Features:
High low voltage protection: Whenever source power falls below 104 Volts, or
rise above 132 volts the EMS automatically shut down power to the RV. Once the
AC source rises above 104-volts, or below the 132-volt level the time delay
indicator flashes for the preset time and then automatically restores power to RV.
Time delay for A/C Compressor: Whenever source power is interrupted by the
source or the EMS, due to a fault condition the built in time delay is activated.
There are two settings on the EMS; one is 136 seconds, and the other is 15 seconds.
Consult you 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
3 Mode surge protection: This feature provides full surge protection L-N, L-G,
and N-G. Total Joule rating is 1780, response time of <1 nano second.
Surge Indicator: If ever a power surge damages the surge protector circuit within
the EMS L-N, or L-G Digital display error code will read E-10. This is your
indication that it needs to be replaced.
Reverse polarity protection: If source 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 source has an open neutral condition the display
will not light, and will not allow power to the RV.
Open ground protection: If source power has an open ground condition the EMS
will read an error code of E2 and will not allow power to the RV.
AC Frequency Protection: If source power frequency deviants +/- 9 hertz from 60
cycles per second the EMS will shut down source power, and indicate an E7 or E8
error code on the digital display.
Accidental 220V protection: If 220 volts is detected when plugging into source
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. In either case the
display will read HHH for the voltage and E3 for the error code.
Integrated information panel: Scrolls continuously all of the power source
information, voltage, current, frequency, error codes, and previous errors. Each
reading is displayed for 2 seconds
Previous error code: This feature tells the user what the previous error was, and
why power was interrupted to the RV. This is only displayed if an error actually
occurs and goes away when power is disconnected to 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 source power into the
RV. This does not disable the surge protection portion of the EMS.
Modular design Replacement parts are designed for simple plug and play, making
repairs extremely user friendly.
Microprocessor controlled: The computer, and remote display are driven by state
of the art microprocessors that are programmed with software to drive the entire
EMS. Should ever this software be changed EMS, owners can receive a free
upgrade processor with the return of the old.
Troubleshooting guide
Common installation mistakes:
1.Check cable connections
Unplug open control box and check connections. Look at
small wires located under the input connections, and make
sure the conductor colors match (small black wires and black
RV input wire, and small white wires matches up with white
RV input wire).
3. Make sure that input wires are in fact the input wires,
connecting the output to the input of the EMS will result in the
device not to function.
4. If the EMS is still not functioning at this point follow
instructions below prior to calling technical support.
Write down the following information prior to calling
technical support:
1. Open up control box and look at computer board located on the
side of the control box. You will notice a red light this should be
on, if not stop there and call technical support. If is on go to next
step.
2. Look at display if no reading is present call technical support. If
the display is reading information note the error code message if
the EMS is read Error 1-8 see error code chart on previous page
this means device is functioning fine. If reading E-0 read on.
3. The delay indicator located below the digital read out is flashing
wait out time delay you will see the indicator stop flashing at
which time power should be on in RV. If not call tech support to
install blue bypass jumper wire.
Technical support can only help if the above information is
provided, therefore please do not call till that information is
obtained. To recap
1. Are the connection right?
2. Is the red light on located on circuit board inside control box?
3. What is the Error code message being displayed on the display?
4. Is the delay indicator flashing?
