Excavation
Class IV dimensions are 16x16x5 and Class II dimensions 19x19x6
Rebar Matte
Matte is elevated 3” above dirt
Bolt Rings Assemblies and Forms
The lower embedded ring, bolts, and nuts are supplied as part of the VP-20 tower assembly.
Please indicate whether a Class II or Class IV or Class IV foundation when ordering.
Installation of Pier Form and Ring Bolt Assembly
Rolled steel form, upper ring, and three clamp brackets are part of the Pier Form kit. The
components can be purchased directly from Renewegy or drawings can be supplied and built by
distributor.
Bolt Ring Tip-down Alignment and Leveling
Bolt ring is placed in form such that two bolts are aligned in the tip-down direction. Integral jack
screws are used to level the bolt ring before and after pouring.
Rebar and Bolt Ring relationship with centered Ufer Ground Rebar
Ufer ground rebar should protrude a minimum of 7” above the surface of the concrete
Finished Pier
Upper surface should have final finish and circumference should be edged
Hydraulic Raise
After a minimum of a 28 day cure, the tower can be assembled to the foundation and hydraulically erected. A 1.0 HP 230VAC electric motor is used to energize the hydraulic power supply to raise and lower the tower assembly.
