BID

BID with AFN

Tested to VDI 6022

Eurovent certification

Levelling foot

Spigot with lip seal

Under floor induction unit in nominal lengths of 900 to 1500 mm, with horizontal heat exchanger

Underfloor induction unit with 2-pipe or 4-pipe heat exchanger for installation in raised floors

High heating and cooling capacity with a low conditioned primary air volume flow rate and low sound power level
High comfort levels due to low airflow velocity in the occupied zone
Four nozzle variants to optimise induction based on demand
Levelling feet
Continuous linear arrangement if required

Optional equipment and accessories

Control equipment
Choice of walk-on floor grille from our portfolio
Heat exchanger powder-coated black
Powder coating in many different colours, e.g. RAL CLASSIC

Initialize order code

Application

Application

Underfloor induction units of Type BID for installation in raised floors
Under floor induction units allow for floor-to-ceiling glazing
2-pipe or 4-pipe heat exchangers enable good comfort levels with a low conditioned primary air volume flow rate
Energy-efficient solution since water is used for heating and cooling

Special characteristics

Supply air discharge as inducing displacement flow
Horizontal heat exchanger as 2-pipe or 4-pipe system
4 levelling feet
Water connections at the narrow side, Ø12 mm Cu pipe, with plain tails or with G½" external thread, or with a G½" union nut; with flat seal

Nominal length

900, 1050, 1200, 1350, 1500 mm

Description

Variants

E: Single unit
B: Unit for continuous linear arrangement, i.e. open at the narrow sides

Heat exchanger

2: 2-pipe systems
4: 4-pipe systems

Nozzle variants

M: Medium
G: Large
U: Extra large
2U: Two nozzle rows, extra large nozzles

Construction

Galvanised
P1: Powder-coated RAL 9005, black, or in any other RAL colour, gloss level 70 %

Attachments

Water connection A1: G½" external thread and flat seal
Water connection A2: G½" union nut and flat seal

Useful additions

Connecting hoses
Control equipment consisting of a control panel including a controller with integral room temperature sensor; valves and valve actuators; and lockshields
Choice of floor grille from our portfolio
X-AIRCONTROL control system

Construction features

Spigot is suitable for circular ducts to EN 1506 or EN 13180
Four nozzle variants to optimise induction based on demand
Recess for floor grille
Vent valves on the heat exchanger

Materials and surfaces

Casing, nozzle plate and primary air plenum made of galvanised sheet steel
Heat exchanger with copper tubes and aluminium fins
Exposed surfaces either untreated or powder-coated in any RAL colour, e.g. RAL 9005, black
Heat exchanger also in black (RAL 9005)

Standards and guidelines

Products are certified by Eurovent (no. 09.12.432) and listed on the Eurovent website
Declaration of hygiene conformity to VDI 6022

Maintenance

No moving parts, hence low maintenance
The heat exchanger can be vacuumed with an industrial vacuum cleaner if necessary
VDI 6022, Part 1, applies (Hygiene requirements for ventilation and air-conditioning systems and units)

Technical information

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

Schematic illustration of BID

① Choice of floor grille from our portfolio
② Heat exchanger
③ Water connections, Ø12 x 1 mm Cu pipe, either with optional G½" external thread or with G½" union nut, flat seal
④ Casing
⑤ Levelling feet
⑥ Primary air plenum with integral nozzles
⑦ Primary air spigot

Functional description

Under floor induction units provide centrally conditioned primary air (fresh air) to the room and use heat exchangers for additional cooling and/or heating.

The primary air is discharged through nozzles (four variants are available).

As a result of this, secondary air (room air) is induced and passes through the heat exchanger.

Primary and secondary air mix and are then supplied to the room as an inducing displacement flow.

Nominal length	900, 1050, 1200, 1350, 1500 mm
Total length	1100 – 1849 mm
Height	191 mm
Width	403 mm
Primary air volume flow rate	4 – 40 l/s or 14 – 144 m³/h
Cooling capacity	Up to 1030 W
Heating capacity	Up to 1225 W
Max. operating pressure, water side	6 bar
Max. operating temperature, water side	75 °C

The quick sizing table contains operating points for defined reference units. For other operating points you may use the Easy Product Finder design software.

