VRV 6A

VRV 6A Series

Features

New Casing

Offers advanced design and new structure with excellent workability.
New large single unit for 22, 24, 26 HP in addition to the conventional combination of two casings.

RXQ-BYMG : 3-phase, 4-wire system, 380-415 V/380 V, 50/60 Hz

Outdoor unit combination

Large capacity single-module

The new large single unit casing reduces installation cost and space.

Reinforced design (NEW)

The frame structure has been strengthened to improve resistance to earthquakes and wind while protecting against falling damage.

Energy Savings

Improves Integrated Energy Efficiency Ratio (IEER)

New VRV 6A series improves energy efficiency during actual operation (low load), equipped with a new compressor and VRT Smart II control.

High Efficiency Compressor Hardware technology

New technologies increase seasonal efficiency and enable a compact design.

VRT Smart II control Software technology

Optimal supply exactly meets the required capacity of indoor units

Indoor unit will calculate capacity needed based on ΔT (Room temperature vs set temperature) and room temperature trend.
Indoor unit will try to regulate with fan speed control.
If fan cannot control speed, indoor unit request Te change from outdoor unit.
Outdoor unit determines the refrigerant temperature based on the demands, and controls the compressor speed and outdoor airflow rate to change the refrigerant temperature.
The outdoor unit supplies the refrigerant adjusted to moderate temperature to the indoor unit.

Greatly improved efficiency by adjusting the capacity by the refrigerant temperature

Reliability

IP55-compliant sealed component box (NEW)

What is IP55?

IP55 is the degrees of dust and water protection for the electrical component box equipped within the outdoor unit.

*IP55 is the protection degree of the wiring box as a single unit. The protection grade of outdoor unit is IP14 as well as conventional model.

Enables operation in high outdoor temperature

Three refrigerant cooling circuits enable stable operation even in high outdoor temperatures by suppressing a temperature rise for the PCB mounted in the sealed electrical component box.

Expanded operation temperature range

The outdoor operation temperature range is now extended from 49 to 52°C. This enables reliable operation even under high temperature conditions and a wider choice of installation locations.

*IP55 is the protection degree of the wiring box as a single unit. The protection grade of outdoor unit is IP14 as well as conventional model.

Comfort

Backup operation function

If malfunction occurs in an outdoor unit, the backup operation is supported. (Only for multiple outdoor units)

Nighttime quiet operation function

The nighttime quiet operation function automatically suppresses the nighttime operating sound by reducing operation capacity to maintain the quiet environment of the neighborhood.
Three selectable modes are available depending on the required level.

*1. Initial setting is 8 hours. Can be selected from 6, 8 and 10 hours.
*2. Initial setting is 9 hours. Can be selected from 8, 9 and 10 hours.
*3. In case of 8-12 HP outdoor unit.
14-26 HP outdoor unit can maintain ≥ 30% of the rated capacity with the sound < 44 dB(A).

Notes:

This function is available in setting at site.
The operating sound in quiet operation mode is the actual value measured by our company.
The relationship of outdoor temperature (load) and time shown above is just an example.

Design Flexibility

Simultaneous extension of height difference and equivalent length

Design flexibility is further improved by simultaneous extension of height difference, improved from 90 m to 110 m, and equivalent length (up to 190 m).

Height difference extension Max. 110 m

For height differences exceeding 50 m with the outdoor unit above the indoor unit and 40 m with the outdoor unit below, the main liquid piping size must be increased.

The operating temperature range is up to 49 ̊C (Outdoor units above indoor units only).
The minimum connection capacity index of the indoor unit shall be 62.5 or more (Outdoor units above indoor units only).

Equivalent length Max. 190 m

When the equivalent piping length from outdoor unit to indoor unit is 90 m or more, be sure to increase the size of the liquid and gas pipes of the main piping.

* In addition to increasing the size of the main pipe, there are other piping restrictions regarding height difference extension and equivalent length. Check the Installation Manual for details.

REFNET header downstream branching supported

Piping branch by REFNET joint is possible downstream of REFNET header. The indoor unit arrangement can be more flexible.

Long piping length

Long piping length enhances design flexibility, enabling support for large buildings.

Installation for VRV indoor units only

*1. No special requirements up to 40 m. The maximum actual piping length can be 90 m, depending on conditions. Various conditions and requirements have to be met to allow utilisation of 90 m piping length. Be sure to refer to the Engineering Data Book for details of these conditions and requirements.
*2. When Height differences above 50 m if the outdoor unit is above the indoor unit and 40 m if the outdoor unit is below the indoor unit, a dedicated setting on the outdoor unit is required. Refer to the Engineering Data Book and contact your local dealer for more information.
*3. If equivalent piping length from outdoor unit to indoor unit is 90 m or more, make sure to size up the liquid and gas pipes of the main piping.

Connection ratio

Easy Installation

Automatic refrigerant charge function

Contribute to optimised operation efficiency, higher quality and easier installation.

Reduced time for automatic charging operation (NEW)

By designing optimal control, the average time has been shortened by 22% (14 min), and the number of on-site operations has been reduced.

Process visualization (Test run only*)

In the new models, in addition to the actual step (t01 to t10), a progress rate (0% to 99%) is available as a guideline when making arrangements for on-site work.

** Effective when test run is carried out independently after manual refrigerant charging.

>Electrical component service window (NEW)

Improved refrigerant piping workability (NEW)

By dividing piping and wiring holes to the left and right, piping and wiring work can be easily performed on site.

Advanced Technologies

Advanced technologies for greater energy savings

By uniting advanced software and hardware technologies for greater energy savings during actual operation and combining the technologies of VRV, VRT and VAV, we have attained both energy savings and comfortable air conditioning.

Optimally supply only for the needed capacity of indoor units

Reduces compressor load and minimizes operation loss so it is energy saving
Controls capacity according to load to ensure a constant room temperature for greater comfort.

* For the classification of indoor units (VRT smart control and VRT control), refer to the indoor unit lineup.

Outdoor Unit Lineup

Capacity range from 8 to 60 HP

Outdoor unit combinations

Notes:
*1. For multiple connection, the outdoor unit multi connection piping kit (separately sold) is required.
*2. Values inside brackets are based on connection of indoor units rated at maximum capacity, 200% for single outdoor units, 160% for double outdoor units, and 130% for triple outdoor units. Refer to page 11 for notes on connection capacity of indoor units.