The NAD v15 is an advanced heating and cooling buffer storage tank designed for heat pump systems, available in capacities from 200 to 2000 litres with specialized heating, cooling and combined insulation options.
The Drazice NAD v15 series of heating and cooling water accumulation tanks is engineered specifically to ensure optimum hydraulic balancing and energy storage in modern heat pump installations across both heating and cooling operating modes.
By buffering the thermal energy, it prevents frequent compressor cycling, extending heat pump life and maximizing system efficiency. With seven capacity sizes ranging from 200 to 2000 litres, it covers residential as well as large-scale commercial and industrial applications.
Key Features & Advantages
Dual Heating & Cooling Application: Engineered for heating and cooling circuits with reversible heat pumps.
Comprehensive Capacity Range: Available in 200, 300, 500, 750, 1000, 1500 and 2000 litres.
Customized Insulation Concepts:
Models 200, 300 and 500 L: Non-removable factory-applied high-density PUR foam insulation (50–70 mm, ErP Classes B and C).
Models 750 – 2000 L: Three tailored insulation choices: Neodul LB PP for heating, moisture-sealed CELLA COOL for cooling (condensation prevention), or a combined heating/cooling set.
Auxiliary Electric Heating Option: Multiple 6/4" threaded sockets accommodate TJ series screw-in electric heating elements (up to 3 × 9 kW depending on model size).
Versatile Hydraulic Connections: Numerous 1½" and 2" connection nozzles and 15×2 immersion sleeves for temperature sensors.
Operating Parameters: Maximum operating temperature 90°C, maximum operating pressure 3 bar.
Capacities & Specifications
NAD 200 v15: 200 L capacity, 50 mm PUR insulation (ErP Class B, 53 W standing loss).
NAD 300 v15: 320 L capacity, 50 mm PUR insulation (ErP Class C, 80 W standing loss).
NAD 500 v15: 475 L capacity, 70 mm PUR insulation (ErP Class B, 68 W standing loss).
NAD 750 v15: 772 L capacity, 80 mm insulation (Heating: Neodul LB PP / Cooling: Cella Cool).
NAD 1000 v15: 999 L capacity, 80 mm insulation (Heating: Neodul LB PP / Cooling: Cella Cool).
NAD 1500 v15: 1490 L capacity, 100 mm insulation (Heating: Neodul LB PP / Cooling: Cella Cool).
NAD 2000 v15: 2007 L capacity, 100 mm insulation (Heating: Neodul LB PP / Cooling: Cella Cool).