Quick sizing

L_N	①	Primary air				②		Cooling				Heating
L_N	①	V_Pr		Δp_t		L_WA		2-pipe and 4-pipe systems				4-pipe system
L_N	①	V_Pr		Ø98 mm	Ø123 mm	Ø98 mm	Ø123 mm	Q_tot	Q_WK	Δt_W	Δp_W	Q_WH = Q_tot	Δt_W	Δp_W
L_N	①	l/s	m³/h	Pa		dB(A)		W		K	kPa	W	K	kPa
900	M	4	14	52	52	<20	<20	229	181	1.4	3.1	244	4.2	0.24
900	M	6	22	117	117	<20	<20	303	230	1.8	3.1	311	5.4	0.24
900	M	9	32	264	264	27	23	400	291	2.3	3.1	395	6.8	0.24
900	G	8	29	58	58	<20	<20	324	228	1.8	3.1	308	5.3	0.24
900	G	12	43	130	129	23	<20	435	290	2.3	3.1	394	6.8	0.24
900	G	17	61	262	260	33	28	560	355	2.8	3.1	483	8.3	0.24
900	U	15	54	64	63	22	<20	457	276	2.2	3.1	374	6.4	0.24
900	U	20	72	114	111	30	23	570	328	2.6	3.1	446	7.7	0.24
900	U	30	108	256	250	42	35	778	417	3.3	3.1	569	9.8	0.24
900	2U	23	83	43	40	34	20	540	263	2.1	3.1	310	5.3	0.24
900	2U	32	115	84	79	43	29	708	322	2.5	3.1	382	6.6	0.24
900	2U	41	148	138	126	50	36	867	373	2.9	3.1	445	7.7	0.24
1050	M	4	14	38	38	<20	<20	238	190	1.5	3.5	256	4.4	0.26
1050	M	8	29	151	151	20	<20	381	285	2.2	3.5	387	6.6	0.26
1050	M	11	40	285	285	29	25	474	341	2.7	3.5	468	8.0	0.26
1050	G	10	36	66	65	<20	<20	393	272	2.1	3.5	375	6.4	0.26
1050	G	15	54	148	146	27	21	526	345	2.7	3.5	466	8.0	0.26
1050	G	20	72	263	260	35	30	646	405	3.2	3.5	533	9.5	0.26
1050	U	15	54	47	46	20	<20	468	287	2.2	3.5	391	6.7	0.26
1050	U	25	90	131	126	35	27	691	389	3.0	3.5	513	9.0	0.26
1050	U	35	126	256	248	44	36	893	471	3.7	3.5	647	11.1	0.26
1050	2U	27	97	45	40	41	23	627	302	2.4	3.5	357	6.1	0.26
1050	2U	37	133	85	76	50	32	811	364	2.8	3.5	435	7.5	0.26
1050	2U	47	169	137	122	57	39	985	419	3.3	3.5	503	8.6	0.26
1200	M	5	18	45	45	<20	<20	286	226	1.8	3.8	306	5.3	0.29
1200	M	9	32	145	144	21	<20	425	317	2.5	3.8	431	7.4	0.29
1200	M	12	43	257	256	29	25	516	372	2.9	3.8	506	8.7	0.29
1200	G	10	36	50	49	<20	<20	403	282	2.2	3.8	383	6.6	0.29
