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DISA-H

Product catalog summary

Overview
Induction diffusers like the DISA-H are designed to efficiently manage thermal loads with low air exchange rates, suitable for environments such as hotels, hospitals, and offices. They combine air diffuser flow characteristics with water-based heat exchangers and are available in three nozzle configurations and lengths of 900, 1200, and 1500 mm.

Advantages

High energy efficiency and performance
Compact dimensions
Low noise levels
Reduced primary air requirements
Low installation and maintenance costs

Functionality
The diffuser uses primary air to induce secondary room air, which is then cooled or heated via a water register. The mixed air is supplied to the room at low velocity.

Construction and Models
Constructed from galvanized sheet steel, the diffuser is available in 2-pipe and 4-pipe systems. Accessories include rubber lip seals, flexible connection hoses, and various louvre grids for air supply and return.

Technical Data
Includes cooling capacities for different configurations and lengths, with detailed specifications on air volume, pressure, and cooling capacity.

Control Units
Features valves, actuators, room temperature control, and condensation monitors to ensure optimal performance and prevent condensation issues.

Assembly and Maintenance
Guidelines are provided for installation and maintenance to ensure proper operation and longevity.

Order Details and Specifications
Detailed specifications and ordering information assist in selecting and procuring the appropriate diffuser model and accessories.

Induction Diffuser Specifications
Specifications include blade positions and correction factors for critical throw and maximum end velocity of the jet, both isothermal and with Coanda effect.

Water Flow and Correction Factors
Tables provide data on water temperature differences, flow rates, and correction factors crucial for adjusting diffuser performance under varying conditions.

Valve and Actuator Details
Specifications for 3-way and 2-way valves, including nominal diameters, connection types, and kvs values. Actuators are described with their operating voltages and activation types.

Control Units and Thermostats
Details on control units and room thermostats, focusing on control signals, operating modes, and voltage requirements.

Condensation Monitoring
Describes condensation monitors and their role in detecting relative humidity near the dew point to prevent condensation-related issues.

Specifications
Outlines specifications for wiring diagrams and induction diffusers, including operating voltages and features like potential-free changeover contacts.

Procedures
Installation involves suspending the device from a load-bearing ceiling using approved materials. Maintenance is simplified by the ability to dismount the grille for cleaning.

Norms and Recommendations
Emphasizes the necessity of strain relief for AC 230 V terminals and proper cable attachment.

Key Parameters and Limitations
Includes operating voltage, potential-free contacts, and the necessity for strain relief. Details on dimensions and configurations are provided.

Accessories and Options
Various accessories are available, including valves, control units, condensation monitors, actuators, and different types of air grilles.

Catalog excerpts

11/15 - 2 Construction subject to change. Version: 14.12.2015 No return possible!

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Induction diffuser DISA-H Description Induction diffusers combine the flow characteristics of air diffusers with the energetic advantages of load discharge via water-based heat exchangers, allowing them to remove high thermal loads from the room while keeping the hygienically required air exchange low. Its low installation depth and horizontal air flow makes it suitable in particular for installation in suspended entrance halls and in suspended ceiling panellings, such as in hotels, hospitals and offices. The primary air (1) supplied from the plenum box induces secondary air in the room (2),...

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Model DISA-H DISA-H-H DISA-H-HT DISA-...-D DISA-...-E DISA-...-F DISA-...- 900 DISA-...-1200 DISA-...-1500 Induction diffuser DISA-H Description of the equipment Construction Housing and nozzle plate - Galvanised sheet steel, with 1 or 2 connection pipes 098, 0123 (standard) or 0148 mm. Painted housing RAL 9005 (optional) - Connection pipe position: - horizontal (-H) - Arrangement of connecting pieces - 1 central connecting piece (-AS1) - 2 central connecting pieces and at the same distance (-AS2/AS3) Heat exchanger - 2-pipe system (cooling or heating) or optionally 4-pipe system (cooling and...

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ICHAK#Induction diffuser DISA-H Models and dimensions Dimensions and weights 1 Housing 2 Heat exchanger 3 Supply air inlet L (mm) = Length (900 ,1200 and 1500) 4 Water connection 0D (mm) = diameter of the connection pipes (98, 123 and 148) 1) Standard unit: housing + heat exchanger (empty) Construction subject to change.

