ISH

ISH

Free hanging installation above workstations

Heating mode, vertical air discharge

Cooling mode, horizontal air discharge

For industrial zones without air polluting processes

Impulse diffusers with horizontal air discharge in cooling mode

Nominal sizes 250, 355, 450, 560 mm
Volume flow rate range 205 – 1585 l/s or 738 – 5706 m³/h
Casing made of galvanised sheet steel
For variable and constant volume flows
Installation either free hanging or on walls or pillars
Large throw distance due to high discharge momentum
Discharge direction can be adjusted manually or with an actuator
Chain pull for adjusting the discharge direction manually

Optional equipment and accessories

Exposed diffuser parts in RAL CLASSIC colours
Electric and thermal actuators for adjusting the air discharge direction
Bowden cable for adjusting the discharge direction manually
Wall mount

Initialize order code

Application

Application

Type ISH impulse diffusers are used primarily for industrial zones without air polluting work processes
Horizontal air discharge in cooling mode, vertical air discharge in heating mode
Ventilation of large occupied zones due to high discharge momentum
For variable and constant volume flows
For supply air to room air temperature differences from –8 to +12 K
Installation at heights between 3.5 m and 10 m, either free hanging or on walls or pillars
Installation preferably above occupied zones
Ideal for use with TDC temperature difference control module

Special characteristics

Large throw distance due to high discharge momentum
Horizontal or vertical air discharge
Free hanging installation above the occupied zone
Air discharge direction is adjusted manually or with an electric or thermal actuator

Nominal sizes

250, 355, 450, 560 mm

Description

Parts and characteristics

Perforated sheet metal casing with additional rectangular air outlets
Air control disc to control the air discharge direction
Top entry spigot for connection to a vertical duct

Attachments

Chain pull for manual adjustment, approx. 2.0 m
B: Bowden cable for manual adjustment, approx. 2.8 m
E*: Electric actuator
T: Thermal actuator

Accessories

W00: Wall mount
K00: Chain fixing
WK0: Wall mount and chain fixing

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

Materials and surfaces

Casing with base plate, cross bar and air control disc made of galvanised sheet steel
Chain pull made of galvanised steel
Pulley wheels made of plastic, UL 94, V-0, flame retardant
B: Hand lever made of galvanised steel, Bowden cable made of galvanised steel and with PE sheath
P0: Powder-coated RAL 9010, pure white
P1: Powder-coated, RAL CLASSIC colour

Standards and guidelines

Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

Maintenance-free as construction and materials are not subject to wear
Inspection and cleaning to VDI 6022

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

Schematic illustration of ISH with electric actuator

① Air outlet
② Casing
③ Base plate
④ Air control disc
⑤ Cross bar
⑥ Spigot
Optional
⑦ Cable gland
⑧ Electric actuator

Functional description

Impulse diffusers discharge the air from air conditioning systems with a high momentum such that large throw distances are achieved. This allows for the ventilation of large areas.

Type ISH impulse diffusers are used primarily for industrial zones without air polluting work processes. They are installed above the occupied zone. An adjustable air control disc allows for adapting the air discharge direction to heating or cooling mode. The supply air to room air temperature difference may range from –8 to +12 K.

Cooling mode

In cooling mode the supply air is discharged horizontally.

Heating mode

In heating mode the air is discharged vertically.

The air control disc can be adjusted manually or with a thermal or electric actuator.

Extract air units should be installed in the upper part of a room, above the occupied zone.

Nominal sizes	250, 355, 450, 560 mm
Minimum volume flow rate	205 – 785 l/s or 738 – 2826 m³/h
Maximum volume flow rate, with L_WA ≅ 55 dB(A)	400 – 1585 l/s or 1440 – 5706 m³/h
Supply air to room air temperature difference	–8 to +12 K

Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures.

The maximum volume flow rates apply to a sound power level of approx. 55 dB (A).

ISH supply air, horizontal air discharge, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
250	205	738	12	34
250	270	972	21	43
250	340	1224	33	50
250	400	1440	46	55
355	335	1206	11	39
355	435	1566	18	47
355	535	1926	27	54
355	565	2034	30	55
450	470	1692	9	30
450	625	2250	15	39
450	780	2808	24	47
450	950	3420	35	55
560	785	2826	14	30
560	1050	3780	24	40
560	1310	4716	38	48
560	1585	5706	55	55

ISH supply air, vertical air discharge, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
250	205	738	12	39
250	255	918	20	46
250	300	1080	27	51
250	350	1260	37	55
355	315	1134	10	40
355	370	1332	14	45
355	435	1566	19	50
355	515	1854	27	55
450	430	1548	9	36
450	530	1908	13	43
450	630	2268	19	49
450	730	2628	25	55
560	600	2160	9	34
560	795	2862	16	43
560	985	3546	24	50
560	1180	4248	35	55

Impulse diffusers with a cylindrical casing, for industrial zones without air polluting work processes. With adjustable air control disc for air patterns from horizontal (0°) to vertical (90°). Large throw distances with horizontal air discharge. For free hanging installation and also for installation on walls or pillars.

Ready-to-install component which consists of a cylindrical perforated metal casing with air outlets, an air control disc and a top entry spigot.

