BELARUS-1523/1523
В
/1523.3
/1523В.3
Construction and Operation
169
- condenser – before the
ОНВ
radiator;
- drying filter – on the condenser frame;
- pressure sensor – on the drying filter;
- heater-cooler – under the roof, above the ventilation compartment panel;
- cold air control and fan switch – on the panel of the upper compartment;
- service valves – on the fittings near the compressor and drying filter.
1 – condenser and drying filter; 2 – compressor; 3 – cooler-heater; 4 – quick-release connectors.
The climatic-control system begins func-
tioning in the air conditioning mode when
the engine is running, the desired rota-
tional speed of the fan is set be means of
the switch (1) and the switch (2) is set to
the beginning of the blue scale.
When it will be done, the voltage is
applied to the electromagnetic clutch of
the compressor via control circuit. The
clutch is engaged to transmit the rotation
from the engine crankshaft pulley to the
compressor shaft. The compressor
pumps the coolant through the air condi-
tioning system components. At the same
time, the coolant absorbs the heat from
the air passed through the evaporator-
radiator monoblock (air cooler-heater)
and then releases the heat into the envi-
ronment via condenser.
The air conditioning system is capa-
ble of maintaining automatically the
specified temperature, which is set by
turning the switch (2) controlling the
thermostat. When turning the switch
clockwise, the temperature decreases
and when turning the same anti-
clockwise – increases. The protection
against critical modes is ensured by the
pressure sensor and thermostat. The
sensor switches the system off in case
of overpressure (exceeding 26+2
kg/cm
2
) or insufficient pressure (below
2.1±0.3 kg/cm
2
). The thermostat
switches the system off in case of ex-
cessive decrease of the temperature of
the cooling section of the radiator mon-
oblock. The system capacity is con-
trolled by means of the fan rotational
speed and thermostat. In this case the
compressor can be operated either con-
tinuously or cyclically.
Summary of Contents for 1523
Page 1: ...BELARUS 1523 1523В 1523 3 1523В 3 1523 0000010 РЭ OPERATING MANUAL 2009 ...
Page 70: ......
Page 72: ......
Page 76: ......
Page 77: ...BELARUS 1523 1523В 1523 3 1523В 3 Construction and Operation 73 ...
Page 78: ......
Page 124: ......
Page 131: ......
Page 137: ......
Page 151: ......
Page 160: ......
Page 162: ...BELARUS 1523 1523В 1523 3 1523В 3 Construction and Operation 152 ...
Page 163: ......