6
HW50C Visual Photo Library on page 11 | Wiring Diagram on page 13
HW30C Visual Photo Library on page 12 | Wiring Diagram on page 13
For installation, in addition to the EMS Kit, you will need:
• 4 mounting screws
• In some cases you will need a jumper cable, length to be
determined based on the placement of the EMS
•
Always
use 10 wire for the HW30C & #6 wire for the HW50C.
1. Unplug RV from the AC power and be sure generator is off.
2. Locate transfer switch box; determine where the EMS control box
will be mounted.
3. Measure the distance between the transfer switch and the control
box and add one (1) foot. This is the length of cable that will be
required for the installation. Make sure 6-gauge, 4 conductor
cables are used.
4. Remove lid from transfer box, disconnect and remove the output
cable.
5. Take jumper cable and strip back one end three (3) inches and the
other end the same as the end removed from the transfer box. The
cable removed from the transfer box must have at least three (3)
inches of the outer insulation removed. (See visual references on
pages 11-13).
6. Strip back all conductors 3/8” and attach ring terminals to green
ground wires. (See visual references on pages 11-13). If this wire
is solid wire, do not use ring terminals. Loop the wire around the
screw.
7. Remove the lid from unit. Inside the unit will be a digital display,
cable and pack of screws. Back off the six set screws from top of
contactor. (L1, L2, etc.)
8. Take the jumper cable and connect it to the input side by sliding
through the wire restraint on the end of the EMS control box and
then connect the black wire to L1; white to L2; red to L3, green to
ground screw. (See visual references on pages 11-13). Torque
down set screws and ground nut to secure connections.
[Continued on page 7]
Installation After Transfer Box for
Protection from both Generator and AC Power
