Progressive Industries, Inc. EMS Electrical Management System Complete Installation Guide and Operating Instructions for: Model EMS-HW50C Rated at 240V/50A Manufactured by: Progressive Industries, Inc. 414B Airport Boulevard Morrisville, NC 27560 (919) 462-8280 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.
Warnings • Do not exceed the rating on 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.
Installation Instructions Before Transfer Box Model EMS-HW50C 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 #6 wire. 1. Unplug RV from AC power and be sure generator is off. 2. Determine a location for the EMS control box. 3.
10. 11. 12. 13. 14. 15. (See Picture B) Caution: If you break off a tab and do not remove it, this may stop the contactor from working and allow 240 volts into the RV. Secure cable ends by tightening down strain reliefs over the input and output wires. Do not over tighten as this could bite through the insulation and cause a short. Set time delay jumper on the circuit board. The factory setting is for 15 seconds. Remove jumper to set for 136 seconds (02:16).
. 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 screw. 7. Remove the lid from the EMS. Remove the digital display, cable and pack of screws and then back off the six set screws from top of contactor. (L1, L2, etc.) 8.
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.
Error Code Chart E-0 Normal Condition E-1 Reverse Polarity Condition (hot and neutral wires reversed) E-2 Open Ground E-3 Line 1 Voltage High (Line voltage above 132) E-4 Line 1 Voltage Low (Line voltage below 104 volts) E-5 Line 2 Voltage High (Line voltage above 132) E-6 Line 2 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) E-9 Data Link Down E-10 Replace Surge Protector Modul
Troubleshooting Guide Common installation mistakes: 1. Check connections. Input is the plug side of the RV and black should be attached to L1, white to L2 and red to L3. Output (going to the RV) should match up. T1 is black, T2 white and T3 is red. 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.
Pictures Referenced in Instructions Picture A Green Ground Wires Time Delay Jumper Plastic Plate Picture B
Wiring Diagram Sensor Arrow Red input L3 T3 White input L2 T2 Black output L1 T1 Input Ground Red Output Sensor w/ no tape White Output Sensor w/ Green tape Black output Sensor Arrow Output Ground
Progressive Industries Warranty Progressive Industries warrants its products are free from defects in materials and workmanship for the life of the unit. 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.
