DCS

DCS-P-V

Perforated diffuser face

Diffuser face plate with perforated circular face style

Diffuser face plate with perforated circular face style and exposed discharge nozzle

Horizontal swirling air discharge

DCS

For horizontal swirling supply air discharge creating high induction levels, with fixed air control blades

Square ceiling swirl diffusers with perforated face plate, for comfort and industrial zones

Nominal sizes 600, 625
Volume flow rate range 4 – 260 l/s or 16 – 936 m³/h
Perforated diffuser face made of galvanised sheet steel, powder-coated
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems, particularly for T-bar ceilings
Swirl unit inside, 6 sizes, for the best swirl effect and high induction levels
Ideal for comfort zones

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
Plenum box with lining

Initialize order code

Application

Application

Type DCS ceiling swirl diffusers are preferably used as supply air diffusers for comfort and industrial zones
Perfect integration with suspended perforated sheet metal ceilings
Horizontal swirling supply air discharge for mixed flow ventilation
The efficient swirl creates high induction levels, thereby rapidly reducing the temperature difference and airflow velocity (supply air variant)
For variable and constant volume flows
For supply air to room air temperature differences –12 to +10 K
For room heights up to 4 m (lower edge of suspended ceiling)
For T-bar ceilings

Special characteristics

Horizontal air discharge creating high induction levels
Design variants with perforated square or circular diffuser face style
For T-bar ceilings
Horizontal or vertical duct connection

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Description

Variants

DCS-P: Perforated diffuser face
DCS-N: Unperforated diffuser face
DCS-C: Diffuser face with exposed discharge nozzle

Installation type

V: Exposed T-bars
H: Concealed T-bars

Connection

K: Vertical duct connection, with duct collar
US: Vertical duct connection, with transition piece
A: Horizontal duct connection, with plenum box
AK: Horizontal duct connection, with plenum box and lining

Parts and characteristics

Square diffuser face
V: For T-bar ceilings with exposed T-bars
H: For T-bar ceilings with concealed T-bars
Swirl unit with radially arranged fixed air control blades

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

Materials and surfaces

Diffuser face, discharge nozzle, swirl unit, duct collar and plenum box made of galvanised sheet steel
Transition piece made of aluminium
Plenum box lining is mineral wool
Swirl unit and discharge nozzle dip coated RAL 9005, jet black
Diffuser face and discharge nozzle powder-coated RAL 9010, pure white
P1: Powder-coated, RAL CLASSIC colour

Mineral wool

To EN 13501, fire rating class A1, non-combustible
RAL quality mark RAL-GZ 388
Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
Inert to fungal and bacterial growth

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 the DCS, with perforated diffuser face and plenum box for horizontal duct connection

① Diffuser face
② Discharge nozzle
③ Blade
④ Plenum box
⑤ Suspension lug
⑥ Spigot

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 DCS ceiling swirl diffusers have fixed blades. The swirl unit required for the swirling air discharge is situated inside the plenum box, concealed by a perforated plate, and hence not visible from the room. Air discharge is horizontal omni directional. The supply air to room air temperature difference may range from –12 to +10 K.

To give rooms an aesthetic, uniform look, Type DCS diffusers may also be used for extract air.

Nominal sizes – diffuser face	593, 598, 618, 623 mm
Nominal sizes – swirl unit	125, 160, 200, 250, 315, 400 mm
Minimum volume flow rate, with Δt_Z = –6 K	4 – 36 l/s or 16 – 128 m³/h
Maximum volume flow rate, with L_WA ≅ 50 dB(A)	37 – 260 l/s or 132 – 936 m³/h
Supply air to room air temperature difference	–12 to +10 K

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

The minimum volume flow rates apply to a supply air to room air temperature difference of –6 K.

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.

DCS-P-K, DCS-N-K, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
125	4	16	1	<15
125	20	72	17	28
125	30	108	38	40
125	40	146	69	50
160	6	23	1	<15
160	30	108	16	26
160	50	180	43	39
160	70	252	85	50
200	9	32	1	<15
200	35	126	8	21
200	65	234	28	37
200	98	354	65	50
250	14	50	1	<15
250	55	198	10	26
250	95	342	29	39
250	135	486	59	50
315	25	90	1	<15
315	85	306	9	27
315	145	522	27	40
315	200	720	52	50
400	36	128	1	<15
400	110	396	9	26
400	185	666	27	39
400	260	936	53	50

