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Jayco Precept - Heat Pump, Roof Vent, and Fan Control

Jayco Precept
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
The shore power cord is designed to continuously carry the 50-amp current ow required to
power each leg of the electrical system. It also creates a critical ground connection between
the vehicle electrical system and the campground shore power receptacle.
Always test the external power source (i.e., the campsite power receptacle or electrical box)
with a ground monitor before connecting your power cord to it. If the ground monitor indi-
cates ‘reverse polarity’ or an ‘open ground’. 
Regularly inspect the shore power cord for cuts, cracks, worn insulation and other damage.
Have the power cord replaced immediately if problems exist.

When connecting appliances to the electrical system, 120-volt power usage is limited to 50
amps per electrical system leg for a total of 100 amps. Operating appliances collectively
places an added load on your 120-volt electrical system.
A circuit breaker “trip” may occur if you overload the recreation vehicle and/or campground
electrical system. The amperage rating of individual appliances can be calculated by di-
viding appliance wattage consumed (normally listed on the appliance) by nominal design
voltage (120 for a 120-volt appliance). For example: 1200 watts divided by 120-volts equals
10 amps.
Generator
Your motorhome may be equipped with an LP or diesel powered generator. In certain gaso-
line engine motorhomes, the generator will be gasoline powered as well. The generator
produces 120/240-volt power compatible with the motorhome electrical system. It can be
used to power the entire motorhome when 120/240-volt shore power is not available.

Vegatouch systems include an AGS screen to program your generator to automatically start
and stop at specied times. The AGS button is located on the Home screen of the Vegatouch
display. Please refer to your Vegatouch User Guide in your warranty portfolio.

For more information see the Automatic Transfer Switch (ATS) section.
 Certain Class A motorhomes may be equipped with a
Vegatouch touchscreen system. The generator instructions can be
found in the Vegatouch User Guide included in your warranty portfo-
lio or online at http://www.reyint.com.
 The diesel (or gas) generator requires 12-volt power from
the house auxiliary batteries to start, and draws diesel fuel (or gas)
to operate from the chassis fuel tank. If the fuel level in the chassis
fuel tank drops to or below ¼ full, the generator will automatically
shut off and cannot be re-started until the fuel tank is lled to above
¼ full.



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