WATER HEATER SYSTEM OPERATION [FULL-AUTO AIR CONDITIONER]SM1935304
WATER HEATER SYSTEM OPERATION [FULL-AUTO AIR CONDITIONER]
id0740a1117200
Starting/stopping Conditions
• The water heater system will start to operate when all of the following conditions are met:
-
― Ambient temperature
less than 5 °C {41 °F}.
― Water temperature
less than 60 °C {140 °F}.
― Engine revolutions
more than 501 rpm.
• The water heater system will stop to operate when all of the following conditions are met:
-
― Ambient temperature
more than 11 °C {52 °F}.
― Water temperature
more than 78 °C {172 °F}.
― Engine revolutions
less than 400 rpm.
Normal Operation
• The CPU in the water heater unit outputs a signal to blower fan and fuel pump, which then deliver air and fuel to the unit.
• Within the unit, fuel is vaporized and mixed with air, and then sent to the combustion chamber.
• The mixture is ignited, by a spark from the glow plug, in the combustion chamber.
• Engine coolant temperature is raised as it circulates along the outside of the combustion chamber.
Full/half Switching
• Depending on the engine coolant temperature, the CPU sets the flame to higher full or half strength settings.
