Where is the air conditioning and heating valve of Xugong 75 small excavator?

The air conditioning heating valve of Xugong 75 small excavator is located at the joint between the engine and the air inlet pipe and air outlet pipe of the heater. Valves are a point that many drivers tend to overlook. In summer, because there is no need for heating, many car owners will close the valve. There must be no warm air when driving the heated cab at this time. If there is no warm air, you can check whether this warm water switch is turned on first, or you can feel whether there is hot air in the water pipe by hand. If you can't find this switch, you can look along the two warm water pipes under the cab.