TWA/WP 212÷682 S/K/P/A
High efficiency air cooled dedicated Heat Pumps for medium temperature hot water production (up to 55°C) with axial fans, Scroll compressors and plate exchanger
The TWA/WP 212÷682 S/K/P/A reversible Heat Pumps, with R410A refrigerant, are characterized by high efficiency in cooling and heating.
The units are characterized by multi-compressor design on double cooling circuit, to reach high energy performances, reduction of current at start-up, elimination of inertial tanks and excellent silent functioning. The use of components built in large series makes them highly reliable and the management of a high number of compressors allows increased life span with reduction of machine stopping risks and easier maintenance operations.
Are available as option the new EC Inverter fans with high available static pressure and efficiency.
The units are designed for medium temperature hot water production (up to 55°C).
The units are compliant to the ErP Regulation.
On request, units can be supplied with R452B or R454B refrigerant.
Versions
- TWA/WP - Reversible Heat Pump
- TWA/WP/SSL - Super silenced reversible Heat Pump
Power range
- 227-762 kW
- 65.0-217 Ton
Features
- Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
- Scroll compressors with oil sight glass, internal overheat protection and crankcase heater.
- Axial fans directly coupled to an electric motor with external rotor.
- Condenser made of copper tubes and aluminium finned coils.
- Evaporator AISI 316 stainless steel braze welded plates type with two independent circuits on the refrigerant side and one on the water side, complete with water differential pressure switch. On the units it is always installed an antifreeze heater.
- Cooling circuit shut-off valve on liquid line in 302÷682 models.
- Electronic expansion valve.
- Electronic high and low pressure gauges.
- R410A refrigerant. On request R452B or R454B refrigerant.
- Electrical board includes: main switch with door safety interlock, fuses or magnetothermic switches, thermal protection relays for compressors and thermocontacts for fans.
- Functioning in heating mode with outside air temperature down to -15 °C.
- Microprocessor control and regulation system.
Accessories
Factory fitted accessories
- IM Automatic circuit breakers
- RE Adjustable minimum/maximum voltage and phase control relay
- SL Unit silencement
- RFM Cooling circuit shut-off valve on discharge line
- RFL Cooling circuit shut-off valve on liquid line
- CC Condensing control down to -20 °C
- BT Low water temperature kit
- EC EC Inverter fans
- ECH EC Inverter fans with high available static pressure
- DS Desuperheater
- RT Total heat recovery
- TX Coil with pre-coated fins
- EW External water connections
- PS Single circulating pump
- PSI Inverter single circulating pump
- PD Double circulating pump
- PDI Inverter double circulating pump
- GS Single circulating pump gasket for glycol >30%
- GD Double circulating pump gaskets for glycol >30%
- FN Antifreeze heater for pipes
- FG Antifreeze heater for single pump and pipes
- FM Antifreeze heater for double pump and pipes
- SS Soft start
- 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
- ISS SNMP protocol, Ethernet port
- IAV Remote set-point, 0-10V signal
- IAA Remote set-point, 4-20mA signal
- IAS Remote signal for second set-point activation
- IDL Demand limit from digital input
- MN High and low pressure gauges
Loose accessories
- CR Remote control panel
- RP Coils protection metallic guards
- AG Rubber shock absorbers
- AM Spring shock absorbers
Technical data
| 212 | 222 | 242 | 272 | 302 | 342 | 362 | 412 | 442 | 482 | 562 | 622 | 682 | |||
| Heating | Heating capacity (1) | kW | 227 | 256 | 272 | 294 | 342 | 369 | 389 | 420 | 476 | 532 | 566 | 677 | 762 |
| COP (1) | 3,44 | 3,41 | 3,36 | 3,46 | 3,35 | 3,48 | 3,47 | 3,36 | 3,38 | 3,39 | 3,35 | 3,35 | 3,37 | ||
