LG Multi V VRF System — Dallas Installer Guide

LG Multi V is LG's commercial-grade Variable Refrigerant Flow platform — used in Dallas for light commercial buildings, estate residential, and mixed-use applications. Truficient installs the full Multi V lineup. Call 214-238-4349 or request a quote online.

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LG Multi V Platform Overview

LG's commercial HVAC division produces three primary VRF platforms:

• Multi V 5 — flagship air-source VRF, light commercial through medium commercial, heat recovery and heat pump configurations
• Multi V S — residential-scaled VRF for large homes and small commercial, simplified controls
• Multi V Water IV — water-source VRF for buildings using geothermal or central plant water as the heat source/sink

All three share the same core engineering: variable-speed inverter-driven compressors, refrigerant-flow modulation across multiple indoor zones, and centralized building management system (BMS) integration. The platform competes directly with Mitsubishi CITY MULTI, Daikin VRV, Samsung DVM S2, and Fujitsu AirStage J-IIS VRF.

For broader VRF context, see VRF Small Commercial Building Dallas. For comparison brands, see Samsung DVM S2 VRF Dallas, Mitsubishi CITY MULTI VRF Dallas, and Daikin VRV Heat Recovery Dallas.

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Multi V 5 — The Commercial Flagship

LG Multi V 5 (current generation, replacing earlier Multi V IV) is engineered for light-commercial to medium-commercial buildings:

Capacity range:

• 6 ton (72,000 BTU) through 34 ton (408,000 BTU) on single outdoor units
• Modular configuration allows up to 96 ton on combined outdoor unit assemblies

Key features:

• Heat recovery (HR) configuration — simultaneous heating and cooling across different zones. Heat removed from cooling zones is delivered to heating zones rather than rejected outdoors. Critical for Dallas mixed-use buildings where south-facing rooms cool while north-facing rooms heat during shoulder-season operation.
• Heat pump (HP) configuration — single-mode operation, all zones heating or all zones cooling
• Smart Load Control — dynamically rebalances refrigerant flow across zones based on actual demand
• Ultimate Inverter Compressor — LG's high-pressure-side scroll compressor with continuous modulation
• Refrigerant: R-410A current production
• Smart-home and BMS integration: ThinQ Business platform, BACnet, Modbus, KNX

Multi V 5 Heat Recovery Outdoor Unit Sizing

| Model | Capacity | Tonnage | |---|---|---| | ARUM072BTE5 | 72,000 BTU | 6 ton | | ARUM096BTE5 | 96,000 BTU | 8 ton | | ARUM120BTE5 | 120,000 BTU | 10 ton | | ARUM144BTE5 | 144,000 BTU | 12 ton | | ARUM168BTE5 | 168,000 BTU | 14 ton | | ARUM192BTE5 | 192,000 BTU | 16 ton | | ARUM240BTE5 | 240,000 BTU | 20 ton | | ARUM288BTE5 | 288,000 BTU | 24 ton | | ARUM336BTE5 | 336,000 BTU | 28 ton |

Indoor units pair with the Multi V 5 outdoor through HR Units (Heat Recovery distribution boxes) that route refrigerant flow per zone. Indoor unit options:

• High-static ducted air handlers (ARNU series) — for ducted residential or commercial application
• 4-way ceiling cassettes — for commercial flush-ceiling installation
• Wall-mount units — for residential or open-plan commercial
• Floor-mount units — for retrofit applications where wall or ceiling installation is impractical
• Concealed-duct slim units — for residential applications requiring discreet indoor unit placement

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Multi V S — The Residential VRF

Multi V S is LG's scaled-down VRF for residential applications and small commercial under 6 tons:

Capacity range:

• 2 ton (24,000 BTU) through 6 ton (72,000 BTU)

Application targets:

• Estate residential homes above 5,000 square feet
• Small commercial buildings under 6 tons
• Mixed-use building residential portion
• Multi-family / townhome applications where 4-12 zones are needed

The Multi V S is simpler to install and commission than the Multi V 5 because it's residential-engineered — single outdoor unit, simplified controls, ThinQ smart-home integration rather than full BMS. For Dallas estate residential applications where Mitsubishi MXZ-8C48NAHZ would otherwise be specified, the Multi V S is a competitive alternative.

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Where LG Multi V Beats Alternatives in Dallas

The decision between LG Multi V and competing VRF platforms (Mitsubishi CITY MULTI, Daikin VRV, Samsung DVM S2) is typically a project-specific call. LG Multi V's specific advantages:

1. Smart-home and BMS integration — ThinQ Business is one of the more mature commercial smart-building platforms
2. Wide capacity envelope — the Multi V 5 scales smoothly from 6 ton through 28 ton on a single outdoor unit module
3. Heat recovery performance — LG's HR Unit design produces good simultaneous heating-and-cooling performance
4. Pricing competitiveness — Multi V is often priced 10-15% below Mitsubishi CITY MULTI at equivalent capacities
5. Service network in Dallas — LG has good local service infrastructure for commercial VRF

LG Multi V's specific disadvantages relative to alternatives:

1. Diamond Dealer equivalent doesn't exist — Mitsubishi's Diamond Dealer 12-year warranty has no LG equivalent
2. Refrigerant transition timing — LG is later on R-32 / R-454B transition than Mitsubishi
3. Lower brand recognition in residential applications — homeowners considering luxury residential VRF often default to Mitsubishi or Daikin

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Typical Dallas Multi V Applications

Estate residential (Preston Hollow, Highland Park, University Park)

For 6,000-9,000 square foot estate homes with 8-12 zones:

• Outdoor: Multi V S 5-ton or 6-ton outdoor unit
• Indoor: Mix of high-static ducted air handlers (for ducted zones), ceiling cassettes (for vaulted main living areas), wall mount (for bedroom suites)
• Total install: $50,000-$85,000 depending on configuration

Mixed-use Deep Ellum or Design District building

For 2-4 story mixed-use buildings with ground-floor retail and upstairs residential or office:

• Outdoor: Multi V 5 HR 8-ton to 14-ton outdoor unit
• Indoor: Per-tenant ducted air handlers + per-zone cassettes
• Total install: $80,000-$180,000

Light commercial Design District showroom

For 5,000-12,000 square foot light commercial spaces:

• Outdoor: Multi V 5 HR 8-ton to 14-ton
• Indoor: Mostly ceiling cassettes for showroom + ducted air handlers for office portion
• Total install: $65,000-$140,000

For Design District commercial context specifically, see Commercial HVAC Design District Dallas.

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Federal Commercial Tax Treatment

Commercial VRF installations qualify for Section 179D energy-efficiency deductions and bonus depreciation under current tax law. The credit math varies by configuration. Truficient provides equipment specifications and AHRI certificates for tax-advisor review.

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Get an LG Multi V Quote for Dallas

Call 214-238-4349 or request a quote online.

Truficient installs the full LG Multi V lineup across Dallas residential, light commercial, and mixed-use applications. Heat recovery and heat pump configurations, ThinQ Business integration, BMS coordination for commercial projects.

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