BEARING ASSEM. 4D7670 - Caterpillar

Components of the HVAC System
A/C Compressor
Condenser coil
Receiver-dryer
Expansion valve
Evaporator core
HVAC evaporator thermostat switch
Accumulator
HVAC water valve continuous signal (electronic rotational actuator)
Heater coil
A/C high/low pressure switch
A/C low-pressure switch
Cabin Air filter
Louver temperature sensor
HVAC operator cab controlsA/C Compressor
Illustration 1 g03577698The A/C compressor is located on the right-hand side of the engine underneath the alternator.Receiver /Dryer
Illustration 2 g03577697The receiver dryer is located under the A/C service shroud on the right side of the machine next to the cab.Expansion Valve
Illustration 3 g03577716The HVAC expansion valve is located in the coolant line behind the receiver/dryer.High/low Pressure Switch
Illustration 4 g03577718The HVAC low-pressure switch is located in the A/C line near the compressor.Low Pressure Switch
Illustration 5 g03577719The HVAC low-pressure switch is located in the A/C line near the compressor.Evaporator Coil
Illustration 6 g03577720The evaporator coil is located inside the exchange box under the A/C shroud on the right-hand side of the machine next to the cab.HVAC Water Valve Continuous Signal (Electronic Rotational Actuator)
Illustration 7 g03577721Heater Coil
Illustration 8 g03577722The heater coil is located next to the evaporator coil in the exchange box next to the cab on the right-hand side of the machine.Evaporator Thermostat
Illustration 9 g03398542The evaporator thermostat is located on top of the exchange box and between the evaporator coil and the heater coil.Louver Temperature Sensor
Illustration 10 g03398543The louver temperature sensor is located in the duct work on the lower right-hand side of the cab.HVAC Blower Motor
Illustration 11 g03398559The HVAC blower motor is located on the right-hand side of the cab.HVAC Operator Cab Controls
Illustration 12 g03398561The HVAC operator cab controls are located on the right hand upper corner of the cab.