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 sensor (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/h	450	800	1300	1700	2100	2600	3400
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
	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
Heat Recovery	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
	Weight	kg	28	31	35	42	52	58	77
Electrical Heater	Power	kW	1,5	2,5	4,0	5,0	5,0	7,5	10,5
Electrical Heater	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
Weights	Transport weight	kg	103	129	202	227	232	302	339
Weights	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 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