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HeatMaster 70 TC Evo

Combined gas fired condensing boiler and water heater with stainless steel heat exchanger.

  • 5-Year Warranty
  • Tank-in-Tank technology
  • Nat Gas and LPG
Short Energy Label Heating
Short Energy Label DHW
  • label_energy_GAS
  • Boilers
  • DHW Production
  • Standard
  • Concentric
  • Floor installation
# GTIN : 5400891528433
# P/N : XB550004
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Label 1
Label 4
  • Heating and hot water from one unit saves space, reduces energy use and speeds up installation
  • Operates in most efficient mode (condensing) for both heating and hot water
  • Low maintenance with no anode protection required
  • Reduces legionella risk due to temperature stored at > 60°C
  • Corrosion-resistant stainless steel heat exchanger and tank reduces maintenance and increases system lifespan
  • Suited to high demand and critical hot water premises such as hotels and hospitals
  • Easy to use standardised controls using ACVMax control system
  • Combine with Prestige® heat only boilers or Smart cylinder for highly efficient heating and hot water performance all from one manufacturer
  • Suitable for vented or unvented systems (optional unvented kit required)
  • Supplied with LPG kit for simple on-site conversion
  • Improved access for service and maintenance
  • Supplied with factory fitted T&P relief valve
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 (CH 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
  18. NTC1 sensor (CH 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

Constructive characteristics
HeatMaster 70 TC Evo HeatMaster 85 TC Evo HeatMaster 120 TC Evo
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 - safety valve Ø" 1/2 M 1/2 M 1/2 M Ø"
Max operating temperature °C 87 87 87 °C
Water pressure drop boiler at Δt = 20°C mbar 9 14 27 mbar
Max service pressure heating (primary) bar 3 3 3 bar
Max service pressure (DHW) bar 8,6 8,6 8,6 bar
Pressure drop (primary - ΔT10K) mbar 9,3 - - mbar
Height when tilted mm 2270 2270 2270 mm
Weight (empty) kg 298 298 299 kg

Heating characteristics
HeatMaster 70 TC Evo HeatMaster 85 TC Evo HeatMaster 120 TC Evo
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
HeatMaster 70 TC Evo HeatMaster 85 TC Evo HeatMaster 120 TC Evo
Input max (heating) HCV kW 77,6 94,4 127,7 kW
Input max (heating) LCV kW 69,9 85,0 115,0 kW
Combustion efficiency % 98,1 98 97,5 %
Efficiency at 30% load (EN15502-1) % 109,0 108 108 %
Efficiency at 100% load (50/30°C) % 105,8 105,8 105,8 %
Efficiency (max output) 80/60°C % 97,3 97 97 %
Efficiency (min output) 80/60°C % 97,3 97,5 97,1 %
Efficiency DHW mode ΔT 30K % 103,9 103,9 102,2 %
CO emissions max output ppm 34 51 50 ppm
CO emissions min output ppm 7 6 4 ppm
Mass rate of combustion products (gas) kg/h 114 111 183 kg/h
NOx weighted (GCV) (EN15502) mg/kWh 33,1 29,3 39,8 mg/kWh
NOx class (EN15502) 6 6 6
Output power max (80/60°C) kW 68,0 82,9 111,7 kW
Output power min (80/60°C) kW 20,9 20,5 22,9 kW
Output power max (50/30°C) kW 74,0 89,9 121,7 kW
Gas flow rate (min output) m³/h 2,2 2,1 2,45 m³/h

Domestic hot water performance
HeatMaster 70 TC Evo HeatMaster 85 TC Evo HeatMaster 120 TC Evo
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
HeatMaster 70 TC Evo HeatMaster 85 TC Evo HeatMaster 120 TC Evo
Voltage V 230 230 230 V
Frequency Hz 50 50 50 Hz
Protection IP 20 20 20
Electrical consumption W 210 266 327 W
Electrical power requirements A 1,4 1,7 2 A

Eco Design Fields
HeatMaster 70 TC Evo HeatMaster 85 TC Evo HeatMaster 120 TC Evo
Space heating energy efficiency class A A A
Seasonal space heating efficiency (35°C) % 93 92 92 %
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) % 85,0 85 85 %
Sound power level indoors LWA dB 60 61 62 dB
Energy Label EU - -
Product Fiche

Technical brochure

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Marketing brochure

ACV Gids voor Ecodesign en energie labelling

977.12kB – nl

Comfort Tank-in-Tank boilers in inox

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Ecodesign

Energy Label EU

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