VDL

VDL

For high rooms, with adjustable air control blades

Circular ceiling swirl diffusers, with manual or motorised adjustment of the air pattern to ensure draught-free ventilation of the occupied zone both in heating and cooling modes

Nominal sizes 315, 400, 630, 800
Volume flow rate range 65 – 1080 l/s or 234 – 3888 m³/h
Diffuser face made of galvanised, powder-coated sheet steel and of aluminium
For supply air
For variable and constant volume flows
High induction results in a rapid reduction of the temperature difference and airflow velocity
Discharge direction can be adjusted manually or with an actuator
Diffuser face with aerodynamically optimised contours
Ideal for high rooms

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
An extended border improves the horizontal air discharge in cooling mode
Protective cage for use in gymnasiums
Actuators for adjusting the air discharge direction
Diffuser face can be removed from the room side

Application

Application

Type VDL ceiling swirl diffusers are used as supply air diffusers for high rooms in comfort and industrial zones
For production halls, gymnasiums, theatres and conference rooms as well as for large internal spaces in airports, railway stations and shopping centres
For mixed flow ventilation with different air patterns in heating and cooling modes
Horizontal swirling supply air discharge in cooling mode
The efficient swirl creates high induction levels, thereby rapidly reducing the temperature difference and airflow velocity
Angled or vertical air discharge in heating mode
For variable and constant volume flows
For supply air to room air temperature differences from –12 to +15 K
For room heights exceeding 3.8 m
With freely suspended installation, an extended border supports the horizontal air discharge in cooling mode

Special characteristics

For high rooms, with adjustable air control blades
Diffuser face with aerodynamically optimised contours
The air pattern can be adjusted manually or with an actuator
Horizontal or vertical duct connection

Nominal sizes

315, 400, 630, 800

Description

Variants

A: Diffuser face without flange
B: Diffuser face with flange

Connection

F: Diffuser face only
H: Horizontal duct connection, with plenum box
V: Vertical duct connection, with plenum box

Diffuser face

N: Non-removable diffuser face
D: Removable diffuser face, only in variant with plenum box

Parts and characteristics

Circular diffuser face
Removable or non-removable diffuser face
Radially arranged fixed or adjustable blades for air discharge from horizontal (0°) to vertical (90°)
Diffuser face with or without flange
Adjustment mechanism covered by decorative cap

Accessories

Lip seal
Electric actuators for adjusting the air discharge direction
Extended border and protective cage

Useful additions

TDC temperature difference control module

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180
Spigot with groove for lip seal (if accessory lip seal has been ordered)

Materials and surfaces

Blades, casing, extended border, plenum box or spigot and cross bar made of galvanised sheet steel
Quick release fastener made of nylon and rubber IR/BR
Seal made of rubber NR
Spacers made of HD-PE
Diffuser face and decorative cap made of aluminium
Protective cage made of steel mesh
Blades, extended border, diffuser face and decorative cap 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

Informaţii tehnice

FUNCTION, Technical data, Quick sizing, SPECIFICATION TEXT, ORDER CODE

Schematic illustration of the VDL, with plenum box for horizontal duct connection

① Diffuser face
② Decorative cap
③ Swirl unit with opposed blades (only with nominal sizes 630 and 800)
④ Plenum box
⑤ Suspension hole
⑥ Spigot
Optional
⑦ Lip seal
⑧ Actuator and cross bar

Functional description

Ceiling swirl diffusers in air conditioning systems create a swirl to supply air to rooms. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling swirl diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone.

Type VDL ceiling swirl diffusers have adjustable air control blades. Different air patterns allow for cooling or heating mode, or for the adjustment to varying loads. Horizontal air discharge is omni directional. Vertical air discharge is possible in heating mode. The supply air to room air temperature difference may range from –12 to +15 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. 50 dB (A) with damper blade position 0°.

Exact values for all parameters can be determined with our Easy Product Finder design programme.

VDL-*-H-...-M, VDL-*-H-...-E*, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
315	65	234	9	22
315	100	360	20	34
315	135	486	37	43
315	170	612	59	50
400	95	342	7	18
400	170	612	22	32
400	250	900	49	42
400	325	1170	82	50
630	235	846	8	23
630	365	1314	20	35
630	495	1782	38	44
630	625	2250	60	50
800	320	1152	8	24
800	470	1692	18	35
800	620	2232	31	43
800	765	2754	47	50

VDL-*-V-...-M, VDL-*-V-...-E*, VDL-*-F-M, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
315	65	234	6	19
315	115	414	19	33
315	165	594	39	43
315	215	774	66	50
400	95	342	5	15
400	180	648	19	31
400	265	954	41	41
400	350	1260	71	50
630	235	846	6	16
630	405	1458	18	32
630	575	2070	36	43
630	730	2628	58	50
800	320	1152	7	20
800	500	1800	17	33
800	680	2448	32	43
800	865	3114	52	50

