Samlex America SAM-3000-12 - Manual (Page 18)

16 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 17
taBLe 4.4: inVerter SiZinG factor
type of Device or appliance inverter Sizing factor 1
Air Conditioner / Refrigerator / Freezer (Compressor based) 5
Air Compressor 4
Sump Pump / Well Pump / Submersible Pump 3
Dishwasher / Clothes Washer 3
Microwave (where rated output power is the cooking power) 2
Furnace Fan 3
Industrial Motor 3
Portable Kerosene / Diesel Fuel Heater 3
Circular Saw / Bench Grinder 3
Incandescent / Halogen / Quartz Lamps 3
Laser Printer / Other Devices using Quartz Lamps for heating 4
Photographic Strobe / Flash Lights 2 4
noteS for taBLe 4.4
1. Multiply the Running Active Power Rating {Watts} of the appliance by this Factor to arrive at the Continu-
ous Power Rating of the inverter for powering this appliance.
2. For Photographic Strobe / Flash Unit, the surge power of the inverter should be > 4 times the Watt Sec
rating of photographic strobe / flash unit.
Limiting electro-magnetic interference (emi)
This unit contains internal switching devices that generate conducted and radiated elec-
tromagnetic interference (EMI). The EMI is unintentional and cannot be entirely elimi-
nated. The magnitude of EMI is, however, limited by circuit design to acceptable levels to
provide reasonable protection against harmful interference. This unit can conduct and
radiate radio frequency energy and, if not installed and used in accordance with the in-
struction manual, may cause harmful interference to radio communications. The effects of
EMI will also depend upon a number of factors external to the unit like proximity of the
unit to the EMI receptors, types and quality of connecting wires and cables etc. EMI due to
factors external to the unit may be reduced as follows:
- Ensure that the unit is firmly grounded to the ground system of the building or
the vehicle.
- Locate the unit as far away from the EMI receptors like radio, audio and video
devices as possible.
- Keep the DC side wires between the battery and the unit as short as possible.
- Do not keep the battery wires far apart. Keep them taped together to reduce their
inductance and induced voltages. This reduces ripple in the battery wires and improves
performance and efficiency.
SECTION 4 | Installation
11002-SAM-1000-1500-2000-3000-12-0814.indd 18 14-08-12 9:59 AM