Progressive Industries EMS-LCHW30 Operating instructions

Progressive Industries
EMS
Electrical Management System
Installation Guide
and
Operating Instructions for:
Model EMS-LCHW30
Rated at 120V/30A
Manufactured by:
Progressive Industries, Inc.
414B Airport Boulevard
Morrisville, NC 27560
[phone]
www.progressiveindustries.net
Proudly manufactured in the U.S.A.
Features
High/Low Voltage Protection
Whenever AC power falls below 104 volts, or rises above 132 volts, the EMS automatically
shuts down power to the RV. The EMS will monitor the power and once the AC power rises
above 104 volts, or drops below the 132 volt level, the time delay indicator flashes for the preset
time and then automatically restores power to the RV.
Time Delay for A/C Compressor
If AC power is interrupted, or the EMS detects a fault condition, the built-in time delay is
activated. There are two settings on the EMS: one is 136 seconds (02:16), and the other is 15
seconds. Consult your air conditioner manual to see if it has a time delay built in. If so, use the
15 second delay; if not, use the 136-second delay. The factory setting is 15 seconds.
3 Mode surge protection
This feature provides full surge protection L-N, L-G, and N-G. Total Joule rating is 1790, and
surge current is 44,000. Response time of <1 nano second.
Surge Indicator
In the event of a power surge and the surge protector circuit is damaged within the EMS, L-N or
L-G, the digital display error code will read E-10. This indicates that the EMS needs to be
serviced.
Reverse Polarity Protection
If AC power is a reverse polarity condition, the EMS will not allow power to the RV and the
error code will read E1.
Open Neutral Protection
If the AC power has an open neutral condition, the display will not light, and power will not be
allowed to the RV.
Open Ground Protection
If the AC power has an open ground condition, the EMS will read an error code of E2, and
power will not be allowed to the RV.
AC Frequency Protection
If AC power frequency deviates plus/minus 9 hertz from 60 cycles per second, the EMS will
shut down AC power. An Error Code of E7 will be displayed when the frequency is high; and
an Error Code of E8 will be displayed when frequency is low.
Accidental 240V protection
If 240 volts is detected when plugging into AC power, the EMS will NOT allow power to the
RV. If this condition occurs while power is applied to the RV, the EMS shuts off power
instantly. The display will read the voltage and E3 for the error. (NEVER BYPASS THE EMS
WHEN THIS OCCURS.)
Display
Continuously scrolls the AC power information, including voltage, current, frequency, error
codes, and previous errors. Each reading is displayed for two (2) seconds.
Previous Error Code
This feature tells the user what the previous error was and why power was interrupted to the RV.
To read a Previous Error code, put a “P” in front of the “E” code. This is only displayed if an
actual error occurs. The error is deleted when the power is disconnected from the EMS.
Bypass
Enclosed blue jumper wire allows the user to bypass the computer circuit in the EMS in the
event of computer failure, thus allowing AC power into the RV. This does not disable the surge
protection portion of the EMS; however, all other features are disabled.
Modular Design
Replacement parts are designed for simple plug and play, making repairs extremely user
friendly.
Microprocessor Controlled
The computer and built-in display are driven by state of the art microprocessors that are
programmed with software to drive the entire EMS unit.

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. This will void the
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.
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.

11. Set time delay jumper on the circuit board. The factory setting is for 15
seconds. Remove jumper to set for 136 seconds (02:16). See Features
Section on time delay to determine which to use. (See Picture B.)
12. Plug in display. NEVER PLUG IN DISPLAY WHILE RV POWER IS
ON, BECAUSE THIS WILL CAUSE THE ELECTRONICS BOARD
TO BLOW. (See Picture C )
13. Attach EMS lid with the six black machine screws provided.
14. Mount the EMS control box.
15. Installation is complete. Next, plug in and follow operating
instructions.
Installation After Transfer Box for
Protection from both Generator and AC Power.
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 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 10-gauge, 3-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 Picture A)
6. Strip back all conductors 3/8 inches and attach ring terminals to green
ground wires. (See Picture A) If this wire is solid wire, do not use ring
terminals. Loop the wire around the ground screw.
7. 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 top of contactor.
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
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.
9. The cable that came from the transfer box connects to the output side of
the EMS control box in the same manner. Next, slide the black wire
through the current sensor, making 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.
10. Connect the loose end of the jumper cable to the transfer switch. See
wiring diagram on transfer switch if needed.
11. Double check all connections to ensure they are secure.
12. 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.
13. Set time delay jumper on the circuit board. Factory setting is for 15
seconds. Remove jumper to change setting to 136 seconds (02:16). See
Features Section on time delay to determine which to use. (See Picture
B.)
14. Plug in display card. NEVER PLUG IN DISPLAY WHILE RV
POWER IS ON BECAUSE THIS WILL CAUSE THE ELECTRONICS
BOARD TO BLOW.
15. Attach lid with the six black machine screws provided and attach transfer
switch lid.
16. Mount the EMS control box.
17. Installation is complete. Next, plug in and follow operating instructions.
Operating Instructions
1. Plug into A/C power.
2. Digital display will read 888 for one second and then begin scrolling the
voltage, amps, line frequency and error code, if any. In addition, the
time delay light will flash while the EMS is going through its countdown
and will stop when the unit engages. (Bottom right hand corner.)
3. You may notice when first plugging in that the display may read E-9.
Don’t worry about this, it only means that the display has not received
data from the computer yet. By the next time through it should read E-0
if the A/C power is normal.
4. The digital display will read voltage, then 0A which is current (amps).
Current will read zero until the time delay is complete. (136 seconds or
15 seconds, depending on your settings). Next, you will notice a number
between 0 and 30. This number indicates how many amps the RV is
drawing. Next you will notice 60H and this is your line frequency. That
number should remain fairly consistent, however, it may read plus/minus
one or two. Lastly, you will notice the E code. E-0 is normal and only if
E-0 or E-10 is present will the delay light flash and allow power to the
RV. Refer to your Error Code chart that was provided or see Error Code
chart below for further details.
5. Verify that Error Code E0 is displayed and set up is now complete.

