Operation GV 6600Awc_tx000709gb.fm 223.11 Voltage SelectionSee Graphic: wc_gr003960The voltage selector switch (VSS) (e) switches the generator outputbetween the single-voltage mode (120V) and the dual-voltage (120/240V) mode.In single-voltage mode, the full rated power of the generator is sharedbetween the two 125V GFI duplex receptacles and the 125V twist-lockreceptacle.In dual-voltage mode, generator power is shared between the 125/250V twist-lock receptacle, the 125V GFI duplex receptacles, and the125V twist-lock receptacle. To achieve full power, use only the 125/250V twist-lock receptacle. Note: Only use the 125/250V twist-lockreceptacle (j) when the VSS is in the 120V/240V position.NOTICE: NEVER change the position of the VSS when the mainbreaker is in the ON position. This can cause arcing and can damagethe generator. Turn all tools and appliances off and place the maincircuit breaker (d) in the OFF position before changing the position ofthe voltage selector switch.3.12 Engine Auto IdleSee Graphic: wc_gr003960The auto idle switch (b) automatically reduces engine speed after allappliances or tools attached to the generator have been turned off.The engine automatically returns to full speed when a tool or applianceis turned back on.To turn the auto idle feature on, push the auto idle switch to “AUTO”.The AUTO setting is recommended while the generator is running tominimize fuel consumption. To avoid extended engine warm-upperiods, keep switch set to “OFF” when starting the engine and untilthe engine reaches operating temperature.