PRONAR PRONAR 5110, Руководство оператора, Страница: 38 / 122

Section 4: STEERING AND OPERATING CONTROLS
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VENTILATION, HEATING AND CAB AIR CONDITIONING SYSTEM
Figure 4-22 Ventilation, heating and cab air conditioning system.
1 – switch for air draft inlet speed control from outlets in cab upper panel; 2 – switch controlling inlet
temperature of cold air from outlets in cab upper panel (option – air conditioning); 3 - guides (adjustable)
of air outlets in cab a panel upper panel; 4 - guides (adjustable) there are outlets by steering column; 5 –
switch setting inlet temperature of hot air from outlets by steering column, 6 - switch controlling speed of
air from outlets by steering column.
System enables ventilation and heating cab in low temperatures, or cooling (air conditioning)
cab at higher temperatures with the aid of guides in forward cab console.
A) CAB VENTILATION AND HEATING:
Connecting fan blower
Connecting blower takes place by connecting fan with knob 1 located in upper cab panel and 6
(Figure 4-22) placed to the right of the steering column.
Knob connecting fan serves as fan speed regulator, controlling volume of air output.
Connecting heater and adjustment of temperature.
Heater knob 5 (Figure 4-22) enables smooth temperature adjustment of hot air from heater.
Turning heater knob to the right or left side lowers or increases temperature of air coming from heater
to air outlet.
ATTENTION! It is not recommended to apply water in engine cooling and cab heating system.
Antifreeze liquid should be applied. Engine cooling and heating system in PRONAR tractors
are filled with "BORYGO ECO” coolant liquid .
ATTENTION: If the engine cooling and heating system is filled with water, then at lower
ambient temperatures it should be removed from the engine cylinder block and
radiator and from cab heater.
B) AIR CONDITIONING OF CAB:
Connecting air conditioning
Air conditioning only works if:
- vehicle engine operates driving air-conditioning compressor,
- thermostat is connected, and temperature setting allows connection of compressor clutch,
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