NSON Variante3 as ired Unit Heaters
3 Variante... as ired Unit Heaters... The new Variante3 builds on the technical excellence of the previous range to provide cost effective and robust heating for industrial and commercial buildings. Using wall or roof mountings, the heaters are available for either room sealed or conventional power flue applications. Model Range There are 2 Variante ranges: >> VR axial fan >> VR centrifugal The Variante gas fired units are available with eleven heat outputs for use on natural gas (20) as standard, but alternatively can be specified for use on propane (31). VR heaters are fitted with axial fans and discharge warm air through a front outlet fitted with both horizontal and vertical louvers. Units can be turned through 900 and blow vertically downwards when using the rear mounted suspension points. Specification abinet ormed from electro-zinc plated sheet steel and painted epoxy pebble grey (RL 7032) to give a robust and durable finish. Louvres urner In-shot burner type with automatic spark ignition and full safety flame proving. On/ Off control is supplied as standard with painted yellow olive (RL 6014) (VR Only) High/Low and modulating control optional. Heat xchanger Tubular four-pass serpentine arrangement manufactured as standard from alumised steel with stainless steel option. Power Venter lue an Variante3 are fitted with a powerful venter fan that enables exhaust & combustion air to be run up to a maximum of 9m each. VR heaters are fitted with direct drive centrifugal fans and discharge warm air via a duct spigot on the outlet (optional louvers are available for free-blowing applications). or applications requiring a ducted connection on the inlet, an optional blower cabinet is available which can also be fitted with filters with filters and/or mixing dampers if required.
NSON as fired unit heaters... Options > > Top flue outlet (VR) > > Stainless steel heat exchanger > > High/low or modulating burner > > 30deg or 60deg downflow heads > > Wall brackets (VR) > > estratification thermostat > > lower cabinet > > ilters* > > Mixing dampers with either two position or modulating damper motor* VR VR complete with duct spigot outlet VR complete with optional blower cabinet lectric Motors ll electric motors are rp compliant where necessary. fficiency ach heater within the Variante range has been designed and developed with fuel efficiency in mind with efficiencies exceeding the mandatory requirements of building regulations. uel Heaters are supplied for use with natural gas (20) as standard, however propane (31) is available upon request. Sealed ombustion ircuit Variante heaters are factory fitted with a power flue venter that enables the heater to be operated in either room sealed or fan assisted flue mode. The flue fan is safety interlocked with the burner control system via a pressure differential sensor. single phase electrical supply is required to each unit except the VR60 which is three phase. This supply should not be switched off except for maintenance
NSON as fired unit heaters... Versatile lue Installation The balanced flue terminal provides both the combustion air inlet and flue outlet from a single building penetration. The terminals are ordered separately from the heaters to suit either a wall outlet or roof outlet. dditional flue and combustion air pipes may be added, up to a maximum of nine metres of flue pipe, plus nine metres of combustion air pipe. (This reduces by 1.5 metres for every 90 bend fitted). Installation Units may be suspended or alternatively mounted on a suitable non-combustible support. Integral suspension points complete with an M10 female thread are provided to each heater. alanced flue wall outlet (type 12) eliminates expensive roof opening and flashing alanced flue roof outlet (type 32) single phase electrical supply is required