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auroTHERM VFK 135

An efficient drainback system component

Uses indirect solar radiation, not just sunlight
Reduces CO2 emissions and positive benefit to the environment
Adds value to your property

Overview Features and benefits Downloads

auroTHERM VFK 135

auroTHERM flat plate collectors VFK 135 D available in two arrangements vertical and horizontal, consist of a laiser welded copper grid absorber coating, a toughened 4mm thick solar glass cover and high efficiency 40mm rear and side insulation. The whole assembly is encased in a polished aluminium frame for a neat construction. The collectors can be connected in series in horizontal or vertical orientation to suit the available roof space.

Optimal efficiency
Uses indirect solar radiation, not just sunlight
Reduction of fuel bills
Reduces CO2 emissions and positive benefit to the environment
Efficient, durable and stylish
Adds value to your property

Features and benefits
Optimal efficiency	Uses indirect solar radiation, not just sunlight
Reduction of fuel bills	Reduces CO2 emissions and positive benefit to the environment
Efficient, durable and stylish	Adds value to your property

Features and benefits	VFK 135 D	VFK 135 VD
Gross collector area / Gross collector area m2	2,51 / 2,35
Fluid content l	1,35	1,46
Insulation thickness mm	40
Operational pressure max. bar	10
Light transmittance of the solar glass %	91
Absoption coefficient %	94	95
Shutdown temperature (accord. to prEN 12975-2, c <1m/s) °C	176	170
Coefficient of efficiency k1 W / (m2k)	3,7	2,6
Coefficient of efficiency k2 W / (m2k)	0,012	0,033
Direction of installation	horizontal	vertical
Dimensions: Height / Width / Depth mm	2033 / 1233 / 80
Weight kg	37	37,5