Installation Guide

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"