RoomMaster ABR unit
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RoomMaster ABR unit Technical data

TECHNICAL DATA Fläkt Woods The right is reserved to introduce changes.

TECHNICAL DATA Description System RoomMaster System RoomMaster consists of a room-located ABR size 1 or ABR size 2 unit with supply and exhaust air functions and an integrated Floormaster device. ABR size 1 is a single unit, whereas ABR size 2 consists of two units, a unit part and a device part. The units are supplied complete with the necessary control and regulation equipment. Select RoomMaster The purpose of RoomMaster is to enable premises to benefit from efficient ventilation with a minimum of installation work. Holes in the external wall for outdoor air and extract air and an earthed...

TECHNICAL DATA ABR size 1 - general Filters The supply air filter is of Class F6 (F65), whereas the exhaust air filter is of Class F5 (F45). A limit switch interrupts the voltage to the components in the unit when the inspection hatch is opened. Rotary heat exchanger The heat exchanger is made of aluminium with a forced air cleaning sector. The temperature efficiency is 84 % at 165 l/s. The unit has a 100 mm high base which is integrated with the casing. Delivery / transport The unit is delivered ready assembled on a pallet base, which is used for lifting and transport. The fans are...

TECHNICAL DATA ABR size 2 – general Filter Duct connection The supply air and exhaust air filters are deeply pleated fine filters of the disposable type. Filter class F7 (F85) for both supply air and exhaust air. The filter cassettes are locked by an eccentric construction, which makes it easy to remove and replace the filters. At the same time the filter frame is pressed against a seal, which provides an extremely good seal. As standard the unit has connections both at the top and at the rear. The duct connections at the rear are closed on delivery with a cover which is easily removed. The...

TECHNICAL DATA ABR size 2 - functions, operation Electrical, control, regulation and monitoring equipment Manual choice of operating mode The following operating modes can be selected with the operating mode buttons on the keyboard: The electrical, control, regulation and monitoring equipment is specially adapted for high functionality and userfriendliness. The unit is equipped with programmable digital control and regulation systems. There is a control panel on the door of the unit, which consists of a keyboard and an illuminated text window. The desired operating mode is selected with...

TECHNICAL DATA ABR size 2 - functions, operation Standard functions on the control card Setting – control: Performed via the control panel. The set values are stored and are protected in the event of voltage failure. Basic data (default values) are always stored in the control unit. See also the instruction: Operation and care. Regulation: The heat exchanger, air heater and supply air flow, together with the air cooler (where present), are regulated in sequence in order to maintain the supply air temperature at a constant level. Exhaust air-compensated supply air regulation: Ensures...

TECHNICAL DATA ABR size 2 - room unit with cooling coil System description Dimensions – Pipe connection Cooling effect RoomMaster ABR size 2 with a cooling coil is a complete room unit. In addition to the ventilation unit, the unit has a connected air cooler and the necessary control and regulation equipment. The cooling system is based on water as the coolant. In order to obtain a complete cooling system, the room unit is connected to a liquid cooling unit or is connected to a district cooling network. The following apply to the graphs: Incoming air temperature: 25°C Relative humidity: 50%...

TECHNICAL DATA Planning and design directives, general Variable diffusion pattern Installation example The air velocity through the surface of the device is very even. The comfort distance from the front of the device part can be reduced by fitting self-adhesive tape on the inside of the front mat. The comfort distance is then increased along the sides. Normal diffusion pattern ABR Duct connection from the rear with combination cover. Broad diffusion pattern Planning and design procedure 1. Determine the air flow, which is affected by: ● Number of persons for whom the premises are intended....

TECHNICAL DATA ABR size 2 - planning and design directives, cooling Risk of freezing in the cooling coil Cooling effect If the water in a coil freezes, the coil may burst, which in turn means that the water will drain from the system and may cause water damage. In order to prevent operating breakdowns and the risk of freezing at low outdoor air temperatures, one of the following alternatives is recommended: The total cooling effect is the sum of the noticeable, dry (perceptible) cooling effect and the latent cooling effect in conjunction with moisture precipitation. The total cooling effect...

TECHNICAL DATA ABR size 1 - technical data Flow and pressure data Reduced flow in l/s Air flow Selector due to the additional pressure drop l/s switch position 20 Pa 40 Pa 60 Pa 80 Pa Acoustical data Sound pressure levels in reverberation field. Installation with unit on external wall with combination cover ABRZ-01-1. Air flow l/s 1) 2) 3) Selector. Unit switch position dB(A)1) Room attenuation (Lw – Lp) = 12 dB. Room attenuation (Lw – Lp) = 8 dB. Applicable for a 10 m distance from a combination cover mounted on an external wall. Air heater, electric An electric coil with 1000 W output is...

TECHNICAL DATA ABR size 2 - technical data Acoustic, pressure and flow data Available total pressure, Pa Air flow l/s The graph shows the available total pressure other than for normal installation with a short outdoor air and extract air duct with our combination cover ABRZ-01-2. Sound pressure levels are applicable for room attenuation (Lw - Lp) of 12 dB in the so-called reverberation field. Sound pressure levels outdoors at a distance of 10 m from a combination cover mounted on an external wall can be achieved by increasing the indicated value in the graph by 6 dB. Electrical connection...