Systemair VLH 904

Technical features

• 7 sizes
• Cooling capacity from 149 to 300 [kW]
• Heating capacity from 170 to 337 [kW]
• Fans versions: STD (Standard), HSE (High Seasonal Efficiency), HT (High Temperature), HPF (High Pressure Fans)
• Acoustic versions: BLN (Basic Low Noise), LN (Low Noise), ELN (Extra Low Noise)
• Two refrigerant circuits
• 4 Scroll compressors
• Finned tubes coils

Standard features

• Phase sequence control
• Electronic expansion valve
• Control circuit transformer
• Control data logger
• Water differential flow switch
• Antifreeze electrical heater
• Modbus protocol kit for BMS

Factory installed options

• Lonwork protocol kit for BMS
• Bacnet protocol kit for BMS
• Compressor soft-starter
• Fan speed control for low ambient operation
• Double set-point
• Power factor correction capacitors
• Compressor overload protection
• Automatic circuit breaker
• HP & LP gauges
• E-coating for Al/Cu coils
• Condenser coils with copper fins
• Blue fins treatment for Al/Cu coils
• Chiller grilles
• Compressor jackets
• Desuperheater
• On board hydro kits 1P/2P with/without tank

Field installed accessories

• Remote ON/OFF control
• Remote keyboard panel
• Sequencer, up to max four units
• Anti-vibration spring
• Water flow switch
• Water pressure switch
• Water filter
• Remote hydro kits with buffer tank, 1 or 2 low or high pressure pump(s), relevant accessories and with or without antifreeze heater