Name: Magnum Energy ME3112-U
Brand: Magnum Energy
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ME Series

Modiﬁ ed Sine Wave Inverter/Chargers

Owner’s Manual

Table of Contents7
1.0 Introduction10
How an Inverter/Charger Works10
What Appliances will Run from a Modifi Ed Sine Wave Inverter11
Features and Benefi Ts11
Figure 1-1, Power Switch, Status LED, and Accessory Connection Ports11
Figure 1-2, Electrical Connection Points12
Figure 1-3, Left Side Features13
2.0 Installation14
Pre-Installation14
Unpacking and Inspection14
Required Tools and Materials14
Figure 2-1, Simplifi Ed Installation Diagram for Permanent Installations15
Locating the Inverter16
Mounting the Inverter17
Figure 2-2, Approved Mounting Positions17
Figure 2-3, ME Series Dimensions and Side Reference18
Wiring the Inverter - General Requirements19
Protecting Wire - Conduit Box19
Wiring Requirements19
Wire Routing19
Torque Requirements19
DC Wiring20
Figure 2-4, DC and Battery Temperature Sensor Wiring21
DC Wire Sizing22
DC Overcurrent Protection22
Table 2-1, Recommended DC Wire/Overcurrent Device for Rated Use22
DC Cable Connections23
Figure 2-5, Battery Hardware Installation23
Figure 2-6, Inverter DC Hardware Installation23
Table 2-2, DC Wire Size for Increased Distance (in Free Air)23
Wiring the Battery Bank24
Battery Temperature Sensor Installation and Wiring24
Figure 2-7, Battery Temperature Sensor24
Wiring the Inverter to the Battery Bank25
AC Wiring26
Pre-AC Wiring Requirements26
AC Wire Size and Overcurrent Protection26
Recommended Gfcis (Ground Fault Circuit Interrupters)27
AC Terminal Block Connections (ME2012, ME2512, and ME3112)27
Figure 2-8, AC Terminal Block27
AC Conductor Wiring28
AC Wiring Confi Guration29
Table 2-3, AC Input/Output Wiring Confi Gurations29
Figure 2-9, AC Wiring for Single in - Single out (30A) Confi Gurations30
Figure 2-10, AC Wiring for Single in - Single out (60A) Confi Gurations31
Figure 2-11, AC Wiring for Single in - Dual out Confi Gurations32
Figure 2-12, AC Wiring for Dual in - Single out Confi Gurations33
Figure 2-13, AC Wiring for Dual in - Dual out Confi Gurations34
Grounding Inverters35
Equipment Grounding35
Table 2-4, Equipment Grounding Conductor Sizing35
Grounding on Boats36
Neutral to Safety Ground Bonding37
Figure 2-14, Neutral-To-Ground Connection (Inverter Mode)37
Figure 2-15, Neutral-To-Ground Connection (Standby Mode)37
Connecting a Large DC Ground Wire38
Inverter Notifi Cation Requirements38
Final Inspection38
Figure 2-16, Connecting a Large DC Ground Wire38
Figure 2-17, Warning Label38
Functional Test39
Figure 2-18, AC Voltage Checks39
3.0 Operation40
Inverter Mode40
Figure 3-1, Power Flow - Inverter Mode40
Standby Mode41
Battery Charging41
Figure 3-2, Power Flow - Standby Mode41
Figure 3-3, Automatic 4-Stage Charging Graph42
Transfer Time43
Battery Temperature Sensor Operation43
Figure 3-4, BTS Temperature to Charge Voltage Change43
Protection Circuitry Operation44
Table 3-1, Inverter Battery Turn On/Off Levels44
Inverter Startup45
Figure 3-5, Power Switch and Status Indicator45
Factory Default Values46
Table 3-2, Inverter/Charger Default Values46
Inverter Fan Operation47
3.10 Using a Remote with the ME Series Inverter47
Table 3-3, Inverter Compatibility Level47
4.0 Maintenance and Troubleshooting48
Recommended Inverter and Battery Care48
Storage for Mobile Installations48
Troubleshooting48
Table 4-1, Basic Troubleshooting48
Resetting the Inverter50
Performing an Inverter Reset50
Performing a Power Reset50
Figure 4-1, Performing an Inverter Reset50
Appendix A - Specifi Cations and Optional Equipment51
Inverter/Charger Specifi Cations51
A-2 Optional Equipment and Accessories52
Appendix B - Battery Information53
B-1 Battery Location53
B-2 Battery Types53
B-3 Battery Temperature53
B-4 Battery Bank Sizing53
B-5 Battery Bank Sizing Worksheet54
Battery Wiring Confi Gurations55
B-6.1 Series Wiring55
B-6.2 Parallel Wiring55
B-6.3 Series-Parallel Wiring55
Figure B-1, Series Battery Wiring55
Figure B-2, Parallel Battery Wiring55
Figure B-3, Series-Parallel Battery Wiring55
Figure B-4, Battery Bank Wiring Examples (12-Volt)56
Appendix C - Power Consumption & Output Waveforms57
Appliances and Run Time57
Output Waveform57
Figure C-1, AC Waveforms57
Table C-1, Typical Appliance Power Consumption57
Appendix D - Inverter/Charger Terminology58
Appendix E - Warranty & Service60
Limited Warranty60
How to Receive Repair Service61

Magnum Energy ME3112-U User Manual

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Brand	Magnum Energy
Model	ME3112-U
Category	Inverter
Language	English