F-Gas Certification Required
Please note: We are legally required to verify your F-Gas certification before supplying restricted refrigerants. Orders without valid certification will not be processed.
Submit Your F-Gas Certification
The Panasonic CU-4Z68CBE is a 4-connection Free Multi Z outdoor condensing unit, built to run up to four independently controlled indoor units from a single external condenser. It uses the R32 refrigerant and an inverter-driven rotary compressor to deliver flexible, room-by-room heating and cooling for homes needing four separate zones without four separate outdoor units.
Rated at 6.8kW nominal cooling and 8.5kW nominal heating, the CU-4Z68CBE supports a combined indoor capacity range of 4.5kW to 11.5kW, and reaches A+++ SEER efficiency. This is a distinct model from the similarly-rated 3-connection CU-3Z68CBE — the same 6.8kW capacity is delivered here across four ports instead of three.
Important: F-Gas Qualified Installation Required
This unit is charged with R32, a fluorinated greenhouse gas covered by F-Gas Regulations. Installation, commissioning, and any refrigerant handling must be carried out by an F-Gas certified engineer. See the certification form above before ordering.
Please Note: Not the Same as CU-3Z68CBE
Panasonic offers two 6.8kW outdoor units on the Free Multi Z platform: this CU-4Z68CBE (4 connections) and the CU-3Z68CBE (3 connections). They share the same nominal cooling and heating output but differ in port count, connectable indoor capacity range, and efficiency figures — confirm the correct model against the number of rooms in the project before ordering.
Good to Know: Minimum Two Indoor Units Must Be Connected
The CU-4Z68CBE is designed to run 2 to 4 indoor units — at least two must be connected for the system to operate correctly. The combined nominal cooling capacity of all connected indoor units must fall within the 4.5kW–11.5kW connectable range.
Four Independent Zones From One Outdoor Unit
A single compact condenser drives up to four rooms with individual temperature control on each, cutting down on external wall space and pipework runs compared to installing four single-split systems.
Inverter-Driven Rotary Compressor
The inverter compressor modulates output to match real-time demand across all connected rooms rather than cycling on and off, which improves comfort, reduces electricity use, and lowers operating noise.
A+++ SEER Efficiency
Achieves an SEER rating of 8.50 (A+++), ahead of the equivalent-capacity 3-connection CU-3Z68CBE, which is rated A++.
Wide Indoor Unit Compatibility
Compatible with Panasonic's Etherea wall-mounted, TZ super-compact wall-mounted, 60x60 cassette, and low static pressure hideaway duct indoor units, so each connected room can use the indoor style that best suits the space.
R32 Refrigerant for Lower Environmental Impact
R32 has a lower global warming potential than the R410A refrigerant it replaces, while also improving system efficiency — helping the unit meet current and future F-Gas phase-down requirements.
Wide Heating Operating Range
Rated to operate in heating mode down to -15°C outdoor ambient, making it a genuine year-round heat pump solution for UK winters, not just a summer air conditioning unit.
| Performance |
| Cooling Capacity (Nominal) |
6.8 kW |
| Cooling Capacity (Min–Max) |
1.90 – 8.80 kW |
| Heating Capacity (Nominal) |
8.5 kW |
| Heating Capacity (Min–Max) |
1.70 – 10.60 kW |
| Heating Capacity at -7°C |
7.05 kW |
| Indoor Nominal Capacity Range (Min–Max) |
4.5 – 11.5 kW |
| Minimum Indoor Units Connected |
2 |
| Maximum Indoor Units Connected |
4 |
| Efficiency |
| EER (Nominal) |
4.30 W/W |
| COP (Nominal) |
4.62 W/W |
| SEER |
8.50 (A+++) |
| SCOP |
4.60 (A++) |
| Annual Energy Consumption – Cooling |
280 kWh/a |
| Annual Energy Consumption – Heating |
1826 kWh/a |
| Electrical |
| Power Supply |
230V, 1-phase |
| Running Current – Cooling |
7.00 A |
| Running Current – Heating |
8.10 A |
| Recommended Outdoor Fuse |
20 A |
| Recommended Power Cable Section |
2.5 mm² |
| Sound |
| Outdoor Sound Pressure – Cooling (Hi) |
49 dB(A) |
| Outdoor Sound Pressure – Heating (Hi) |
52 dB(A) |
| Physical & Refrigerant |
| Dimensions (H x W x D) |
795 x 875 x 320 mm |
| Net Weight |
64 kg |
| Refrigerant |
R32 |
| Refrigerant Charge |
2.25 kg |
| CO₂ Equivalent |
1.519 T |
| Pipe Diameter – Liquid |
1/4" (6.35 mm) |
| Pipe Diameter – Gas |
3/8" (9.52 mm) |
| Total Pipe Length Range |
6 – 60 m |
| Pipe Length Range to One Unit |
3 – 25 m |
| Elevation Difference (In/Out) |
15 m |
| Operating Range |
| Cooling – Outdoor Ambient |
-10°C to +46°C |
| Heating – Outdoor Ambient |
-15°C to +24°C |
How many indoor units can I connect to the CU-4Z68CBE?
Between 2 and 4 indoor units can be connected. At least two must be connected for the system to run — it cannot be operated with only one indoor unit fitted.
What's the difference between CU-4Z68CBE and CU-3Z68CBE?
Both deliver 6.8kW nominal cooling, but the CU-4Z68CBE offers 4 connections against 3 on the CU-3Z68CBE, has a slightly different connectable indoor capacity range (4.5–11.5kW vs 4.5–11.2kW), and is rated A+++ SEER (8.50) versus A++ (8.20) on the 3-connection model. Choose based on how many rooms the project needs, not just the nominal kW rating.
What indoor unit types are compatible with this outdoor unit?
The CU-4Z68CBE supports Panasonic's Etherea wall-mounted, TZ super-compact wall-mounted, 60x60 grid cassette, and low static pressure hideaway duct indoor units, allowing different room types to use different indoor styles on the same outdoor unit.
Does this outdoor unit need an F-Gas certified installer?
Yes. The unit is charged with R32 refrigerant, which falls under F-Gas Regulations. Installation and any refrigerant work must be carried out by an installer holding valid F-Gas certification, which we verify before shipment.
What is the maximum total indoor capacity I can connect?
The combined nominal cooling capacity of all connected indoor units must fall between 4.5kW and 11.5kW. Exceeding this range is not supported by the manufacturer.
Can this unit provide heating in cold UK winters?
Yes. The CU-4Z68CBE is rated to operate in heating mode down to -15°C outdoor ambient temperature, making it suitable as a genuine year-round heat pump rather than a cooling-only summer unit.
