[TowerTalk] Wiring Sky Needle tower for 220 VAC

Ray Benny rayn6vr at cableone.net
Tue Nov 5 01:48:53 EST 2013

I have an older 90 ft Triex Sky Needle that I have been working on. I'm
down to the wiring of the raising/lowering motor. Because of the long
distance, I ran four conductors (250 ft) of #10 wire. The motor current
draw for 220 VAC is 9 amps, versus 18 amps for 110 VAC. There would be a
voltage drop of about 10 volts running 110 VAC versus 5 volts running 220
VAC. The tower motor can be wired for either 110 or 220 VAC. The problem is
the tower controller that came with the Sky Needle is build to run on 110

I am hoping that I can bring in 220 VAC to the up/down relays to do the
up/down switching while keeping the rest of the control box running on 110
VAC. I also have the RMC-1000 remote unit, but it too is wired for 110 VAC
and would like to incorporate them together. I now have the schematics for
both the tower control box and remote unit.

Has anyone done such a rewire of their control box to run the motor at 220
VAC with the remainder of the box running 110 VAC? All relays and delay
switches run on 110 VAC.

I'd appreciate any help or suggestions.



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