ACV - excellence in hot water

Discover our solutions > HR 321
HR 321
Available documents
pdf HR-Jumbo : Sales brochure
 
- Download centre
Presentation
 
N/A Floor installation Hot water heater [ key ]
 
  • Stainless steel hot water indirect water heater. A Duplex version for highly aggressive water (DIN 1.4462) is also available
  • Rigid polyurethane foam insulation
  • Control panel with thermometer and thermostat
  • Elegant lacquered steel covering with slightly structured red paint
  • Inlet and outlet (primary) connection at the back
  • 2 models of 318 and 606  litres
  • Max. absorbed boiler output: from 76 to 88 kW


Main characteristics
 
Capacity (primary) (L) : 55
Capacity (total) (L) : 318
Heating surface DHW tank (m²) : 2,65
Pressure drop (primary) (mbar) : 81
Primary flow (L/h) : 6900
Connection - primary (female) (Ø) : 2"
Connection - DHW (male) (Ø) : 1"1/2
Connection - re-circulation / safety valve (Ø) : 1"1/2 (M)
Peak flow at 40 °C (L/10’) : 922
Peak flow 1st hour at 40 °C (L/60') : 2732
Continuous flow at 40°C (L/h) : 2172
Peak flow at 45 °C (L/10’) : 790
Peak flow 1st hour at 45 °C (L/60') : 2342
Continuous flow at 45 °C (L/h) : 1862
Peak flow at 60 °C (L/10’) : 504
Peak flow 1st hour at 60 °C (L/60’) : 1402
Continuous flow at 60 °C (L/h) : 1077
Coefficient (NL) () : 18
Max. absorbed heat (Heat source: boiler) (kW) : 76
Max. operating temperature (°C) : 90
Max.service pressure heating (primary) (bar) : 4
Max.service pressure (DHW) (bar) : 10
Dim. - Width or Diameter (w/o conn.) (mm) : 630
Dim. - Depth (w/o conn.) (mm) : 630
Dim. - Height (w/o conn.) (mm) : 1595
Weight (empty) (Kg) : 160
 


Design characteristics
 

Design characteristics
Legend 
  1. Duplex DIN 1.4462 stainless steel inner tank
  2. Steel outer tank
  3. Rigid polyurethane foam insulation
  4. Heating fluid inlet (primary)
  5. Heating fluid outlet (primary)
  6. Cold water inlet (secondary)
  7. Domestic hot water outlet (secondary)
  8. Control thermostat
  9. Control thermometer
  10. Control thermostat bulb
  11. Bulb for control thermometer
  12. Air vent
  13. Metal casing
  14. DHW recirculation loop
 
 
Technical specifications (*)
 

Characteristics Value
 Capacity (primary)  55 L
 Capacity (total)  318 L
 Heating surface DHW tank  2,65 m²
 Pressure drop (primary)  81 mbar
 Primary flow  6900 L/h
 Connection - primary (female)  2" Ø
 Connection - DHW (male)  1"1/2 Ø
 Connection - re-circulation / safety valve  1"1/2 (M) Ø
 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 at 45 °C  790 L/10’
 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
 Coefficient (NL)  18
 Max. absorbed heat (Heat source: boiler)  76 kW
 Max. operating temperature  90 °C
 Max.service pressure heating (primary)  4 bar
 Max.service pressure (DHW)  10 bar
 Dim. - Width or Diameter (w/o conn.)  630 mm
 Dim. - Depth (w/o conn.)  630 mm
 Dim. - Height (w/o conn.)  1595 mm
 Weight (empty)  160 Kg

Output data
 

Characteristics Value
 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 at 45 °C  790 L/10’
 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
 Coefficient (NL)  18
 Max. absorbed heat (Heat source: boiler)  76 kW

 
(*)
  • The product range offered can vary according to country. Please consult your distributor.
  • All values indicated on this site are provided for information only. Please refer to our legal notice.
  • The following operating conditions were used to generate hot water output data for our products:
    • Supply water: 10°C
    • Primary water: 80°C (boilers), 85°C (water heaters) or 90°C (HeatMaster)
  • Operating conditions
    Cold water: 10°C
    Delta T° (outlet) : 30°C
    Data provided are indicative only. Please read the complete disclaimer.
Disclaimer