JUNIORTM BCP Air a handling units for swimming pools Maximum currents (A) JUNIORTMBCP 20 30 40 50 60 70 80 90 Compressor 230 V / I ph / 50 Hz (±10%) 13,5 18 24 -- -- -- -- -- 400 V / III ph / 50 Hz (±10%) -- -- 9 11 14 14 17 17 Supply air fan 230 V / I ph / 50 Hz (±10%) 3,6 3,6 6,6 6,6 6,6 -- -- -- 400 V / III ph / 50 Hz (±10%) -- -- -- -- -- 4,6 4,6 4,6 Return air fan (option) 230 V / I ph / 50 Hz (±10%) 1,4 1,4 3,8 3,8 3,8 3,8 8,2 8,2 Auxiliary heater (option) Available capacities JUNIORTMBCP Voltage 230 V / I ph / 50Hz Power (kW) 3 4 5 6 20 / 30 / 40M Current (A) 13 17,4 21,7 26,1 JUNIORTMBCP Voltage 400 V / III ph / 50 Hz Power (kW) 3 6 9 12 15 18 40 Current (A) 4,3 8,7 13 Not available 50 Current (A) 4,3 8,7 13 17,3 Not available 60 Current (A) 4,3 8,7 13 17,3 21,7 Not available 70 / 80 / 90 Current (A) 4,3 8,7 13 17,3 21,7 26,0 Reaction to corrosion The plates exchangers of JUNIORTMBCP units (standard in models 70 to 90 and optional in models 40 to 60) are made up of SMO-254 stainless steel, and the material used for the plateswelding is pure copper. The attached table indicates the behaviour to corrosion for stainless steel SMO-254 with respect to different compositions of water. Values outside these ranges may suppose corrosion problems. Important recommendations: ■I f the pool water is introduced directly into the unit water condenser, the addition of chlorine should never be carried out before the inlet to this condenser. ■ These exchangers should never be used in swimming pools with electrolysis efficiency treatment.In these cases it is necessary to install intermediate titanium exchanger, otherwise serious corrosion problems may occur. ■ I n the case of a longer standstill, leave the exchanger full of water pool without flowing or empty may cause corrosion problems. During periods of inactivity it is mandatory to fill up the hydraulic circuit of the exchanger completely with demineralised water. To isolate the hydraulic circuit of the rest of the installation, the installer must have shut-off valves at the input and output, and a drain for emptying. Note: Consult “Assembly recommendations” included in the operating instructions manual. Water Concentration Time limits SMO-254 Water Concentration Time limits SMO-254 content (mg/l or ppm) (analyze before) content (mg/l or ppm) (analyze before) Alkalinity < 70 + Free chlorine < 1 + (HCO-3) 70 - 300 Within 24h + (Cl2) 1 - 5 Within 5 horas 0 > 300 + > 5 - Sulphate 1 < 70 + Hydrogen sulfide < 0.05 + 70 - 300 No limit + (H2S) No limit (SO42-) > 0.05 + > 300 + < 5 Free (aggressive) + HCO-/ SO2- > 1.0 No limit + 5 - 20 No limit 3 carbon dioxide (CO2) + 4 < 1.0 + > 20 + Electrical < 10 S/cm + Total hardness (ºdH) 4.0 - 8.5 No limit + conductivity 10-500 S/cm No limit + Nitrate 1 < 100 > 500 S/cm No limit + + (NO-) < 6.0 0 3 > 100 + 6.0 - 7.5 + Iron 3 (Fe) < 0.2 No limit + pH 2 7.5 - 9.0 Within 24h > 0.2 + + > 9.0 + Aluminium (Al) < 0.2 No limit + < 2 + > 0.2 + Ammonium 2 - 20 Within 24h (Mn) < 0.1 + (NH+4) + Manganese 3 > 0.1 No limit > 20 + < 100 + Chlorides 100 - 200 No limit + 1Sulfates and nitrates works as inhibitors for piping corrosion caused by (Cl-) 200- 300 + chlorides in pH neutral environments. > 300 2 I n general, low pH (below 6) increases corrosion risk and high pH Legend : (above 7.5) decreases the corrosion risk. + Good resistance under normal conditions. 3 Fe3+ and Mn4+ are strong oxidants and may increase the risk for 0 Corrosion problems may ocurr specially when more factors are value 0. localised corrosion on stalinless steels. - Use is not recommended. SiO2 above 150 ppm increase the risk of scaling. Options JUNIORTMBCP Dual version, please consult us (see the AQUAIR BCP model). CATALOGUE 2021 215 215