MH-XM MIXED AIR – HYGIENIC TYPE DX AIR HANDLING UNIT

Hygienic air handling units used in places such as pharmaceutical production, laboratories, operating rooms, museums, special archive areas, and collection spaces are essential partners in clean area central system applications.

The unmatched advantage of DX air handling units lies in transferring heat directly to the air through the refrigerant in the DX coil, minimizing energy and heat loss. When comparing energy efficiency of the system, it emerges as the most suitable solution in terms of energy savings during the selection of insulation materials and operational costs, making it a central system with external units that offers the optimal solution.

Construction Specifications
– Frame structure: 40 mm
– Frame material: Aluminum
– Panel structure: Double-walled 50 mm
– Panel materials: Inner wall 304 Stainless Steel, Outer wall Painted sheet Std. (RAL 9002)
– Insulation: Rock wool
– Insulation density: 70 kg/m3

External Panels
– Fully detachable frame design made of st/zn or aluminum.
– Panels are made of galvanized sheet metal with a painted outer surface (RAL 9002).
– Corner material: 40 x 40
– Unit panels are fastened externally with special screws for easy disassembly.

Internal Panels
– The interior surfaces of the units are completely smooth without any welding seams or sharp edges.
– Panel interiors are either galvanized or painted (RAL 7040) (according to customer preference).

Module Connections
– Modules are securely tightened from within the units using strong connecting parts to connect them to each other.

Service Doors
– The doors have the same appearance as the panels.
– In all models, service doors are fixed on hinges with compression handles.

Accessories: Observation glass, lighting lamp

Filters
Filters feature a frame structure that allows for easy removal and installation via maintenance access panels on air handling units.
– Filter frames are made of galvanized sheet metal (painted for hygienic devices) and are equipped with spring clip mechanisms for compressing the filters.
– The surfaces where filters will be placed are sealed with gasketed seals, and filter cassettes sit on these seals.
– Factory-prepared holes are appropriately drilled in filter cells for the hose connections of pressure gauges indicating the differential pressure of the filter group.

Accessories: Pressure gauge (0-500 Pa)

Filter Classes
– Coarse filter – G4, filter width: 48 mm
– Fine filter – F5 – F9, bag length: 635 mm
– Compact filter – F5 – F9, filter length: 292 mm
– Absolute filter – H11 – H13, filter length: 292 mm

Heating Coils
– Accessed by sliding out from the side. Seamless copper tubing combined with aluminum fins.
– Enclosed within a frame made of galvanized sheet metal.
– Minimum distance between aluminum fins: 2.1 mm.
– Equipped with steel pipe collectors.
– Maximum pressure drop on the fluid side is selected as 25 kPa.
– Equipped with drainage and air venting arrangements.

Cooling Coils
– Accessed by sliding out from the side.
– Constructed with seamless copper tubing combined with aluminum fins.
– Enclosed within a frame made of galvanized sheet metal.
– Minimum distance between aluminum fins is 2.1 mm. Equipped with copper tube collectors.
– Collectors outside the panels are insulated.
– Aluminum fins can be epoxy coated if desired.

Drip Tray and Drain Pan
– Drip tray blades are made of heat-resistant PPRC plastic profiles framed with stainless steel.
– Easily removable from the cell.
– Drain pan is made of stainless steel.
– Drain connection is 33 mm (1″) stainless steel pipe.

Plug Fan
– Single inlet, backward curved blade fans.
– Rotor is directly mounted onto the motor shaft.
– All moving systems are mounted on spring or rubber isolators.
– Fan can be accessed from the side for maintenance.
– Connection parts for transportation are available.
– Capacity information of fans and all documents conform to TÜV-test values.

Accessories: Pressure gauge – Frequency converter

Silencers (Sound Attenuators)
– Inside the cell, vertically mounted sound attenuator baffles are present.
– Sound attenuator material consists of non-combustible DIN 4102 A2 class and moisture-resistant type, made from air conditioning boards with a density of 50 kg/m3.
– Baffle frames are made of galvanized sheet metal in standard versions. The surface of the sound attenuator material is covered with black glass wool plates to prevent wear of the sound attenuator material at air velocities up to 20 m/s.

Humidifier – Steam Type
– Includes a sealed access cover and observation glass for intervention inside the cell.
– There is a collector and drainage tray to collect and drain condensate water under the steam distributor.
– Steam generator is supplied in a package with control unit and connecting hose for installation.