Progressive Industries EMS-LCHW30 Installation Manual And Operating Instructions page 2

WARNINGS
•
Do not exceed the rating of the EMS for any reason; however,
these devices are designed to be reduced down to 120V/15A and
still maintain full protection.
•
Do not modify the EMS in any way.
warranty, compromise protection and could result in possible
shock and/or fire hazard.
•
It is important to always check the pedestal power outlet for
charring. This condition means that the AC receptacle is
providing a weak connection. DO NOT USE! It could result in
possible melting of the RV power plug.
•
Progressive Industries recommends you have a certified
electrician or an authorized dealer perform the installation of the
EMS.
•
When running extension cords from the RV to an AC power
source, always use a 10 gauge cable for your 120 Volt, 30 Amp
system. Make sure that the cable is rated for outdoor use to
reduce the risk of electrical shock. Small gauge cable will have
a higher resistance resulting in voltage loss, plus it may result in
an electrical fire.
•
Whenever servicing or installing the EMS, or any other AC
powered device, make sure AC power is disconnected.
•
RV wiring is different than the wiring found in homes; the
neutral and ground conductors are isolated in the RV, unlike in a
home where they are tied together at the service panel. The
reason is: homes have a bonded ground system, whereas RV's
do not. Therefore, never bond the neutral and ground together
for any reason. This will create a ground fault condition, and
may result in electric shock and/or fire hazard.
•
Never solder the ends of the wires that you attach during
installation. This includes the Black and White wires.
•
Never plug the EMS into an invert.
This will void the
Installation Instructions Before Transfer Box
For installation, in addition to the EMS Kit, you will need:
•
6 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
1. Unplug RV from AC power and be sure generator is off.
2. Determine a location for the EMS control box.
3. Cut the RV power cord about three (3) inches greater than the distance
from the junction box to the desired location of the EMS control box.
Then strip back the outer insulation three (3) inches on input and three
(3) inches on output cable. (See Picture A.)
4. Strip back each conductor 3/8 inch on both stripped ends, (See Picture
A) and attach ring terminals to green ground wires. If this wire is solid
wire, do not use ring terminals. Loop the wire around the ground
screw.
5. Remove the lid from the EMS. Next, remove the digital display and
pack of screws and then back off the four (4) set screws from the top of
contactor.
6. Take your long cable with the plug end and connect it to the input side
by sliding through the wire restraint on the end of the EMS control box.
Then connect the wires to the contactor by attaching black above the
little black wires, white above the little white wires, and the green to
ground screw on side of box. (See Picture B) Torque down set screws
and ground nut to secure connections.
7. Take the short cable coming from the junction box by sliding it through
the wire restraint output side of the EMS control box. Next, slide the
black wire through the current sensor. Make sure the arrow on the
current sensor is facing the contactor and connect to contactor across
from other black wire, then connect the white wire to the contactor
across from the other white wire. Attach the green ground wire to the
ground screw on side of box. (See Picture B) Make sure that the wire
colors match up across from each other. Torque down set screws and
ground nut to secure connections.
8. Double check all connections and make sure they are secure.
9. Remove the two screws on the top of the contactor. Next remove the
top plastic plate. Examine inside, ensuring there are no loose plastic
pieces inside the contactor. If so, remove and re-install cover with two
screws. (See Picture B) CAUTION: If you break off a tab and do not
remove it, this may stop the contactor from working.
10. Secure cable ends by tightening down strain reliefs over input and
output wires. Do not over tighten as this could bite through the
insulation and cause a short.