HELIOTHERME 4000® Axial air heaters Range Heating/cooling medium LP water HP superheated water - Oil HP steam Electrical Standard drive THREE-PHASE 2 speeds – SINGLE-PHASE 1 variable speed IP 44 (H4350) and IP54 (H4400 to H4630) Reinforced variant CORROBLOC version – IP 55/65 – 700-hour salt spray test Coil (tubing/row) Copper/Alu 316L stainless steel/Alu 316L stainless steel/Alu Stainless steel/Alu Reinforced versions 316L stainless steel tubes/HERESITE coating HERESITE coating Casing Precoated off-white (RAL 7035) galvanised steel Reinforced versions 304L stainless steel ATEX versions LCIE 13 ATEX 1015 X – Zone 1 or 2 – IIB or IIC – T4 or T6 Standard/HEE Reinforced version ATEX version (high resistance to corrosion) Heating/cooling medium LP water with HEE FMA HEE drive 1-phase variable speed with 0-10 V signal IP 54 (H4300 and H4350 ) and IP55 (H4400 to H4630) Coil (tubing/row) Copper/Alu Casing Precoated off-white(RAL 7035) galvanised steel Condensate pan + built-in nautical coupling for cooling Reinforced versions 304L stainless steel 182 182 CATALOGUE 2021