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Section 6: Electrical System
Inverter/Charger
Your motorhome may have multiple 12-volt
DC to 120-volt AC inverter/charger(s) in-
stalled that are designed to temporarily run
selected 120-volt appliances from house aux-
iliary battery power.
The inverter/charger(s) is located between the
chassis frame rails in the cargo storage area,
the controls are operated from the touchscreen.
120-volt circuit breakers protecting inverter/
charger output circuits are located in the sub-
panels(s) under the bed. Circuit breaker label-
ing near the sub-panels indicate which appli-
ances can be operated from inverter/charger
power. Refer to
Power Cut Out Switch
section for location of inverter disconnect switches.
Inverter/charger 120-volt AC output is a pure sine wave type. The inverter/charger will
operate most appliances, tools and other 120-volt AC equipment.
The inverter/charger also functions as a multi-stage 12-volt power converter/battery charger
when the motorhome is connected to 120-volt shore power or when the generator is run-
ning. In this mode the inverter/charger charges the house auxiliary batteries. Chassis batter-
ies can also be charged either from shore power or using the generator
Inverter/Charger Remote Controls
To enable automatic inverter operation during power blackout
or brownout conditions leave
the inverter/charger(s) in “INVERTER” mode at all times. The inverter/charger is in “IN-
VERTER” mode when the green “INV” light on the remote control panel is illuminated.
When in “INVERTER” mode the inverter/charger(s) will be on standby when the mo-
The inverter/charger generates heat while operating and needs unrestricted
air flow for proper cooling. Do not store anything around or on top of the
inverter/charger that would restrict air flow around it.
NOTE:
Refer to the touch screen user guide in your warranty packet or
online at http://www.fireflyint.com for specific instructions.
The shore power cord should be unplugged when the recreation vehicle is left
unattended
When you are ready to leave, reverse the power cord connection process. Use care to pre-
vent damaging the power cord electrical connection pins when connecting or disconnecting
the shore power cord. Grasp the plug to remove the power cord from the outlet; do not
unplug it by pulling on the cord.
Maintenance
Inspect the power cord for cuts, cracks and worn insulation. Have the power cord replaced
immediately if these symptoms are noticed.
Table of Contents
Maintenance Record
Summary of Contents for Jayco Precept 2021
Page 1: ...0181976 2021 2021 Owner s Manual A subsidiary of Thor Industries Inc...
Page 2: ......
Page 8: ......
Page 22: ...20 Section 1 Warranty Service Notes Table of Contents Maintenance Record...
Page 32: ...30 Section 2 Occupant Safety Notes Table of Contents Maintenance Record...
Page 38: ...36 Section 3 Pre Travel Information Notes Table of Contents Maintenance Record...
Page 96: ...94 Section 6 Electrical System Notes Table of Contents Maintenance Record...
Page 106: ...104 Section 7 Fuel Propane System Notes Table of Contents Maintenance Record...
Page 136: ...134 Section 9 Heating Cooling Notes Table of Contents Maintenance Record...
Page 148: ...146 Section 11 Electronics Notes Table of Contents Maintenance Record...
Page 164: ...162 Section 13 Exterior Notes Table of Contents Maintenance Record...
Page 168: ...166 Section 14 Travel Camping Storage Checklists Notes Table of Contents Maintenance Record...
Page 172: ...170 Section 15 Additional Information Notes Table of Contents Maintenance Record...