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WaterMaster 70 X Evo

Condensing domestic hot water heater

  • Available in Natural gas and LPG
  • TANK-IN-TANK TECHNOLOGY
Short Energy Label DHW
  • label_energy_GAS
  • Hot Water Heater
  • Standard
  • Concentric
  • Floor installation
# GTIN : 5400891527948
# P/N : 052794
Label 2
Label 4
  • 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. Insulation
  9. Condensate recovery dish + NTC5 sensor (flue gas)
  10. High efficiency circulator pump
  11. NTC2 sensor (primary return)
  12. Electrical panel (with spare fuses at the back)
  13. ACVMax Touch Control panel
  14. On-Off switch
  15. DHW tank dry well (Dip tube with temperature sensor)
  16. Automatic air vent
  17. Gas pipe
  18. NTC1 sensor (primary supply)
  19. Gas valve
  20. DHW safety valve / (T&P relief valve - UK only)
  21. Modulating air/gas premix burner with fan
  22. Air inlet
  23. DHW outlet
  24. DHW recirculation tube

Constructive characteristics

WaterMaster 25 X Evo WaterMaster 45 X Evo WaterMaster 70 X Evo
Capacity (total) L 400 400 505 L
Capacity (primary) L 180 180 205 L
Capacity (domestic hot water) L 220 220 300 L
Chimney: Max pressure drop in flue pipe Pa 130 130 110 Pa
Chimney: max length of concentric flue pipe m 20 20 20 m
Chimney connection Ømm 80/125 80/125 100/150 Ømm
Connection - heating Ø" 1 F 1 F 1 ½ F Ø"
Connection - DHW Ø" 6/4 M 6/4 M 1 ½ M Ø"
Connection gas Ø" 3/4 M 3/4 M 3/4 M Ø"
Connection - re-circulation / safety valve Ø" - - 1 ½ M / 1 F Ø"
Connection - safety valve Ø" 1/2M 1/2M 1/2 M Ø"
Max operating temperature °C 87 87 87 °C
Max service pressure heating (primary) bar 3 3 3 bar
Max service pressure (DHW) bar 8,6 8,6 8,6 bar
Height when tilted mm 1980 1980 2376 mm
Weight (empty) kg 270 270 380 kg

Heating characteristics

WaterMaster 25 X Evo WaterMaster 45 X Evo WaterMaster 70 X Evo
Pre-heating time from 10 to 80°C (Heat source: boiler) min 61 40 43 min
Reheat time from 40 to 90°C min 68 35 40 min
Reheat time from 40 to 80°C min 46 26 31 min
Heating time from 10 to 90°C min 83 49 52 min

Combustion

WaterMaster 25 X Evo WaterMaster 45 X Evo WaterMaster 70 X Evo
Input max (heating) HCV kW 27,8 50,6 77,6 kW
Input max (heating) LCV kW 25,0 45,0 69,9 kW
Combustion efficiency % 98,2 97,9 98,1 %
Efficiency DHW mode ΔT 30K % 105,4 103,1 103,9 %
Efficiency DHW mode (EN89) % 108,7 108,9 107,9 %
CO emissions max output ppm 27 63 56 ppm
CO emissions min output ppm 6 4 2 ppm
Mass rate of combustion products (gas) kg/h 42 76 114 kg/h
NOx weighted (GCV) (EN15502) mg/kWh 21,5 30,2 30,3 mg/kWh
NOx class (EN15502) 6 6 6
Gas flow rate (min output) m³/h 0,5 0,9 2,6 m³/h

Domestic hot water performance

WaterMaster 25 X Evo WaterMaster 45 X Evo WaterMaster 70 X Evo
Peak flow at 40°C L/10’ 568 617 951 L/10’
Peak flow 1st hour at 40°C L/60’ 1207 1793 2578 L/60’
Continuous flow at 40°C L/h 788 1390 2087 L/h
Peak flow at 45°C L/10’ 477 501 816 L/10’
Peak flow 1st hour at 45°C L/60’ 1035 1537 2210 L/60’
Continuous flow at 45°C L/h 676 1192 1789 L/h
Peak flow at 60°C L/10’ 327 332 571 L/10’
Peak flow 1st hour at 60°C L/60’ 724 1076 1547 L/60’
Continuous flow at 60°C L/h 473 820 1252 L/h

Electrical Characteristics

WaterMaster 25 X Evo WaterMaster 45 X Evo WaterMaster 70 X Evo
Voltage V 230 230 230 V
Frequency Hz 50 50 50 Hz
Protection IP 20 20 20
Electrical consumption W 95 126 280 W
Electrical power requirements A 0,7 0,85 1 A

Eco Design Fields

WaterMaster 25 X Evo WaterMaster 45 X Evo WaterMaster 70 X Evo
Declared load profile XXL XXL XXL
Water heating energy efficiency class A A A
Water heating energy efficiency [ηwh] (EU 814/2013 Art 2 (15) Ann.IV-3) % 87,5 87,9 85 %
Sound power level indoors LWA dB 60 59 60 dB
Energy Label
Product Fiche

Technical brochure

ACVMax Touch - Installer's handboek for EVO appliances (2022 ->)

8.83MB – en

Evo Range Gas Conversion Procedure

2.28MB – fr en pl it de es ru

Filling kit 788498 for WaterMaster (multilanguage version)

485.99kB – fr en nl pl it de es ru

Safety Instructions - HeatMaster C/TC Evo - WaterMaster (X) Evo

2.85MB

Technico-commercial manual - HeatMaster TC EVO - WaterMaster EVO (X)

4.91MB

WaterMaster 25-35-45-70-85-120-25X-45X-70X Evo : Installation, operation and maintenance instructions

10.07MB – en

WaterMaster 25-35-45-70-85-120-25X-45X-70X Evo : Инструкции по монтажу, эксплуатации и техническому обслуживанию

10.23MB – ru

Ecodesign

Energy Label

Product Fiche

BIM Files

BIM Files

Pictures

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