Water Heaters

WaterMaster

Portrait

WaterMaster 120

Condensing domestic hot water heater

  • Available in Natural gas and LPG
  • TANK-IN-TANK TECHNOLOGY

# GTIN : 5400891032374
# P/N : A1002079

  • 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 volume 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
Schematic
  1. Concentric flue gas/air inlet box
  2. Flue gas exhaust tube
  3. Combustion chamber
  4. Stainless steel heat exchanger
  5. Stainless steel “Tank-in-Tank” hot water production tank
  6. Primary circuit separation disc
  7. Indirect water pre-heater
  8. Condensate recovery dish
  9. Insulation
  10. High efficiency circulator pump
  11. NTC2 sensor (CH return)
  12. Pressure sensor
  13. Electrical panel (with spare fuses at the back)
  14. ACVMax Control panel
  15. DHW tank dry well (Dip tube with temperature sensor)
  16. Automatic air vent
  17. Gas pressure switch
  18. NTC1 sensor (CH supply)
  19. Gas valve
  20. DHW safety valve / (T and P relief valve)
  21. Modulating air/gas premix burner with fan
  22. Air inlet

Constructive characteristics

Capacity (total) 315 L
Capacity (primary) 125 L
Capacity (domestic hot water) 190 L
Chimney: Max pressure drop in flue pipe 240 Pa
Chimney: max length of concentric flue pipe 21 m
Chimney connection 100/150 Ømm
Connection - heating 1 ½ F Ø"
Connection - DHW 1 M Ø"
Connection gas 3/4 M Ø"
Connection - safety valve 1/2 M Ø"
Max operating temperature 87 °C
Water pressure drop boiler at Δt = 20°C 27 mbar
Max service pressure heating (primary) 3 bar
Max service pressure (DHW) 8,6 bar
Height when tilted 2277 mm
Weight (empty) 299 kg

Heating characteristics

Pre-heating time from 10 to 80°C (Heat source: boiler) 23 min
Reheat time from 40 to 90°C 30 min
Reheat time from 40 to 80°C 15 min
Heating time from 10 to 90°C 38 min

Combustion

Input max (heating) HCV 127,8 kW
Input max (heating) LCV 115 kW
Combustion efficiency 97,5 %
Efficiency DHW mode ΔT 30K 102,2 %
Efficiency DHW mode (EN89) 107,7 %
CO emissions max output 119 ppm
CO emissions min output 8 ppm
Mass rate of combustion products (gas) 183 kg/h
NOx weighted (GCV) (EN15502) 28,9 mg/kWh
NOx class (EN15502) 6
Gas flow rate (min output) 2,5 m³/h

Domestic hot water performance

Peak flow at 40°C 900 L/10’
Peak flow 1st hour at 40°C 3620 L/60’
Continuous flow at 40°C 3402 L/h
Peak flow at 45°C 676 L/10’
Peak flow 1st hour at 45°C 3098 L/60’
Continuous flow at 45°C 2928 L/h
Peak flow at 60°C 440 L/10’
Peak flow 1st hour at 60°C 1847 L/60’
Continuous flow at 60°C 1754 L/h

Electrical Characteristics

Voltage 230 V
Frequency 50 Hz
Protection IP 30
Electrical consumption 380 W
Electrical power requirements 1,7 A
    • Marketing brochure

    • WaterMaster - EN 89 Certified Storage Water Heater

    • 691.85kB – en en

    • Technical brochure

    • ACVMax - Installers handbook for heating systems controlled with ACVMax (3.06-3.16)

    • 21.45MB – en

    • Technical brochure

    • ACVMax - Installers handbook for heating systems controlled with ACVMax (Software version 4.04 or more)

    • 25.98MB – en

    • Technical brochure

    • WaterMaster 25 / 35 / 45 / 70 / 85 / 120 - Installation, Operation and Maintenance Instructions for the Installer and the User

    • 10.58MB – en

    • Technical brochure

    • WaterMaster 25 / 35 / 45 / 70 / 85 / 120 - Инструкция по установке, эксплуатации и сервисному oбслуживанию, для пользователя и сервисного специалиста

    • 9.43MB – ru

Eco Design Fields

Declared load profile XXL
Water heating energy efficiency [ηwh] (EU 814/2013 Art 2 (15) Ann.IV-3) 85 %
Sound power level indoors LWA 62 dB
    • Product Fiche

    • WaterMaster 120

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