITATIONS For Systems Designed for Heat Recovery Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Triple-Frame Heat Recovery Water Source Unit Connections Figure 18: Heat Recovery Triple-Frame Connections.
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PIPING LIMITATIONS For Systems Designed for Heat Recovery Operation Following pages present Multi V Water 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems. Heat Recovery Triple-Frame Connection Pipe Sizes Table 30: Triple-Frame Connection Pipe Sizes.
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To access additional technical documentation such as submittals, indoor unit engineering manuals, installation, service, product data performance, general best practice, and building ventilation manuals, as well as white papers, catalogs, LATS software programs, and more, log in to www.lghvac.com.
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20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. Air Conditioning Technologies EM_MultiV_Water5_05_22 4300 North Point Parkway Supersedes: EM_MultiV_Water5_04_22 Alpharetta, Georgia 30022 EM_MultiV_Water5_01_22 http://www.lghvac.com...
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