Electrical Systems; Shore Cord - Thor Motor Coach 2009 Mandalay Owner's Manual

ELECTRICAL SYSTEMS

The electrical power supply provided for the motorhome is a dual operating system with
120 Volt AC and/or 12 Volt DC. The 120 Volt power may be provided by either connecting the
motorhome to an outside power source when parked or by use of a motorhome generator.
When the 120 Volt system is operational, power also passes through a system inverter
allowing the full use of all 12 Volt functions in the motorhome.
120 Volt appliances in the motorhome include the refrigerator, ice maker (optional),
air conditioning, TV's, VCR, DVD player, microwave oven, inverter, washer/dryer (optional), and
water heater. The refrigerator and water heater also have the option to run on Propane Gas
when 120 Volt is not available. All other lights and functions are supplied with 12 Volt power.
When it is not possible to access 120 Volt power, the 12 Volt system functions can be
supplied by the coach batteries. The chassis battery is protected by a battery isolator
controller to prevent discharge from excessive electrical consumption when motorhome is not
running. The coach batteries are recharged by the power inverter when the motorhome is
attached to an outside 120 Volt power source or by the generator when it is running and by the
chassis alternator when the chassis engine is running.

SHORE CORD

Connecting the shore cord to a non-grounded or improperly grounded power source can
result in dangerous and possibly fatal electric shock. Due to the potential danger in
failing to heed this warning, the motorhome manufacturer cannot be responsible should
damage, injury, or death result from failure to connect the power cord to a properly
grounded power source.
If shore power service is limited to 15 or 10 amps, use of light duty extension cords and
electrical adapters will create a Voltage loss through the cord and at each electrical
connection. Line Voltage loss and the resistance at each electrical connection can be a
hazardous combination. Damage to sensitive electronic equipment may result.
The motorhome is designed to be connected to a 50 amp service which provides 240
Volts. The 240 Volts comes from two separate 120 Volt lines that are in the shore power
cord. The motorhome should never be connected to any power source that will provide
anything more then 120 Volts on either line coming in. Failure to follow this will result in
serious damage to internal items that are plugged in.
MANDALAY
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