Wall-mounted unit WLT 90-2 EC

WLT EC SERIES Wall-mounted units in 2-pipe design with multifunctional control technology

Chilled water systems
Cooling capacity: 2.81 - 9.31 kW
For offices and living spaces

Large power range, precise control and extra quiet operation

The WLT EC series is equipped with modern, energy-efficient EC fans that guarantee a high degree of efficiency – especially in the partial load range. At the same time, the infinitely variable adaptation of the speed-controlled fans prevents strong temperature fluctuations, thereby guaranteeing optimum climatic comfort.
With the integrated Silent function, the development of noise can be considerably reduced if required. The units are therefore particularly suitable for rooms in which air conditioning should be practically unnoticeable, for example, in living spaces or offices.
No additional installation effort arises from the valve subassembly already installed in the unit. Depending on the installed pump type of the cold-water pipe mains, it is possible to choose between the 3-way and 2-way valves in the standard version.
In total, 6 sizes cover the entire power range up to 9.3 kW so that the right unit is available for every application.

Low-noise unit operation ("Silent" mode)
Simple installation above doors or at the top of walls
Removable and easy to clean air filter
Air outlet with swing function
Integrated 3-way or 2-way valve subassembly
Large power range
Programmable 24-hour timer function
Potential-free fault and enabling contacts
5 adjustable fan speeds
Infinitely adjustable power adaptation in automatic operation
Modbus interface RS485 in the standard version

Technical data

Variant	WLT 30 EC	WLT 40 EC	WLT 50 EC	WLT 60 EC	WLT 80 EC	WLT 90 EC
Cooling capacity	2.8 (0.8-2.8) kW	3.7 (0.8-3.7) kW	4.8 (0.8-4.8) kW	6.1 (0.9-6.1) kW	7.4 (1.9-7.4) kW	9.3 (2.0-9.3) kW
Heating capacity	4.2 (1.2-4.2) kW	4.8 (1.2-4.8) kW	6.4 (1.2-6.4) kW	7.8 (1.3-7.8) kW	9.4 (2.3-9.4) kW	11.3 (2.4-11.3) kW
Air flow rate, speed settings, min.-max.	150 - 560 m³/h	150 - 625 m³/h	150 - 950 m³/h	150 - 1120 m³/h	320 - 1650 m³/h	320 - 1790 m³/h
Sound pressure level min.-max.	18-45 dB(A)	19-45 dB(A)	18-47 dB(A)	18-47 dB(A)	19-50 dB(A)	20-51 dB(A)
Power supply	230/1~/50	230/1~/50	230/1~/50	230/1~/50	230/1~/50	230/1~/50