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 CS-TZ25CKEW is a 2.5kW wall-mounted indoor unit from the TZ super-compact range, built for smaller rooms and spaces where a discreet, slimline cabinet matters as much as performance. It comes with nanoe X air purification built in as standard, working continuously to help keep the room's air cleaner.
At just 765mm wide, the CS-TZ25CKEW is one of the most compact indoor units in Panasonic's line-up, making it a strong fit for bedrooms, home offices, and tight spaces such as the wall area above a door. It pairs with the dedicated CU-TZ25CKE single outdoor unit or a compatible Free Multi Z multi-split outdoor unit, including the CU-3Z68CBE (3-connection).
Important: F-Gas Qualified Installation Required
This indoor unit operates with R32 refrigerant circulated from its outdoor unit, and falls under F-Gas Regulations. Installation and commissioning must be carried out by an F-Gas certified engineer. See the certification form above before ordering.
Please Note: Confirm Outdoor Unit Compatibility Before Ordering
The CS-TZ25CKEW is sold as an indoor unit only. It must be paired with a compatible Panasonic outdoor unit — either the dedicated single unit CU-TZ25CKE, or a Free Multi Z multi-split outdoor unit such as the CU-3Z52CBE (3-connection), CU-3Z68CBE (3-connection), or CU-5Z90CBE (5-connection). Confirm the total combined indoor capacity on any multi-split system stays within the outdoor unit's rated range.
Good to Know: What nanoe X Does
nanoe X generates hydroxyl radicals that are released into the room to help inhibit airborne pollutants, certain bacteria and viruses, and odours, working continuously alongside the heating or cooling function or independently when the unit is in standby.
Super-Compact Cabinet
At just 290mm high, 765mm wide, and 214mm deep, the TZ super-compact cabinet suits tight spaces, including the limited wall space above a door, without dominating the room.
nanoe X Air Purification Built In
Continuous release of hydroxyl radicals works to inhibit airborne pollutants and odours as standard, with no separate filter cartridge to replace.
Built-In Wi-Fi Control
Integrated Wi-Fi connects directly to the Panasonic Comfort Cloud app for remote scheduling and control, and the unit is compatible with Google Assistant and Amazon Alexa voice control.
Aerowings Directional Airflow
Aerowings louvre technology directs airflow more precisely around the room, helping even out temperature across the space rather than blowing directly on occupants.
Ultra-Quiet Operation
Drops to as low as 20 dB(A) in quiet mode, making it a strong fit for bedrooms and other spaces where background noise from air conditioning would otherwise be noticeable.
PM2.5 Filtration
Fitted with a PM2.5 filter to help capture fine airborne particulates as air passes through the unit, working alongside nanoe X for a cleaner overall indoor environment.
| Performance |
| Cooling Capacity (Nominal) |
2.5 kW |
| Heating Capacity (Nominal) |
3.3 kW |
| Cooling Capacity (Min–Max) |
0.85 – 3.00 kW |
| Heating Capacity (Min–Max) |
0.80 – 4.10 kW |
| Heating Capacity at -7°C |
2.70 kW |
| Efficiency |
| EER (Nominal) (paired with CU-TZ25CKE)
|
3.85 W/W |
| COP (Nominal) (paired with CU-TZ25CKE)
|
4.18 W/W |
| SEER |
7.30 (A++) |
| SCOP |
4.60 (A++) |
| Sound |
| Indoor Sound Pressure – Cooling (Hi / Lo / Quiet) |
40 / 26 / 20 dB(A) |
| Indoor Sound Pressure – Heating (Hi / Lo / Quiet) |
40 / 27 / 21 dB(A) |
| Electrical |
| Connecting Cable |
4 x 1.5 mm² |
| Recommended Fuse |
16 A |
| Power Supply |
230V |
| Physical & Connections |
| Dimensions (H x W x D) |
290 x 765 x 214 mm |
| Net Weight |
9 kg |
| Pipe Diameter – Liquid |
1/4" (6.35 mm) |
| Pipe Diameter – Gas |
3/8" (9.52 mm) |
| Features & Control |
| Air Purification |
nanoe X (Generator Mark 2) |
| Filtration |
PM2.5 filter |
| Airflow Technology |
Aerowings |
| Connectivity |
Built-in Wi-Fi (Panasonic Comfort Cloud app) |
| Voice Control Compatibility |
Google Assistant, Amazon Alexa |
| Optional Wired Remote |
CZ-RD517C |
| Refrigerant |
R32 (supplied via compatible outdoor unit) |
| Compatible Outdoor Unit |
Configuration |
Combined Indoor Capacity Range |
| CU-TZ25CKE |
Dedicated single (1-to-1) |
2.5 kW fixed |
| CU-3Z52CBE |
Free Multi Z, 3 connections |
4.5 – 9.5 kW combined |
| CU-3Z68CBE |
Free Multi Z, 3 connections |
4.5 – 11.2 kW combined |
| CU-5Z90CBE |
Free Multi Z, 5 connections |
3.2 – 18.3 kW combined |
Does the CS-TZ25CKEW include an outdoor unit?
No. This listing is for the indoor unit only. It must be paired with a compatible Panasonic outdoor unit, either a dedicated single unit or a Free Multi Z multi-split outdoor unit.
Is the CS-TZ25CKEW compatible with the CU-3Z68CBE outdoor unit?
Yes. Panasonic's own combination data confirms the CS-TZ25CKEW connects to the CU-3Z68CBE 3-connection outdoor unit, including layouts using two or three CS-TZ25CKEW units together, or combined with other TZ indoor unit sizes. As with any multi-split system, the combined nominal cooling capacity of all connected indoor units must stay within the CU-3Z68CBE's 4.5kW–11.2kW range.
What is nanoe X and does it need maintenance?
nanoe X is Panasonic's air purification technology, which releases hydroxyl radicals into the room to help inhibit pollutants, certain bacteria and viruses, and odours. It runs continuously with the unit and does not require a separate filter cartridge to be replaced.
What size room is this unit suitable for?
At 2.5kW nominal cooling, the CS-TZ25CKEW is best suited to smaller rooms such as bedrooms, home offices, or box rooms, where its compact 765mm-wide cabinet is also an advantage.
How quiet is this unit in normal use?
Sound pressure ranges from 40 dB(A) on high fan speed down to 26 dB(A) in cooling mode, with an ultra-quiet mode as low as 20 dB(A) for bedrooms and quiet living spaces.
Does installation need to be carried out by a certified engineer?
Yes. As the system circulates R32 refrigerant, installation must be carried out by an F-Gas certified engineer. We require evidence of certification before shipment.
