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VMA-VMB
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Catalog excerpts

VMA-VMB - 1

Novenco Air Heaters NoVa® Range — VMA and VMB April 2007

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VMA-VMB - 2

Product Facts An integrated unit with an axial flow fan and a heating coil for heat- cally boiler water) (typically district heating wa- For room heating in industrial and workshop buildings, halls, ware- houses, etc. Also for use with acces- sories for fresh air in room verntila- Five installation sizes with air flow rates from 0.2 to 2.2 m /s and heat Design - construc- tion system The basic unit is compact, has an in- tegrated motor, axial flow fan and heating coil in a joint cabinet. The outlet side of the basic unit is fitted with air distribution accesso- ries for varying air supply...

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Heating Requirements in Buildings NoVa® — System in General NoVa® — Construction System Dimensioned Drawings, Weights and Arrangements Dimensioned Drawings, Accessories and Weights Capacities VMA — Boiler Water Capacities VMB — District Heating Water Capacities, Correction Factors and vertical Projection Distances Selection Graphs Water Resistance and Sound Conditions Heat Regulation and Frost Protection Motors, Regulators and Thermostats NoVa online Internet Program Novenco Item Numbers This document is provided 'As is' and is subject to change without notice. Novenco reserves this right...

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Heating Requirements in Buildings Today buildings are heated in a lot of different ways depending on requirements and layout. Novenco's range of air heaters address this need and is designed for large rooms such as halls, workshops and sports Calculating the heating requirement of buildings in- cludes the transmission and ventilation losses. The transmission loss («ET) depends on the difference between the indoor and outdoor temperatures, the type of building components, the degree of insulation as well as a number of other factors. Refer to DIF NP- 186-S for exact transmission...

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Air heaters are integrated units containing a heating coil and a fan. They are primarily designed to heat large rooms by delivering hot air. This heating method has a number of spatial, opera- tional and financial advantages. • Air heaters, which are easily installed on walls or under ceilings, take up little space and can be placed in well-suited locations with respect to • The supplied hot air mixes quickly with the room air and creates a circulating air flow that distributes the heat to all parts of the room. • In rooms requiring forced air renewal the air heaters can be fitted with...

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NoVa®— System in General The No Va range consists of a number of air heaters for both horizontal and vertical installation. Both VMA and VMB are produced in five sizes with air flow rates ranging from 0.2 to 2.2 m3/s and heating NoVa®-Range — Overview The air heater - the basic unit - consists of an axial flow fan integrated with a fin heating coil. The outlet side on the basic unit can be fitted with accessories for air distribution in various designs. On the inlet side accessories can be fitted for return air, The construction system is shown and explained on This type is typically used...

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Basic unit VMA/VMB • fan and heating coil in joint cabinet • with individually adjustable fins • with individually adjustable fins in two op- posite directions Mixing housing in three versions • B3, without damper, for connection of return • B13, with mutually connected dampers at the top and bottom for fresh and return air • B23, with connected dampers at the rear and bottom for fresh and return air • The duct connections are nipples. The mix- ing housings are mounted directly on the wall. The mixing dampers can be operated manually or using a damper motor directly connected to the...

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Dimensioneel Drawings, Weights and Arrangements Dimensioned drawings The accessory designations are written in the figures. See also the next page.

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Dimensioned Drawings, Accessories and Weights NOVEN Mixing housing B3 without damper Mixing housing B23 and wall grating M NoVa® -4 NoVa® -5 NoVa® -6 NoVa® -7 NoVa® -8 Mounting angles * * Joint support for mixing housing and basic unit, This is always included with mixing housings.

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Capacities VMA — Boiler Water See section "Motors, Regulators and Thermostats" on page 16 for regulation at other RPMs. Actual tem- peratures and power consumption are calculated with No Va online at www.novenco.biz/nova. Heat medium: Boiler water 60/50 °C Heat medium: Boiler water 70 / 50 °C and 80/60 °C See page 14 for water resistance. Tx = Inlet temperature, water [°C] T2 = Outlet temperature, water [°C]

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Capacities VMB — District Heating Water See section "Motors, Regulators and Thermostats" on page 16 for regulation at other RPMs. Actual tem- peratures and power consumption are calculated with No Va online on www.novenco.biz/nova. Heat medium: District heating water 70/40 °C Heat medium: District heating water 80/40 °C and 70 / 30 °C = Inlet temperature, water [°C] = Outlet temperature, water [°C] See page 14 for water resistance.

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Capacities, Correction Factors and vertical Projection Distances Damper motors for mixing Damper motors for direct connection to the damper The necessary torque for damper motors is 8 Nm. Damper motors are optional and are available on re- Vertical projection distances - with built-on cone The table shows the connection between outlet tem- perature, room temperature and vertical projection This influences on, among other things, the heating of completely cold rooms to normal room temperature with vertical air supply. In such cases the heating oc- curs faster in the residence zone when the...

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VMA-VMB - 14

Water Resistance and Sound Conditions Water resistance Water flow rate [l/s] Water resistance Sound conditions The sound produced by the air heaters when operat- ing is called the sound power level. It is a measure of the sound energy emitted by the fan and depends pri- The sound power level is part of all calculations of sound conditions in rooms served by the air heaters. It is expressed in dB with a reference value of 10"12 W. The sound pressure level is a measure of the perceived sound impression at a given location in the surround- ings near the fans. It depends on the sound power lev-...

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