1200	G	15	54	113	111	24	<20	538	357	2.8	3.8	486	8.4	0.29
1200	G	24	86	288	284	38	32	752	463	3.6	3.8	634	10.9	0.29
1200	U	16	58	41	40	21	<20	501	308	2.4	3.8	419	7.2	0.29
1200	U	24	86	93	89	32	23	682	392	3.1	3.8	535	9.2	0.29
1200	U	36	130	208	200	44	35	927	493	3.9	3.8	676	11.6	0.29
1200	2U	31	112	48	41	49	27	713	339	2.7	3.8	403	6.9	0.29
1200	2U	39	140	76	65	55	34	858	388	3.0	3.8	464	8.0	0.29
1200	2U	47	169	110	95	61	39	999	432	3.4	3.8	519	8.9	0.29
1350	M	5	18	35	35	<20	<20	295	234	1.8	4.2	317	5.5	0.31
1350	M	10	36	140	139	21	<20	468	348	2.7	4.2	473	8.1	0.31
1350	M	13	47	237	236	29	24	558	401	3.1	4.2	547	9.4	0.31
1350	G	10	36	39	39	<20	<20	412	292	2.3	4.2	396	6.8	0.31
1350	G	15	54	89	87	22	<20	550	369	2.9	4.2	502	8.6	0.31
1350	G	25	90	246	242	37	30	789	487	3.8	4.2	668	11.5	0.31
1350	U	17	61	38	36	22	<20	535	330	2.6	4.2	448	7.7	0.31
1350	U	25	90	80	76	33	23	715	413	3.2	4.2	564	9.7	0.31
1350	U	40	144	205	194	46	36	1018	536	4.2	4.2	736	12.7	0.31
1350	2U	35	126	51	42	57	32	797	375	2.9	4.2	448	7.7	0.31
1350	2U	41	148	70	58	61	36	905	411	3.2	4.2	493	8.5	0.31
1350	2U	47	169	91	76	65	40	1011	444	3.5	4.2	535	9.2	0.31
1500	M	6	22	41	40	<20	<20	341	269	2.1	4.5	365	6.3	0.33
1500	M	11	40	137	136	21	<20	510	378	3.0	4.5	515	8.9	0.33
1500	M	15	54	254	252	30	26	626	445	3.5	4.5	609	10.5	0.33
1500	G	14	50	63	61	<20	<20	534	365	2.9	4.5	497	8.5	0.33
1500	G	22	79	154	151	31	25	733	468	3.7	4.5	640	11.0	0.33
1500	G	28	101	250	244	38	32	868	531	4.1	4.5	729	12.5	0.33
1500	U	20	72	42	40	27	<20	614	372	2.9	4.5	507	8.7	0.33
1500	U	33	119	115	107	41	29	893	495	3.9	4.5	678	11.7	0.33
1500	U	40	144	169	158	46	35	1031	549	4.3	4.5	754	13	0.33
1500	2U	39	140	54	44	65	36	880	409	3.2	4.5	491	8.4	0.33
1500	2U	43	155	66	53	68	39	951	433	3.4	4.5	520	9.0	0.33
1500	2U	47	169	78	63	70	41	1022	455	3.6	4.5	549	9.4	0.33

