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Magnum Pure Sine Wave Installation Instructions
Installation
Info: Installations should be performed by qualified personnel, such as a licensed or certified electrician. It is the
installer's responsibility to determine which safety codes apply and to ensure that all applicable installation requirements
are followed. Applicable installation codes vary depending on the specific location and application of the installation.
CAUTION: The inverter is heavy. Use proper lifting techniques during installation to prevent personal injury
The simplified system diagram shown in Figure 2-1 should be reviewed to assist you in planning and designing your
installation. This drawing is not intended to override or restrict any national or local electrical codes. This drawing should
not be the determining factor as to whether the installation is compliant, that is the responsibility of the electrician and
the on-site inspector.
Pre-Installation
Before proceeding, read the entire Installation section to determine how best to install your MS inverter/charger. The
more thorough you plan in the beginning, the better your inverter needs will be met.
Unpacking and Inspection
Carefully remove the MS Series inverter/charger from its shipping container and inspect all contents. Verify the following
items are included:
• The MS inverter/charger
• Red and black DC terminal covers with Phillips screws
• AC access cover with two Phillips screws
• Two 5/16" Kep or Flange nuts (installed on the DC terminals)
• Battery Temperature Sensor
• Warning label
• MS Series owner's manual
If items appear to be missing or damaged, contact your authorized Magnum Energy dealer or Magnum Energy. If at all
possible, keep your shipping box to help protect your inverter from damage if it ever needs to be returned for service.
Save your proof-of-purchase as a record of your ownership; it will also be needed if the unit should require in-warranty
service.
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Table of Contents
Summary of Contents for Tiffin Motorhomes Magnum Pure Sine Wave
- Page 1 Magnum Pure Sine Wave Installation Instructions Installation Info: Installations should be performed by qualified personnel, such as a licensed or certified electrician. It is the installer’s responsibility to determine which safety codes apply and to ensure that all applicable installation requirements are followed.
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Page 2: Required Tools And Materials
Record the unit’s model and serial number in the front of this manual in case you need to provide this information in the future. It is much easier to record this information now, instead of trying to gather it after the unit has been installed. Required Tools and Materials Hardware/Materials •... -
Page 3: Locating The Inverter
Locating the Inverter Only install the inverter in a location that meets the following requirements: Clean and Dry – The inverter should not be installed in an area that allows dust, fumes, insects, or rodents to enter or block the inverter’s ventilation openings. This area also must be free from any risk of condensation, water, or any other liquid that can enter or fall on the inverter. - Page 4 This surface and the mounting hardware must also be capable of supporting at least twice the weight of the inverter. To meet regulatory requirements, the MS Series must be mounted in one of the following positions as shown in Figure 2-2: •...
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Page 5: Wiring The Inverter - General Requirements
Wiring the Inverter - General Requirements This section describes the requirements and recommendations for wiring the MS Series inverter/ charger. Before wiring the MS Series inverter/charger, carefully read all instructions. Wiring should meet all local codes and standards and be performed by qualified personnel such as a licensed electrician. -
Page 6: Wiring Requirements
Wiring Requirements • All conductors that are at risk for physical damage must be protected by conduit, tape, or placed in a raceway. • Always check for existing electrical, plumbing, or other areas of potential damage prior to making cuts in structural surfaces or walls. -
Page 7: Dc Wire Sizing
• To ensure the maximum performance from the inverter, all connections from the battery bank to the inverter should be minimized. The exception is the DC overcurrent disconnect in the positive line and a shunt in the negative line. Any other additional connection will contribute to additional voltage drops, and these extra connection points may loosen during use. -
Page 8: Dc Overcurrent Protection
cable sizes listed in Table 2-1 are required in order to reduce stress on the inverter, minimize voltage drops, increase system efficiency, and ensure the inverter’s ability to surge heavy loads. If the distance from the inverter to the battery bank is >5 feet, the DC wire will need to be increased. -
Page 9: Wiring The Battery Bank
from 10 to 12 ft lbf (13.6 to 16.3 N-m). Wiring the DC Overcurrent Protection Device A fuse/disconnect or circuit breaker must be provided in the DC positive line between the battery and the inverter to protect the DC wiring system. Mount the fuse block (or circuit breaker assembly) as near as practical to the batteries. For maximum protection, install it within 18 inches (45 cm) of the battery. -
Page 10: Wiring The Inverter To The Battery Bank
To install the BTS: 1. Attach the ring terminal end of the Battery Temperature Sensor to the negative battery terminal; see Figure 2-5 for proper connection to the battery terminal. 2. Route the sensor’s cable to the inverter following existing wire runs. 3. -
Page 11: Pre-Ac Wiring Requirements
AC Wiring This section provides information on how to make the AC connections to the inverter using the correct AC wire size and corresponding overcurrent protection. Pre-AC Wiring Requirements • Read all instructions and cautionary markings located at the beginning of this manual and in the pre-installation section before installing the inverter and batteries. -
Page 12: Ac Terminal Block Connections
• Leviton Smart Lock #8899-A • Hubbel #GF520EMBKA AC Terminal Block Connections The inverter has a six-pole AC terminal block and one AC ground terminal to connect the inverter’s AC input and output wiring. To access and view the AC terminal block and ground terminal, remove the two Phillips screws holding the AC wiring access cover plate (see Item 15, Figure 1-3). - Page 13 2. Connect the hot (BLACK) wire from the inverter’s AC HOT 1 OUT terminal to the sub-panel‘s main breaker (or to the hot connections on the outlets if using the output breaker versions). Tighten the AC HOT 1 OUT terminal to 16 in lbf (1.8 N-m).