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ICHAKOInduction diffuser DISA-H Arrangement of the connection pieces and water connection Number of connecting pieces with 1 connecting piece (-AS1) Number/position of the connection pipes - 1 connection pipe (standard) - centre back (-AS1) - 2 connection pipes - left and right back (-AS3/-AS2) Number/position of the water connections - with 2 water connections (2-pipe system, standard) - with 4 water connections (4-pipe system) - left back (-WS1) - right back (-WS2) Hydraulic connections DISA-H-H (2-pipe) with 2 connecting pieces (-AS2/AS3) Hydraulic connections DISA-H-HT (4-pipe) Construction...

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The grilles are mounted with concealed mounting VM11. Accessories Rubber lip seal (-GD) At the connection piece for better tightness. Volumetric flow measuring tube (-MR) The supplied primary volumetric flow can be simply checked by checking the static pressure with a Pa meter. The measurement is taken in the supply air area. Flexible connection hoses (-FA) Flexible armoured hose with stainless steel braid, oxygen diffusion layer to DIN 4726, one-sided by means of plug-in fitting 90° with stainless steel prong, support ring, 2 sealing rings (operating pressure 20 bar, test pressure 60 bar, temperature...

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Induction diffuser DISA-HTechnical data Performance data DISA-H-H -...-D -Cooling- L (mm)

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Induction diffuser DISA-HDISA-H-H -...-E -Cooling- L (mm)

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Induction diffuser DISA-HDISA-H-H -...-F -Cooling- L (mm) Construction subject to change.

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Induction diffuser DISA-HDISA-H-H -...-D -Heating- L (mm) Construction subject to change.

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Induction diffuser DISA-HDISA-H-H -...-E -Heating- L (mm) Construction subject to change.

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Induction diffuser DISA-HDISA-H-H -...-F -Heating- L (mm) Construction subject to change.

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Induction diffuser DISA-H Sound level Sound pressure level (room damping -8 dB)11/15 - 14 Version: 14.12.2015 L (mm) Construction subject to change.

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“HAk#Induction diffuser DISA-HFlow data DISA-H-D (with grille) Critical throw Maximum end velocity of jet (isotherm) with coanda effect Correction factors for the critical throw Length correction factors for air volumes Critical jet path - Correction factors for PA grille Maximum end velocity of jet - Correction factors for PA grille PA-1 Blade position straight PA-1 Blade position straight Critical jet path - Correction factors for IB grille Maximum end velocity of jet - Correction factors for IB grille IB-1 Blade position straight IB-1 Blade position straight Version: 14.12.2015 Construction...

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Induction diffuser DISA-H Maximum end velocity of jet (isothermal) at floor level Temperature ratio / induction ratio secondary slot - primary air only Correction factors for temperature ratios TV and Induction ratio Length correction factors for air volumes Maximum end velocity of jet - Correction factors for PA grille Induction ratios and temperature ratios -Correction factors for PA grille PA-1 Blade position straight Maximum end velocity of jet - Correction factors for IB grille PA-1 Blade position straight IB-1 Blade position straight Induction ratios and temperature ratios -Correction factors...

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“HAk#Induction diffuser DISA-HDISA-H-D (without grille) Critical throw Length correction factors for air volumes VZU x KF Correction factors for the critical throw Construction subject to change.

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Induction diffuser DISA-H Maximum end velocity of jet (isothermal) at floor level Temperature ratio / induction ratio secondary slot - primary air only Length correction factors for air volumes VZU x KF NL 11/15 - 18 Construction subject to change. Version: 14.12.2015 No return possible!

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“HAk#Induction diffuser DISA-HDISA-H-E (with grille) Critical throw Maximum end velocity of jet (isotherm) with coanda effect Correction factors for the critical throw Length correction factors for air volumes VZU x KF Critical jet path - Correction factors for PA grille Maximum end velocity of jet - Correction factors for PA grille IB-1 Blade position straight Construction subject to change.

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Maximum end velocity of jet (isothermal) at floor level Temperature ratio / induction ratio secondary slot - primary air only Correction factors for temperature ratios TV and Induction ratio Length correction factor for air volumes Maximum end velocity of jet - Correction factors for PA grille Induction ratios and temperature ratios -Correction factors for PA grille PA-1 Blade position straight PA-1 Blade position straight Maximum end velocity of jet - Correction factors for IB grille IB-1 Blade position straight Induction ratios and temperature ratios -Correction factors for IB grille IB-1 Blade...

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All SCHAKO KG catalogs and technical brochures

Archived catalogs

DISA-B
32 Pages
DISA-601
41 Pages