1 - The Track Rack begins the day facing west. As the sun rises in the east, it heats the unshaded west-side canister, forcing liquid into the shaded east-side canister. As liquid moves through a copper tube to the east-side canister, the tracker rotates so that it faces east.

2 - The heating of the liquid is controlled by the aluminum shadow plates. When one canister is exposed to the sun more than the other, its vapor pressure increases, forcing liquid to the cooler, shaded side. The shifting weight of the liquid causes the rack to rotate until the canisters are equally shaded.

3 - As the sun moves, the rack follows (at approximately 15 degrees per hour), continually seeking equilibrium as liquid moves from one side of the tracker to the other.

4 - The rack completes its daily cycle facing west. It remains in this position overnight until it is "awakened" by the rising sun the following morning.

The ZomeWorks universal passive Track Rack can increase solar array daily power output by 25% or more.

The adjustable single-axis passive solar tracker follows the sun by heated liquid flowing between east and west sealed canisters. The ‘no drilled holes’ rail attachment features stainless steel ‘J’ clips, which bolt to the solar module frame and clips onto the tracker frame rail. Tracker rails adjust along the East-West canisters to allow for varied module lengths. The UTR is designed to withstand 90 MPH winds, no high wind versions.

Ten year limited warranty.