DCS-C-K, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
125	4	16	1	<15
125	15	54	16	21
125	30	108	64	43
125	40	128	89	50
160	6	23	1	<15
160	20	72	9	21
160	40	144	37	39
160	60	216	83	51
200	9	32	1	<15
200	35	126	12	24
200	65	234	42	40
200	85	306	71	50
250	14	50	1	2
250	50	180	10	26
250	85	306	29	39
250	115	414	53	50
315	25	90	1	3
315	70	252	10	24
315	120	432	28	38
315	170	612	56	50
400	36	128	1	14
400	100	360	9	30
400	165	594	25	40
400	225	810	46	50

DCS-P-US, DCS-N-US, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
125	4	16	1	<15
125	20	72	19	30
125	30	108	43	43
125	37	132	64	50
160	6	23	1	<15
160	30	108	15	29
160	50	180	42	43
160	63	225	66	50
200	9	32	1	<15
200	35	126	17	22
200	65	234	57	38
200	93	334	116	50
250	14	50	1	<15
250	50	180	16	22
250	85	306	47	36
250	128	460	106	50
315	25	90	2	<15
315	85	306	21	28
315	145	522	60	42
315	180	648	92	50
400	36	128	2	<15
400	110	396	16	26
400	180	648	42	39
400	250	900	81	50

DCS-C-US, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
125	4	16	2	<15
125	15	54	19	27
125	20	72	33	36
125	30	108	74	50
160	6	23	1	<15
160	20	72	10	20
160	40	144	39	40
160	55	198	74	51
200	9	32	1	<15
200	35	126	22	25
200	60	216	64	40
200	80	288	114	50
250	14	50	1	<15
250	45	162	14	23
250	75	270	40	37
250	105	378	79	50
315	25	90	2	5
315	70	252	17	27
315	115	414	45	40
315	160	576	86	50
400	36	128	2	5
400	100	360	14	27
400	160	576	36	39
400	220	792	69	50

DCS-P-A, DCS-P-AK, DCS-N-A, DCS-N-AK, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
125	4	16	1	<15
125	15	54	13	21
125	25	90	36	35
125	39	140	88	51
160	6	23	1	<15
160	25	90	12	20
160	45	162	40	36
160	65	234	84	50
200	9	32	1	<15
200	35	126	11	22
200	65	234	39	39
200	90	324	76	50
250	14	50	1	<15
250	50	180	10	23
250	90	324	34	38
250	128	462	68	50
315	25	90	1	<15
315	80	288	12	25
315	130	468	31	38
315	185	666	62	50
400	36	128	1	<15
400	110	396	11	25
400	180	648	29	39
400	250	900	57	50

DCS-C-A, DCS-C-AK, sound power level and total differential pressure

Nominal size	V		Δp_t	L_WA
Nominal size	l/s	m³/h	Pa	dB(A)
125	4	16	2	<15
125	15	54	19	24
125	25	90	53	39
125	35	126	105	51
160	6	23	1	2
160	20	72	10	15
160	35	126	32	32
160	55	200	80	50
200	9	32	1	<15
200	35	126	15	24
200	65	234	53	43
200	80	288	80	50
250	14	50	1	<15
250	45	162	10	21
250	50	180	12	24
250	110	396	58	50
315	25	90	1	0
315	70	252	11	24
315	115	414	31	38
315	160	576	60	50
400	36	128	1	3
400	95	342	9	24
400	155	558	25	37
400	225	810	52	50

Design ceiling swirl diffusers with perforated square diffuser face, for comfort zones with particularly demanding requirements of aesthetics and design. For supply air or extract air. Excellent aerodynamic and acoustic function due to fixed air control blades for horizontal swirling air discharge, creating high levels of induction. For installation into all types of suspended ceilings.

Ready-to-install component which consists of the diffuser face, a top entry spigot or a plenum box with equalising element, a side entry spigot, and suspension lugs.

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

Horizontal air discharge creating high induction levels
Design variants with perforated square or circular diffuser face style
For T-bar ceilings
Horizontal or vertical duct connection

Materials and surfaces

Diffuser face, discharge nozzle, swirl unit, duct collar and plenum box made of galvanised sheet steel
Transition piece made of aluminium
Plenum box lining is mineral wool
Swirl unit and discharge nozzle dip coated RAL 9005, jet black
Diffuser face and discharge nozzle powder-coated RAL 9010, pure white
P1: Powder-coated, RAL CLASSIC colour

Mineral wool

To EN 13501, fire rating class A1, non-combustible
RAL quality mark RAL-GZ 388
Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
Inert to fungal and bacterial growth

Technical data

Nominal sizes – diffuser face: 593, 598, 618, 623 mm
Nominal sizes – swirl unit: 125, 160, 200, 250, 315, 400 mm
Minimum volume flow rate, with Δ_t = –6 K: 4 – 36 l/s or 16 – 128 m³/h
Maximum volume flow rate, with L_WA ≅ 50 dB(A): 37 – 260 l/s or 132 – 936 m³/h
Supply air to room air temperature difference: –12 to +10 K