- Page 14 is < 30 is > 30 pass-thru capability passthru while on (requires 120/ amps. amps. limited by model the AC source is 240 VAC source). Requires a Requires a used: -15B = 30 on. Requires a Requires a separate separate amps;...
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Page 18: Ac Conductor Wiring (Ms2000 Models)
AC Conductor Wiring (MS2000 models) The MS2000 offers a cost-effective alternative to the MS2012 while still providing the same features. This model has a slightly smaller height, but otherwise has the same footprint as the other MS Series inverters. The MS2000 can be wired in a single in - single out configuration, as well as a single in - dual out configuration (-15B &... - Page 19 Table 2-4, AC Input/Output Wiring Configurations (MS2000 models) SI/SO (30A) Single In/ Single Out (30A) SI/D 120 VAC @ < 30 am AC Source1 Required 120 VAC @ < 30 amps models); or < 20 am Have an 120 VAC source that is < 30 amps. Requires a Do not want to insta Reason to Use separate inverter sub-panel.
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Page 21: Grounding Inverters
Grounding Inverters The inverter/charger should always be connected to a permanent, grounded wiring system. An inverter system that is properly grounded will limit the risk of electrical shock, reduce radio frequency noise from the inverter, and minimize excessive surge voltages induced by lightning. This is done by ensuring there is a well-defined, very low-resistance path from the electrical system to the grounding system. -
Page 22: Sizing The Grounding Electrode Conductors
equipment. • Grounding Electrode (GE): A ground rod or conducting element that establishes an electrical connection to the earth. • System bonding jumper (SBJ): The connection between the grounded circuit conductor in the electrical system and the equipment grounding conductor at a separately derived system. The MS Series inverter/charger uses both AC and DC power;... - Page 23 DC Side – To size the DC grounding electrode conductor, you must first determine which one of the following three methods will be used to connect the DC and AC grounding points in the inverter’s two electrical systems to the common “earth”...
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Page 24: System Bonding Jumper
System Bonding Jumper The MS Series inverter does not include an internal bond between the grounded conductor (AC neutral/DC negative) and the equipment grounding terminals. This bond [system bonding jumper (SBJ)] is usually done in the main distribution panel for each electrical system. AC Side –... -
Page 25: Neutral To Safety Ground Bonding
Neutral to Safety Ground Bonding The standards for safely wiring residential, commercial, RV/truck, and marine installations in the United States require the neutral and safety ground to be connected at the AC source; whether it is the utility feed in your home, an inverter, or a generator. -
Page 26: Disabling The Neutral-To-Ground Connection
Disabling the Neutral-to-Ground Connection All MS Series inverter/chargers have the automatic neutral-to-ground switching feature. In some installations/ jurisdictions, this feature must be disabled by disconnecting the neutral-toground connection. If you are not sure whether you must disable this feature, check your local code requirements. The following steps will guide you in disabling the neutral-to-ground switching feature. -
Page 27: Facilities With Standalone Systems
Connecting a Large Ground Wire Marine installation requires the ground wire to be the same size or one size smaller than the negative cable. Use the following steps to allow a larger ground wire to be connected. 1. Locate the DC ground terminal (Item 7, in Figure 1-2). 2. -
Page 28: Facilities With Utility Services And Pv Systems
power system. Facilities with Utility Services and PV Systems Buildings, facilities, or structures with both utility service and a photovoltaic system must have a permanent plaque or directory providing the location of the service disconnecting means and the photovoltaic system disconnecting means if they are not located at the same location. - Page 29 3. Lightly press and release the inverter’s ON/OFF switch to turn the inverter on. Verify the inverter’s status indicator is blinking – indicating the inverter is on. 4. Connect a 10-25 watt light bulb to the inverter output and verify it comes on and shines normally. DO NOT connect anything larger than a 25-watt light bulb until all wiring and voltages are confirmed to be correct.
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