The heating system is liquid, combined with the engine cooling system. The heater radiator is installed in the instrument panel console in a plastic casing and sealed around the perimeter with foam rubber. Air heating depends on the degree of opening of the valve that regulates the flow of fluid through the radiator. The valve is installed at the radiator inlet and is controlled by the upper lever on the center console.
The ME-255 fan electric motor is a collector, direct current, with excitation from permanent magnets. The fan speed is controlled by a three-position switch on the instrument panel. Depending on the selected speed, the electric motor is connected directly to the vehicle's on-board network (high frequency) or through an additional resistor (low frequency). The frequency of rotation of the motor shaft with an impeller at a voltage of 12 V and an air temperature of 25±10°C - 3000±150 min–1. Consumed current at maximum speed - no more than 4.5 A.
The fan impeller is fixed on the motor shaft. The electric motor cannot be repaired; if it fails, it is replaced.
If rainwater enters the passenger compartment through the heater, we clean the drain hole of the air intake box.