Sizing data

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

Air-regenerated noise

L_WA _______________________ [dB(A)]

Type
DCS Swirl diffuser

Construction style
P       Diffuser face, perforated
N       Diffuser face, unperforated
C       Diffuser face with discharge nozzle

Installation type
V T-bars exposed (diffuser face rests on T-bars)
H T-bars concealed (diffuser face conceals T-bars)

Connection
K       Vertical, with duct collar
US       Vertical, with transition piece
A       Horizontal, with plenum box
AK       Horizontal, with plenum box and lining

Size of diffuser face plate
Installation type V
593
618
Installation type H
598
623

Nominal size [mm]
125
160
200
250
315
400

Exposed surface
No entry: 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: DCS–P–V–AK/593×315/P1-RAL 9016

Construction style	Perforated diffuser face
Installation type	Exposed T-bars
Connection	Plenum box with lining, horizontal connection
Size of diffuser face plate	593 mm
Nominal size	315 mm
Exposed surface	RAL 9016, traffic white, gloss level 70 %

Variants, Dimensions and weight, Product details

DCS-P

DCS-P-*-K

Variant

Ceiling swirl diffuser with perforated square diffuser face
Perforated diffuser face

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Parts and characteristics

Perforated square diffuser face
Circular duct collar for connection to a vertical duct

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

DCS-P-*-US

Variant

Ceiling swirl diffuser with perforated square diffuser face
Perforated diffuser face

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Parts and characteristics

Perforated square diffuser face
Transition piece for connection to a vertical duct

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

DCS-P-*-A

Variant

Ceiling swirl diffuser with perforated square diffuser face
With plenum box for horizontal duct connection

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Parts and characteristics

Perforated square diffuser face
Plenum box for horizontal duct connection
Plenum box with lining, optional

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

DCS-N-*-K

Variant

Ceiling swirl diffuser with square diffuser face
Diffuser face plate with perforated circular face style

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Parts and characteristics

Square diffuser face
Circular duct collar for connection to a vertical duct

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

DCS-N-*-US

Variant

Ceiling swirl diffuser with square diffuser face
DCS-N: Unperforated diffuser face

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Parts and characteristics

Square diffuser face
Transition piece for connection to a vertical duct

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

DCS-N-*-A

Variant

Ceiling swirl diffuser with square diffuser face
DCS-N: Unperforated diffuser face
With plenum box for horizontal duct connection

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Parts and characteristics

Square diffuser face
Plenum box for horizontal duct connection
Plenum box with lining, optional

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

DCS-C-*-K

Variant

Ceiling swirl diffuser with square diffuser face
Unperforated diffuser face with visible discharge nozzle

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Parts and characteristics

Square diffuser face
Circular duct collar for connection to a vertical duct

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

DCS-C-*-US

Variant

Ceiling swirl diffuser with square diffuser face
Unperforated diffuser face with visible discharge nozzle

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Parts and characteristics

Square diffuser face
Transition piece for connection to a vertical duct

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

DCS-C-*-A

Variant

Ceiling swirl diffuser with square diffuser face
Unperforated diffuser face with visible discharge nozzle
With plenum box for horizontal duct connection

Nominal sizes

Diffuser face: 593, 598, 618, 623
Swirl diffuser: 125, 160, 200, 250, 315, 400

Parts and characteristics

Square diffuser face
Plenum box for horizontal duct connection
Plenum box with lining, optional

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

DCS-P-V-K

DCS-P-*-K

Nominal size	H-*/598 × ... □Q₁ mm	H-*/623 × ... □Q₁ mm	V-*/593 × ... □Q₁ mm	V-*/618 × ... □Q₁ mm	H₁ mm	H₂ mm	ØD mm	m kg
... × 125	598	623	593	618	8	69	123	1.9
... × 160	598	623	593	618	8	69	158	2.2
... × 200	598	623	593	618	8	69	198	2.3
... × 250	598	623	593	618	8	69	248	2.5
... × 315	598	623	593	618	8	79	313	3.1
... × 400	598	623	593	618	8	79	398	3.8

