High performance flat-plate collectors
TopSon F3-1(Q)

TopSon F3-1 and TopSon F3-1Q High performance flat-plate collectors

The new solar rooftop installation sets.

WOLF presents an optimized range of its solar rooftop installation sets for the flat solar collectors TopSon F3-1/F3-1Q and CFK-1. The mounting system is not only quick and easy to install, but also dependably withstands extremely high wind and snow loads.

WOLF mounting system with general building authority approval (DIBt)

  • Safety for end users and skilled tradesmen trough a statically calculated system approved by the DIBt (German Institute for Construction Technology) (approval number: Z-14.4-797)
  • Compliance with building regulations
  • No load transfer via the tiles
  • Quick and simple installation
  • flexibly adaptable to any roof conditions
  • weather-resistant materials 
  • Extremely stable and resilient even with high snow and wind loads

WOLF universal sets:

  • suitable for most applications
  • simple checking of the application limits with the help of the WOLF price list
  • adaption of the mounting system to individual requirements with extensive accessories

Model / Performance
  • TopSon-F3-1
  • TopSon-F3-1Q
  • Key Facts
  • Specification
  • Downloads
  • For solar thermal systems used for DHW heating and central heating backup
  • High performance flat-plate collectors tested to EN ISO 9806 with maximum energy efficiency
  • Certified by Solar Keymark
  • Meet the requirements for the "Blue Angel" certificate of environmental excellence to RAL UZ 73
  • Deep-drawn, highly weather-resistant aluminium collector pan
  • Thermal insulation made from mineral wool, 60 mm thick for minimal cool-down losses, TopSon F3-1/F3-1Q with additional thermal insulation on the sides
  • Absorber with highly selective coating for very high yields;
  • meander (TopSon F3-1/F3-1Q) or harp (CFK-1) design ensures an even flow and effective function
  • Expansion compensators between collectors
  • Safety glass, 3.2 mm (TopSon F3-1/F3-1Q) or 3.0 mm (CFK-1) thick; hail-proof to EN 12975, thermally pre-stressed, TopSon F3-1/F3-1Q with improved transparency
  • EPDM seal, pressed into a single-piece grip moulding
  • With the TopSon F3-1/F3-1Q, up to 5 collectors can be connected on one side; connection either on the right or left
  • With the TopSon F3-1/F3-1Q, glass retaining strip also in grey-black (for special visual requirements)
  • 5 year statutory warranty
technical drawing
Please choose model
High performance flat-plate collectors TopSon F3-1(Q)
Type TopSon F3-1 F3-1Q

General data

Recommended flow rate per collector l/h 30 - 90 30 - 90
Heat transfer medium ANRO ANRO
Solar Keymark registration no. 011-7S260F 011-7S2439F
Optical efficiency eta 0hem* % 70.4 70.7
Heat loss coefficient a1 * W/(m2 K) 3.037 3.152
Heat loss coefficient a2 * W/(m2 K2) 0,014 0.01
Angle of incidence correction factor K50° * % 95 94
Thermal capacity C * kJ/(m2 K) 5.85 5.88
Absorber area 2 2
Optical efficiency eta 0hem** % 81 81.4
Heat loss coefficient a1 ** W/(m2 K) 3.492 3.63
Heat loss coefficient a2 ** W/(m2 K2) 1.6E-2 1.2E-2
Angle of incidence correction factor K50° ** % 95 94
Thermal capacity C ** kJ/(m2 K) 5.85 5.88
Max. stagnation temperature °C 194 189
Max. operating pressure bar 10 10
Capacity l 1.7 1.9


Length A mm 2099 1099
Width B mm 1099 2099
Depth C mm 110 110
Flow/return D mm 1900 900
Connections (flat gasket with union nut) G ¾“ ¾“
Installation angle 15° bis 75° 15° bis 75°
Gross surface area 2.29 2.29


Weight (empty) kg 40 41
High performance flat-plate collectors TopSon F3-1(Q)
ErP produkt datasheet