Page
22
Unirac Code-Compliant Installation Manual
SunFrame
R
1411 Broadway Boulevard NE
Albuquerque NM 87102-1545 USA
9. Installing the end caps:
Attach the end caps to the ends of the rails by securing with
the truss head sheet metal screws provided (
Fig. 16
) .
Figure 16. End cap installation.
Table 4: PV module, cap strip, and cap strip screw compatibility
To ensure code compliance and a structurally sound array, cap strip sizes and cap
strip screw lengths must be compatible with the PV modules in your installation. All
cap strip screws must be ¼-20 Type F thread cutting (18-8 stainless steel).
Module thickness or type
Cap strip
Required screw
inches
mm
cross section
Cap strip size
length (inches)
1.34 –1.42
34 – 36
C
¾"
1.50 –1.57
38 – 40
D
¾"
1.77–1.85
45 – 47
F
1"
1.93 – 2.01
49 – 51
E
1¼"
Sharp lipped modules
G
1"
Sanyo lipped modules
H
¾"
