•
Pay attention to balance when installing additional components (inverters, wires /
conduit, etc.)
•
Track Racks™ will work within a range of Counterweight adjustments.
•
If the tracker is not going through the full travel range,
raise the Counterweight.
•
Keeping the Counterweight low will make the tracker
more stable in wind.
•
Provided that additional stability is not required for gusty
winds, the optimal Counterweight position results in the
Truss Tube lightly touching the Bumper Bolt at the
beginning and end of the day (when all Freon has been
shifted).
Seasonal Adjustments
•
Trackers can be tilted in one position or adjusted seasonally to increase output.
Adjusting tilt throughout the year can add approximately 3-6% to the annual output (will
vary with location, climate, etc).
•
If setting the rack for one year-round setting, the tilt should be close to the latitude.
For example: In Albuquerque, NM (latitude 35.1° N)
a tracker should be tilted close to 35° (as
measured from horizontal). The Seasonal
Adjustment Bar offers a position of 35° - this will
work well.
•
If adjusting the rack throughout the year, adjust the tilt
so that the sun hits the surface of the modules as close
to a right angle as possible.
•
A good compromise is to adjust the rack to a tilt of
la 10° (or max.) sometime after the fall equinox
(September 22
th
) and latitude – 10° (or min.) sometime
after the spring equinox (March 20
th
).
Maintenance
•
Bearings with grease zerks should be lubricated with a general-purpose bearing
grease twice a year.
•
Paint touch-up will be necessary to prevent rusting. Sand off all rust prior to painting.
Use a high-quality enamel or Rustoleum® type paint.
•
If the Track Rack™ is installed in a corrosive climate, check the axle and bearings
frequently for rust or corrosion; you may need to grease the bearings 3 to 4 times per
year and keep the axle coated with grease or a corrosion inhibitor.
•
Check the Shock bolts and Bumper bolts twice a year and tighten if necessary. Also
check the Axle pivot bolt and Seasonal Adj. Bar bolts. Loose bolts increase wear on
mating parts and introduce the potential for failure.
COUNTERWEIGHT
POSITION
LOWER
HIGHER
•
MORE STABLE
•
LESS MOVEMENT
•
MORE MOVEMENT
•
(POSSIBLE) FASTER
WAKE-UP
•
MORE EASILY BLOWN
OFF-COURSE
•
"SEARCHING" FOR SUN
•
FULL MOVEMENT WITH
FULL SHIFT OF
REFRIGERANT
•
GOOD STABILITY
•
REASONABLE WAKE-UP
TIMES
