System Description

SYSTEM

HEATING SYSTEM : System Description


HEATING CYCLE

Heater Fluid Flow
- The flow of heater fluid passes through the heater pump, PTC element heater, and heater core and then returns to the heater pump.
- The amount of heat generated by the PTC element heater is controlled by the A/C auto amp.

HEATING SYSTEM PROTECTION

- If the below conditions occur in the heating system, operation of the PTC heater is stopped in order to protect the system.
- Heater fluid temperature sensor malfunction
- Communications malfunction between A/C auto amp. and PTC element heater
- Communications malfunction between A/C auto amp. and heater pump