DCS-P-*-US

Nominal size	H-*/598 × ... □Q₁ mm	H-*/623 × ... □Q₁ mm	V-*/593 × ... □Q₁ mm	V-*/618 × ... □Q₁ mm	H₁ mm	H₂ mm	ØD₃ mm	ØD mm	C mm	m kg
... × 125	598	623	593	618	8	146	123	98	40	2.0
... × 160	598	623	593	618	8	151	158	123	40	2.3
... × 200	598	623	593	618	8	154	198	158	40	2.5
... × 250	598	623	593	618	8	159	248	198	40	2.8
... × 315	598	623	593	618	8	176	313	248	40	3.5
... × 400	598	623	593	618	8	186	398	313	40	4.3

DCS-P-*-A

Nominal size	H-*/598 × ... □Q₁ mm	H-*/623 × ... □Q₁ mm	V-*/593 × ... □Q₁ mm	V-*/618 × ... □Q₁ mm	H₁ mm	H₃ mm	□Q₃ mm	ØD₄ mm	E mm	ØD mm	A mm	C mm	m kg
... × 125	598	623	593	618	8	225	180	123	69	98	136	49	3.4
... × 160	598	623	593	618	8	249	215	158	69	123	149	49	4.2
... × 200	598	623	593	618	8	284	255	198	69	158	167	49	5.0
... × 250	598	623	593	618	8	324	305	248	69	198	187	49	6.4
... × 315	598	623	593	618	8	384	370	313	79	248	222	49	8.5
... × 400	598	623	593	618	8	440	454	398	79	313	257	49	11.8

DCS-N-*-K

Nominal size	H-*/598 × ... □Q₁ mm	H-*/623 × ... □Q₁ mm	V-*/593 × ... □Q₁ mm	V-*/618 × ... □Q₁ mm	H₁ mm	H₂ mm	ØD mm	m kg
... × 125	598	623	593	618	8	69	123	3.5
... × 160	598	623	593	618	8	69	158	3.7
... × 200	598	623	593	618	8	69	198	3.8
... × 250	598	623	593	618	8	69	248	3.9
... × 315	598	623	593	618	8	79	313	4.4
... × 400	598	623	593	618	8	79	398	4.9

DCS-N-*-US

Nominal size	H-*/598 × ... □Q₁ mm	H-*/623 × ... □Q₁ mm	V-*/593 × ... □Q₁ mm	V-*/618 × ... □Q₁ mm	H₁ mm	H₂ mm	ØD₃ mm	ØD mm	C mm	m kg
... × 125	598	623	593	618	8	146	123	98	40	3.6
... × 160	598	623	593	618	8	151	158	123	40	3.9
... × 200	598	623	593	618	8	154	198	158	40	4.0
... × 250	598	623	593	618	8	159	248	198	40	4.2
... × 315	598	623	593	618	8	176	313	248	40	4.8
... × 400	598	623	593	618	8	186	398	313	40	5.4

DCS-N-*-A

Nominal size	H-*/598 × ... □Q₁ mm	H-*/623 × ... □Q₁ mm	V-*/593 × ... □Q₁ mm	V-*/618 × ... □Q₁ mm	H₁ mm	H₃ mm	□Q₃ mm	ØD₄ mm	E mm	ØD mm	A mm	C mm	m kg
... × 125	598	623	593	618	8	225	180	123	69	98	136	49	4.9
... × 160	598	623	593	618	8	249	215	158	69	123	149	49	5.7
... × 200	598	623	593	618	8	284	255	198	69	158	167	49	6.4
... × 250	598	623	593	618	8	324	305	248	69	198	187	49	7.7
... × 315	598	623	593	618	8	384	370	313	79	248	222	49	9.8
... × 400	598	623	593	618	8	440	454	398	79	313	257	49	12.9

DCS-C-*-K

Nominal size	H-*/598 × ... □Q₁ mm	H-*/623 × ... □Q₁ mm	V-*/593 × ... □Q₁ mm	V-*/618 × ... □Q₁ mm	H₁ mm	H₂ mm	ØD mm	m kg
... × 125	598	623	593	618	8	69	123	3.4
... × 160	598	623	593	618	8	69	158	3.6
... × 200	598	623	593	618	8	69	198	3.6
... × 250	598	623	593	618	8	69	248	3.8
... × 315	598	623	593	618	8	79	313	4.3
... × 400	598	623	593	618	8	79	398	4.7

DCS-C-*-US

Nominal size	H-*/598 × ... □Q₁ mm	H-*/623 × ... □Q₁ mm	V-*/593 × ... □Q₁ mm	V-*/618 × ... □Q₁ mm	H₁ mm	H₂ mm	ØD₃ mm	ØD mm	C mm	m kg
... × 125	598	623	593	618	8	146	123	98	40	3.5
... × 160	598	623	593	618	8	151	158	123	40	3.8
... × 200	598	623	593	618	8	154	198	158	40	3.9
... × 250	598	623	593	618	8	159	248	198	40	4.1
... × 315	598	623	593	618	8	176	313	248	40	4.6
... × 400	598	623	593	618	8	186	398	313	40	5.2

