High Efficiency Boilers

Delta

Delta Pro S 55

Floor standing combination boiler. Offers exceptional heating and hot water performance.

  • TANK-IN-TANK TECHNOLOGY
  • Available in Gas, Oil and Propane

# 04633401

  • Fuel
  • Boilers
  • DHW Production
  • Standard
  • Concentric
  • Floor installation
  • High performance, low cost combined boiler and water heater
  • Stainless steel Tank-in-Tank design
  • Choice of Burner - Low NOx premix burner, Pressure jet natural gas or LPG or Pressure jet 28 sec or 35 sec oil
  • Anti-Legionellae: hot water stored at consistently high temperature
  • Fully insulated with rigid polyurethane foam
  • Stove enameled casing
  • Control panel including thermostats, thermometer, indicators and on/off switch
  • 26kW to 55kW output
  • Can be used in battery formation for high output installations
  • Primary heating sealed system kits also available
  • Non Ecodesign compliant
  1. Flue reduction collar with easy access for servicing.
  2. Rigid polyurethane foam insulation.
  3. PVCC dip tube with cold water diffuser.
  4. Burner (not included)
  5. Burner chamber plate with refractory ceramic fibre insulation.
  6. 95°C cut-off thermostat and manual reset safety thermostat pocket.
  7. Flue tubes.
  8. Turbulators.
  9. Stainless steel "Tank-in-Tank" hot water cylinder.
  10. Primary circuit (heating).
  11. Combustion chamber.
  12. Boiler base.
  13. Heating flow.
  14. Heating return.
  15. Domestic hot water outlet.
  16. Domestic cold water supply.
  17. Primary hot water safety valve [7 bar]
  18. Primary heating safety valve [bar 3]
  19. Flue connection Ø 100 mm
  20. Drain down valve

Constructive characteristics

Capacity (total) 151 L
Capacity (primary) 68 L
Capacity (domestic hot water) 83 L
Chimney connection 100 Ømm
Connection - heating 1 F Ø"
Connection - DHW 3/4 M Ø"
Connection - re-circulation / safety valve 3/4 M Ø"
Max operating temperature 90 °C
Water pressure drop boiler at Δt = 20°C 37 mbar
Max service pressure heating (primary) 3 bar
Max service pressure (DHW) 8,6 bar
Pressure drop flue gas 0,45 mbar
Weight (empty) 200 kg

Heating characteristics

Heating time from 10 to 60°C - 6 kW (3 kW) 16 min

Combustion

Input max (heating) HCV 65,2 kW
Input max (heating) LCV 58,7 kW
Combustion efficiency 93 %
Efficiency at 30% load (EN677) 94,8 %
Efficiency (max output) 80/60°C 91,8 %
CO emissions max output 1 ppm
Mass rate of combustion products (gas) 102 kg/h
NOx class (EN483) 5
Output power max (80/60°C) 56 kW
Output power min (80/60°C) 16,7 kW

Eco Design Fields

NOx weighted (GCV) 66,6 mg/kWh

Domestic hot water performance

Peak flow at 40°C 362 L/10’
Peak flow 1st hour at 40°C 1533 L/60’
Continuous flow at 40°C 1405 L/h

Electrical Characteristics

Voltage 230 V
Frequency 50 Hz
Protection IP 30
Electrical consumption 83 W
Electrical power requirements 0,4 A
Dimensions A 1760 mm
Dimensions B 1586 mm
Dimensions C 390 mm
Dimensions D 1645 mm
Dimensions E 1645 mm
Dimensions F 1600 mm
    • Technical brochure

    • Delta

    • 4.84 MB – ru

    • Technical brochure

    • Delta Pro S & Pro Pack - Installation, operations and maintenance instructions

    • 4.82 MB – en

    • Technical brochure

    • Delta Pro - Concentric Kit

    • 1,010 KB –

    • Marketing brochure

    • ACV Products Overview 2017

    • 3.96 MB – en

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