Water Heaters

WaterMaster

WaterMaster 70

Condensing domestic hot water heater

# A1002077

  • Gas
  • Hot Water Heater
  • Standard
  • Concentric
  • Floor installation
  • Certified EN89 - Ecodesign Lot 2 (EN 812/2013 - EN 814/2013)
  • Equipped with ACVMax burner and modbus controls
  • Condenses in hot water mode
  • Delivers an exceptional peak and continuous volumes of hot water
  • Stainless Steel domestic hot water tank - no anode protection required
  • Space saving footprint - reduced plant-room space requirement
  • Stainless steel heat exchanger reduces maintenance and increases system lifespan
  • Multiple units can be grouped in cascade for larger applications or back up
  • Vented or unvented use - Mains systempak available
  • Convertible to propane TANK-IN-TANK technology
  • 5 years warranty

Legend

  1. ACVMax Control panel
  2. NTC sensor (primary circuit)
  3. High efficiency circulator pump
  4. Condensate recovery dish
  5. Electrical panel (with spare fuses at the back)
  6. “Tank-in-Tank” hot water production tank
  7. Flue gas exhaust tube
  8. Indirect water pre-heater
  9. Primary circuit
  10. Pressure sensor

Characteristics

Capacity (total) 315 L
Heating surface DHW tank 3,4 + 0,9
Capacity (domestic hot water) 190 L
Connection - DHW 1 M inches
Pressure drop primary 9,3 mbar
Max operating temperature (primary) 87 °C
Max service pressure (DHW) 8,6 bar
Max service pressure heating (primary) 3 bar
Weight (empty) 284 kg

Hot water performances

Peak flow at 40°C 716 L/10’
Peak flow 1st hour at 40°C 2455 L/60’
Continuous flow at 40°C 2087 L/h
Peak flow 1st hour at 45°C 2083 L/60’
Continuous flow at 45°C 1789 L/h
Peak flow at 60°C 348 L/10’
Peak flow 1st hour at 60°C 1391 L/60’
Continuous flow at 60°C 1252 L/h
Pre-heating time from 10 to 80°C (Heat source: boiler) 27 min
Input max (heating) LCV 69,9 kW
Input max (heating) HCV 77,7 kW
Connection - heating 6/4 F Ø inches
Connection - gas 3/4 M Ø inches
Water pressure drop boiler at Δt = 20°C 9 mbar
Gas flow rate (max output) 7,4 m³/h
Gas flow rate G25 (max output) 8,6 m³/h
Chimney connection 100/150 Ø mm
Operating voltage 230 V
Protection IP 30
Electrical consumption 220 W
NOx emissions max output 52 mg/kWh
Dim. - Depth (w/o conn.) 753 mm
Dim. - Height (w/o conn.) 2170 mm
Dim. - Width or Diameter (w/o conn.) 690 mm
Dim. - Depth (with conn.) 790 mm
Dim. - Height (with conn.) 2170 mm
Dim. - Width or Diameter (with conn.) 690 mm

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