VDL-*-H-...-X, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
315	65	234	7	16
315	115	414	23	32
315	165	594	48	43
315	210	756	78	50
400	95	342	7	14
400	180	648	26	32
400	265	954	57	44
400	325	1170	86	50
630	235	846	8	15
630	405	1458	23	33
630	575	2070	47	44
630	685	2466	67	50
800	320	1152	7	19
800	500	1800	17	32
800	930	3348	58	50
800	920	3312	57	50

VDL-*-V-...-X, VDL-*-F-X, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
315	65	234	6	17
315	115	414	19	32
315	165	594	39	41
315	225	810	72	50
400	95	342	5	13
400	185	666	20	30
400	275	990	45	41
400	365	1314	79	50
630	235	846	5	15
630	440	1584	17	31
630	650	2700	49	47
630	840	3024	62	50
800	320	1152	4	22
800	570	2052	14	35
800	820	2952	28	43
800	1080	3888	49	50

Ceiling swirl diffuser with circular diffuser face for high rooms in comfort and industrial zones. For supply air only. With fixed air control blades for horizontal supply air discharge and with adjustable blades for air discharge from horizontal (0°) to vertical (90°). Horizontal air discharge with high induction. For freely suspended installation and for suspended ceilings.

Ready-to-install component which consists of the diffuser face, blades, duct collar or plenum box with side entry or top entry spigot, and suspension holes. Removable or non-removable diffuser face.

The removable diffuser face with quick-release fasteners.

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

For high rooms, with adjustable air control blades
Diffuser face with aerodynamically optimised contours
The air pattern can be adjusted manually or with an actuator
Horizontal or vertical duct connection

Materials and surfaces

Blades, casing, extended border, plenum box or spigot and cross bar made of galvanised sheet steel
Quick release fastener made of nylon and rubber IR/BR
Seal made of rubber NR
Spacers made of HD-PE
Diffuser face and decorative cap made of aluminium
Protective cage made of steel mesh
Blades, extended border, diffuser face and decorative cap powder-coated RAL 9010, pure white
P1: Powder-coated, RAL CLASSIC colour

Technical data

Nominal sizes: 315, 400, 630, 800 mm
Minimum volume flow rate: 65 – 320 l/s or 234 – 1152 m³/h
Maximum volume flow rate, with L_WA ≅ 50 dB(A): 170 – 1080 l/s or 612 – 3888 m³/h
Supply air to room air temperature difference: –12 to +15 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.

Variants, Accessories, Dimensions and weight, Product details

VDL-A

VDL-A

Diffuser face VDL-A

Diffuser face without flange

Nominal sizes

315, 400, 630, 800

VDL-B

Diffuser face VDL-B

Diffuser face with flange

Nominal sizes

315, 400, 630, 800

VDL-*-F-X

Variant

Diffuser face with fixed air control blades

Nominal sizes

315, 400, 630, 800

Parts and characteristics

Circular duct collar for connection to a vertical duct

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

VDL-*-F-M

Variant

Diffuser face with alternately fixed and adjustable blades, for air discharge from horizontal (0°) to vertical (90°)

Nominal sizes

315, 400, 630, 800

Parts and characteristics

Circular duct collar for connection to a vertical duct

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

VDL-*-H-N

Variant

With plenum box for horizontal duct connection
Non-removable diffuser face

Nominal sizes

315, 400, 630, 800

Parts and characteristics

Plenum box for horizontal duct connection
Lip seal (optional)

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180
Spigot with groove for lip seal (if accessory lip seal has been ordered)

VDL-*-H-D

Variant

With plenum box for horizontal duct connection
Removable diffuser face
Actuator for blade adjustment, optional

Nominal sizes

315, 400, 630, 800

Parts and characteristics

Plenum box for horizontal duct connection
Lip seal (optional)

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180
Spigot with groove for lip seal (if accessory lip seal has been ordered)

VDL-*-V-N

Variant

With plenum box for vertical duct connection
Non-removable diffuser face

Nominal sizes

630, 800

Parts and characteristics

Plenum box for vertical duct connection
Lip seal (optional)

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180
Spigot with groove for lip seal (if accessory lip seal has been ordered)

VDL-*-V-D

Variant

With plenum box for vertical duct connection
Removable diffuser face
Actuator for blade adjustment, optional

Nominal sizes

315, 400, 630, 800

Parts and characteristics

Plenum box for vertical duct connection
Lip seal (optional)

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180
Spigot with groove for lip seal (if accessory lip seal has been ordered)

VDL-...-X, fixed

Variant	Nominal size				Variant
Variant	mm				①	②	③
Variant	315	400	630	800	-L-	-K-	-S-
VDL-A-F-X	+	+	+	+	–	–	–
*VDL-A-H--D-X**	+	+	+	+	+	–	–
*VDL-A-H--N-X**	+	+	+	+	+	–	–
*VDL-B-F--X**	+	+	+	+	–	+	+
*VDL-B-H--D--X*	+	+	+	+	+	+	+
*VDL-B-H--N--X*	+	+	+	+	+	+	+

