Z-Power FREECOOLING
TFAVBZ - TFAVIZ - TFAVSZ 2420÷21100Air cooled water chillers in Freecooling mode with axial fans. Range with semi-hermetic screw compressors and R134a refrigerant gas.
Features
Tax incentives*
Key features
High efficiency
Standard electronic expansion valve
Integrated MASTER/SLAVE control
Extended operation limits
Description
Construction features
• Compressor: high energy efficiency semi-hermetic screw compressor, with star-delta limited start and complete with integral protection, casing heater and refrigerant gas outlet piping shut-off valve.
• 2 circuits/ 6 capacity steps.
• Water side heat exchanger: counterflow dry expansion shell and tube type, complete with: differential pressure switch, air vent valve, water drain cock, closed cell polyurethane foam rubber insulation with protection film against UVA rays. Victaulic connections.
• Air side heat exchanger: consisting of coil made of copper pipes and aluminium fins divided into two sections: one dedicated to the condensation of the refrigerant gas and one dedicated to cooling the water in free-cooling mode.
• 3-way modulating valve to divert the water flow from the system towards the free-cooling coil or directly towards the evaporator.
• Fan: external rotor axial type electric fans, equipped with internal thermal protection, accident protection grilles and a proportional electronic device for pressurised and continuous fan rotation speed regulation up to an outdoor air temperature of -15°C.
• Control: electronic microprocessor control prepared for the connection with the main BMS available on the market (MODBUS RTU, LON, BacNet).
• Structure: load-bearing structure made of galvanised and painted steel plate with polyester powder coating. The unit is also complete with:
- display of cooling circuit high and low pressure;
- Master/Slave control up to 4 units in parallel;
- clock board.
Versions
• B - High efficiency standard version (TFAVBZ).
• I -Soundproofed version with soundproofing lining on the compressor compartment (TFAVIZ).
• S - Silenced version with soundproofing lining on the compressor compartment and reduced speed fans (TFAVSZ).
Models
• TFAVBZ: high efficiency base unit in Freecooling mode.
• TFAVIZ: soundproofed unit in Freecooling mode.
• TFAVSZ: silenced unit in Freecooling mode.
Factory fitted accessories
• Condensing control -20°C with fans with EC motor.
• Power factor correction capacitors (cosφ > 0.94).
• Compressor and fan circuit breaker switches.
• Forced limit of power consumption.
• Inlet compressor shut-off valves.
• Low and high pressure gauges for each cooling circuit.
• Bottom compartment protection nets.
• Coil protection nets.
• Coil protection metal filter.
• Compressors with linear capacity control (25-100 %).
• Evaporator antifreeze heater.
• Digital input for double set-point.
• Low water temperature.
• Double high pressure safety valve with exchange valve.
• Stainless steel cooling circuit.
• Electrical panel heater.
• Soft starter.
• Compressor oil level sensor.
• Control of min/max power supply voltage.
• 4-20 mA analogue signal for shifting set-point.
• Pre-painted copper/coils or copper/copper coils.
• Interfaces for serial communication with other devices.
• Spring anti-vibration mounts.
Separately supplied accessories
• Remote keypad with display.
• Rhoss supervisors for unit monitoring and remote management.
Technical data
| TFAVBZ – TFAVIZ – TFAVSZ MODEL | 2420 | 2450 | 2500 | 2560 | 2660 | 2750 | 2800 | 2850 | 2920 | 2990 | 21050 | 21100 | ||||
| FREE-COOLING OFF | ||||||||||||||||
| ❶ | Nominal cooling capacity | kW | 481 | 512 | 574 | 636 | 756 | 825 | 885 | 944 | 1019 | 1093 | 1155 | 1216 | ||
| ❶ | Nominal cooling capacity | kW | 469 | 499 | 555 | 618 | 737 | 811 | 867 | 922 | 1000 | 1071 | 1129 | 1186 | ||
| ❶ | E.E.R. | 3,79 | 3,79 | 3,7 | 3,72 | 3,74 | 3,77 | 3,71 | 3,66 | 3,69 | 3,72 | 3,68 | 3,64 | |||
| ❶ | E.E.R. | 3,78 | 3,78 | 3,6 | 3,68 | 3,76 | 3,75 | 3,66 | 3,57 | 3,68 | 3,69 | 3,61 | 3,55 | |||
| ❶ | Absorbed power | kW | 127 | 135 | 155 | 171 | 202 | 219 | 238,5 | 258 | 276 | 294 | 314 | 334 | ||
