FKT-1 Top Line Collectors

Overview


The FKT-1 solar panels are Bosch’s high performance solar panels. They are designed to fit on the roof vertical, also known as “portrait,” or horizontal, also known as “landscape.” When having solar panels installed, your existing tank is exchanged for one that is solar compatible with two heat exchanger coils: one from your boiler and a second from the solar panels.

 

 

 

 

 

 

Features


  • Efficient solar panels with 95% absorptivity
  • High performance panel - only 5% of solar radiation emitted back into atmosphere by panels
  • Selective PVD coating on solar panels increase collector performance, even on cloudy days
  • Fiberglass frame and solar safety glass for robust & durable construction
  • Fastest hydraulic collector connection set on the market
  • 25-year design life on DHW system
  • Available for on-roof, flat roof and wall mounted integration
  • Compatible with all Bosch solar storage tanks
  • Certifications: SRCC (OG100), FSEC & CSA
  • Warranty: ten-year warranty (subject to terms & conditions)

 

Specifications


Bosch Solar FKT-1 Flat Plate CollectorsFKT-1s PortraitFKT-1w Landscape
Part number 8718530424 8718530425
Gross collector area (m²) 25.95' (2.41) 25.95' (2.41)
Net aperature area (m²) 24.3' (2.25) 24.3' (2.25)
Dry weight (kg) 97 lbs. (44) 99 lbs. (45)
Fluid content (L) 0.37 Gal (1.42) 0.46 (1.76)
Max operating temperature (°C) 248°F (120) 248°F (120)
Stagnation temperature (°C) 370°F (188) 370°F (188)
Solar glass thickness (mm) 1/8" (3.2) 1/8" (3.2)
Solar glass transmission 91.5% 91.5%
Coating Highly selective PVD Highly selective PVD
Absorptivity 95% ± 2% 95% ± 2%
Emissivity 5% ± 2% 5% ± 2%
Absorber material/type Copper with ultrasonic welding/double meander Copper with ultrasonic welding/double meander
Collector type/construction Plug and socket connector/open vented Plug and socket connector/open vented
Thermal insulation (mm) 2 1/6" mineral wool, high temp resistant and outgassing free 2 1/6" mineral wool, high temp resistant and outgassing free
Max operation pressure (bar) 145 psi (10) 145 psi (10)
Nominal flow rate (L/hr) 0.22 GPM (50) 0.22 GPM (50)
Efficiency (%) 85.1 85.1
Effective heat transfer coefficient 4.0360 = k1 W/(m2>K¹) | 0.0108 = k2 W/(m2>K²) 4.0360 = k1 W/(m2>K¹) | 0.0108 = k2 W/(m2>K²)
Thermal capacity (kJ(m2 * K)) 4.82 4.82
Irradiation angle correction factor IAM 0.95 (50°)/0.90 IAM 0.95 (50°)/0.90
Collector yield (minimum yield verification) >525 >525
Max. # col/row opposite side connection 10 10
Max. # col/row same side connection 5 5
Y-intercept 0.746 0.746