DBW-M/SZ 643÷2256

Ducted Blower Fan Coil units

The Ducted Blower Fan Coil units of the DBW-M series are designed for installation in wide ambients as office buildings, hotels, restaurants, sport structures and shopping malls.
If connected to a system equipped with a water chiller, DBW-M generates cool or warm air silently and with instantaneous reaction. The range includes 27 models with cooling capacities from 16 to 83 TON, characterized by high static pressure (up to 1,4 inWG) to satisfy the needs of extra wide installations where external unit is far from the internal ambients or there are multiple ambients to be cooled simultaneously. Each model is available in versions with 3, 4 or 6 rows and features both horizontal and vertical air delivery.
A filter, which absorbs and retains dust in suspension, allows to keep the air quality at a suitable level and its easy removal enables continuous cleaning cycles to be carried out which are particularly important in order to guarantee suitable hygiene standards in highly frequented rooms.

The units feature 380V power supply and 60Hz frequency.

Versions

DBW-M/SZ - Horizontal unit rear inlet and horizontal delivery

Power range

56.0-293 kW
16.0-83.0 Ton

Features

Structure made of galvanized steel sheet with electrostatic powder paint complete with polyethylene for thermal and acoustical purpose.
G3 standard cleanable filter.
Radial fan type, statically and dynamically balanced to reduce vibration and noise to a minimum, directly coupled to 3-phase motors by V belt and variable pulley, installed on rubber shock absorbers.
Heat exchanger coils with copper pipes and aluminium fins with airvent and drain pan.
Units from size 643 to 646 come with standard horizontal air discharge and are convertible to vertical air discharge on site; sizes from 803 to 1204 come with standard vertical air discharge and are convertible to horizontal air discharge on site.
Standard water connections on left side based on air flow direction. On request units can be provided with water connections on right side.

Technical data

			643	644	646	803	804	806	903	904	906	1053	1054	1056	1203	1204	1206	1353	1354	1356	1503	1504	1506	1803	1804	1806	2253	2254	2256
Cooling	Total cooling capacity (1)	kW	56,4	75,9	91,3	68,4	92,8	112	77,5	104	126	98,0	115	139	108	127	156	124	146	178	135	159	194	165	194	237	203	240	293
	Sensible cooling capacity (1)	kW	40,5	51,1	60,2	49,9	63,0	75,0	55,8	70,9	83,4	69,0	80,0	94,7	76,8	89,4	106	87,5	101	121	95,0	111	133	116	135	160	143	165	199
	Water flow (1)	l/h	9701	13055	15704	11765	15962	19264	13330	17888	21672	16856	19780	23908	18576	21844	26832	21328	25112	30616	23220	27348	33368	28380	33368	40764	34916	41280	50396
	Pressure drops (1)	kPa	9	41	36	6	38	26	8	31	34	9	7	5	11	8	6	15	11	8	17	13	9	12	9	6	13	10	7
Rows		n°	3	4	6	3	4	6	3	4	6	3	4	6	3	4	6	3	4	6	3	4	6	3	4	6	3	4	6
Water connections		inch	1 ½"	1 ½"	2"	2"	2"	2 ½"	2"	2"	2 ½"	2 ½"	2 ½"	3"	2 ½"	2 ½"	3"	2 ½"	2 ½"	3"	2 ½"	2 ½"	3"	2 X 2"	2 X 2"	2 X 2"	2 X 2"	2 X 2"	2 X 2"
Air flow		m³/h	12220	12220	12220	15280	15280	15280	17320	17320	17320	20200	20200	20200	23090	23090	23090	25980	25980	25980	28860	28860	28860	34470	34470	34470	43120	43120	43120
Available static pressure		Pa	150	150	150	200	200	200	200	200	200	200	200	200	200	200	200	250	250	250	250	250	250	300	300	300	350	350	350
Electrical characteristics	Power supply	V/Ph/Hz	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60	380/3/60
Electrical characteristics	Max absorbed power	kW	3,6	3,6	3,6	4,7	4,7	4,7	4,7	4,7	6,4	6,4	6,4	8,6	6,4	6,4	6,4	8,6	8,6	8,6	12,4	12,4	12,4	12,4	12,4	12,4	16,8	16,8	16,8
Sound pressure	(2)	dB(A)	73	73	73	75	75	75	77	77	77	80	80	80	78	78	78	81	81	81	84	84	84	85	85	85	85	85	85
Weights	Transport weight	kg	176	182	227	242	252	285	256	272	305	294	322	368	310	332	420	317	341	442	330	352	400	982	1001	1098	1063	1086	1236
Weights	Operating weight	kg	174	180	225	240	250	283	254	270	303	292	320	366	308	330	418	315	339	440	328	350	398	980	999	1096	1061	1084	1234

Dimensions

			643	644	646	803	804	806	903	904	906	1053	1054	1056	1203	1204	1206	1353	1354	1356	1503	1504	1506	1803	1804	1806	2253	2254	2256
L	STD	mm	1875	1875	1875	1915	1915	1915	1915	1915	1915	2170	2170	2170	2320	2320	2320	2320	2320	2320	2320	2320	2320	2320	2320	2320	2320	2320	2320
W	STD	mm	980	980	980	1175	1175	1175	1175	1175	1175	1175	1175	1175	1380	1380	1380	1380	1380	1380	1380	1380	1380	1830	1830	1830	1830	1830	1830
H	STD	mm	865	865	865	1235	1235	1235	1235	1235	1235	1490	1490	1490	1490	1490	1490	1490	1490	1490	1490	1490	1490	1915	1915	1915	2250	2250	2250

Notes

1 Ambient air temperature 27 °C d.b./19 °C w.b., water temperature 7/12 °C.
2 Sound pressure level measured at 1 m from the unit with reverberation time 0,5 s.