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LA TU – Outdoor
Description

The LATU range of air source heat pumps is able to meet heat loads from 17–45 kW with a single unit. If banked together, it is possible to achieve outputs up to 630 kW. The high efficiency design delivers excellent seasonal performance which helps to meet building regulations and reduce running costs.

Features and benefits:

  • High efficiency and high output air source heat pump with electronic expansion valve. Designed for outdoor installation.
  • Two scroll compressors flexibly and efficiently adapt to fluctuating heat demand with intelligent load switching between compressors to maximise compressor life.
  • Supplied complete with wall mounted WPM EconPlus heat pump manager.
  • Reduced operational noise through the use of two slow-running EC-3D fans, the encapsulated compressor housing and a free-swinging compressor base plate.

General information

Uniclass 2015

Pr_70_60_37_04 Air-to-water heat pumpsPrimary

CAWS

T90/505 Air-to-water heat pumps

Specification data - Air-to-water heat pumps

Product Reference

LA TU – Outdoor

Type

LA25TU

Nominal power consumption at A7/ W35: 5.89 kW. Size (w x h x d): 1600 x 1940 x 952 mm.

LA40TU

Nominal power consumption at A7/ W35: 8.1 kW. Size (w x h x d): 1735 x 2100 x 952 mm.

LA60TU

Nominal power consumption at A7/ W35: 15 kW. Size (w x h x d): 1900 x 2300 x 1000 mm.

Standard product features

Technical characteristics:

  • Maximum flow temperature: 58°C. (65°C for LA60TU).
  • Air operating limits: -22 to +35°C.
  • Sound power level: 67–74 dB (A), model dependant.
  • Sound pressure level at 10 m: 40–50 dB (A), model dependant.
  • Refrigerant: R404A, except LA60TU which uses R417A.
  • Heating water flow rate/ Pressure drop: 4.5–10.4 m³/h / 3900 or 8300 Pa, model dependant.
  • Heat flow rate (minimum): 7500–14 000 m³/h, model dependant.
  • Rated voltage: Three phase, 400 V, 50 Hz.
  • Fuse protection: C 25 A, except LA60TU which is Z 50 A. (Fuse and cable to be determined in accordance with BS 7671).
  • Reverse circulation defrosting.
  • ETL listed.
  • ERP rating: A++.

Heat output, one compressor (in accordance with EN 14511):

- LA25TU:

  • A-7/ W35 (COP A-7/ W35): 9.10 kW (3.0).
  • A2/ W35 (COP A2/ W55): 11.30 kW (3.8).
  • A7/ W35 (COP A7/ W35): 13.90 kW (4.5).
  • A10/ W35 (COP A10/ W35): 15 kW (4.90).

- LA40TU:

  • A-7/ W35 (COP A-7/ W35): 13.50 kW (3.1).
  • A2/ W35 (COP A2/ W55): 16.80 kW (3.91).
  • A7/ W35 (COP A7/ W35): 20 kW (4.6).
  • A10/ W35 (COP A10/ W35): 21.70 kW (4.90).

- LA60TU:

  • A-7/ W35 (COP A-7/ W35): 21.20 kW (3.0).
  • A2/ W35 (COP A2/ W55): 26.4 kW (3.7).
  • A7/ W35 (COP A7/ W35): 31.9 kW (4.3).
  • A10/ W35 (COP A10/ W35): 33.6 kW (4.40).

Heat output, two compressors (in accordance with EN 14511):

- LA25TU:

  • A-7/ W35 (COP A-7/ W35): 16.70 kW (3.0).
  • A2/ W35 (COP A2/ W55): 19.60 kW (3.7).
  • A7/ W35 (COP A7/ W35): 26.10 kW (4.4).
  • A10/ W35 (COP A10/ W35): 28.20 kW (4.80).

- LA40TU:

  • A-7/ W35 (COP A-7/ W35): 23.80 kW (3.01).
  • A2/ W55 (COP A2/ W55): 30 kW (3.81).
  • A7/ W35 (COP A7/ W35): 35.70 kW (4.4).
  • A10/ W35 (COP A10/ W35): 38.10 kW (4.70).

- LA60TU:

  • A-7/ W35 (COP A-7/ W35): 39.20 kW (2.9).
  • A2/ W35 (COP A2/ W55): 50 kW (3.6).
  • A7/ W35 (COP A7/ W35): 60.10 kW (4.1).
  • A10/ W35 (COP A10/ W35): 64.6 kW (4.20).

Literature
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