Voltas MultiMAX VRF Outdoor Unit

The Voltas MultiMAX VRF Outdoor Unit is designed for residential and small commercial air-conditioning applications. Available in multiple capacities from 2.8 HP to 6 HP, the series supports flexible indoor-unit connections, with compatible models connecting up to 9 indoor units.

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The Voltas MultiMAX VRF Outdoor Unit series provides a compact air-conditioning solution for applications requiring multiple indoor units connected to a single outdoor unit. The range includes several capacity options designed to accommodate different cooling and heating requirements.

According to the Voltas MultiMAX catalogue, the series includes 2.8 HP, 3.6 HP, 4.2 HP, 4.8 HP, 5.6 HP and 6 HP models. Depending on the selected model, a single outdoor unit can support between 4 and 9 indoor units.

Key Features
  • Multiple outdoor-unit capacity options
  • Cooling and heating operation
  • Multiple indoor-unit connection configurations
  • Refrigerant piping flexibility within specified installation limits
  • Flare-type refrigerant connections for simplified installation
  • DC inverter compressor technology
Applications

The MultiMAX series can be considered for homes, apartments, small offices, shops and other spaces requiring multiple indoor air-conditioning units.

Installation and Selection

The correct model should be selected according to the required cooling and heating capacity, number of indoor units, refrigerant piping distances and site conditions. Indoor-unit compatibility and installation limits must be confirmed using the manufacturer’s technical documentation. Actual performance and supported connections depend on the selected model and system configuration.

Features
  • Multiple indoor-unit connections: Model-dependent support for 1–4, 1–5, 1–7, 1–8 or 1–9 indoor units.
  • Cooling and heating: Supports both operating modes according to the catalogue.
  • DC inverter technology: Uses the specified inverter compressor system.
  • Compact outdoor-unit range: Multiple capacities provide flexibility for different project requirements.
  • Flare-type connections: Designed to simplify refrigerant piping installation.
  • Flexible piping configurations: Installation distances and level differences vary according to model capacity and catalogue limits.
Brand

Voltas

Product Series

MultiMAX

System Type

VRF Outdoor Unit

Operating Modes

Cooling and Heating

Compressor Type

DC Inverter

Refrigerant

R410A

Power Supply

220–240 V, single-phase, 50 Hz

Refrigerant connection

Flare connections

Model Number

VMM-V28 WDHN1 (LCV), VMM-V36 WDHN1 A (LCV), VMM-V42 WDHN1 A (LCV), VMM-V48 WDHN1 (LCV), VMM-V56 WDHN1 (LCV), VMM-V60 WDHN1 (LCV)

Capacity (HP)

2.8 HP, 3.6 HP, 4.2 HP, 4.8 HP, 5.6 HP, 6.0 HP

Cooling Capacity

8.0 kW, 10.0 kW, 12.3 kW, 14.0 kW, 15.5 kW, 17.5 kW

Expansion control

Electronic Expansion Valve

Nominal capacity

2.3–5.0 TR

Connected indoor-unit capacity

45–130% of outdoor-unit capacity

Outdoor airflow

3,750–5,300 m³/h

Sound pressure level

54–57 dB(A)

Refrigerant piping — liquid

Ø9.53 mm

Refrigerant piping — gas

Ø15.9 mm for listed smaller models; Ø19.1 mm for larger models

Cooling operating range

−15°C to 55°C

Heating operating range

−15°C to 28°C

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