DCS-C-*-A

Nominal size	H-*/598 × ... □Q₁ mm	H-*/623 × ... □Q₁ mm	V-*/593 × ... □Q₁ mm	V-*/618 × ... □Q₁ mm	H₁ mm	H₃ mm	□Q₃ mm	ØD₄ mm	E mm	ØD mm	A mm	C mm	m kg
... × 125	598	623	593	618	8	225	180	123	69	98	136	49	4.8
... × 160	598	623	593	618	8	249	215	158	69	123	149	49	5.6
... × 200	598	623	593	618	8	284	255	198	69	158	167	49	6.3
... × 250	598	623	593	618	8	324	305	248	69	198	187	49	7.7
... × 315	598	623	593	618	8	384	370	313	79	248	222	49	9.7
... × 400	598	623	593	618	8	440	454	398	79	313	257	49	12.7

Diffuser face DCS-P

DCS-P

Nominal size	A_eff m²
... × 125	0.0034
... × 160	0.0060
... × 200	0.0092
... × 250	0.0150
... × 315	0.0265
... × 400	0.0355

□Q1: 593, 598, 618, 623

DCS-N

Nominal size	ØD₂ mm	A_eff m²
... × 125	175	0.0034
... × 160	210	0.0060
... × 200	250	0.0092
... × 250	300	0.0150
... × 315	385	0.0265
... × 400	470	0.0355

□Q1: 593, 598, 618, 623

DCS-C

Nominal size	ØD₂ mm	A_eff m²
... × 125	200	0.0034
... × 160	250	0.0060
... × 200	300	0.0092
... × 250	350	0.0150
... × 315	450	0.0265
... × 400	580	0.0355

□Q1: 593, 598, 618, 623

Installation examples, Installation details, Basic information and nomenclature

Installation in T-bar ceilings 00104200_0.

Installation with the T-bars exposed

Horizontal duct connection
Four suspension lugs
Diffuser face rests on T-bars

Variant DCS-*-V-A, DCS-*-V-AK-Uni

Installation and commissioning

Preferably for rooms with a clear height up to 4.0 m
Flush ceiling installation
Horizontal or vertical duct connection

Installation information

Flush ceiling installation
Installation and making connections to be performed by others

These are only schematic diagrams to illustrate installation details.

Principal dimensions

ØD [mm]

Outer diameter of the spigot

ØD₁ [mm]

Outer diameter of a circular diffuser face

ØD₂ [mm]

Diameter of a circular diffuser face style

ØD₃ [mm]

Diameter of a circular plenum box

□Q₁ [mm]

Outer diameter of a square diffuser face

□Q₂ [mm]

Dimensions of a square diffuser face style

□Q₃ [mm]

Dimensions of a square plenum box

H₁ [mm]

Distance (height) from the lower edge of the suspended ceiling to the lower edge of the diffuser face

H₂ [mm]

Height of a ceiling diffuser, from the lower edge of the suspended ceiling to the upper edge of the spigot

H₃ [mm]

Height of a ceiling diffuser with plenum box, from the lower edge of the suspended ceiling to the upper edge of the plenum box or of the spigot

A [mm]

Position of the spigot, defined by the distance of the spigot centre line to the lower edge of the suspended ceiling

C [mm]

Length of the spigot

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, i.e. supply air temperature minus room temperature

Δp_t [Pa]

Total differential pressure

A_eff [m²]

Effective air discharge area

All sound power levels are based on 1 pW.

Downloads

product information

Product data sheet Type DCS

Product data sheet 2,7 MB pdf
Product data sheet Type DCS

Product data sheet 4,8 MB pdf

certificates

Declaration of hygiene conformity Type DCS

DCS_HC_2024_05_DE_en Hygiene certificate 1,8 MB pdf
Non-CE Manufacturer's statement DCS

DCS_NotCE_2022_02_08_14_22_45_DE_en Certificate 2,5 MB pdf

operation manuals

Installation manual Air terminal devices

IM_2018_06_A00000054447 Installation manual 1,2 MB pdf

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For horizontal swirling supply air discharge creating high induction levels, with fixed air control blades

Application

Description

Technical information

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

Variants, Dimensions and weight, Product details

Installation examples, Installation details, Basic information and nomenclature

Downloads

product information

Product data sheet Type DCS

Product data sheet Type DCS

certificates

Declaration of hygiene conformity Type DCS

Non-CE Manufacturer's statement DCS

operation manuals

Installation manual Air terminal devices

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