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.
- GRS/DX - Right configuration
- GRS/SX - Left configuration
- 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.
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
- CRT Touch screen remote control panel
- KTV Vertical installation conversion kit
- SQO Air quality sensor (CO2)
- KSA Sanitization module with UVC plasma and antivirus
- V33 3-way modulating valve with servo control
|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|
|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|
|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|
|Recovery efficiency (2)||%||76,1||75,1||76,3||77,2||76,2||77,3||77,2|
|Heating capacity (3)||kW||2,85||4,98||7,86||10,38||11,98||16,79||21,08|
|Water flow (4)||l/s||375||665||1120||1475||1695||2375||2770|
- 1 Under humid conditions at nominal flow rate: outdoor air at - 10 °C 90% RH, ambient air at 22 °C 50% RH.
- 2 In condizioni secche alla portata nominale: aria esterna a 5° C, aria ambiente a 25° C
- 3 Alla portata nominale: aria in ingresso a 15° C, acqua in/out a 45°/40° C
- 4 Alla portata nominale: aria in ingresso a 28° C 60% UR, acqua in/out a 7°/12° C
- Product guides _novair_catalogo_recuperatori_2022_w_hRhJ2in.pdf
- Technical brochures 08_GRS_nvb_231.pdf
- Installation, use and maintenance manuals Manuale_Regolazione_GRS_nvmr_231_a_b.pdf
- Installation, use and maintenance manuals (IT) Manuale_Installazione_GRS_nvm_231_a.pdf
- Installation, use and maintenance manuals (EN) Installation_Manual_GRS_nvm_231_b.pdf