Remko Air conditioning cold water DKT 21-4 1611302

Cold water ceiling cassette for installation in false ceilings with Euro grid dimensions in the four-pipe system for connecting external controls.

Elegant cover made of white, impact-resistant plastic. Housing made of dimensionally stable sheet steel, fully insulated.
Smooth, low-noise centrifugal fan with three-speed adjustable, thermally protected drive motor, statically and dynamically balanced. Manual pre-selection of stages via external input. Protection against external influences by grille inside the unit.
Air inlet in the centre of the cover with large air inlet grille and regenerable air filter behind it.
Air outlet via 4 air outlet openings with manually adjustable swing louvres.
Air cooler as single circular heat exchanger in Cu/Al design made of seamlessly drawn copper pipe with form-fit aluminium fins for cold or hot water or water/glycol mixture up to max. 80°C. Tightness tested at the factory. Brass pipe connections in imperial design with vent valves on the side of the appliance.
Insulated condensate tray made of plastic and internal condensate pump with a max. delivery head of 500 mmWS from the bottom edge of the appliance. Pump operation activated by float switch when cooling is required, safety switch-off by float switch if the amount of condensate is too high and the cooling valve is switched off. Condensate connection hose on the side of the appliance inside the false ceiling. Electrical switch box with connection terminals on the side of the unit inside the suspended ceiling.
The unit can be controlled via an external controller, BMS or similar with outputs ‘Cooling request’, ‘Heating request’, ‘Fan speed 1’, ‘Fan speed 2’ and ‘Fan speed 3’. Restart possible after power failure.
The medium volume flow in cooling mode is controlled by a standard 3-way valve assembly ‘Cooling’ on the device.
Heating mode is controlled on site.

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

Included in the standard scope of delivery:
Cover
Internal condensate pump
Connection option for outside air supply and second room cooling
Three-way valve assembly ‘Cooling’

Available as accessories:
External condensate pump
Room temperature control

Technical performance data:
MakeREMKO
TypeDKT 21-4
Nominal cooling capacity 1) [kW]2.20
Nominal cooling capacity, sensitive 1) [kW]2.00
Nominal heating capacity 2) [kW]1, 90
Air flow rate per stage [m³/h]360/450/660
Sound pressure level per stage 3) [dB(A)]23/28/38
Voltage supply [V/~/Hz]230/1/50
Electr. Nominal power consumption [kW]0.06
Nominal electrical current consumption [A]0.27
Operating mediummax. 35% glycol
Operating limits medium [°C]+4 to +80
Operating pressure, max, Medium [kPa]1400
Nominal volume flow, medium K/H [m³/h]0.38/0.16
Nominal pressure loss, internal cooling [kPa]13.70
Nominal pressure loss, internal heating [kPa]31, 40
Medium connections cooling3/4 ‘
Medium connections heating1/2 ’
Dimensions unit (H/W/D) [mm]298/570/570
Dimensions cover (H/W/D) [mm]30/720/720
Weight [kg]22.0

1) Room temperature TK 27°C, FK 19°C, medium inlet 12°C, medium outlet 7°C, 0% glycol concentration, max. air volume flow2) Room temperature TK 27°C, FK 19°C, medium inlet 12°C, medium outlet 7°C, 0% glycol concentration, max. air volume flow air flow rate
2) Room temperature TK 20°C, FK 19°C, medium inlet 70°C, medium outlet 60°C, 0% glycol concentration, max. air flow rate
3) Distance 1 m free field with hypothetical sound attenuation in the room of -9dB(A)