GRS 45÷340
Heat recovery unit from 450 to 3.400 m³/h with HIGH EFFICIENCY exchanger
Ventilation unit designed and manufactured for non-residential applications, it allows combining the need for air renewal with energy-saving and maximum flexibility and versatility of installation, thanks to the 90° adjustable air inlets with the movement of the closing panels. Equipped with a heat recovery unit in aluminium plates, fans with EC motors and integrated motorised by-pass system for free-cooling operation. The series, equipped with an easy kit for vertical installation, is divided into seven sizes, for air flow rates ranging from 450 to 3,500 m³/h.
Versions
- GRS/DX - Right configuration
- GRS/SX - Left configuration
Features
- The structure is made with 22 mm thick insulated panels in galvanised sheet metal on the inside and RAL 9002 pre-painted finish on the outside, internally insulated with non-flammable mineral wool thermal-acoustic insulation.
- Compact filters with synthetic media (external layer) and glass fibre media (internal layer) and galvanised steel frame, in the efficiency class ePM10 50% on the ambient air intake and ePM1 50% on the outdoor air intake, removable on the bottom. Each filtering station is already equipped with a control pressure switch wired on board and suitable to house two filters in sequence.
- EC Inverter Plug-Fans.
- High-efficiency static heat recovery unit of the air-to-air type with counterflow with aluminium exchange plates equipped with additional sealing, integrated with a by-pass system already motorised for free-cooling operation; condensate collection tank in aluminium, with 1/2" F double bottom drain.
- Pre-heating electrical heater predisposition.
- Post-heating electrical heater or water coil predisposition.
- Electrical board built-in in the unit with electronic adjustment and remote user interface for complete control of all features: ventilation and temperature control, filter status monitoring, weekly programming, defrost and antifreeze management, fire alarm management and Modbus interface.
Accessories
Factory fitted accessories
- FTF9 Plate filters efficiency F9 ePM1 85% - Second stage
- PF4 External air pre filter
- BCC Nozzle for circular ducts
- SK Adjustment damper
- GA Anti-vibrating joint
- AT Constant air flow regulation control
- WB Water cooling / heating coil
- EHP Supplementary electrical heater-PRE
- EHR Supplementary electrical heater-POST
Loose accessories
- CRT Touch screen remote control panel
- KTV Vertical installation conversion kit
- SQO Air quality probe (Co2)
- KSA Sanitization module with UVC plasma and antivirus
- V33 3-way modulating valve with servo control
Technical data
| 45 | 80 | 130 | 170 | 210 | 260 | 340 | |||
| Air flow | Nominal | m³/s | 0,13 | 0,22 | 0,36 | 0,47 | 0,58 | 0,72 | 0,94 |
| Electrical characteristics | Power supply | V/Ph/Hz | 230/1/50 | 230/1/50 | 230/1/50 | 230/1/50 | 400/3+N/50 | 400/3+N/50 | 400/3+N/50 |
| Rated operating current | A | 2,5 | 2,9 | 5,1 | 6,0 | 5,5 | 2,9 | 3,0 | |
| Max. running current | A | 2,8 | 2,9 | 6,0 | 6,0 | 6,7 | 3,4 | 3,5 | |
| Motors nominal power | kW | 0,30 | 0,34 | 0,78 | 0,92 | 1,25 | 1,50 | 1,60 | |
| Max. motor power | kW | 0,33 | 0,34 | 0,92 | 0,92 | 1,60 | 2,00 | 2,00 | |
| OPERATING RANGE | Max. air flow imbalance | % | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Min air temperature | °C | -20 | -20 | -20 | -20 | -20 | -20 | -20 | |
| Max air temperature | °C | 45 | 45 | 45 | 45 | 45 | 45 | 45 | |
| Heat Recovery | Recovery efficiency (1) | % | 87,0 | 85,9 | 89,7 | 89,7 | 86,4 | 89,6 | 89,5 |
| Recovery capacity (1) | kW | 4,17 | 7,32 | 16,25 | 16,25 | 19,74 | 25,02 | 32,70 | |
| Delivery temperature (1) | °C | 17,8 | 17,5 | 18,7 | 18,7 | 17,7 | 18,7 | 18,6 | |
| Compliance with EU Regulation 1253/2014 | Recovery efficiency (2) | % | 76,1 | 75,1 | 76,3 | 77,2 | 76,2 | 77,3 | 77,2 |
| Electrical Heater | Power | kW | 1,5 | 2,5 | 4,0 | 5,0 | 5,0 | 7,5 | 10,5 |
| Power supply | V/Ph/Hz | 230/1/50 | 230/1/50 | 230/1/50 | 230/1/50 | 230/1/50 | 400/3+N/50 | 400/3+N/50 | |
| Internal water coil | Total cooling capacity (3) | kW | 2,18 | 3,87 | 6,46 | 8,65 | 9,86 | 13,88 | 16,14 |
| Sensitive cooling capacity (3) | kW | 1,22 | 2,17 | 3,55 | 4,76 | 5,42 | 7,49 | 9,04 | |
| Heating capacity (4) | kW | 2,85 | 4,98 | 7,86 | 10,38 | 11,98 | 16,79 | 21,08 | |
| Water flow (3) | l/s | 375 | 665 | 1120 | 1475 | 1695 | 2375 | 2770 | |
| Water-side pressure drops (3) | kPa | 7 | 10 | 17 | 24 | 29 | 25 | 7 | |
| Air-side pressure drops (3) | Pa | 5 | 6 | 8 | 9 | 9 | 13 | 17 | |
| Water connections | " G | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 1 | 1 | |
| Weight | kg | 28 | 31 | 35 | 42 | 52 | 58 | 77 | |
| Weights | Transport weight | kg | 103 | 129 | 202 | 227 | 232 | 302 | 339 |
| Operating weight | kg | 90 | 115 | 185 | 210 | 215 | 275 | 310 | |
Dimensions
| 45 | 80 | 130 | 170 | 210 | 260 | 340 | |||
| L | DX-SX | mm | 1680 | 1825 | 2050 | 2190 | 2190 | 2380 | 2380 |
| W | DX-SX | mm | 695 | 845 | 1045 | 1045 | 1045 | 1520 | 1880 |
| H | DX-SX | mm | 340 | 380 | 465 | 590 | 590 | 590 | 590 |
Notes
- 1 Under humid conditions at nominal flow rate: outdoor air at - 10 °C 90% RH, ambient air at 22 °C 50% RH.
- 2 Under dry conditions at nominal flow rate: outdoor air at 5°C, ambient air at 25°C
- 3 At nominal flow rate: air inlet at 28° C 60% RH, water in/out at 7°/12° C
- 4 At nominal flow rate: air in at 15° C, water in/out at 45°/40° C