BENSON AMBIRAD. ... Variante Gas Fired Unit Heaters ... HEATI NG AND VENTILATION S OLUTIONS

Transcription

1 NSON Variante as ired Unit Heaters MIR HTI N N VNTILTION S OLUTIONS

2 VR horizontal discharge unit Variante... as ired Unit Heaters... The copact highly efficient Variante heaters provide cost effective heating for ost coercial and industrial buildings, such as showroos, factories, workshops, warehouses and greenhouses. Using wall or roof ountings, the heaters are available for either roo sealed or conventional power flue applications. Model Range There are four Variante ranges: VR axial fan VR bi-directional centrifugal fan VR downflow axial fan The Variante gas fired units are available with ten heat outputs ranging fro 12kW144kW for use on natural gas (20), or propane (31). Options Top ounted spigots (VR) High/Low gas value 0-10v burner odulation ownflow heads Mixing box c/w dapers Wall brackets Stainless steel heat exchanger ir rotation therostat Specification abinet Heat xchanger urner Low profile in design and robotically punched and fored fro electro-zinc plated steel the heater cabinet presents a functional yet pleasing appearance. ccess to the burner and controls copartent is via a full width side hinged door. The unit is stove hardened epoxy powder coated with a durable Pebble rey paint finish. ored fro aluinised steel tube into a copact, highly efficient four pass S shaped assebly the Variante heat exchanger is capable of delivering efficiencies in excess of 91% nett. Variante heaters are fitted with a quiet ulti-flae, in-shot burner coplete with autoatic electronic spark ignition and ionisation flae proving. On/off control is standard, optional high/low or odulation can be specified for greater energy efficiency and close environental control. Stainless steel heat exchanger tubes are available as an option.

3 NSON as fired unit heaters... ir istribution VR heaters are fitted with high efficiency axial fans and discharge war air through an outlet grille coplete with adjustable horizontal louvres. VR heaters discharge war air in two opposing directions potentially enhancing distribution whilst reducing capital and installation costs for certain applications. VR heaters are downward discharging units that can provide both heating and de-stratification. heaters are designed for ducted applications and are fitted with a centrifugal fan(s) and have a duct spigot outlet. Louvres and downflow can be supplied as an option. coplete with centrifugal fan and duct spigot outlet for use with ductwork VR downflow discharge unit VR bi-directional unit lectric Motors ll electric otors coply with otor directive 5// fficiency ach heater within the range has been designed and developed with fuel efficiency in ind and efficiencies exceed the andatory requireents of legislation. uel Heaters can be specified to operate on either natural gas (20) or LP (Propane 31). Sealed obustion ircuit Variante heaters are factory fitted with a power flue venter that enables the heater to be operated in either roo sealed or fan assisted flue ode. The flue fan is safety interlocked with the burner control syste via a pressure differential sensor. ir istribution The VR, VR and VR odels are fitted with a dynaically balanced aerofoil type axial fan(s) which discharges warth directly into the space via adjustable horizontal louvres. Heaters for ducted applications, type, are supplied with a centrifugal fan and outlet duct connection spigot.

4 dditional ontrol at the Touch of a utton Sarto Multi-Zone To copleent the high efficiency Variante units a versatile range of Sarto control panels are available. Sarto Multi-Zone controls allow up to 16 units to be centrally controlled. unctions controlled by the aster unit include: Self adapting optiu start and stop locking updating Siple user friendly prograing Individual seven day prograing Updating teperature functions and prograe settings ay, night and frost (5o) teperature settings Viewing the roo and set teperature settings of all units Three on/off periods per day Setting holiday, overtie and vent only functions for the entire network Reote burner reset facility entralised burner lock out reset Password protection to prevent unauthorised adjustent Hours run and service data logging attery back up in the event of ains failure High Low or odulating burner control (Sarto Multi-Zone required) Multi-Zone Syste Zone 1 Master ontrol Up to 15 additional zone controls

5 NSON as fired unit heaters Technical ata Noinal heat output irflow Teperature rise Static pressure () Throw VR VR (ownflow) VR (Total) as onsuption Natural gas 20 Propane 31 as connection lectrics Supply VR / VR / VR L VR / VR / VR (standard otor) Mounting height(s) VR / VR (ownflow) VR lue diaeter no obustion air diaeter no Maxiu horizontal run Maxiu vertical run Noise level 3) VR / VR / VR Net weight VR VR / VR kw 3 /h K Pa 3 /h 3 /h Rc V/ph/hz V/ph/hz aps aps ø ø d() d() kg kg kg Model Ref ¾ ¾ ¾ 415/3/ ¾ 415/3/ Throw figures provide the distance to the point where average air velocity is 0.25 /s. Throw figures for VR heaters are based upon the effective axiu ounting height. Throw figures for VR heaters are taken as the cobined bi-directional throw to the point where the average air velocity is 0.25 /s. uel consuption and output figures based upon gross calorific values as - Natural gas MJ/3 Lpg propane MJ/3 lue and cobustion air axiu runs for guidance purposes only. Please refer to installation instructions for detailed inforation. onsideration should be given to use of downflow heads for heaters installed at axiu height. Maxiu ounting heights ay exceed the figure recoended where de-stratification fans are used (see enson S range) Noise levels at 5 available upon request.

6 NSON as fired unit heaters VR ront view Side view ack view Plan view or optional plenu and ixing box both with filters and daper details please contact our sales tea. I (Optional) J (Optional) H ront view Side view ack view Plan view VR nd view Side view Top Plan otto Plan Variante VR / / VR iensions ll odels ll odels ll odels VR/VR Suspension points (all odels) Suspension points (VR/) Suspension points (VR) plenu box (optional) plenu box (optional) Top clearance (VR/) Top clearance (VR) Rear clearance (VR) Rear clearance () Rear clearance (VR) otto clearance (VR/) otto clearance (VR) Left-hand side clearance (ll) Right-hand side clearance (ll) H I J Model Ref

7 NSON as fired unit heaters VR Plan view ront view Side view ack view Variante VR iensions Unit height Unit length Total height Unit width Total width Suspension points Suspension points Model Ref lue and obustion air collars Ø Top clearance otto clearance Left-hand side clearance Right-hand side clearance

8 ocuent reference nuber: /N/007/0913 MIR LIMIT ens Pool venue rierley Hill West Midlands Y5 1Q United Kingdo Tel: ax: MIR IRLO NORIRNIH NSON Thoas & etts opany. Registered in ngland No Registered office: 27/28 ast astle Street, London. birad UK is a registered tradeark of birad Liited. ecause of continuous product innovation, birad reserves the right to change product specification without due notice.