DOP 0028÷0093

CHILLED WATER Dual coil UNITS WITH EC INVERTER PLUG-FAN

Dual Coil units with two independent cooling circuits, both with chilled water. The circuits are connected with two watercooled or aircooled liquid Chillers, with Free-Cooling technology too. The two circuits are separated with nonsimultaneous start-up, for back-up operation.
The DOP range is equipped with EC Inverter Plug-Fans; High Head fans are available as accessories.
The EC Inverter Plug-Fans allow fuel consumption at partial loads to be reduced by up to 61% compared to radial fans, modulating the power consumption according to the required thermal load.
The DOP range is available in two air discharge versions: DOPT with top air discharge and DOPB with bottom air discharge.
Unit supervision is developed by means of Modbus RTU protocol over RS485
serial interface as standard configuration. Other communication protocols and
interfaces are available as option.

Versions

DOPT/C - Top air discharge and frontal intake
DOPT/U - Top air discharge and frontal intake
DOPT/E - Top air discharge and frontal intake
DOPT/D - Top air discharge and frontal intake
DOPB/C - Bottom air discharge and upper intake
DOPB/U - Bottom air discharge and upper intake
DOPB/E - Bottom air discharge and upper intake
DOPB/D - Bottom air discharge and upper intake

Power range

29.0-93.0 kW
8.1-26.0 Ton

Accessories

Factory fitted accessories

AP High ESP fans
HT High water temperature operation 13/18°C
DPS Double power supply
AR Air renewal inlet with filter
AT Constant air flow regulation control
AT/P Constant available static pressure regulation control
PF Differential pressure switch filters control
ES Electrical heater with step regulation
WS2 Hot water coil with 3-Way valve
UMI Electrodes steam humidifier
SA Water alarm sensor
IST Modbus TCP/IP protocol, Ethernet port
ISB BACnet MSTP protocol, RS485 serial interface
ISBT BACnet IP protocol, Ethernet port
ISS SNMP protocol, Ethernet port
RE Adjustable minimum/maximum voltage and phase control relay

Loose accessories

MP Condensate drain pump
MP/U Condensate and humidifier drain pump
SB Fire sensor
SC Smoke sensor
CR Remote control panel
ZP Adjustable baseframe with shock absorbers (mod. B only)
ZA Adjustable baseframe with shock absorbers and deflector (mod. B only)
DL Bottom plenum for side connections (mod. T only)
BA Top vertical intake plenum with F7 efficiency filter (mod. B only)
BD Top frontal discharge plenum with grid (mod. T only)
DM Bottom frontal discharge plenum with grid (mod. B only)
BV Top discharge/intake plenum with damper

Technical data

			0028	0038	0056	0077	0093
PRIMARY COOLING circuit performances	Total cooling capacity (1)	kW	28,5	38,1	55,8	76,6	93,0
	Sensible cooling capacity (1)	kW	28,5	35,8	51,7	70,8	86,0
	SHR (1)	%	100%	94%	93%	92%	92%
	Water flow (1)	l/s	1,36	1,82	2,67	3,66	4,44
	Total pressure drops (1)	kPa	24	24	33	33	38
SECONDARY COOLING circuit performances	Total cooling capacity (1)	kW	28,5	38,1	55,8	76,6	93,0
	Sensible cooling capacity (1)	kW	28,5	35,8	51,7	70,8	86,0
	SHR (1)	%	100%	94%	93%	92%	92%
	Water flow (1)	l/s	1,36	1,82	2,67	3,66	4,44
	Total pressure drops (1)	kPa	24	24	33	33	38
Primary cooling circuit performances with HT accessory	Total cooling capacity (2)	kW	23,1	29,7	42,9	58,5	71,2
	Sensible cooling capacity (2)	kW	23,1	29,7	42,9	58,5	71,2
	SHR (2)	%	100%	100%	100%	100%	100%
	Water flow (2)	l/s	1,10	1,42	2,05	2,79	3,40
	Total pressure drops (2)	kPa	23	23	29	27	31
Secondary cooling circuit performances with HT accessory	Total cooling capacity (2)	kW	23,1	29,7	42,9	58,5	71,2
	Sensible cooling capacity (2)	kW	23,1	29,7	42,9	58,5	71,2
	SHR (2)	%	100%	100%	100%	100%	100%
	Water flow (2)	l/s	1,10	1,42	2,05	2,79	3,40
	Total pressure drops (2)	kPa	23	23	29	27	31
Fan section	Fans	n°	1	1	2	2	3
	Air flow (3)	m³/h	9700	9700	13800	18800	22800
	Max. available static pressure - STD fans	Pa	290	200	400	230	340
	Max. available static pressure - High ESP fans	Pa	480	400	550	400	510
	Filters	Tipo	M5	M5	M5	M5	M5
Electrical characteristics	Power supply	V/Ph/Hz	400/3+N/50	400/3+N/50	400/3+N/50	400/3+N/50	400/3+N/50
Sound pressure	DOPT - Top Air Discharge version (4)	dB(A)	60	61	58	64	61
Sound pressure	DOPB - Bottom Air Discharge version (4)	dB(A)	55	56	53	59	56
ACCESSORIES & ADDITIONAL SECTIONS	ACCESSORIES & ADDITIONAL SECTIONS
Electrical heating	Steps	n°	3	3	3	3	3
Electrical heating	Electrical power	kW	13,5	13,5	16,5	22,5	27,0
Hot water coil	Heating capacity (5)	kW	26,0	26,0	35,8	51,4	62,9
	Water flow (5)	l/s	1,24	1,24	1,71	2,46	3,01
	Total pressure drops (5)	kPa	40	40	44	48	48
Electrodes steam humidifier	Nominal steam production	kg/h	8	8	8	15	15
Electrodes steam humidifier	Nominal power	kW	6,0	6,0	6,0	11,3	11,3
Weights	Transport weight DOPT - Top Air Discharge	kg	473	499	562	752	891
	Transport weight DOPB - Bottom Air Discharge	kg	491	517	592	782	927
	Operating weight DOPT - Top Air Discharge	kg	453	477	540	719	858
	Operating weight DOPB - Bottom Air Discharge	kg	471	495	570	749	894

Dimensions

			0028	0038	0056	0077	0093
Dimensions	L	mm	1350	1350	1750	2225	2625
	W	mm	890	890	890	890	890
	H	mm	1980	1980	1980	1980	1980

Notes

1 Ambient air temperature 24°C - R.H. 50%, water temperature 7°C / 12°C.
2 Ambient air temperature 27°C - R.H. 50%, water temperature 13°C / 18°C.
3 Air flow calculated with Available Static Pressure of 20 Pa.
4 Sound pressure level calculated in free field conditions at 1,5 m height and 2 m distance. According to ISO 3744.
5 Ambient air temperature 20°C, water temperature 45°C / 40°C.