Blauberg KOMFORT EC DW3800-2
Air handling units for efficient supply and exhaust ventilation in flats, houses, cottages and other buildings.Heat recovery minimises ventilation heat losses.Provide controllable air exchange to create the best suitable indoor microclimate.Compatible with round Ø200 to 400 mm round air ducts.
The casing is made of double-skinned aluzinc panels, internally filled with 20 or 25 mm mineral wool layer for heat and sound insulation.The casing has fixing brackets with vibration absorbing connectors for easy installation.The spigots for connection to the air ducts are located at the side of the unit and are rubber sealed for airtight connection to the air ducts.The service panel ensures easy access to the internals for cleaning, filter replacement and other maintenance operations.
High-efficient external rotor EC motors and centrifugal impellers with backward curved blades are used for air supply and exhaust.EC motors have the best power consumption to air capacity ratio and meet the latest demands concerning energy saving and high-efficient ventilation.EC motors are featured with high performance, low noise level and totally controllable speed range.Dynamically balanced impellers.
The unit is equipped with a water (glycol) heater for operation at low outside air temperature.The integrated water heater is activated to warm up supply air flow if set indoor air temperature may not be reached by means of heat recovery only.Smooth water heater power control ensures automatic supply air temperature maintaining.The air temperature sensor downstream of the waterheating coils and the return water temperature sensor are used for freezing protection of the water heater.
Mounting to the ceiling with fixing brackets.The correct mounted unit must provide free condensate collection and drainage as well as good access for servicing and filter replacement.Access for maintenance:
The KOMFORT EC DW600/1000 models are equipped with a highefficient counter-flow polystyrene heat exchangers with a large surface area.The KOMFORT EC DW2000/3800 models are equipped with a high-efficient cross-flow aluminium heat exchangers with a large surface area.The air flows are fully separated within the heat exchanger. Odours and contaminants contained in the extract air are not transferred to the supply air flow.Heat recovery is based on utilization of heat energy contained in the extract air stream for heating up of supply air stream. Extract air transfers most of its heat to the intake air flow. Heat recovery reduces heat energy losses in cold seasons. In summer the heat exchanger performs reverse and intake air is cooled in the heat exchanger by the cool extract air. This contributes to better performance of the air conditioner in ventilated premises.The electronic frost protection system based on bypass and heater is used to prevent the heat exchanger freezing in cold seasons. The bypass damper is opened and the heater is turned on automatically according to the feedback from the temperature sensor. Cold intake air passes by the heat exchanger and is warmed up to set temperature in the heat exchanger. Synchronously extract air that passes by the heat exchanger is used for its defrosting. After a freezing danger is over the bypass damper is closed, the heater is turned off. The unit reverts to the normal operation mode.The drain pan under the heat exchanger block is used for condensate collection and drainage.
KOMFORT EC DW600/1000: the built-in G4 (optionally F7) pocket supply filter and G4 cassette extract filter provide efficient air filtration.KOMFORT EC DW2000/3800: the built-in G4 supply and extract cassette filters provide efficient air filtration.
CONTROL AND AUTOMATION
The unit incorporates an integrated control system with a wall-mounted control panel and a sensor display.The standard delivery set includes a 10 m cable for connection of the unit and the control panel.Automation functions:
|Parameter||KOMFORT EC DW3800-2||Measurement unit|
|Number of water coil rows||2||-|
|Total unit current||3.4||A|
|Maximum air capacity||3800||m³/h|
|Total unit power||1.99||W|
|Sound pressure level at 3 m distance||59||dBА|
|Temperature of transported air||-25 +50||°С|
|Insulating material||25 mm mineral wool||mm|
|Supply filter||G4 (F7)||-|
|Heat recovery efficiency||75||%|
|Heat exchanger type||cross-flow||-|
|Heat exchanger material||aluminum||-|
|Connected air duct diameter||400||mm|
|Air duct||for round air ducts||-|
|Type||Supply and exhaust||-|
|KOMFORT EC DW3800-2||399||1265||1130||565||297||632.5||830||415||1595||1643|
|Model||Replaceable filter G4
|KOMFORT EC DW3800-2||FP-EC DW3800 G4||FS1