The S3-3S / WHS3-3S-1789 model is a compact and efficient heater designed for heating industrial halls, warehouses, workshops, logistics centers, and professional spaces.

The device features a galvanized steel casing with electrostatic paint, ensuring corrosion resistance and high mechanical stability. It incorporates a single-row heat exchanger and a three-speed fan (IP54), compliant with the ErP 2015 Directive for energy efficiency.

The three fan speeds allow precise airflow adjustment, while the optional connection to HC automation systems offers full temperature control and economical operation.

Advantages:

• Durable galvanized steel casing with electrostatic paint
• Compact design, easy installation on wall or ceiling
• Energy-efficient three-speed fan, IP54 protection
• Low noise levels and reliable continuous operation
• Compatibility with HC automatic control systems
• Suitable for water temperatures up to 120°C

Technical Specifications:

• Product code: WHS3-3S-1791
• Nominal heating power [kW]: 36.9 / 20.8 / 17.8
• Heating power range [kW]: 2.92 – 48.8
• Maximum air flow [m³/h]: 1800 / 850 / 700
• Maximum isothermal range [m]: 11
• Number of heat exchanger rows: 3
• Water capacity [dm³]: 1.9
• Maximum fluid temperature [°C]: 120
• Maximum fluid pressure [MPa]: 1.6
• Connection diameter [inches]: 3/4
• Power supply [V/Hz]: 230 / 50
• Nominal motor current [A]: 0.58 / 0.34 / 0.30
• Motor speed [rpm]: 1400 / 1100 / 850
• Motor power [W]: 124 / 85 / 75
• Motor protection class: IP54
• Net weight [kg]: 20
• Noise level [dB]: 53 / 47 / 45

The S3-3S / WHS3-3S-1789 model offers reliable and economical heating for small industrial or commercial spaces.