Spigot suitable for ducts to EN 1506 or EN 13180.

Sound power level of the air-regenerated noise measured according to EN ISO 5135.

Special characteristics

Large throw distance due to high discharge momentum
Horizontal or vertical air discharge
Free hanging installation above the occupied zone
Air discharge direction is adjusted manually or with an electric or thermal actuator

Materials and surfaces

Casing with base plate, cross bar and air control disc made of galvanised sheet steel
Chain pull made of galvanised steel
Pulley wheels made of plastic, UL 94, V-0, flame retardant
B: Hand lever made of galvanised steel, Bowden cable made of galvanised steel and with PE sheath
P0: Powder-coated RAL 9010, pure white
P1: Powder-coated, RAL CLASSIC colour

Technical data

Nominal sizes: 250, 355, 450, 560 mm
Minimum volume flow rate: 205 – 785 l/s or 738 – 2826 m³/h
Maximum volume flow rate, with L_WA ≅ 55 dB(A): 400 – 1585 l/s or 1440 – 5706 m³/h
Supply air to room air temperature difference: –8 to +12 K

Sizing data

V _______________________ [m³/h]
Δp_t _______________________ [Pa]

Air-regenerated noise

L_WA _______________________ [dB(A)]

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

Type
ISH Impulse diffuser

Actuator
       No entry: chain pull for manual adjustment
B       Bowden cable for manual adjustment
E4       230 V AC, 3-point
E5       24 V AC/DC, 3-point
E6       24 V AC/DC, modulating 0 – 10 V DC
T       Thermal actuator

Nominal size [mm]
250
355
450
560

Fixing
       No entry: none
W00       With wall mount
K00       With chain fixing (only for variants with chain pull)
WK0       With wall mount and chain fixing (only for variants with chain pull)

Exposed surface
       No entry: galvanised
P0       Powder-coated RAL 9010, pure white
P1       Powder-coated, specify RAL CLASSIC colour

       Gloss level
       RAL 9010 50 %
       RAL 9006 30 %
       All other RAL colours 70 %

Order example: ISH–E5/450/P1-RAL 9016

Actuator	24 V AC/DC, 3-point
Nominal size	450 mm
Fixing	Without
Exposed surface	RAL 9016, traffic white, gloss level 70 %

Accessories, Dimensions and weight, Product details

Wall mount (accessory) 00205500_0

① Diffuser
② Centre of diffuser
③ Wall mount, inner part
④ Wall mount, outer part
⑤ Wall bracket

ISH

Chain pull for manual adjustment

ISH

Nominal size	ØD₁ mm	ØD mm	m kg
250	252	248	5.0
355	357	353	7.4
450	452	448	10.1
560	562	558	13.1

Chain fixing

① Chain fixing

Installation details, Basic information and nomenclature

Free hanging installation above workstations

For industrial zones without air polluting work processes
Installation preferably above occupied zones

Installation and commissioning

Installation preferably at heights between 3.5 m and 10 m
Freely suspended installation
Vertical duct connection
The spigot has to be screw-fixed to the duct and the entire system has to be securely fixed and suspended (by others)
Fixing to walls or pillars with optional wall mount
Attach the chain fixing and the hand lever of the Bowden cable to the wall or pillar, if necessary

These are only schematic diagrams to illustrate installation details.

Principal dimensions

ØD [mm]

Outer diameter of the spigot

ØD₁ [mm]

Outer diameter of the diffuser

m [kg]

Weight

Nomenclature

L_WA [dB(A)]

A-weighted sound power level of air-regenerated noise

V [m³/h] and [l/s]

Volume flow rate

Δt_z [K]

Supply air to room air temperature difference

Δp_t [Pa]

Total differential pressure

All sound power levels are based on 1 pW.

Downloads

product information

Product data sheet Actuators – Heating/Cooling

PD_2017_03_Heating_cooling_DE_en Product data sheet 670 KB pdf
Product data sheet Actuators – Thermal actuators

PD_2017_03_Thermal_DE_en Product data sheet 230 KB pdf
Product data sheet Actuators – Modulating actuators

PD_2017_03_Variable_DE_en Product data sheet 430 KB pdf
Product data sheet Type ISH

Product data sheet 1,6 MB pdf

certificates

Declaration of hygiene conformity Type ISH

ISH_HC_2024_05_DE_en Hygiene certificate 1,3 MB pdf
Non-CE Manufacturer's statement ISH

ISH_NotCE_2022_02_08_14_32_30_DE_en Certificate 1,3 MB pdf

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ISH

For industrial zones without air polluting processes

Application

Description

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

Accessories, Dimensions and weight, Product details

Installation details, Basic information and nomenclature

Downloads

product information

Product data sheet Actuators – Heating/Cooling

Product data sheet Actuators – Thermal actuators

Product data sheet Actuators – Modulating actuators

Product data sheet Type ISH

certificates

Declaration of hygiene conformity Type ISH

Non-CE Manufacturer's statement ISH

TECHNICALLY NECESSARY

STATISTICS AND WEBSITE ANALYSIS

CONVENIENCE AND PERSONALISATION

FOR THE BEST TROX EXPERIENCE