DOP/SZ 0025÷0092
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 water cooled or air cooled 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 centrifugal 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/SZ - Top air discharge and frontal intake
- DOPB/SZ - Bottom air discharge and upper intake
Power range
- 25.0-91.0 kW
- 7.1-26.0 Ton
Accessories
Factory fitted accessories
- AP High ESP fans
- HT High water temperature operation 13/18°C
- CM Scheduler
- DPS Double power supply
- EC EC Inverter fans
- AR Air renewal inlet with filter
- AT Constant air flow regulation control
- AT/P Constant available static pressure regulation control
- PA Differential pressure switch fans 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
- WM Web Monitoring - Wireless remote monitoring (GPRS/EDGE/4G/TCP-IP)
- SA Water alarm sensor
- IS Modbus RTU protocol, RS485 serial interface
- IST Modbus TCP/IP protocol, Ethernet port
- ISB BACnet MSTP protocol, RS485 serial interface
- ISBT BACnet IP protocol, Ethernet port
- ISB1 BACnet MSTP protocol, RS485 serial interface, BTL certified.
- ISBT1 BACnet IP protocol, Ethernet port, BTL certified.
- 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
- BF Direct Free-Cooling plenum for units with bottom air discharge
- DF Direct Free-Cooling plenum for units with top air discharge
Technical data
| 0025 | 0033 | 0050 | 0070 | 0092 | |||
| PRIMARY COOLING circuit performances | Total cooling capacity (1) | kW | 24,8 | 33,1 | 50,1 | 69,9 | 91,4 |
| Sensible cooling capacity (1) | kW | 24,4 | 32,2 | 48,8 | 67,2 | 87,1 | |
| SHR (1) | % | 98% | 97% | 97% | 96% | 95% | |
| Water flow (1) | l/s | 1,18 | 1,58 | 2,39 | 3,33 | 4,36 | |
| Total pressure drops (1) | kPa | 24 | 22 | 31 | 32 | 36 | |
| SECONDARY COOLING circuit performances | Total cooling capacity (1) | kW | 24,8 | 33,1 | 50,1 | 69,9 | 91,4 |
| Sensible cooling capacity (1) | kW | 24,4 | 32,2 | 48,8 | 67,2 | 87,1 | |
| SHR (1) | % | 98% | 97% | 97% | 96% | 95% | |
| Water flow (1) | l/s | 1,18 | 1,58 | 2,39 | 3,33 | 4,36 | |
| Total pressure drops (1) | kPa | 24 | 22 | 31 | 32 | 36 | |
| Fan section | Fans | N° | 1 | 1 | 2 | 2 | 3 |
| Air flow (2) | m³/h | 9700 | 9700 | 13800 | 18800 | 22800 | |
| Max. available static pressure - STD fans | PA | 410 | 375 | 350 | 395 | 400 | |
| Max. available static pressure - High ESP fans | PA | 535 | 495 | 505 | 500 | 515 | |
| Filters | Tipo | G4 | G4 | G4 | G4 | G4 | |
| Electrical characteristics | Power supply | V/Ph/Hz | 380/3+N/60 | 380/3+N/60 | 380/3+N/60 | 380/3+N/60 | 380/3+N/60 |
| Sound pressure | DOPT - Top Air Discharge version (3) | dB(A) | 60 | 61 | 58 | 64 | 61 |
| DOPB - Bottom Air Discharge version (3) | dB(A) | 55 | 56 | 53 | 59 | 56 | |
| ACCESSORIES & ADDITIONAL SECTIONS | ACCESSORIES & ADDITIONAL SECTIONS | ||||||
| Electrical heating | Steps | N° | 3 | 3 | 3 | 3 | 3 |
| Electrical power | kW | 13,5 | 13,5 | 16,5 | 22,5 | 27,0 | |
| Hot water coil | Heating capacity (4) | kW | 18,3 | 20,1 | 28,4 | 39,4 | 50,5 |
| Water flow (4) | l/s | 0,89 | 0,97 | 1,37 | 1,90 | 2,44 | |
| Total pressure drops (4) | kPa | 40 | 40 | 44 | 48 | 48 | |
| Electrodes steam humidifier | Nominal steam production | kg/h | 8 | 8 | 8 | 15 | 15 |
| Nominal power | kW | 6,0 | 6,0 | 6,0 | 11,3 | 11,3 | |
Dimensions
| 0025 | 0033 | 0050 | 0070 | 0092 | |||
| Dimensions | L | mm | 1350 | 1350 | 1750 | 2225 | 2625 |
| W | mm | 890 | 890 | 890 | 890 | 890 | |
| H | mm | 1980 | 1980 | 1980 | 1980 | 1980 | |
| 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 | |
Notes
- 1 Ambient air temperature 24°C - R.H. 50%, water temperature 7°C / 12°C.
- 2 Air flow calculated with Available Static Pressure of 20 Pa (0,08 in WG).
- 3 Sound pressure level calculated in free field conditions at 1,5 m height and 2 m distance. According to ISO 3744.
- 4 Ambient air temperature 24°C, water temperature 45°C/40°C (post-heating operation).