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8.6 ELECTRICAL CONNECTIONS
CAUTION:
Failure to heed the following may result in equipment damage.
Connecting 230 Vac to a unit that has been configured to 110-120 Vac will result in
permanent damage to the unit. Damage due to incorrect wiring is not covered under
the warranty.
WARNING:
Failure to heed the following may result in injury or death.
All electrical connections should be made by a licensed electrician or certified
electrical contractor
8.6.1
Electrical Connections Overview
A high voltage AC input provides power to the control center. Low voltage cables provide power
from the Digital Nano/Nano+ control center to the Tri-sensor and cell.
The AC input voltage of the Digital Nano/Nano+ has been preconfigured at the factory.
Model numbers 75041A, 75041A-xx, 75043A, 75043A-xx have been factory configured
for 230 Vac
This voltage configuration can be changed in the field by a qualified electrician if required.
Refer to the wiring diagram located on the inside of the power center cover to reconfigure the
wires on the terminal block if the unit AC input voltage is going to be changed from 230 Vac to
115 Vac, or see below.
Configuring the Power Supply for 110V-120V Operation:
1) Remove the cover by loosening the (4) recessed Phillips screws in the front corners of
the cover.
2) Move the RED wire from the third terminal up to the second terminal
3) Move the YELLOW wire from the fourth terminal down to the fifth terminal.
4) Install the fuse labeled FUSE: 2A 250V 3AG SLO BLO into the fuse clip on the power
supply board as shown in the photo below.
*Note: If a 110V cord is needed, you can order the AutoPilot Power Cord Kit #STK0196.
You may also obtain a 16 AWG 2 conductor w/ground power cord, suitable for
outdoor applications, from your local hardware or electrical supply store.
RED
YELLOW
FUSE
OPEN
TERMINAL
LUGS
