DRESSTA 515C, Руководство оператора, Страница: 75 / 205

SECTION 4
OPERATING
Page 26
OM515C520C99/1E DRESSTA
CAB HEATING AND VENTILATION
38 39 40 41 42 43 44 45
Fig. 4.19. Side Control Panel
38. Fan Control Switch
39. Heater/Air Conditioner Temperature Control Knob
40. Main Switch
41. Windshield Wiper Switch 42. Windshield Washer Switch
43. Defroster Fan Switch
44. Rear Window Wiper Switch (if equipped)
45. Rear Window Washer Switch (if equipped)
For description of controls refer to Par. 4.3.
4.7.3. AIR CONDITIONER
Fig. 4.20. Block Diagram of A/C Connections
The wheel loader may be equipped with air conditioner to reduce air temperature and relative
humidity inside the cab. An air conditioner consists of the following principal components:
1. Compressor – V-belt driven thru pulley mounted on the engine
2. Condenser – radiator mounted
3. Dehumidifier – mounted on a bracket on the RH side of the rear frame
4. Evaporator – RH side cab wall mounted
5. Expansion valve – integrated with the evaporator
The a/m components are connected with hoses 6 – 9. The A/C system is filled with R-134A gas.
NOTE: If A/C system refilling is required contact Construction Equipment Authorized Distributor.
The system must be filled in accordance with the manufacturer’s instructions.