Westinghouse WGen7500, User Manual

Westinghouse Portable Power | 19

OPERATION 

POWER OUTPUT AND DEMAND

The generator should not be run completely unloaded 
for extended periods otherwise the engine may be 
damaged. It is recommended that the generator should 
always be operated with at least one-third of its rated 
120-Volt AC power output. 120-Volt AC devices have 
two different electric power demands that must be taken 
into consideration, namely the running power and the 
starting/peak power. Both are measured in Watts (typically 
abbreviated as “W”).

The steady state continuous load is the running power 
demand and this is often marked on the device near its model 
number or serial number. Sometimes the device might only 
be marked with its voltage (i.e. 120 V) and current draw (e.g. 6 
Amp or 6 A), in which case the running power demand in Watts 
can be obtained by multiplying the voltage times the current, 
e.g. 120 V × 20 A = 2,400 W.

Simple resistive 120-Volt AC devices such as incandescent 
bulbs, toasters, heaters, etc. have no extra power demand 

when starting, and so their starting power demands are the 
same as their running power demands.

More complex120-Volt AC devices containing inductive or 
capacitive elements such as electric motors have a momentary 
extra power demand when starting, which can be up to seven 
times the running power demand or more. Manufacturers 
of such devices rarely publish this starting power demand 
and so it’s often necessary to estimate it. A rule of thumb 
for devices fitted with an electric motor is to apply a starting 
power multiplier of 1.2 for small hand-held or portable devices 
and a value of 3.5 for larger stationary devices. For example, 
a 900 W angle grinder can be assumed to have a starting 
power demand of at least 1.2 × 900 W, which equals 1,080 W. 
Similarly, a 1,650 W air compressor can be assumed to have a 
starting power demand of at least 3.5 × 1,650 W, which equals 

5,775 W.

To prevent overloading of the generator’s 120-Volt AC system:

1. 

Add up the running power demand of all the 120-Volt AC 
devices that will be connected to the generator at one 
time. This total must not be greater than the generator’s 
specified running power output.

2.  Add up the running power demand again, but for the 

largest motor-driven device use the value of its starting 

power demand instead of its running power demand. This 

total must not be greater than the generator’s specified 

starting power output.

3. 

The total running power demand of all the devices that will 
be connected to any one of the generator’s outlets must 
not exceed the generator’s specified running power output 
or 3,700 W, whichever is the lesser.

PROGRAMMING THE GENERATOR FOR 
REMOTE START

NOTICE

The key fob included with the generator should come already paired 
with the unit. If it does not you can follow the directions below to 
reconnect. If your unit was shipped without a key fob please contact 

our customer support team. 

WARNING

Always make sure the area around the generator is 
clear of bystanders before using the remote start to 

start the generator.

The generator can be started remotely from up to a 
maximum of 109 yards (100 M) away using the remote 
start key fob with new, fully charged batteries in the 
key fob. As the batteries’ state of charge in the key fob 

reduces, the distance to start the generator will also 
reduce.

Before the generator can be started, an initial start-up 

procedure must be performed so the generator and the 

key fob recognize each other. If the key fob is replaced, you 

will need to go through this procedure with the new fob.

1. 

With the battery connected, turn the engine control 

switch to the 

RUN

 position. The yellow battery light 

will illuminate.

START

STOP

1

2

3

1 - Start Button | 2 - Stop Button | 3 - Push Button Start

2.  Push and hold the red 

REMOTE PAIRING

 button 

on the side of the control panel until the push button 

start (3) on the control panel illuminates red, then let 
go (see 17 on page 13 for location of button). 

3.  Press and hold the 

STOP

 (2) button on the remote 

start key fob until the red light on the push button  
start (3) goes out, then let go.  

4.  Press and hold the 

START

 (1) button on the remote 

start key fob until the red light on the push button 
start (3) goes out, then let go.

5.  Press and hold the 

REMOTE PAIRING

 button until 

the red light on the push button start (3) goes out. 
The generator is now programmed to start remotely.