IMPORTANT: The display will only read voltages between
approximately 78 volts and 255 volts.
NOTE: If the wiring reads anything different than correct, the EMS will
not turn on and we recommend you move to a different source of AC
power or use your generator power. Also, if power is below 104 volts or
above 132 volts the EMS will not turn on, and we recommend using your
generator power.
Error code Chart
E-0 Normal Condition
E-1 Reverse Polarity Condition (hot and neutral wires reversed)
E-2 Open Ground (means no ground wire connection)
E-3 Line Voltage High (line voltage above 132 volts)
E-4 Line Voltage Low (line voltage below 104 volts)
E-7 Line Frequency High (line frequency above 69 cycles per second)
E-8 Line Frequency Low (line frequency below 51 cycles per second)
E10 Replace Surge Protector Module
NOTE: If the EMS cuts the power to the RV it will show a PE code following
the E code. This denotes the previous error or why the EMS shut down.
Example: The EMS cuts power for low voltage and then the power is
restored. The Error Code reads E0, but the PE code reads PE4 which tells the
user low voltage was the reason for the EMS previously cutting power. This
PE Error Code will be deleted when power is disconnected from the EMS.
Accidental 240 Volt Protection:
Should this condition occur, the display will read 240 volts instead of displaying
the voltage and the error code message will read E-3. AC power will shut down
instantly. DO NOT UNDER ANY CIRCUMSTANCES BYPASS THE
EMS; OTHERWISE, THIS WILL RESULT IN SEVERE DAMAGE TO
THE RV.
TROUBLESHOOTING GUIDE
Common installation mistakes:
1. Check connections. Input is the plug side of the RV and black should
be attached above the little black wires, white above little white wires.
Output (going to the RV) should match up. The black should match up
across from the black and the white should match up across from the
white. The green ground gets attached to the input and output on the
side of the box.
2. Make sure that input wires are, in fact, the input wires. Connecting the
output to the input of the EMS will cause the device to malfunction.
3. If the EMS is still not functioning at this point, follow instructions
below prior to calling Technical Support.
In order for the on-call Technician to troubleshoot the problem(s) you are
experiencing and render the best possible solution, it is necessary that you be
at your RV when you place your call.
1. If the display is illuminated and scrolling information, note the Error
Code. If there is an Error Code of 1-8, the device will interrupt the
power. See Error Chart for definition of AC power problem. The
device being off when an Error Code is present indicates the product is
working properly and protecting your coach.
2. If the display is illuminated and reading Error Code E-0, and yet no
power is present in the coach, please contact Technical Support.
You
must wait for the time delay light to stop flashing
3. If the display is not illuminated and power is in the coach there is a
connection issue between the display and the main control box.
Contact Technical Support.
Technical Support can only help if the above information is provided,
therefore, please do not call until this information is obtained. Again, it is
necessary for you to be at the RV when you place your call. To recap…
1. Are the connections correct?
2. What is the Error Code message being displayed?
3. Is the delay indicator flashing?

Pictures Referenced in Instructions
Picture A
Picture B
Pictures Referenced in Instructions (con’t)
Picture C
Wiring Diagram
White Input White Output
Sensor arrow
Black Input Black Output
Input Ground Output Ground

Progressive Industries Warranty
Progressive Industries warrants its products are free from defects in materials and
workmanship for a period of three (3) years. This is in lieu of all other warranties,
obligations, or liabilities expressed by the company. In the event that a properly installed
EMS proves defective under normal use, Progressive Industries will repair or replace the
device at its discretion.
The hardwired EMS product was specifically designed to be modular; therefore, any part
of the EMS can be replaced without removing the entire unit. For Technical Support,
please call [phone]. In order for the on-call Technician to troubleshoot the
problem(s) you are experiencing and render the best possible solution, it is necessary that
you be at your RV when you place your call.
Once Technical Support has properly diagnosed the problem, if any, a replacement part
will be sent to you. Do not remove the damaged part unless instructed to do so. This will
aid you with the installation of the replacement part(s).
When you receive your replacement part(s), inside the box will be a return address label.
Simply use the same box and the return label to return the damaged part(s).
The address below is strictly a mailing address. Please do not attempt to visit our facility
during business hours as the company is not staffed, nor equipped to handle on-site repair
work. All returns must be routed through Technical Support.
Progressive Industries, Inc.
414B Airport Boulevard
Morrisville, North Carolina 27560
The unit being returned must be properly packaged with the postage paid and include the
following information:
1) Date of purchase
2) A detailed explanation of the problem/defect
3) Your name
4) Return address and phone number
Progressive Industries cannot assume responsibility for acts of God, alterations,
shipping/handling, or any other factors not under the control of Progressive Industries.
Progressive Industries has no responsibility for installation, personal injury, property
damage, incidental, contingent, or consequential damages of any kind resulting from
defects or failure of the unit to function.
The remedy for breach of this warranty is limited to the repair or replacement of the
defective product at Progressive Industries’ option. In no case shall the liability
prescribed by law exceed the purchase price. Some states do not allow exclusion or
limitation of incidental or consequential damages or allow disclaimers, modifications or
limitations on how long a warranty lasts; therefore, the above warranties may not apply to
you. This warranty gives you certain legal rights, and you may have other rights, which
may vary from state to state.
(Revision A)