Systemair WQH 20 BLN

Technical features

• 14 sizes
• Cooling capacity from 21 to 185 [kW]
• Heating capacity from 24 to 212 [kW]
• Acoustic versions : BLN (Basic Low Noise), ELN (Extra Low Noise)
• Two frames: F1 (size from 20 to 45), F2 (size from 50 to 190)
• Single refrigerant circuit
• One scroll compressor (size from 20 to 45), two scroll compressors (size from 50 to 190)
• Brazed plates heat exchangers
• Thermostatic expansion valve (Electronic expansion valve standard for sizes 170 to 190)
• User-friendly microprocessor based control
• Power supply 400 [V] / 3 [pH] / 50 [Hz]

Standard features

• Double set-point
• Dynamic set point (Climatic, 4-20 [mA], 0-10 [V], 0-5 [V], 0-1 [V])
• Sequence phase control
• Rubber pad
• Water differential pressure switch
• Control circuit transformer

Factory installed options

• Modbus protocol kit for BMS
• Compressor soft-starter
• Power factor correction capacitors
• Electronic expansion valve (standard for sizes 170 and 190)
• Compressors overload protection (only for sizes 50 to 190)
• Automatic circuit breakers (only for sizes 50 to 190, standard for sizes 20 to 45)
• Nitrogen charge
• Condensing control kit
• Electric heater wiring kit
• Additional heating device wiring kit
• Mechanical gauges kit
• Compressor jackets
• Desuperheater (only for sizes 50 to 190)
• Hydraulic options (pump/s)

Field installed accessories

• Remote ON/OFF control
• Remote keyboard panel
• Sequencer, up to max four units
• Condensing control kit
• Water temperature sensor for DHW tank
• Outdoor air sensor for weather compensation
• Electric heater wiring kit
• Additional heating device wiring kit
• Pressostatic water valve for well application (only for sizes 20 to 45)
• Compressor jacket
• Water flow switch
• Water pressure switch
• Victaulic to threaded pipe connection
• 3-way valve for DHW production
• Spring type anti-vibration mounts (only for sizes 50 to 190)
• Water filter
• Valves IN/OUT (only for sizes 20 to 45)