HELIOTHERME 4000® Axial air heaters Description High-efficiency fan motor assembly Silent FMA with an aluminium epoxy polyester-coated airfoil propeller to ensure the best compromise between air flow efficiency and acoustic comfort. The ROTOREX design, with its electrical coils inserted into the fan hub, guarantees perfect cooling of the motor to ensure it runs with optimum efficiency. Available versions: ■THREE-PHASE 2 speed (230/400 V - 3-Ph - 50 Hz) (accessory LS/HS switch) ■ SINGLE PHASE1 variable speed (230 V - 1-Ph - 50 Hz) (accessory 5-speed autotransformer) ■CORROBLOC version guaranteed to withstand corrosive environments. HEE FMA CORROBLOC FMA Fan motor assembly equipped with a powerful HEE EC (electronically commutated) motor. These IP65/700-hour salt spray test EC motors (single-phase 230 V - 1-Ph - 50/60 Hz drive) will be progressively controlled by the 0-10 V signal, to ensure acoustic comfort and air flow efficiency and to optimise consumption of electricity. A shunt can be used to operate the air heater at maximum speed. Casing Heat exchanger • Elegant galvanised steel casing, pre-coated with RAL HIGH EFFICIENCY heat exchanger coil with tapered intake 7035 (light grey) paint (stainless steel version available on baffles to help pressurise the finned casing, available in the request). following versions: • Built-in condensate drain pan for cooling applications, ■LP hot or cold water version– Available with 1 or 3 rows: featuring an antibacterial design (perforated bottom) and quick-release fitting (diameter 1'1/4). • Copper tube Ø 9.52 mm • I nlet cone optimised for improved air flow performance and • Embossed aluminium fins – Thickness 10/100 mm acoustic comfort level. • Fin spacing 2.1 mm • Advantages: • Advantage: Excellent thermal yield (dry transfer coefficient - I ts classic design means that it can easily blend into the > 50 W/m².k) architecture of the installation site. ■ HP superheated water - oil version – Available with 1 row: - No need to add an unsightly condensate drain pan. • 316L stainless steel Ø 16 mm thick pipe - Condensate pipes quick and extremely simple to connect, • Embossed aluminium fins – Thickness 28.5/100 mm without the need for a clamp, (1'1/4 diam. quick-release • Fin spacing 2.5 mm fitting). • Compatible for use with thermal oils Diffuser • Advantage: robust finned aluminium coil block suitable for Double deflection diffuser made from rigid aluminium use in industrial environments (dirty air) and may be cleaned sections, based on the BERNOULLI fluid flow principle and using a high-pressure water jet. on NACA0012 airfoils, creating a high induction rate on ■ HP steam version – Available with 1 row: the primary air,in order to increase the air streams, limit • 316L stainless steel Ø 16 mm thick pipe the stratification phenomenon and thereby reduce energy consumption. • Embossed aluminium fins – Thickness 28.5/100 mm ■ Basic version (H4630S: On request only and for a • Fin spacing 2.5 mm minimum of 15 units): • Advantage: excellent corrosion resistance thanks to • Single-deflection diffuser with swivel blade chemicals pumped through steam network piping. • Off-white galvanised steel louvre ■ Electric version – Four capacities available: ■ JET+ version (fitted as standard): • Stainless steel single-tube heating element • Double deflection diffuser • Embossed aluminium fins – Thickness 10/100 mm • JET+ aluminium louvre with NACA0012 airfoil design • Fin spacing 2.5 mm • Each louvre can be adjusted independently • Double overheating thermostat with automatic and manual reset for compliance with fire protection standards (CH37) • Advantages: - Air flows adjustable in 4 directions for optimum coverage of• Advantage: Heating elements inserted directly into the finned block ensure excellent heat transfer. the area to be handled, while limiting draughts. - Laminar air flow for better acoustic comfort (zero turbulence at the diffuser outlet). - I ncreased air speed,thanks to the resulting aerodynamics (depression along lower surface of blade) due to the curve of the airfoil, thereby increasing the air throws and the induction rate. - Limited stratification phenomenon. - Reduced building warm-up times: - Recorded energy savings of 15 to 20%. 184 184 CATALOGUE 2021