Remko Air conditioning cold water WLT 30-3 EC 1614830

Chilled water wall-mounted unit with EC fan and 3-way valve in 2-pipe design
Unit housing made of white, impact-resistant plastic (similar to RAL 9016). Device fastening by means of wall bracket to be attached at the rear.
Air supply via large air inlet grille at the top of the device. Air inlet grille can be easily removed using the quick-fit system to clean and disinfect the heat exchanger during appliance maintenance. Two separate air filters can be removed individually and are easily accessible from the front. Air discharge via horizontal air deflection louvres and manually adjustable vertical louvres possible. Horizontal air guide vanes can be individually adjusted by remote control and automatic swing operation is possible for optimised air distribution in the room. Easy removal of the horizontal air guide vanes via quick mounting system for cleaning the tangential fan roller during device maintenance.
Heat exchanger coil in copper/aluminium design made of seamlessly drawn copper pipe with form-fit aluminium fins to increase the heat exchanger surface, suitable for water or water/glycol mixture up to +70°C medium temperature. Operating limit of the heat exchanger at 16 bar, factory-tested for tightness up to 24 bar. Pipe connections in metric design. Free choice of on-site hydraulic connection, as pipe ends are designed without a predetermined transition. Venting and draining valve built into the device. Hose for draining the unit is routed to the condensate collection tray below the heat exchanger.
Smooth, low-noise centrifugal fan with electronically controlled EC fan motor, statically and dynamically balanced. Tangentially mounted fan roller for even air distribution and optimum utilisation of the heat exchanger surface area.
Standardly installed 3-way valve for regulating the medium volume flow through the heat exchanger when cooling/heating is required or via bypass outlet into the return.
Insulated plastic condensate tray for collecting the condensation water produced on the heat exchanger. Condensate hose for discharging the condensate mounted on the rear of the appliance, factory-fitted with outlet to the left or can also be customised with outlet to the right by repositioning the hose.
Accessibility of the terminal block for connecting the mains supply line via the removable unit corner, even if the unit is already installed.

Control
Nearly infinitely variable speed control in the range of approx. 25...100% possible for user-specific adjustment of the fan speed. Maintenance-free EC motors with permanent magnets enable significantly better efficiency and more constant medium and room temperatures compared to three-speed AC motors, especially in the low speed range. When operated via IR remote control, manual preselection or automatic adjustment of five speeds is possible. When operated via an external controller, three speeds are possible and when operated via a 0...10V DC control signal, a stepless speed range is possible. This means that the generated power and noise emission can be optimally adapted to the current requirements.
Silent function for applications with particularly high noise emission requirements can be selected via remote control. Lowest fan level maximises the feeling of comfort, as the air circulation in silent mode is almost unnoticed. Sound pressure level in silent mode only 23 dB(A).
Turbo function can be selected via remote control to be able to call up the maximum appliance output as quickly as possible when required.

Operation with IR remote control included in the scope of delivery
The device is operated with a five-stage fan speed in the stages ‘Turbo’, ‘High’, ‘Medium’, ‘Low’ and ‘Silent’ via a handy IR remote control with display. Manual selection of the operating modes ‘Ventilation’, ‘Cooling’, ‘Heating’, ‘Dehumidification’, ‘Timer’, ‘Night boost’ and ‘Automatic’. Fan speed can be preselected manually, automatic speed adjustment to the cooling requirement in automatic mode. Restart after power failure. An internal network can be set up with one master device (master) and up to 31 slave devices of different sizes. Devices can be individually addressed by setting the device address on DIP switches on the device board.
Operation with on-site control
Fan can be controlled continuously via 0-10V DC signal to adjust the fan speed precisely to the required cooling load in the room. 3-stage setting of the fan via 3-stage switch (230V) plus automatic mode is also possible.
Switching contacts
Potential-free collective fault signalling contact for signalling an existing device fault for further processing by an on-site building management system or for use of a fault signalling device. External start/stop contact for enabling/disabling the device from an external location. External switchover of cooling and heating operating modes possible via 230 V signal. Modbus interface RS485 for device implementation in building management systems as standard. Comprehensive Modbus data protocol integrated (query and specification of setpoints, operating states, fan stages, swing mode; query of error codes, sensor values...)
Available as accessories:
Cable remote control KF21
Precision room temperature control RR21.2
Precision room temperature control RR22. 2
Condensate pump KP8

Technical performance data:
Type designationREMKO WLT 30-3 EC
Nominal cooling capacity 1) [kW]2.81 (0.82-2.81)
Nominal heating capacity 2) [kW]4.17 (1.22-4.17)
Application range (room volume), approx. [m³]80
Working range, indoor unit [°C]+16 to +35
Air flow rate, min. max.[m³/h]150-560
Sound pressure level 3), min. max. [dB(A)]23-45
Voltage supply [V/Ph/Hz]230/1/50
Protection classIP X0
Electrical rated power consumption [W]27
Electrical rated current consumption [A]0.27
Operating mediumWater, max. 35% ethylene/propylene glycol
Operating pressure, max, Medium [kPa]1600
Medium operating limits [°C]+4 to +70
Nominal flow rate, medium [m³/h]0.48
Nominal pressure loss, internal cooling [kPa]23, 1
Medium connections [mm]12
Medium content [l]2
Condensate connection [mm]16
Dimensions of unit (H/W/D) [mm]315/824/245
Weight [kg]11

1) Room temperature TK 27°C, FK 19°C, medium inlet 7°C, medium outlet 12°C, 0% glycol concentration, max. air volume flow2) Room temperature TK 27°C, FK 19°C, medium inlet 7°C, medium outlet 12°C, 0% glycol concentration, max. air volume flow air volume flow rate
2) Room temperature TK 20°C, medium inlet 50°C, nominal volume flow rate as in cooling mode, 0% glycol concentration, max. air volume flow rate
3) Distance 1 m free field