Household split systems

The general decoding for Cooper& hunter household split systems is quite simple, you can easily get general information from it and understand belonging to the series, but you need to look at the detailed functionality in the characteristics of the model.

1. CH is an abbreviation of the Cooper&hunter brand. If after CH comes the designation ML, it means Multi Light series, for use in multi split systems.

2. S is the designation of the split system.

3. Cooling capacity in thousand BTU, calculated as 12*1000=12000 BTU. At the same time, the heating value is usually slightly higher.

4. The designation of the series. Series with inverter control usually begin with the letter F and there are most of them, consider the most popular:

  • XN7 — Prima Plus (there is no letter F at the beginning, the series is without an inverter);
  • FTXQ — Veritas;
  • FTXF — Vital.

The manufacturer allocates separately a series of air-to-air heat pumps, they differ little from the outside, but the feature is the efficient operation of heating at low outdoor temperatures, up to -25, -30 °C, these include:

  • FTXN-E — Nordic EVO;
  • FTXN-P — Nordic Premium;
  • FTXLA — Arctic;
  • FTXAL — Supreme Continental;
  • FTXB — ICY3;
  • FTXAM — Supreme;
  • FTXHV-B — VIP;

There are significantly more series and will be added with the release of new models, only the most popular ones are listed above, Nevertheless, these series account for up to 95% of all sales among household split systems.

5. The 2S model uses a compressor with two—stage air compression. In such a cycle, the gas is compressed to an intermediate value, then cooled and compressed to the final value. Such compressors are more efficient. A series of air conditioners, or it would be more correct to say heat pumps, which are equipped with such compressors have very high efficiency indicators, both when working for cooling and when working for heating. Depending on the model, they can heat the room at outdoor temperatures up to -30 °C.

6. If the designation NG — Next Generation is located in this place, it means that this model uses R32 refrigerant and is a new modification of the previous generation to R410A. There may also be colour designations in this place:

  • BL — black;
  • GD — golden;
  • SC — silver;
  • WP is white.

Semi-industrial systems

Indoor unit:

Separately, it is worth considering the marking of a semi-industrial series with universal outdoor units U-Match:

1. Brand designation.

2. Type of indoor unit:

  • F — channel;
  • K — cassette;
  • T — floor-ceiling.

3. Operating mode:

  • C — cold only;
  • H — heat + cold (without the use of electric heaters).

4. Nominal cooling capacity in thousands BTU 09 = 9000 BTU.

5. Type of climatic design:

  • N — for climate zone T1;
  • T — for the climate zone T3.

6. Type of power supply:

  • K — single-phase 220–240V, 50 Hz;
  • M — three-phase 380-415V, 50 Hz.

7. Type of refrigerant:

  • 1 — R22;
  • 2 — R407C;
  • 3 — R410A.

8. Modification of the external unit. There can be both letters A, B, C, D, etc., and numbers after the letter denoting a submodifier, for example B2, C1.

9. I — indoor unit.

External unit:

The marking of the external unit of the universal U-Match series is very similar to the marking of the internal:

1. Brand designation.

2. U — external unit, belongs to the U-Match series.

3. Operating mode:

  • C — cold only;
  • H — heat + cold.

4. Compressor type:

  • N — normal without inverter control;
  • D — Inverter compressor DC Inverter;
  • A — inverter compressor AC Inverter.

5. Nominal cooling capacity in thousands BTU 09 = 9000 BTU.

6. Type of climatic design:

  • N — designed for zone T1;
  • T — for zone T3.

7. Type of power supply:

  • K — single-phase 220–240V, 50 Hz;
  • M — three-phase 380-415V, 50 Hz.

8. Type of refrigerant:

  • 1 — R22;
  • 2 — R407C;
  • 3 — R410A.

9. Modification of the external unit. There can be both letters A, B, C, D, etc., and numbers after the letter denoting a submodifier, for example B2, C1.

10. O — designation of the external unit.

Indoor Unit (not U-Match):

The designation of the internal blocks of semi-industrial split systems not related to the U-Match series is slightly different, but also quite simple:


1. CH — brand designation, CHML — multi-split system.

2. Type of indoor unit:

  • D — channel;
  • C — cassette;
  • F — floor-ceiling.

3. The cooling capacity is 24000 BTU.

4. Type of refrigerant:

  • N — 410A;
  • R — R32.

5. K — single-phase 220–240V, 50 Hz.

External unit for multi-split systems:

As for external blocks for multi-split systems, the decryption is similar, an example:

1. CH — brand designation, ML — multi-split system.

2. U — external unit.

3. The cooling capacity is 28000 BTU. 4. Type of refrigerant:

  • N — 410A;
  • R — R32.

5. K — single-phase 220–240V, 50 Hz.

6. The number of connected indoor units is 4. Occurs from 2 to 5.