How energy-efficient is the Panasonic CU-3Z68TBE (Free Multi System Z, 3-room outdoor unit)?

Its efficiency rating is SEER 8.

Do I need a professional to install the Panasonic CU-3Z68TBE (Free Multi System Z, 3-room outdoor unit)?

Yes. As a multi-split it needs a certified installer. Usually needs permission.

Multi-splitA++ Heats too

Panasonic

CU-3Z68TBE (Free Multi System Z, 3-room outdoor unit)

Name: Panasonic CU-3Z68TBE (Free Multi System Z, 3-room outdoor unit)
Brand: Panasonic

Panasonic's three-port outdoor unit runs up to three Etherea indoor units, combining cooling, heating and nanoe X air cleaning across a typical apartment from a single condenser.

€1,900

List price

outdoor unit only; indoor units and install extra

No live retailer link for this model right now.

Performance

Cooling capacity: 6.8 kW · 23,200 BTU
Heating capacity: 8 kW
Total coverage: 45–80 m²
SEER (cooling): 8
SCOP (heating): 4.6
Energy class (cooling): A++
Energy class (heating): A+
Annual energy (cooling): 313 kWh

Noise, size & features

Model number: CU-3Z68TBE
Indoor noise

What is good

Connects up to 3 indoor units to one outdoor unit for a whole-flat solution
Etherea Z indoor units include nanoe X air purification and built-in Wi-Fi
Good seasonal efficiency (A++) with quiet 19 dB(A) indoor operation
Reverse-cycle heat pump for year-round comfort

What to watch

Three ports only, so not suitable for a four or five room home
Outdoor unit is fairly tall and deep, needs adequate clearance
Whole-system price climbs once three Etherea Z indoor units are added

Installation & the rules that apply

This is a multi-split. Same F-gas certified-installer requirement and sub-750 GWP refrigerant rule as a single split, applied across a bigger system. Because it touches multiple rooms and routes pipes through the structure, it more often triggers planning or prior-declaration steps, freeholder, landlord or condominium and shared-wall consent, and neighbour distance and noise rules. Heritage and historic-centre restrictions apply to the outdoor unit just as for a single split, but the single shared condenser is often easier to get approved than several separate units.

Installation

Certified installer

Refrigerant

R32

BelgiumCopropriete authorisation for shared partsReviewed June 2026Often blocks install

Common questions about the Panasonic CU-3Z68TBE (Free Multi System Z, 3-room outdoor unit)

How loud is the Panasonic CU-3Z68TBE (Free Multi System Z, 3-room outdoor unit)?: 19 dB(A) indoors, quieter than a whisper.
How energy-efficient is the Panasonic CU-3Z68TBE (Free Multi System Z, 3-room outdoor unit)?: Its efficiency rating is SEER 8.
Do I need a professional to install the Panasonic CU-3Z68TBE (Free Multi System Z, 3-room outdoor unit)?: Yes. As a multi-split it needs a certified installer. Usually needs permission.
Does the Panasonic CU-3Z68TBE (Free Multi System Z, 3-room outdoor unit) heat as well as cool?: Yes. It also heats, rated 8 kW.

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The Hisense 2AMW42U4RGC is a compact 4.1 kW R32 dual-split outdoor unit that drives two indoor heads from one small, lightweight condenser. It is a budget-friendly way to cool and heat two rooms, such as a living room and bedroom, without a second outdoor box.

Cooling

4.1 kW