LG Multi-Split Wall-Mounted 3.5kW Indoor Head Unit (LG MS12AH3 3.5kW Multi-Split Indoor)
Indoor Model Code: MS12AH3.ENWHLAP | Category: Multi-Split Indoor Head Units
Product Overview
Engineered for medium living zones and master suite multi-room setups, the LG MS12AH3 3.5kW Multi-Split Indoor unit brings quiet, balanced climate control to residential interiors. Delivering a nominal 3.5 kW cooling capacity and 3.9 kW heating output, it provides rapid temperature pull-down while maintaining low electrical power draw.
Operating as part of an LG multi-room system, this unit connects back to a central outdoor multi-split condenser. Featuring LG’s multi-stage air purifying system, automated louver control, multi-speed fan adjustments, and a compact 818 mm wide chassis, it delivers personalized room comfort with exceptional quietness.
Quick Highlights
- Nominal Capacity: Rated 3.50 kW cooling capacity and 3.90 kW heating output.
- Quiet Sound Output: Low sound pressure level down to 29 dBA in sleep mode.
- Compact Chassis: Modern indoor unit body measuring 818 mm (W) x 316 mm (H) x 189 mm (D).
- Lightweight Design: Body net weight of just 8.2 kg for straightforward wall mounting.
- Air Purifying Filtration: Integrated Neo Plasma multi-stage air filtration system.
- Multi-Split System Head: Connects to compatible LG multi-port outdoor condensers.
- Independent Room Zoning: Operates on its own setpoint and timer schedules independently.
- Automated Louver Control: Sweeps conditioned air for uniform temperature coverage.
- Standard Flare Piping: Liquid line 6.35 mm (1/4″) and Gas line 9.52 mm (3/8″) connection sizes.
- Infrared Remote Included: Wireless handheld remote controller supplied in the box.
Why Choose This Model (LG MS12AH3 3.5kW Multi-Split Indoor)?
The LG MS12AH3 3.5kW Multi-Split Indoor head unit is the most versatile capacity size for master bedrooms, open-plan apartment bedrooms, and medium living rooms (20–30 m²). Delivering a strong 3.5 kW cooling output with low 29 dBA sound pressure levels, it provides powerful daytime cooling and quiet nighttime sleep conditions.
Key Features
Neo Plasma Air Purifying System
Features LG’s specialized air sanitation technology designed to reduce odors, microscopic dust particles, and airborne contaminants for a cleaner indoor atmosphere.
Whisper Quiet Sound Pressure
Optimized cross-flow fan geometry reduces operational sound levels to 29 dBA on low fan speed, making it suitable for quiet nighttime rest in master suites.
Flexible Multi-Split Zoning
Operates as a dedicated zone head on an LG multi-split outdoor condenser. Room occupants can set custom temperatures or turn off the unit entirely when leaving the room without affecting other areas of the house.
Automated Airflow Louver Direct
Motorized louvers sweep conditioned air across the room during cooling or direct warm air toward the floor during heating to ensure consistent floor-to-ceiling thermal comfort.
Ultra-Compact Wall Profile
With a shallow 189 mm depth and 818 mm width, this sleek head unit mounts flush above doorways or window lintels without dominating interior decor.
Ideal Applications
- Master Bedrooms & Suites: 3.5 kW capacity conditions medium sleeping areas (20–30 m²) with low noise output.
- Living Rooms & Apartment Lounges: Delivers rapid cooling and heating performance for open-plan areas.
- Multi-Room Residential Fitouts: Pairs with other LG multi-split head units on a single outdoor condenser.
Why Professionals Choose This Model (LG MS12AH3 3.5kW Multi-Split Indoor)?
HVAC installers specify the LG MS12AH3 3.5kW Multi-Split Indoor unit (MS12AH3.ENWHLAP) for its compact 8.2 kg body, standard 6.35 mm / 9.52 mm flare connections, and seamless compatibility across LG multi-split outdoor condensers. Its simple mounting bracket and accessible service ports streamline jobsite installation.
Technical Specifications
General & Performance
| Specification Parameter | System Value |
|---|---|
| Model Code | MS12AH3.ENWHLAP |
| Unit Type | Multi-Split Wall-Mounted Indoor Unit |
| Nominal Cooling Capacity | 3.50 kW |
| Nominal Heating Capacity | 3.90 kW |
| Power Input (Norm) | 19 W |
| Running Current (Norm) | 0.17 A |
Electrical Data
| Power Supply | 1 Phase, 220–240 V, 50 Hz |
| Interconnecting Cable | 4-Core x 1.0 mm² |
Dimensions & Weights
| Body Dimensions (W × H × D) | 818 mm × 316 mm × 189 mm |
| Shipping Dimensions (W × H × D) | 892 mm × 381 mm × 249 mm |
| Net Weight | 8.2 kg |
| Shipping Weight | 10.2 kg |
Noise Levels & Airflow
| Sound Pressure Level (H / M / L) | 38 dBA / 34 dBA / 29 dBA |
| Airflow Rate (H / M / L) | 133 l/s / 110 l/s / 92 l/s (8.0 / 6.6 / 5.5 m³/min) |
| Fan Type | Cross Flow Fan |
Piping & Installation Requirements
| Liquid Pipe Size | 6.35 mm (1/4″) |
| Gas Pipe Size | 9.52 mm (3/8″) |
| Drain Hose Size (O.D. / I.D.) | 21.5 mm / 16.0 mm |
Installation Information of the LG MS12AH3 3.5kW Multi-Split Indoor
Installation of the LG MS12AH3 3.5kW Multi-Split Indoor unit (MS12AH3.ENWHLAP) must be conducted by an ARC-certified air conditioning installer. This unit requires connecting 6.35 mm liquid and 9.52 mm gas copper pipe lines and 4-core inter-unit control wiring back to a compatible LG multi-split outdoor condenser.
Compatible Accessories
- LG Multi-Split Outdoor Units: Multi-port outdoor condensers (sold separately).
- Wired Wall Controller Options: Optional wall controllers for fixed commercial or residential mounting.
What’s Included in LG MS12AH3 3.5kW Multi-Split Indoor
- 1 x LG Multi-Split Wall Head Unit (MS12AH3.ENWHLAP)
- 1 x Wireless Infrared Handheld Remote Control
- 1 x Wall Mounting Bracket & Installation Fitting Plate
- 1 x User Operating Manual
Warranty
The LG MS12AH3 3.5kW Multi-Split Indoor head unit includes LG’s official 5-Year Parts and Labour Warranty for residential installations across Australia when fitted by a certified ARC professional installer.
Frequently Asked Questions
Q1: What room size is suitable for the LG MS12AH3 3.5kW Multi-Split Head Unit?
A: A 3.5 kW capacity is designed for medium-sized spaces, such as master bedrooms, living rooms, or home offices up to 30 square metres.
Q2: Can this indoor unit work by itself without an outdoor unit?
A: No. This is an indoor head unit that must be connected to a compatible LG multi-split outdoor condenser unit to operate.
Q3: Does this unit include a wireless remote control?
A: Yes, a wireless handheld infrared remote control is included in the box.
Q4: Is professional installation required?
A: Yes. In Australia, all split system refrigerant pipe connections must be carried out by a licensed ARC air conditioning installer.
Why Buy From AirContrade?
AirContrade is Australia’s trusted wholesale marketplace for HVAC trade professionals. When purchasing your LG MS12AH3 3.5kW Multi-Split Indoor head unit through us, you receive authentic Australian stock, trade-direct wholesale pricing, fast regional dispatch, and dedicated support from experienced air conditioning specialists.
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