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

Large power, 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.

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

Control system

The standard version has an infrared remote control for switching between cooling, heating, ventilation or dehumidifying modes. With this component, the desired room temperature, switch-on or switch-off time, operation of swing fins and 5 fan speeds can be set. With an optional cabled remote control, each individual unit can also be operated individually within a group control system. 

Thanks to the Modbus interface integrated into the standard version, the units can be incorporated into an existing building control system. An external enabling contact and potential-free collective fault message notification function offer the possibility of actuating the units externally and/or polling a pending fault.

Technical data

Variant WLT 30 EC (3-way)
WLT 30 EC (2-way)
WLT 40 EC (3-way)
WLT 40 EC (2-way)
WLT 50 EC (3-way)
WLT 50 EC (2-way)
WLT 60 EC (3-way)
WLT 60 EC (2-way)
WLT 80 EC (3-way)
WLT 80 EC (2-way)
WLT 90 EC (3-way)
WLT 90 EC (2-way)
Cooling capacity2.81 (0.82-2.81) kW 3.73 (0.82-3.73) kW 4.85 (0.84-4.85) kW 6.10 (0.91-6.10) kW 7.44 (1.90-7.44) kW 9.31 (2.00-9.31) kW
Heating capacity4.17 (1.22-4.17) kW 4.85 (1.22-4.85) kW 6.42 (1.23-6.42) kW 7.81 (1.25-7.81) kW 9.44 (2.27-9.44) kW 11.27 (2.36-11.27) kW
Power supply230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50
Medium connections12 12 12 12 15 15
Series colourSimilar to RAL 9016 Similar to RAL 9016 Similar to RAL 9016 Similar to RAL 9016 Similar to RAL 9016 Similar to RAL 9016
Dimensions H/W/D315/824/245 mm 315/824/245 mm 315/1147/245 mm 315/1147/245 mm 378/1557/300 mm 378/1557/300 mm



User manuals

REMKO WLT 30-3 EC jpg, 401,190,000.0
Assembly drawings
REMKO WLT 30-3 EC jpg, 152,097,000.0

Cooling load calculation for air-conditioners

The following rule of thumb applies when calculating the cooling capacity:
Approximately 30 W of cooling capacity are required per cubic meter. The cooling capacity for a room with a surface area of 28 m2 and height of 2.5 m can be calculated as follows:

28 m2 x 2,5 m x 30 W/m3 = 2.100 Watt (2,1 kW)

We recommend that you always calculate the cooling capacity for the room precisely.

Cooling load calculation Calculate required cooling capacity

Cooling load calculation