① Nozzle variant ② Air-regenerated noise

Reference values

Parameter	Cooling	Heating
t_R	26 °C	22 °C
t_AN	24. °C	22 °C
t_WV	16 °C	50 °C
V_W	110 l/h	50 l/h
Δt_pr = t_pr – t_R	–10 K	–
Δt_RWV = t_WV – t_R	–10 K	–28 K

Under floor induction units of Type BID, with one-way air discharge and high thermal output.

For installation in false floors. The units consist of a casing with primary air plenum, non-combustible nozzles, and a horizontal heat exchanger.

Four nozzle variants to optimise induction based on demand.

Special characteristics

Supply air discharge as inducing displacement flow
Horizontal heat exchanger as 2-pipe or 4-pipe system
4 levelling feet
Water connections at the narrow side, Ø12 mm Cu pipe, with plain tails or with G½" external thread, or with a G½" union nut; with flat seal

Materials and surfaces

Casing, nozzle plate and primary air plenum made of galvanised sheet steel
Heat exchanger with copper tubes and aluminium fins
Exposed surfaces either untreated or powder-coated in any RAL colour, e.g. RAL 9005, black
Heat exchanger also in black (RAL 9005)

Construction

Galvanised
P1: Powder-coated RAL 9005, black, or in any other RAL colour, gloss level 70 %

Technical data

Nominal length: 900, 1050, 1200, 1350, 1500 mm
Total length: 1100 – 1849 mm
Height: 191 mm
Width: 403 mm
Primary air volume flow rate: 4 – 40 l/s or 14 – 144 m³/h
Cooling capacity: up to 1030 W
Heating capacity: up to 1225 W
Max. operating pressure: 6 bar
Max. operating temperature: 75 °C

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

Type
BID Underfloor induction unit

Heat exchanger
2 2-pipe
4 4-pipe

Nozzle variants
M       Medium
G       Large
U       Extra large
2U       2 rows, extra large

Casing arrangement
R Right side
L Left side

Unit variant
E Single unit with perimeter frame
B Unit for continuous linear arrangement, i.e. open at the narrow sides

Total length (diffuser face) × nominal size [mm]
1100 – 1249 × 900
1250 – 1399 × 1050
1400 – 1549 × 1200
1550 – 1699 × 1350
1700 – 1849 × 1500

Spigot diameter [mm]
98
123

Water connection
       No entry: Ø12 mm pipe with plain tails
E00       Ø12 mm pipe with plain tails and vent valve
A00       With G½" external thread and flat seal
K00       With G½" external thread and flat seal and vent valve

Surface of casing
No entry: untreated, galvanised steel
P1 Powder-coated RAL 9005, black, gloss level 70 %

Surface of heat exchanger
No entry: heat exchanger untreated
G3 RAL 9005, black

Valves and actuators
No entry: none
VS With

BID–2–M–R–E/1350×1050×98

Heat exchanger	2-pipe
Nozzle variant	Medium
Casing arrangement	Right side
Unit variant	Single unit
Total length (diffuser face) × nominal length	1350 × 1050 mm
Spigot diameter	Ø98 mm
Water connections	Ø12 mm pipe, plain tails
Surface	Galvanised steel
Surface of heat exchanger	Untreated
Valves and actuators	Without

BID–4–U–L–E/1350×1050×123/A00/P1 RAL 9005/G3/VS

Heat exchanger	4-pipe
Nozzle variant	Extra large
Casing arrangement	Left side
Unit variant	Single unit
Total length (diffuser face) × nominal length	1350 × 1050 mm
Spigot diameter	Ø123 mm
Water connections	G½" external thread
Surface	P1 RAL 9005, black
Surface of heat exchanger	RAL 9005, black
Valves and actuators	With

Variants, Dimensions and weight

BID with ARR20 roll down grille

BID

① Grille

¹ØD: choice of Ø98 or Ø123
²Single unit with perimeter frame (shown: rotated by 90°)
³Unit for continuous linear arrangement, i.e. open at the narrow sides (shown: rotated by 90°)
*Lower edge of the casing to upper edge of the recess for the grille core

Dimensions [mm]

L₁	L_N	A	B
1100 – 1249	900	895	875
1250 – 1399	1050	1045	1025
1400 – 1549	1200	1195	1175
1550 – 1699	1350	1345	1325
1700 – 1849	1500	1495	1475

Weights

L_N	mm	900		1050		1200		1350		1500
L₁	mm	1100	1249	1250	1399	1400	1549	1550	1699	1700	1849
Unit	kg/piece	26	28	30	32	34	36	38	40	42	44
Contained water (max.)	kg	1.8	1.8	2.1	2.1	2.4	2.4	2.7	2.7	3	3

min L₁ = L_N + 200 mm

Installation details, Basic information and nomenclature

Installation example 00106331_0.

