Remko WP KWK 420-4R, versatile in use 1663420

Hot/cold water chest unit for wall or ceiling mounting in a two-pipe system with large heat exchanger for low medium temperatures.

Easily removable unit cover made of galvanised sheet steel with white base coat and polyester coating, similar to RAL 9016. Vertical air inlet on the underside of the unit with large, regenerable air filter. Vertical air outlet (wall mounting) or horizontal (ceiling mounting) via elegant white plastic outlet grille with side control panel for optional room temperature control (accessory). An extremely smooth-running, low-noise centrifugal fan with three-speed adjustable, thermally protected drive motor, statically and dynamically balanced. Optimum adaptation to requirements thanks to 3 variable speed levels. Air heater or air cooler as four-pipe heat exchanger in Cu/Al design made of seamless drawn copper pipe with form-fit aluminium fins for hot or cold water or water/glycol mixture up to max. 80°C. Tightness tested at the factory. Brass pipe connections in imperial design with bleed and drain valves provided on the left-hand side of the appliance at the factory. Depending on the installation variant, the coil connection side and the condensate connection can be exchanged. Insulated condensate drip tray made of sheet steel for vertical and another for horizontal installation. The device can be operated either via an internal or external room temperature control. When the room temperature is reached, the fans switch off.

The medium volume flow can also be controlled by an optional 3-way valve assembly in the unit.

Accessories available:
Condensate pump, room temperature control for surface mounting, room temperature control for mounting in the unit, switching relay for 4 units, valve assembly two-pipe system, feet, air inlet base, fault signal module

The units comply with the relevant EU regulations and are CE-labelled in accordance with the applicable directives.

Technical performance data:
Type designationREMKO KWK 420-4R
Nominal heating capacity 35/30 per stage 2) [kW]2.71/1.97/1.29
Nominal heating capacity 40/35 per stage 2) [kW]3.91/2.83/1.84
Nominal heating capacity 45/40 per stage 2) [kW]5.10/3.69/2.38
Nominal cooling capacity, sensitive per stage 1) [kW]4.13/3.02/1, 97
Nominal cooling capacity, total per stage 1) [kW]5.89/4.37/2.89
Working range, indoor unit [°C]+15 to +35
Air flow rate, per stage [m³/h]328/524/751
Sound pressure level, per stage 3) [dB(A)]24/36/44
Voltage supply [V/~/Hz]230/1/50
Protection classIP X0
Electr. Nominal power consumption heating 2) [kW]92
Nominal electrical power consumption cooling 1) [A]0.38
Operating mediumwater or
max. 35% ethylene/
propylene glycol
Operating pressure, max. medium [kPa Medium [kPa]600
Nominal flow rate, medium heating 2) [m³/h]0.88
Nominal flow rate, medium cooling 1) [m³/h]8.40
Nominal pressure losses, internal cooling 1) [kPa]40.1
Nominal pressure losses, internal heating 2) [kPa]14, 0
Medium connections1/2”
Medium capacity [l]2.2
Condensate connection [mm]19
Dimensions (H/W/D) [mm]478/1109/219
Weight [kg]23.0

1) Air inlet TK 27°C / FK 19°C, medium temperatures 7/12 °C, 0% glycol concentration, max. air volume flow rate [mm air volume flow rate
2) Air inlet 20°C, 0% glycol concentration, max. air volume flow rate
3) Distance 1.5 m in a 100m² room with a reverberation time of 0.3s, directional factor 4