Multi Split 3x1 Panasonic CU-3Q52TBE + 3X CS-TZ25CKEW

Performance of the Outdoor Unit (Cu-3tz52tbe)

Cooling capacity (nominal): 5,20 kW (1,80 kW Inverter Working Range at 6.60 kW)

Capacity Heating (nominal): 6,80 kW (1,60 kW Inverter Working Range at 7.50 kW)

Seasonal energy classification (cold / heat): A ++ / A +

Seer efficiency coefficient (cold): 7,60

Efficiency coefficient SCOP (heat): 4,20

Sound pressure (cold / heat): 48/48 dB (A)

Net dimensions (at x an x PR): 795 x 875 x 320 mm

Net engine weight: 71 kg

Gas Refrigerant Gas / Original load: R32 / 2.1 kg

Symmetrical interior units (3x cs-tz25ckew / cs-tz25wkew)

Commercial range / series: Split Tz UltraCompact [cite: 20]

Individual refrigeration capacity: 2.50 kW [cite: 26]

Individual heat capacity: 3,30 kW [cite: 26]

Minimum sound pressure (silent mode): 20 dB (a) [cite: 26]

Net dimensions of each split (an x at x PR): 779 x 290 x 209 mm [cite: 26]

Net weight per mural unit: 8 kg [cite: 26]

Diameter of pipes (each): Liquid 1/4 - Gas 3/8 [cite: 26]

Integrated wireless connectivity: Wi-Fi Series included (control via Internet) [cite: 25, 26]

✔️ Exterior design of great capacity and slack: The outdoor Unit CU-3TZ52TBE has an interior capacity elastic range connected from 4.5 to 9.5 kW. When connecting a symmetric combination of three units of 2.5 kW (adding a total installed load of 7.5 kW), the compressor operates in an optimal, balanced and secure range within its refrigeration engineering specifications[cite: 13, 20].

✔️ splits with ultra-compact chassis: The three interior units of the TZ range have an optimized width of only 779 mm[cite: 26]. This remarkably facilitates its placement on door frames or in corridors and stays with severe architectural space restrictions, offering a clean and minimalist aesthetics[cite: 10].

✔️ Integrated home automation wireless connectivity: Each Split includes pre-installed factory its own wireless receiver module for control over the Internet[cite: 25, 26]. It allows individual management of each room from your smartphone or tablet, and is fully compatible with voice command logics through the main digital assistants of the market[cite: 12].

✔️ Acoustic comfort optimized for bedrooms: The interior units manage to mitigate the internal aerodynamic noise thanks to an optimized fan design, recording a sound pressure of just 20 dB (A) in its lower mode (S-BA / Silent Mode), ensuring a high quality break in the rooms[cite: 26, 28].

✔️ Advanced wall control bracket: In addition to the included wireless control with each unit, the system offers optional compatibility with the wired wall knob Panasonic (Reference model CZ-RD517C), ideal for residential or commercial installations that require a fixed control interface[cite: 22, 24].

How do you distribute the cold power the engine of 5.20 kW between the three units of 2.5 kW?

The distribution of the refrigeration power is fully intelligent and is electronically coordinated by the external engine expansion valves of Panasonic. Every indoor Unit it has its own thermal reading probes. If you turn on a single stay, the compressor will adapt its speed to deliver the exact capacity demanded by that area with minimal electricity consumption. If the three stays are activated at the same time requesting the maximum power, the outer engine will distribute its 5,20 kW nominal total capacity and proportional between the three active refrigeration branches.

What maximum lengths and pipe limits should be respected in the installation of this 3x1 kit?

According to the official Specifications tab of the CU-3TZ52TBE model, the refrigeration installation supports a total accumulated pipe length of up to 50 meters by adding the three branches of the installation. Additionally, the maximum distance admitted from the exterior engine up to one indoor Unit it is 25 meters. As for height dimensions, the system tolerates a maximum vertical rate of up to 15 meters between the outdoor Unit and the interiors, guaranteeing a correct return of oil to the compressor.

From what distance of pipeline is necessary to add additional load of coolant R32?

The multi SPLIT system comes pre-loaded from factory with R32 refrigerant[cite: 4, 13]. The maximum further loading tubing length that covers the source gas is from a total accumulated of 30 meters. If the sum of the three independent refrigeration lines of your installation exceeds this threshold of 30 meters, the authorized installer must add an additional amount of gas of 20 grams for each extra pipe meter installed, until reaching the total limit of the installation.