| ❶ | Absorbed power | kW | 124 | 132 | 154 | 168 | 196 | 216 | 237 | 258 | 272 | 290 | 313 | 334 | ||
| FREE-COOLING ON 100% | ||||||||||||||||
| ❷ | Nominal cooling capacity | kW | 481 | 512 | 574 | 636 | 756 | 825 | 885 | 944 | 1019 | 1093 | 1155 | 1216 | ||
| ❷ | Nominal cooling capacity | kW | 469 | 499 | 555 | 618 | 737 | 811 | 867 | 922 | 1000 | 1071 | 1129 | 1186 | ||
| ❷ | E.E.R. | 24,05 | 25,6 | 28,7 | 26,5 | 23,63 | 25,78 | 27,66 | 29,5 | 25,48 | 27,33 | 28,88 | 30,4 | |||
| ❷ | E.E.R. | 37,5 | 39,89 | 44,43 | 41,19 | 36,84 | 40,57 | 43,36 | 46,12 | 39,99 | 42,84 | 45,15 | 47,44 | |||
| ❷ | Absorbed power | kW | 20 | 20 | 20 | 24 | 32 | 32 | 32 | 32 | 40 | 40 | 40 | 40 | ||
| ❷ | Absorbed power | kW | 12,5 | 12,5 | 12,5 | 15 | 20 | 20 | 20 | 20 | 25 | 25 | 25 | 25 | ||
| ❷ | Total Free-cooling Temperature | °C | 2,4 | 1,8 | 1,1 | 1,8 | 2,3 | 1,9 | 1,2 | 0,6 | 1,1 | 1,6 | 1,1 | 0,5 | ||
| ❷ | Total Free-cooling Temperature | °C | 1,2 | 0,5 | 0 | 0,8 | 1,1 | 0,5 | 0 | -0,7 | 0 | 0,3 | -0,5 | -1 | ||
| TFAVBZ – TFAVSZ MODEL | 2420 | 2450 | 2500 | 2560 | 2660 | 2750 | 2800 | 2850 | 2920 | 2990 | 21050 | 21100 | ||||
| ❸ | Sound pressure | dB(A) | 65 | 65 | 65 | 66 | 68 | 68 | 68 | 68 | 69 | 69 | 69 | 69 | ||
| ❸ | Sound pressure | dB(A) | 60 | 60 | 60 | 60 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 63 | ||
| ❹ | Sound power | dB(A) | 98 | 98 | 98 | 99 | 101 | 101 | 101 | 101 | 102 | 102 | 102 | 102 | ||
| ❹ | Sound power | dB(A) | 92 | 92 | 92 | 93 | 95 | 95 | 95 | 95 | 96 | 96 | 96 | 96 | ||
| Screw compressors/steps | n. | 2/6 | 2/6 | 2/6 | 2/6 | 2/6 | 2/6 | 2/6 | 2/6 | 2/6 | 2/6 | 2/6 | 2/6 | |||
| Circuits | n. | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | |||
| Electrical 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 | |||
| DIMENSIONS AND WEIGHTS | 2420 | 2450 | 2500 | 2560 | 2660 | 2750 | 2800 | 2850 | 2920 | 2990 | 21050 | 21100 | ||||
| L – Width | mm | 6130 | 6130 | 6130 | 7160 | 10080 | 10080 | 10080 | 10080 | 12080 | 12080 | 12080 | 12080 | |||
| H – Height | mm | 2580 | 2580 | 2580 | 2580 | 2580 | 2580 | 2580 | 2580 | 2580 | 2580 | 2580 | 2580 | |||
| P – Depth | mm | 2260 | 2260 | 2260 | 2260 | 2260 | 2260 | 2260 | 2260 | 2260 | 2260 | 2260 | 2260 | |||
| ❺ | TFAVBZ weight | kg | 4850 | 5700 | 5780 | 6470 | 8180 | 8280 | 8740 | 9155 | 10245 | 10255 | 10580 | 10640 | ||
| ❺ | TFAVIZ – TFAVSZ weight | kg | 5090 | 6000 | 6080 | 6770 | 8560 | 8660 | 9120 | 9535 | 10625 | 10635 | 10960 | 11020 | ||
| SEASONAL ENERGY PERFORMANCE | 2420 | 2450 | 2500 | 2560 | 2660 | 2750 | 2800 | 2850 | 2920 | 2990 | 21050 | 21100 | ||||
| TFAVBZ – TFAVIZ MODEL SEASONAL PERFORMANCE IN COOLING MODE | ||||||||||||||||
| ⑤ | PdesignR | kW | 419,8 | 447,6 | 501,5 | 554,3 | 658,9 | 745,2 | 796,8 | 847 | 917,5 | 983,2 | 1038,8 | 1092,7 | ||
| ⑤ | SEPR | 5,59 | 5,59 | 5,57 | 5,57 | 5,6 | 5,61 | 5,56 | 5,54 | 5,6 | 5,61 | 5,61 | 5,58 | |||
| TFAVSZ MODEL SEASONAL PERFORMANCE IN COOLING MODE | ||||||||||||||||
| ⑤ | PdesignR | kW | 408,8 | 435,9 | 484,8 | 538,7 | 641,9 | 731,1 | 779 | 825,5 | 898,2 | 961,1 | 1013,1 | 1063,4 | ||
| ⑤ | SEPR | 5,64 | 5,64 | 5,62 | 5,65 | 5,63 | 5,63 | 5,61 | 5,6 | 5,65 | 5,63 | 5,68 | 5,6 | |||
- Data at the following conditions:
- ❶ Air: 30°C – Water: 15/10°C – Ethylene glycol 30%.
- ❷ Water: 15/10°C – Ethylene glycol 30%.
- ❸ In open field (Q = 2) at 10 m from the unit.
- ❹ Total sound power level in dB(A) based on measurements carried out in accordance with regulation UNI EN-ISO 9614.
- ❺ Weight referred to the unit without load and not accessorised.
- ■ TFAVSZ silenced version.
- ⑤ Application for high temperature (7°C) process chiller (EU Regulation 2016/2281)
Manuals
To view all the documents, log in to the reserved area
Technical notes
To view all the documents, log in to the reserved area
Documents
To view all the documents, log in to the reserved area
Images
Request information about this product
Find a reseller in your area for a customized offer on Rhoss air conditioning solutions.