Monaco Executive 2005 - Stand-By Operation; Battery Charging

Electrical Systems - House --- Section 8
The Executive 2005
353
Stand-by Operation
The inverter can be set-up for stand-by power operation. For example: If AC input is discontinued
to the motorhome, the inverter will automatically provide AC power. When AC power resumes, the
inverter will automatically return to "stand-by" mode. Battery charging is not effected by stand-by
operation.
To Activate Stand-by Mode:
• Press the red ON/OFF button until the cursor indicates ON.
NOTE:
Remember to disable stand-by operation when not in use. House battery power may
be accidentally consumed.
NOTE:
In All Electric motorhomes, the inverter supplies the power necessary to operate the
refrigerator if shore power is not available or not operating from the generator.
Battery Charging
Whether hooked to shore power or operating from the generator, the internal battery charger of
the inverter will charge the house batteries. Battery charging does not begin automatically when AC
power is available. The inverter must be turned on to begin battery charging. The time it takes to
charge the batteries to a full state of charge varies greatly. It can take several hours or even days
depending on the actual state of charge of the batteries and DC power consumption.
The inverter uses a three stage charging cycle. The first stage is "bulk" charge. The bulk charge will
bring the DC voltage up high, initially between 14.2 and 14.6 Volts depending on ambient temperature.
Voltage and current control the bulk charge cycle. The length of time the inverter is in the bulk charge
cycle will vary with the state of charge of the batteries. The second stage is the "absorb" cycle. The
battery voltages in the absorb cycle are the same as the bulk charge cycle between 14.2 and 14.6
Volts. The length of the absorb cycle is a timed event determined by the menu item Set Absorption
Time under the menu heading number 9, Inverter Setup. The final charging stage is the "float"
charge cycle. Approximately 80% of the charging cycle is completed by this time. The float charge
voltage is generally around 13.3 to 13.7 Volts. The last 20% of the charge cycle requires the most
amount of time.
To Begin Battery Charging:
• Hook to shore power or start the generator.
• Press the red button on the inverter remote until the cursor indicates either CHG or On.