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SCHAKO KG
DISA-H (2025)

DISA-H (2025)

Product catalog summary

Induction Diffuser DISA-H Overview
The DISA-H induction diffuser combines air diffuser flow characteristics with water-based heat exchangers to efficiently manage thermal loads while maintaining low air exchange rates. It is suitable for installation in suspended ceilings in environments such as hotels, hospitals, and offices. The diffuser is available in three nozzle configurations and lengths of 900, 1200, and 1500 mm, with ventilation grilles ordered separately.

Advantages

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

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 at low velocity, ensuring efficient thermal load compensation.

Construction and Models

Galvanized sheet steel housing with optional painted finish
Available in 2-pipe or 4-pipe systems
Nozzle configurations for small, medium, and large air volumes
Accessories include rubber lip seals, flexible hoses, and various louvre grids

Technical Data
Performance data includes cooling capacities for different configurations and lengths, with detailed specifications for primary and secondary air flows, cooling capacities, and pressure drops.

Control Units

Valves and actuators for temperature control
Condensation monitors to prevent dew point issues

Assembly and Maintenance
Includes guidelines for installation and maintenance to ensure optimal performance and longevity of the diffuser.

Specifications
The document outlines the cooling and heating capacities of the DISA-H diffuser, with data on primary air and water capacities, pressure drops, and temperature differences. The diffuser is available in different sizes (900, 1200, and 1500 mm) and configurations (cooling and heating).

Cooling and Heating Capacities
Tables provide detailed data on the cooling and heating capacities for various air and water flow rates, pressure drops, and temperature differences. The data is segmented by diffuser size and configuration.

Sound Levels
The document includes sound pressure levels for different configurations, indicating the diffuser's noise performance under various conditions.

Correction Factors
Correction factors for critical throw, jet path, and maximum end velocity are provided for different blade positions and grille types. These factors are essential for adjusting performance based on specific installation conditions.

Construction and Version Information
The document notes that construction is subject to change and provides version details for the DISA-H diffuser models.

Key Parameters

Cooling and heating capacities are provided in watts for different flow rates and pressure drops.
Sound levels are specified in decibels (dB(A)).
Correction factors are given for various blade positions and grille configurations.

Recommendations
The document suggests using the correction factors to adjust the diffuser's performance based on specific installation and operational conditions.

Induction Diffuser Specifications
The document outlines the specifications and configurations for the DISA-H induction diffuser series, including models with and without grilles. Key parameters include blade positions (straight, 44° diverging, 84° diverging) 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 (ΔT), flow rates (l/h), and correction factors for TV and I diagrams. These factors are crucial for adjusting the performance of the diffusers under varying conditions.

Valve and Actuator Specifications
The document details the specifications for 3-way and 2-way valves, including nominal diameters, connection types, and kvs values. Actuators compatible with these valves are specified, with details on operating voltage, activation types, and connection diagrams.

Control Units and Thermostats
Control units like RCU 10 and RCU 15 are described, highlighting their operating modes, control signals, and connection diagrams. Room thermostats such as RAA41 and RDG are also covered, with features like manual switches, display options, and automatic mode switching.

Condensation Monitoring
Models QXA2602, QXA2604, QXA2601, and QXA2603 are discussed for their role in detecting relative humidity near the dew point. The document explains the mode of action and the impact of relay contact changes on cooling systems.

Specifications
The document outlines the specifications for wiring diagrams QXA2601, QXA2602, QXA2603, and QXA2604. These systems operate on AC/DC 24 V or AC 230 V and feature potential-free changeover contacts for various voltage ranges. They are designed for quick installation and come with integrated or remote sensors and a two-color LED status display.

Procedures
1. Cooling capacity is managed by valve position or controller until the condensation signal ceases.
2. Water supply temperature is adjusted by a selectable value and gradually returned to normal once the signal disappears.

Norms and Recommendations
Strain relief for AC 230 V terminals is necessary, and cables should be secured with cable binders.

Induction Diffuser DISA-H
The DISA-H series is designed for horizontal installation in suspended ceilings, suitable for hotels, hospitals, and offices. It features easy maintenance with components like grille and plenum box cleaned using compressed air. The diffuser is available in various configurations for different air volumes and includes a heat exchanger for cooling or heating.

Technical Parameters
Key parameters include primary air flow, static pressure, water-side pressure loss, and sound pressure level. The document provides detailed measurements and configurations for installation and operation.

Order Details
Includes options for system type (2-pipe or 4-pipe), nozzle configuration, length, water connection, and additional accessories like valves, actuators, and grilles. The document specifies product details for SCHAKO type DISA-H with various customization options.

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

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DISA-601
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