Westinghouse WH7500V portable generator

Place on a hard, horizontal surface (with an inclination angle of ≤ 5 °) to avoid engine wear caused by fuel leakage or uneven oil lubrication; Do not place it on loose surfaces such as sand or grass (which can easily attract debris and block the heat dissipation outlet).

At least 3 feet (about 0.9 meters) of heat dissipation space should be reserved around the fuselage, away from flammable materials such as hay, wood, paint, gasoline, etc. The muffler should face the unmanned area (the temperature can reach 400 ℃ or above during operation).

Environmental limitations and responses:

Prohibited scenarios: rainy, snowy, or damp ground (to prevent electric shock); Closed/semi closed spaces (such as garages, basements, tents); Dust and corrosive gases (such as coastal salt spray and chemical plant areas) environment.

Extreme weather: In rainstorm days, temporary awning (not sealed, ensure ventilation) shall be built to prevent rain from splashing the engine and control panel; In high temperature weather (>35 ℃), it is necessary to reduce the capacity for use (reduce the capacity by 10% for every 10 ℃ increase).

2. Fuel safety operation

Preparation before refueling:

Turn off the engine and wait for at least 5 minutes for it to cool down (due to the high temperature of the muffler and engine block, which can easily ignite the fuel).

Clean the oil and dust around the fuel tank cap to prevent impurities from entering the fuel tank; Prepare a qualified fuel can and do not pour it directly from a bucket.

Refueling operation specifications:

Slowly add fuel, with the fuel level not exceeding the lower edge of the fuel tank filling port (leaving 5-10% expansion space), to avoid fuel spillage during high temperatures.

If fuel overflows, immediately wipe it clean with a dry cloth and wait for the fuel to completely evaporate before starting the engine (do not ignite immediately); Check for leaks at the connections of the fuel tank and oil pipes. If there are leaks, do not start.

Fuel storage and handling:

Backup fuel should be stored in a compliant fuel container, in a well ventilated, cool, and away from sources of ignition. The storage time should not exceed 3 months (with the addition of fuel stabilizers, it can be extended to 6 months).

Degraded fuel must be handed over to professional institutions for recycling, and it is prohibited to dump it indiscriminately (which pollutes the environment and is flammable).

Forbidden operation: Do not refuel while the engine is running; Do not use fuel to clean the body or components; Do not place fuel containers on the generator or near heat sources.

3. Electricity safety regulations

Extension cable selection:

Outdoor dedicated, undamaged, and well grounded three core cables must be used, with cable specifications matching the load and length:

20A load (such as small power tools): use 14 gauge cable for lengths ≤ 25 feet; Use 12 gauge cable for ≤ 50 feet.

30A load (such as 3kW air conditioner): use 10 gauge cable for lengths ≤ 50 feet; Use size 8 gauge cable for ≤ 100 feet.

It is prohibited to use two core ungrounded cables, damaged cables, or multiple cables connected in series (which are prone to heating and leakage).

Load access principle:

Before starting, all loads must be disconnected to avoid overload triggering protection during startup (the starting current is 3-5 times the operating current).

After the generator runs stably (no-load for 3-5 minutes), connect high-power devices (such as air conditioning and water pumps) first, and then connect low-power devices (such as lights and mobile phone chargers), with a total operating power of ≤ 6000W.

Inductive loads (motor type) require separate calculation of starting power to avoid multiple units starting simultaneously (such as a 3kW air conditioner+a 2kW water pump, the starting power may exceed 7500W).

Grounding and grid connection requirements:

The neutral wire of the generator is connected to the metal casing of the machine body, and does not require additional grounding when used alone; If it is necessary to connect to the household fixed power distribution system, a certified electrician must install an automatic transfer switch (direct grid connection is prohibited to avoid reverse power transmission to the grid).

When connecting metal shell equipment (such as power tools, water pumps), ensure that the equipment is well grounded to avoid electric leakage and shock.

GFCI socket usage:

Before each use, it is necessary to test: after starting the generator, press the "TEST" button on the socket, and the socket should trip and cut off power; Press the "RESET" button again to reset and confirm that the power supply is normal.

If GFCI trips frequently, it may be due to equipment leakage or cable damage, and the fault needs to be investigated before use.

4. Personnel safety protection

Operation protection: goggles must be worn (to prevent fuel splashing and debris from entering the eyes), gloves must be worn (to prevent oil contamination and burns); Long hair should be curled up to avoid getting caught up in moving parts such as starting ropes and fans.