Refrigerant circuit, function · gf8340p2001e · Mercedes-Benz WIS

GF83.40-P-2001E

Refrigerant circuit, function

23.1.98

MODEL 202
with CODE (580) Air conditioning or, for USA, Tempmatic A/C
with CODE (581a) Air conditioning (automatic)

S83.30-2034-12

1 A/C compressor
2 Condenser
3 Receiver/drier
4 Expansion valve
5 Evaporator

A High pressure (gaseous)
B High pressure (liquid)
C Low pressure (liquid)
D Low pressure (gaseous)

The A/C compressor (1) is driven by the engine and compresses the gaseous refrigerant which heats up and then flows into the condenser (2).
The heat from compression is absorbed from the refrigerant by the surface of the condenser (2). The refrigerant liquefies as it cools.
Chemical and other impurities are removed as the refrigerant flows through the receiver drier (3).
The expansion valve (4) sprays the cooled, liquid refrigerant into the evaporator (5) located in the fresh air flow and the refrigerant evaporates. This evaporation process absorbs heat from the fresh air flowing through the system of tubes and honeycombs, cooling the air.

The entrained moisture in the air is condensed out and drained to the outside. The air is dried. The A/C compressor (1) sucks in the refrigerant, which has become gaseous from absorbing heat, and compresses it again.

When the engine is running and the blower switched on, cooled air can be routed into the passenger compartment through various outlet openings. The cooling intensity depends on the passenger compartment temperature setting and the blower output.

Auxiliary fan, location/purpose/function	Engine 111 up to 31.05.96 Engines 111.944/975 as of 01.06.96 Engines 104, 112, 601, 604, 605	GF83.40-P-2162E
Auxiliary fan control module, location/purpose/function	Engines 104, 112, 601, 604, 605 as of 01.09.95 Engine 111 as of 01.09.95 up to 31.05.96 Engines 111.944/975 as of 01.06.96	GF83.40-P-2163E
Auxiliary fan preresistor, location/purpose/function	up to 31.08.95	GF83.30-P-2114E
Auxiliary fan relay, location/purpose/function	up to 31.08.95	GF83.30-P-2115E
Engine/A/C electric fan, location/purpose/function	Engine 111 except 111.944/975 as of 01.06.96 Engine 611	GF83.40-P-2151E
Engine/A/C electric fan control module, location/purpose/function	Engine 111 except 111.944/975 as of 01.06.96 Engine 611	GF83.40-P-2167E
Condenser, location/purpose/function		GF83.40-P-2152A
Evaporator, location/purpose/function		GF83.40-P-2164A
Receiver/drier (Tempmatic), location/purpose/function	 only with code 580	GF83.30-P-2120A
Receiver/drier, location/purpose/function	 only with code 581a	GF83.40-P-2153A
Expansion valve, location/purpose/design/function		GF83.40-P-2123A
Refrigerant temperature sensor, location/purpose/function	 only with code 581a	GF83.40-P-2154A
Coolant temperature sensor air conditioning, location/purpose/function		GF83.40-P-2155A
Refrigerant pressure sensor, location/purpose/function		GF83.40-P-2156A
A/C compressor, location/purpose/design/function	up to 31.08.95	GF83.55-P-2100E
	as of 01.09.95	GF83.55-P-2100A
Electro-magnetic clutch, location/purpose/design/function		GF83.55-P-2101A
A/C compressor speed sensor, location/purpose/function	Model 202 up to 08/95 with engines 104, 111, 601, 604 and 605	GF83.55-P-2105E
A/C compressor microswitch, location/purpose/function	Model 202 up to 08/95 with engines 601, 604 and 605	GF83.55-P-2106E
Evaporator temperature sensor, location/purpose/function		GF83.57-P-2109A

Referenced documents

gf8330p2114e Auxiliary fan preresistor, location/task/function
gf8330p2115e Auxiliary fan relay, location/purpose
gf8330p2120a Receiver/drier (Tempmatic A/C), location/purpose/function
gf8340p2123a Expansion valve, location/purpose/design/function
gf8340p2151e Engine/air conditioning electric fan, location/purpose/function
gf8340p2152a Condenser position/task/function
gf8340p2153a Receiver, location/purpose/function
gf8340p2154a Refrigerant temperature sensor, location/purpose/function
gf8340p2155a Air conditioning coolant temperature sensor, location/purpose/function
gf8340p2156a Refrigerant pressure sensor, location/purpose/function
gf8340p2162e Auxiliary fan, location/purpose/function
gf8340p2163e Auxiliary fan control module, location/purpose/function
gf8340p2164a Evaporator, location/purpose/function
gf8340p2167e Engine/AC electric fan control module, location/purpose/function
gf8355p2100a A/C compressor, location/purpose/design/function
gf8355p2100e A/C compressor, location/purpose/design/function
gf8355p2101a Electromagnetic clutch, location/purpose/design/function
gf8355p2105e Speed sensor, location/purpose/function
gf8355p2106e Microswitch, location/purpose/function
gf8357p2109a Evaporator temperature sensor, location/purpose/function