① Lip seal

② Extended border

③ Protective cage

+ Possible

– Not possible

VDL-...-M, manually adjustable

Variant	Nominal size				Variant
Variant	mm				①	②	③
Variant	315	400	630	800	-L-	-K-	-S-
VDL-A-F-M	+	+	–	–	–	–	–
*VDL-A-V--D-M**	+	+	+	+	+	–	–
*VDL-A-V--N-M**	–	–	+	+	+	–	–
*VDL-A-H--D-M**	+	+	+	+	+	–	–
*VDL-A-H--N-M**	+	+	+	+	+	–	–
*VDL-B-F--M**	+	+	–	–	–	+	+
*VDL-B-V--D--M*	+	+	+	+	+	+	+
*VDL-B-V--N--M*	–	–	+	+	+	+	+
*VDL-B-H--D--M*	+	+	+	+	+	+	+
*VDL-B-H--N--M*	+	+	+	+	+	+	+

① Lip seal

② Extended border

③ Protective cage

+ Possible

– Not possible

VDL-...-E*, with actuator

Variant	Nominal size				Variant
Variant	mm				①	②	③
Variant	315	400	630	800	-L-	-K-	-S-
VDL-A-V--D-E	+	+	+	+	+	–	–
VDL-A-H--D-E	+	+	+	+	+	–	–
VDL-B-V--D--E*	+	+	+	+	+	+	+
VDL-B-H--D--E*	+	+	+	+	+	+	+

① Lip seal

② Extended border

③ Protective cage

+ Possible

– Not possible

Extended border

① Screw
② Fixing bar

VDL-B-...-K

Accessories

Extended border
Only for diffuser faces with flange (VDL-B)

Nominal sizes

315, 400, 630, 800

Parts and characteristics

An extended border supports the horizontal air discharge in cooling mode

VDL-B-...-S

Accessories

Protective cage
Only for diffuser faces with flange (VDL-B)

Nominal sizes

315, 400, 630, 800

Parts and characteristics

A protective cage protects the blades, e.g. in gymnasiums

VDL-A

VDL-A, VDL-B

Nominal size	VDL-A ØD₁ mm	VDL-B ØD₁ mm	H₁ mm	A_eff m²
315	464	494	42	0.022
400	567	597	45	0.031
630	871	901	51	0.077
800	1077	1107	55	0.106

VDL-*-F-X, VDL-*-F-M

Nominal size	H₁ mm	H₂ mm	ØD mm	m kg
315	42	103	313	3
400	45	112	398	4
630	51	153	628	11
800	55	174	798	19

VDL-*-F-M only nominal sizes 315, 400

VDL-*-H-N, VDL-*-H-D

Nominal size	H₁ mm	□Q₃ mm	H₃ mm	H₄ mm	ØD mm	A mm	C mm	m kg
315	42	435	432	282	248	290	65	11
400	45	500	536	368	313	351	65	16
630	51	750	761	468	398	526	65	35
800	55	1000	1026	568	498	741	65	59

Weights apply to the variant with actuator

VDL-*-V-N, VDL-*-V-D

Nominal size	VDL-*-V-N H₂ mm	VDL-*-V-D H₂ mm	H₁ mm	ØD mm	m kg
315		219	42	313	6
400		228	45	398	8
630	316	316	51	628	19
800	483	483	55	798	33

Weights apply to the variant with actuator

VDL-A

VDL

Nominal size	VDL-A ØD₁ mm	VDL-B ØD₁ mm	H₁ mm	A_eff m²
315	464	494	42	0.022
400	567	597	45	0.031
630	871	901	51	0.077
800	1077	1107	55	0.106

Installation examples, Installation details, Basic information and nomenclature

Freely suspended installation

Descărcări fişiere

informaţii produs

manuale de operare

Installation manual Ceiling diffusers

A00000054447 Installation manual 520 KB pdf

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Nominal sizes	315, 400, 630, 800 mm
Minimum volume flow rate	65 – 320 l/s or 234 – 1152 m³/h
Maximum volume flow rate, with L_WA ≅ 50 dB(A)	170 – 1080 l/s or 612 – 3888 m³/h
Supply air to room air temperature difference	–12 to +15 K

Construction style – diffuser face	With flange
Connection	Horizontal
Accessories 1	Lip seal
Diffuser face	Removable
Accessories 2	Protective cage
Adjustment	Electric actuator 24 V AC, 2 – 10 V DC
Nominal size	400 mm
Exposed surface of diffuser face	RAL 9016, traffic white, gloss level 70 %

For high rooms, with adjustable air control blades

Application

Description

Informaţii tehnice

FUNCTION, Technical data, Quick sizing, SPECIFICATION TEXT, ORDER CODE

Variants, Accessories, Dimensions and weight, Product details

Installation examples, Installation details, Basic information and nomenclature

Descărcări fişiere

informaţii produs

manuale de operare

Installation manual Ceiling diffusers

SERVICII TROX

NECESAR TEHNIC

STATISTICĂ ȘI ANALIZA SITE-ULUI

CONVENIENȚĂ ȘI PERSONALIZARE

PENTRU CEA MAI BUNĂ EXPERIENȚĂ TROX