Dulas VC150SDD, Installation & Technician'S Manual

Page: 21 / 47

VC150SDD Installation & Technician’s Manual
Page 21 of 47
Following the guidance in sections 10 and 11
above determine the required tilt angle for the
array. Use an inclinometer (or free smart phone
app e.g. “Angle Meter” in the Google Play store)
to set the array tilt. Alternatively a triangle may
be cut from a piece of card and used with a spirit
level to set the array angle correctly. Refer to the
table below for the dimensions necessary to
produce a triangle of the correct size.
Required Angle
( A )
Length of Y Length of Z Required Angle
( A )
Length of Y Length of Z
10° 9cm 50cm 30° 29cm 50cm
15° 16cm 60cm 35° 35cm 50cm
20° 22cm 60cm 40° 42cm 50cm
25° 28cm 60cm 45° 50cm 50cm