750 Watt DC to AC Power Inverter C onver ts 12V D C B a t te r y Po w e r into 110-120 V AC H o m e Po w e r O W NER' S M A NU A L – SAVE THESE INSTRUCTIONS – Use Schumacher inverters to convert low-voltage, direct-current (DC) to 110-volt alternating household current (AC). Two sources of power are: Standard 12-volt automobile and marine batteries Portable high-power, 12-volt sources like those found in jump starter and DC power sources.
The advanced surge capacity of the PI-750 power inverter gives it the means to start most electrical appliances including: Color televisions, TV/VCR combinations, microwaves, refrigeration units, small air conditioners. In addition, the PI-750 power inverter consumes less battery power, therefore runs for a longer time because it is a state-of-the-art inverter. It runs cooler and is highly efficient.
To calculate the starting load: Starting Load = 2 x WATTS. In general, the start up load of the appliance or power tool determines whether your inverter has the capability to power it. To calculate the continuous load (same as wattage in the above formula): Continuous load = AMPS x 110 (AC voltage) Attention: Always run a test to establish whether the inverter will operate a particular piece of equipment or appliance. In the event of a power overload, the inverter is designed to automatically shut down.
Incorrect operation of your inverter may result in damage and personal injury. Electrical current on a 110-volt circuit can be very dangerous. Your inverter features include: A. ON/OFF Rocker Switch B. LED Indicator Light. (Green = Power ON, Red = Overload) C. Two Standard Electrical 110V AC Outlets D. 12-Volt Power Cord E. High-Speed Cooling Fan F. 2 50-Amp Fuses How To Connect your PI-750 Inverter Make sure the ON/OFF rocker switch is in the OFF (0) position.
generated by the inverter. For best operating results, the extension cord should be no longer than 50 feet. The LED Indicator briefly flashing when you first turn the inverter ON, is a sign if that there is a short circuit within the power supply. Turn the inverter OFF. Turn the inverter ON again. If this does not remedy the problem try using a different 12-volt power source. Using the Inverter to Operate a TV or Audio Appliance The inverter is shielded and filtered to minimize signal interference.
Attention: You may hear a "buzzing" sound being emitted from inexpensive sound systems when operated with the inverter. This is due to ineffective filters in the sound system. Unfortunately, this problem can only be resolved by purchasing a sound system with a higher quality power supply. If the Inverter Fuse Blows? Your PI-750 power inverter is fitted with (2) 50-AMP spade type fuses, which should not have to be replaced under normal operating circumstances.
Power Source Your average automobile or marine battery will provide an ample power supply to the inverter for 30 to 45 minutes even when the engine is off. The actual length of time the inverter will function depends on: 1. Age and condition of the battery. 2. Power demand being placed by the equipment being operated with the inverter. If you decide to use the inverter while the engine is off, we recommend: Turn OFF the device plugged into the inverter before starting the engine.
2. The power input from the battery exceeds 15 volts. 3. The continuous load demand from the equipment or appliance being operated exceeds 750 watts. 4. The case temperature exceeds 145 ºF. Attention: The PI-750 is fitted with a cooling fan that runs as needed while the inverter is operating. If the cooling fan is unable to maintain a cool enough temperature for safe operation, the inverter will automatically shut down. If the inverter automatically shuts down or a continuous audible alarm is heard: 1.
Do not place the inverter in direct sunlight. The ideal air temperature for operation is between 50º and 80ºF. Keep the inverter well ventilated in order to properly disperse heat generated while it is in use. While in use, make sure there are several inches of clearance around the top and sides of the inverter. Do not use the inverter near inflammable materials. Do not place the inverter in areas such as battery compartments where fumes or gases may accumulate.
Make sure the inverter is not close to any potential source of inflammable fumes or gases before connecting the inverter to the power source. Make sure the power consumption of the appliance or equipment you want to operate is compatible with the capacity of the inverter, i.e. does not exceed 750 watts. If you are using the power inverter to operate a battery charger, monitor the temperature of the battery charger for about 10 minutes.
Troubleshooting PROBLEM: Low or No Output Voltage Reason/Solution 1. Poor contact at terminals. Unhook and rehook the 12-volt connections. 2. Using incorrect type of voltmeter to test output voltage. Use a true RMS reading meter. PROBLEM: Red LED On Reason/Solution 1. Battery voltage below 11 volts. Recharge or replace battery. 2. Equipment being operated is drawing too much power. Use a higher capacity inverter or do not use this equipment. 3. Inverter is too hot (thermal shut down mode).
PROBLEM: Low Battery Alarm On All The Time Reason/Solution 1. Input voltage below 11 volts. Recharge or replace battery to maintain adequate power input. 2. Poor or weak battery condition. Recharge or replace battery. 3. Inadequate power being delivered to the inverter or excessive voltage drop. Check condition of cigarette lighter socket. Clean or replace if necessary. PROBLEM: TV Does Not Work Reason/Solution 1. TV does not turn on. Try turning the inverter ON, then OFF, then ON again.
SPECIFICATIONS: Maximum Continuous Power.............................. 750 Watts Surge Capability (Peak Power)......................... 1500 Watts No Load Current Draw.............................................. < 0.4A Wave form........................................... Modified Sine Wave Input Voltage Range.......................................... 10-15 VDC AC outlets................................. 110V AC 3 prong grounded Fuse........................ (2) 50-amp or (2) 40 amp (spade type) Dimensions.
For warranty service, return your inverter, as well as proof of purchase to the factory or a designated agent: Schumacher Electric Corporation, Warranty Service Department 1025 Thompson, Hoopeston, IL 60942 Phone: 800-621-5485 (Hours: 7 a.m. - 4:30 p.m. CST) You will be responsible for all insurance and freight or other transportation charges to the factory or point of repair. We will return your inverter freight prepaid if repair is covered under warranty.
