HIU ultra compact single dwelling unit substations

RANGE AND PERFORMANCES

• 12 models for heating and DHW use for networks with hot water and overheated water.
• Base version wall-mounted, wall-mounted version, design version.
• Heating thermal power from 18 to 40 kW.
• Instantaneous DHW production from 13 to 22 liters/minute

MANAGEMENT

• Setting and regulation of heating water and DHW temperature via configurable PID controller.
• Operator panel with remote-controllable chronothermostat function up to 30 meters away with integrated ambient temperature sensor.
• Prepared for remote reading and remote control via unified standard Meter-bus protocol or other unified protocol.
• Dedicated software for easy-to-use individual metering and remote control. Integration with existing or superior remote control systems.
• 6 implemented limits: limits for secondary flow and primary return temperature, flow limit, and power limit for both heating and DHW functions.

SPECIAL FUNCTIONS AND SERVICES

• Legionella prevention function.
• Anti-scale function

CONSTRUCTION

• Extremely compact dimensions (500 mm width x 800 mm height x 160 mm depth).
• Powder-coated carbon steel frame.
• Robust mechanical construction without the use of hydraulic groups in plastic materials.
• Primary circuit design temperature: 135°C
• Primary circuit design pressure: PN25
• Secondary circuit and DHW design pressure: PN10
• Nominal thermal conditions for primary circuit: 90/65°C
• Nominal thermal conditions for secondary circuit: 80/60°C
• CE/PED approval for all models obtained with Ispesl certification body, with safety redundancy beyond what is required by regulations.
• Non-return valve on the primary circuit.
• Manual reset lockout thermostat.
• Automatic reset control thermostat.
• Expansion vessel.
• Stainless steel mesh filter on the primary, secondary, and DHW circuits.
• Ultrasound static heat meter approved EN 1434/MID.
• Main suppliers of components used by Amarc DHS on its products: ALFA LAVAL (heat exchangers) | DANFOSS (control valves, actuators, regulators) SIEMENS (heat meters, control valves, actuators, regulators) | KAMSTRUP (heat meters) | BRANDONI (intercept valves, non-return valves) | NAVAL OY (ball valves) | IVR (intercept valves) | CALEFFI/WATTS (safety valves) | WILO (pumps) | HONEYWELL (actuators, two-way and three-way control valves).