Installation and commissioning

Installation in false floors
Side entry primary air spigot
Total length 1100 – 1849 mm, width 403 mm, height 191 mm
Installation and connections to be performed by others; fixing, connection and sealing material to be provided by others
The induction unit has 4 levelling feet
Heat exchangers are fitted with water flow and water return connections at the narrow side

Schematic illustration of inducing displacement flow ventilation

L_N [mm]

Nominal length

L_WA [dB(A)]

Sound power level

t_Pr [°C]

Primary air temperature

t_WV [C°]

Water flow temperature – cooling/heating

t_R [C°]

Room temperature

t_R [C°]

Room temperature

t_AN [C°]

Secondary air intake temperature

Q_Pr [W]

Thermal output – primary air

Q_tot [W]

Thermal output – total

Q_W [W]

Thermal output – water side, cooling/heating

V_Pr [l/s]

Primary air volume flow rate

V_Pr [m³/h]

Primary air volume flow rate

V_W [l/h]

Water flow rate – cooling/heating

V [l/h]

Volume flow rate

∆t_W [K]

Temperature difference – water

∆p_W [kPa]

Pressure drop, water side

∆p_t [Pa]

Total pressure drop, air side

∆t_Pr = t_Pr - t_R [K]

Difference between primary air temperature and room temperature

∆t_RWV = t_WV - t_R [K]

Difference between water flow temperature and room temperature

∆t_Wm-Ref [K]

Difference between mean water temperature and reference temperature

L_N [mm]

Nominal length

Inducing displacement flow

The supply air is discharged near the external wall and with a medium velocity between 1.0 and 1.5 m/s. Due to the induction effect the supply air velocity is rapidly reduced such that, in cooling mode, the supply air displaces the room air over the entire floor area. The convection from people and other heat sources causes the fresh air from the pool to rise and create comfortable conditions in the occupied zone.

Heat exchanger

The maximum water-side operating pressure for all heat exchangers is 6 bar.

The maximum water flow temperature (heating circuit) for all heat exchangers is 75 °C; if flexible hoses are used, the water flow temperature should not exceed 55 °C. Units for other pressures and temperatures are available on request.

The water flow temperature (cooling circuit) should be at least 16 °C such that it does not permanently fall below the dew point. For units with a condensate drip tray the water flow temperature may be reduced to 15 °C.

Heat exchanger as 2-pipe system

Air-water systems with a 2-pipe heat exchanger may be used for either heating or cooling. In changeover mode it is possible to use all units within a water circuit exclusively for cooling in summer and exclusively for heating in winter.

Heat exchanger as 4-pipe system

Air-water systems with a 4-pipe heat exchanger may be used for both heating and cooling. Depending on the season, i.e. especially in spring and autumn, it may be possible that an office has to be heated in the morning and cooled in the afternoon.

Downloads

product information

Product Data Sheet Type BID

Product Data Sheet 1,2 MB pdf

certificates

Declaration of hygiene conformity Type BID

BID_HC_2024_05_DE_en Hygiene certificate 1,7 MB pdf
EUROVENT certificate

Eurovent_ChilledBeams_CE_2020_09_DE_en_fr Certificate 160 KB pdf
Eurovent Certita Certification Active and Passive Chilled Beams

Active-and-Passive-Chilled-Beams_CE_EUROVENT_09.12.432_2023_09_DE_en_fr Certificate 200 KB pdf
Non-CE Manufacturer's statement BID

BID_NotCE_2022_02_08_14_11_41_DE_en Certificate 1,8 MB pdf

operation manuals

Installation manual Air water systems

Luft-Wasser-Systeme_IM_CD10081_V1_2024_04_GB_en Installation manual 270 KB pdf

References

Installation example BID

ÖBB headquarters, Vienna

Project:
ÖBB headquarters, Vienna

Application:
Offices

Location:
Vienna, Austria

Building type:

New Building

Architect:
Zechner & Zechner ZT GmbH

TROX Products:
Air Diffusers: TR, TRS, FBA, VDW
Decentralised Ventilation: BID
External Louvres: JZ-AL-HL
Fire and Smoke Protection: FK-TA, FKRS-TA
Control units: RN, EN, TVR-Easy, TVJ-Easy, VFR, AK
Sound attenuators: CA, CS, CF, TX
Fans

Certificates:
ÖGNI Platin

Further information

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