to each unit except the VR60 which is three phase. This supply should not be switched off except for maintenance. Min 300 mm Units must not be installed in atmospheres containing flammable or explosive vapours, combustible dust, halogenated hydrocarbons or chlorinated vapours. They are also unsuitable for areas where contaminants may affect electrical motors or connections. ombustion air through wall, flue outlet through the roof (52) Separate combustion air and flue pipes (type 12) for applications where wall thickness exceeds maximum length shown in flue dimension table Heater positions and flue arrangements illustrate VR models and are indicative only. or heater and flue clearances please refer to the appliance installation and maintenance instructions. To complement the Variante units a versatile range of Smartom control panels are available Optimised ontrol > > Self adapting optimum start and stop > > asy set overtime and holiday periods Remote burner reset facility > > Password protection to prevent unauthorised adjustment > > Simple user friendly programming > > Individual seven day programming > > ay, night and frost (5 ) temperature settings > > Three on/off periods per day > > Hours run and service data logging > > attery back up in the event of mains failure > > High / low or modulating burner control (Smartom MZ required) Optional Smartom MZ panel allows up to 16 panels to be linked for centralised control
NSON as fired unit heaters VR VR Technical ata Nominal heat output irflow Temperature rise kw m 3 /h K m 3 /h kg/h 2.52 3.02 1.86lue Outlet 2.22 Model 12 20 30 35 45 50 60 75 100 120 145 11.1 1100 30 21.8 2045 31 25.9 2326 33 36.2 3170 33 44.6 4270 31 50.7 5012 30 60.9 5214 34 73.1 7282 29 8.38 6.17 94.5 8024 34 119.3 10764 32 Throw m 9.5 13.0 17.0 24.0 25.0 23.0 30.0 32.0 31.0 38.0 39.0 as onsumption Natural gas 20 Propane 31 1.27 N 4.19 3.09 5.19 3.82 5.82 4.29 lectrical Supply V/ph/hz 230/240V 1N ~ 50Hz Mounting height(s) m 2.5 3.0 4.0 4.0 4.0 4.0 5.0 5.0 5.0 6.0 6.0 Noise level (1) d() 43 49 54 55 55 52 61 62 60 61 62 Net weight kg 59 59 64 94 99 114 114 126 184 242 279 as consumption & outputs based upon natural gas 20 having a calorific value of 10.5kWh/ m3 V & Propane 31 14.0kWh/kg V 6.98 5.15 10.95 8.24 13.80 10.17 137.3 11400 35 15.77 11.62 Minimum gas inlet pressure is 17.5mbar for natural gas & 37mbar for Propane. Maximum inlet pressure is 50mbar. as onnection 1. lectrical onnections. 2. Service Panel. 3. Suspension Points (M10 emale). Tolerance ll imensions ± 2 mm. lue Outlet VR imensions as onnection Model Ref 12 20 30 35 45 50 60 75 100 120 145 Unit Width 965 965 965 965 965 1298 1298 1298 1298 1750 1750 Unit Height 567 567 567 845 845 845 845 845 954 980 1 Unit epth 652 652 652 652 652 652 652 652 807 846 846 1. lectrical onnections. Overall epth 2. Service Panel. 782 785 821 824 824 838 824 824 1022 1057 1057 Suspension Points 3. Suspension Points (M10 emale). M10 emale Suspension entres Tolerance ll imensions ± 2 mm. 1365 1365 550 770 770 lue Outlet & dia 80 100 100 130 130 130 130 130 130 130 130 as connection Rc 1/2" 1/2" 1/2" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" learances (minimum) Top Rear of an ottom Non ccess Side ccess Side 450 800
NSON as fired unit heaters VR VR Technical ata Nominal Heat Output irflow @ min static irflow @ max static Min static pressure Max static pressure as onsumption Natural as 20 Propane 31 lectrical Supply kw Pa Pa kg/h V/ph/Hz Model 20 30 45 60 75 100 22 2500 2250 50 200 2.52 1.86 26 4200 2700 50 300 3.02 2.22 230/240V 1N ~ 50Hz 45 5400 4000 61 73 95 50 200 200 350 300 5.19 3.82 6.98 5.15 400/415V 3P ~ 50Hz 8.38 6.17 11.19 8.24 230/240V 1N ~ 50Hz lower lectrical Rating W 300 600 1000 550 1800 1800 Total lectrical Rating W 453 753 1153 703 1953 1953 Noise level d() Net Weight kg 59 59 64 94 99 114 Min & max static