HR s 320 Duplex

Fast recovery stainless steel tank-in-tank cylinder

# 06510701

  • External heating source
  • Tanks
  • Floor installation
  • Low Heat loss - 100mm polyurethane insulation foam.
  • Outer shell vinyl jacket.
  • Connections to the primary return.
  • Vented or unvented use.
  • Thermostat and thermometer & high limit stat.
  • Can be used in batter formation for higher hot water output.
  • Mains pressure SystemPak available.
  • ***Anti-légionelles : température de stockage > 60°C.
  • ***Vanne de mélange thermostatique recommandée.
  • 5 YEAR WARRANTY (see our terms of sale)


  1. DHW return or temp/pressure relief valve connection.
  2. Manual air vent.
  3. Cold water inlet connection.
  4. Rigid top case.
  5. Stainless steel thermostat pocket.
  6. 100mm flexible polyurethane foam insulation.
  7. Outer shell vinyl jacket.
  8. DHW return connection.
  9. Primary inlet connection.
  10. Internal stainless steel DHW tank.
  11. External Tank (primary) steel.
  12. Primary return connection.


Capacity (total) 318 L
Heating surface DHW tank 2,65
Capacity (domestic hot water) 263 L
Connection - primary 2 F inches
Connection - DHW 6/4 M inches
Connection - re-circulation / safety valve 6/4 M inches
Primary flow (ΔT10K) do not use 6900 L/h
Pressure drop (primary - ΔT10K) ? mbar
Max operating temperature 85 °C
Max operating pressure (DHW) 8,6 bar
Max operating pressure (primary) 4 bar
Weight (empty) 106 kg

Hot water performances

Peak flow at 40°C 922 L/10’
Peak flow 1st hour at 40°C 2732 L/60’
Continuous flow at 40°C 2172 L/h
Peak flow 1st hour at 45°C 2342 L/60’
Continuous flow at 45°C 1862 L/h
Peak flow at 60°C 504 L/10’
Peak flow 1st hour at 60°C 1402 L/60’
Continuous flow at 60°C 1077 L/h
Max absorbed heat (Heat source: boiler) 76 kW
Operating voltage 230 V
Max design pressure (DHW) 10 bar
A 1600 mm
B 559 mm
C 255 mm
D 1285 mm
E 700 mm
Dim. - Height (with conn.) 1600 mm
Dim. - Width or O (w/o insul. and w/o conn.) 558 mm
Dim. - Depth (w/o conn.) 760 mm
Dim. - Height (w/o conn.) 1550 mm
Dim. - Width or Diameter (w/o conn.) 760 mm

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