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WaterMaster 85 Evo 2

Direct gas fired condensing water heater

  • 5-Year Warranty
  • Tank-in-Tank technology
  • Nat Gas and LPG
  • label_energy_GAS
  • Hot Water Heater
  • Standard
  • Concentric
  • Floor installation
# GTIN : 5400891542507
# P/N : 554250
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  • Can deliver large peak and continuous volumes of hot water
  • Operates in most efficient mode (fully condensing)
  • Reduces legionella risk due to temperature stored at >60°C
  • Low NOx levels
  • Small footprint allows installation in tight plantrooms
  • Low maintenance with no anode protection required
  • Compliant with latest Ecodesign regulations for DHW
  • Corrosion-resistant stainless steel heat exchanger and tank reduces maintenance and increases system lifespan
  • Suitable for vented or unvented systems (optional unvented kit required)
  • Easy to use standardised controls using ACVMax control system
  • Supplied with LPG kit for simple on-site conversion
  • Improved access for service and maintenance
  • Supplied with factory fitted T&P relief valve for ease of installation
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 (primary + DHW)
  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 pressure switch and 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

Constructive characteristics
WaterMaster 70 Evo 2 WaterMaster 85 Evo 2 WaterMaster 120 Evo 2
Capacity (total) L 315 315 315 L
Capacity (primary) L 125 125 125 L
Capacity (domestic hot water) L 190 190 190 L
Chimney: Max pressure drop in flue pipe Pa 150 150 170 Pa
Chimney: max length of concentric flue pipe m 22 22 21 m
Chimney connection Ømm 100/150 100/150 100/150 Ømm
Connection - heating Ø" 1 ½ F 1 ½ F 1 ½ F Ø"
Connection - DHW Ø" 1 M 1 M 1 M Ø"
Connection gas Ø" 3/4 M 3/4 M 3/4 M Ø"
Connection - re-circulation / safety valve Ø" na / 1 F na / 1 F na / 1 F Ø"
Connection - safety valve Ø" 1/2 M 1/2 M 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 2277 2277 2277 mm
Weight (empty) kg 298 298 299 kg

Heating characteristics
WaterMaster 70 Evo 2 WaterMaster 85 Evo 2 WaterMaster 120 Evo 2
Pre-heating time from 10 to 80°C (Heat source: boiler) min 27 24 23 min
Reheat time from 40 to 90°C min 37 36 30 min
Reheat time from 40 to 80°C min 18 16 15 min
Heating time from 10 to 90°C min 47 43 38 min

Combustion
WaterMaster 70 Evo 2 WaterMaster 85 Evo 2 WaterMaster 120 Evo 2
Input max (heating) HCV kW 77.6 95.3 127.7 kW
Input max (heating) LCV kW 69.9 85 115 kW
Combustion efficiency % 98.1 98 97.5 %
Efficiency DHW mode ΔT 30K % 103.9 103.9 102.2 %
Efficiency DHW mode (EN89) % 107.7 107.7 107.7 %
CO emissions max output ppm 56 75 50 ppm
CO emissions min output ppm 2 6 8 ppm
Mass rate of combustion products (gas) kg/h 114 138 187 kg/h
NOx weighted (GCV) (EN15502) mg/kWh 30.3 27 37.4 mg/kWh
NOx class (EN15502) 6 6 6
Gas flow rate (min output) m³/h 2.23 2.18 2.40 m³/h

Domestic hot water performance
WaterMaster 70 Evo 2 WaterMaster 85 Evo 2 WaterMaster 120 Evo 2
Peak flow at 40°C L/10’ 716 783 900 L/10’
Peak flow 1st hour at 40°C L/60’ 2455 2895 3620 L/60’
Continuous flow at 40°C L/h 2087 2534 3402 L/h
Peak flow at 45°C L/10’ 592 646 676 L/10’
Peak flow 1st hour at 45°C L/60’ 2083 2456 3098 L/60’
Continuous flow at 45°C L/h 1789 2172 2928 L/h
Peak flow at 60°C L/10’ 348 371 440 L/10’
Peak flow 1st hour at 60°C L/60’ 1391 1638 1847 L/60’
Continuous flow at 60°C L/h 1252 1520 1754 L/h

Electrical Characteristics
WaterMaster 70 Evo 2 WaterMaster 85 Evo 2 WaterMaster 120 Evo 2
Voltage V 230 230 230 V
Frequency Hz 50 50 50 Hz
Protection IP 20 20 20
Electrical consumption W 225 266 352 W
Electrical power requirements A 1.5 1.9 2.3 A

Eco Design Fields
WaterMaster 70 Evo 2 WaterMaster 85 Evo 2 WaterMaster 120 Evo 2
Declared load profile XXL XXL XXL
Water heating energy efficiency class A A -
Water heating energy efficiency [ηwh] (EU 814/2013 Art 2 (15) Ann.IV-3) % 88.5 88.5 88.1 %
Sound power level indoors LWA dB 60 61 62 dB
Product Fiche

Technical brochure

ACV WaterMaster Evo 2 85 Data Sheet

523.20kB – en

Evo Range Gas Conversion Procedure

2.28MB – fr en pl it de es ru

Installer’s Handbook for Evo 2 Appliances

9.30MB – en

WaterMaster Evo 2 – Installation, Operation & Maintenance (EN + ML)

8.79MB – en

Ecodesign

Product Fiche

BIM Files

BIM

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