pressure refers to external static pressure of ductwork (by others) as consumption & outputs based upon natural gas 20 having a calorific value of 10.5kWh/m3 V & Propane 31 14.0kWh/kg V H Minimum gas inlet pressure is 17.5mbar for natural gas & 37mbar for Propane. Maximum inlet pressure is 50mbar. lue Outlet as onnection VR imensions Model 20 30 45 60 75 100 Unit Width 965 965 965 1298 1298 1298 Unit Height 567 567 845 845 845 954 Unit epth 652 652 652 652 652 807 Overall epth 1105 1105 1215 1215 1300 1455 Suspension Points Suspension entres M10 emale lue Outlet & dia 100 100 1. lectrical 130 onnections 130 130 130 as onnection Rc 1/2" 1/2" 2. Service 3/4" Panel 3/4" 3/4" 3/4" 3. Suspension Points (M10 emale) uct Outlet Spigot 307 372 607 515 607 810 H 533 533 (O): 533 Outher imensions 761 761 761 learances (minimum) Top Rear of an ottom Non ccess Side ccess Side Tolerance ll imensions ± 2 mm 250 500 550
NSON as fired unit heaters VR with abinet VR with abinet Technical ata Nominal Heat Output irflow @ min static irflow @ max static kw Model 20 30 45 60 75 100 22 3100 2100 26 3900 2300 Max static pressure Pa 250 300 250 200 as onsumption Natural as 20 Propane 31 lectrical Supply kg/h V/ph/Hz 2.52 1.86 3.02 2.22 230/240V 1N ~ 50Hz 45 6200 5200 5.19 3.82 61 6500 5700 6.98 5.15 400/415V 3P ~ 50Hz 73 9600 7500 8.38 6.17 95 10500 8500 11.19 8.24 230/240V 1N ~ 50Hz lower lectrical Rating W 300 600 1000 550 1800 1800 Total lectrical Rating W 453 753 1153 703 1953 1953 Noise level d() Net Weight kg 59 59 64 94 99 114 Min & max static pressure refers to external static pressure of ductwork (by others) irflows & max static pressure quoted, exclude the use of optional filters and/or mixing dampers as consumption & outputs based upon natural gas 20 having a calorific value of 10.5kWh/ m3 V & Propane 31 14.0kWh/kg V Minimum gas inlet pressure is 17.5mbar for natural gas & 37mbar for Propane. Maximum inlet pressure is 50mbar. as onnection as onnection 60 1375 2027 604 121 1002 149 1298 123 lue Outlet SIZ75 1375 2027 604 121 1002 149 1298 H I 123 J as onnection 20100 1025 1375 1677 2182 404604 82175 502 1002 232149 965 1298 123128 550 30 1025 1677 404 82 502 232 965 123 1. Suspension VR Points with (M10 abinet emale) imensions 45 1190 1842 504 171 802 82 965 123 2. lectrical onnections 3. as onnection 60 1375 2027 604 Model121 1002 149 1298 123 75 1375 2027 604 121 1002 149 1298 123 lue Outlet (od) Outher imensions 20 30 45 60 75 100 100 1375 2182 604 175 1002 149 1298 128 550 Tolerance ll imensions ± 2 mm Unit Width 965 965 965 1298 1298 1298 1. Suspension Points (M10 emale) 2. lectrical onnections Unit Height 567 567 845 845 845 954 3. as onnection abinet epth 1025 1025 1190 1375 1375 1375 (od) Outher imensions Tolerance ll imensions Overall epth ± 2 mm 1677 1677 1842 2027 2027 2182 Suspension Points Suspension entres M10 emale lue Outlet & dia 100 100 130 130 130 130 learances (minimum) Top Rear of an ottom Non ccess Side ccess Side H H SIZ H I J 20 1025 1677 404 82 502 232 965 123 30 1025 1677 404 82 502 232 965 123 45 1190 1842 504 171 802 82 965 123 as onnection Rc 1/2" 1/2" 3/4" 3/4" lue Outlet 3/4" 3/4" uct Outlet Spigot 404 404 504 604 604 604 H 502 1. Suspension Points 502 (M10 emale) 802 1002 1002 1002 2. lectrical onnections 3. as onnection (od) Outher imensions Tolerance ll imensions ± 2 mm 250 500 550 H SIZ 20 1 30 1 45 1 60 1 75 1 100 1
NORTK LOL HV (UK) LT ens Pool venue rierley Hill West Midlands Y5 1Q United Kingdom /N/VR/007/0416 Tel: 01384 489 700 ax: 01384 489 707 bensonsales@nortek.com www.bensonheating.co.uk Registered in ngland No. 01390934. Registered office: 10 Norwich Street, London, 4 1. Nortek lobal HV is a registered trademark of Nortek lobal HV Limited. ecause of continuous product innovation, Nortek lobal HV reserves the right to change product specification without due notice.