| Heating (EN14511) | Heating capacity (1) | kW | 227 | 257 | 272 | 294 | 343 | 370 | 390 | 421 | 477 | 533 | 567 | 678 | 763 |
| COP (1) | 3,38 | 3,35 | 3,31 | 3,41 | 3,30 | 3,44 | 3,42 | 3,31 | 3,33 | 3,35 | 3,31 | 3,32 | 3,34 | ||
| SCOP (2) | 3,40 | 3,47 | 3,40 | 3,39 | 3,42 | 3,39 | 3,40 | 3,41 | 3,37 | 3,41 | 3,36 | 3,38 | 3,48 | ||
| Energy Efficiency (2) | % | 133 | 136 | 133 | 133 | 134 | 133 | 133 | 133 | 132 | 133 | 131 | 132 | 136 | |
| Cooling | Cooling capacity (3) | kW | 195 | 217 | 239 | 259 | 294 | 322 | 339 | 359 | 421 | 475 | 512 | 597 | 671 |
| EER (3) | 2,91 | 2,89 | 3,06 | 3,05 | 2,94 | 3,01 | 3,00 | 2,83 | 2,92 | 2,93 | 2,98 | 2,88 | 2,78 | ||
| Cooling (EN14511) | Cooling capacity (3) | kW | 195 | 217 | 239 | 259 | 294 | 322 | 339 | 359 | 421 | 475 | 512 | 597 | 671 |
| EER (3) | 2,87 | 2,85 | 3,02 | 3,01 | 2,90 | 2,98 | 2,97 | 2,79 | 2,89 | 2,91 | 2,95 | 2,86 | 2,76 | ||
| SEER (4) | 4,05 | 4,06 | 4,10 | 4,11 | 4,07 | 4,07 | 4,08 | 4,35 | 4,42 | 4,45 | 4,55 | 4,55 | 4,55 | ||
| Energy Efficiency (4) | % | 159 | 159 | 161 | 161 | 160 | 160 | 160 | 171 | 174 | 175 | 179 | 179 | 179 | |
| Compressor | Quantity | n° | 3+3 | 3+3 | 3+3 | 3+3 | 4+4 | 4+4 | 4+4 | 5+5 | 5+5 | 6+6 | 6+6 | 6+6 | 6+6 |
| Refrigerant circuits | n° | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| Capacity steps | n° | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 10 | 10 | 10 | 10 | |
| Evaporator | Water flow | l/s | 9,29 | 10,34 | 11,39 | 12,34 | 14,01 | 15,35 | 16,16 | 17,11 | 20,07 | 22,64 | 24,40 | 28,45 | 31,98 |
| Pressure drops | kPa | 44 | 55 | 42 | 38 | 49 | 37 | 41 | 46 | 46 | 32 | 37 | 33 | 30 | |
| Water connections | DN | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 150 | 150 | 150 | 150 | |
| Electrical characteristics | Power supply | V/Ph/Hz | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 | 400/3/50 |
| Max. running current | A | 158 | 171 | 187 | 202 | 231 | 247 | 262 | 283 | 329 | 366 | 397 | 462 | 520 | |
| Max. starting current | A | 281 | 304 | 354 | 370 | 363 | 414 | 429 | 415 | 497 | 533 | 564 | 650 | 707 | |
| Unit with pump | Pump available static pressure | kPa | 155 | 130 | 205 | 195 | 185 | 185 | 175 | 160 | 135 | 185 | 175 | 160 | 150 |
| Water connections | DN | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 150 | 150 | |
| Sound pressure | STD version (5) | dB(A) | 72 | 71 | 71 | 72 | 72 | 73 | 74 | 74 | 76 | 76 | 76 | 76 | 78 |
| With SL accessory (5) | dB(A) | 69 | 68 | 68 | 69 | 69 | 70 | 71 | 71 | 73 | 73 | 73 | 73 | 75 | |
| SSL version (5) | dB(A) | 65,0 | 65,0 | 65,0 | 66,0 | 66,0 | 67,0 | 67,0 | 67,0 | 68,0 | 69,0 | 70,0 | --- | --- | |
| Weights | Transport weight | kg | 1954 | 2291 | 2409 | 2437 | 2567 | 2820 | 2830 | 3019 | 3164 | 3702 | 3832 | 4660 | 4698 |
| Operating weight | kg | 1970 | 2310 | 2430 | 2460 | 2590 | 2850 | 2860 | 3050 | 3200 | 3750 | 3880 | 4720 | 4770 | |
Dimensions
| 212 | 222 | 242 | 272 | 302 | 342 | 362 | 412 | 442 | 482 | 562 | 622 | 682 | |||
| L | STD | mm | 2800 | 4000 | 4000 | 4000 | 4000 | 5000 | 5000 | 5000 | 5000 | 6200 | 6200 | 7200 | 7200 |
| SSL | mm | 4000 | 4000 | 5000 | 5000 | 5000 | 5000 | 5000 | 5000 | 6200 | 6200 | 7200 | --- | --- | |
| W | STD/SSL | mm | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 |
| H | STD/SSL | mm | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 |
Notes
- 1 Heated water from 40 to 45 °C, ambient air temperature 7 °C d.b./6 °C w.b.
- 2 Seasonal energy efficiency of heating at low temperature with average climatic conditions. According to EU Regulation n. 813/2013.
- 3 Chilled water from 12 to 7 °C, ambient air temperature 35 °C.
- 4 Seasonal energy efficiency of cooling at low temperature. According to EU Regulation n. 2016/2281.
- 5 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.
- N.B. (1) Weights of SSL version are specified on technical brochure.