Volkswagen Polo Service & Repair Manual: Refrigerant Circuit Pressures and Temperatures
WARNING
When performing work on refrigerant circuit, observe
all generally applicable safety precautions and pressure
vessel regulations. |
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The pressures and temperatures in the refrigerant circuit
depend on the current operating conditions (such as engine RPM,
coolant fan level 1, 2 or 3, engine temperature, A/C compressor
on or off) as well as on the effects of outside influences (such
as outside temperature, humidity, desired cooling output). |
In vehicles with A/C Compressor Regulator Valve -N280-, the
pressure is modified on the low pressure side by the valve. |
For this reason, values indicated in the following table are
valid only as reference points. They are attained at an engine
speed of 1,500 to 2,000 RPM and an ambient temperature of 20 °C
(68 °F) after about 20 minutes. |
The connections provided for measuring pressure for the
manometer battery are located in the vehicle-specific
refrigerant circuit. |
At 20 °C (68 °F) with the engine not running, the pressure
in the refrigerant circuit is 4.7 bar (68.17 psi). Refer to
→ Chapter „Refrigerant R134a Vapor Pressure Table“. |
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Function:
The Evaporator Vent Temperature Sensor -G263- or Evaporator
Temperature Sensor -G308- determines the temperature behind the
evaporato ...
A-Low pressure side of refrigerant circuit.
B-High pressure side of refrigerant circuit.
Component
...
Other materials:
Wear Spots
A wear spot is a flat spot on the tread of the tires that
can be caused by extreme braking maneuvers on subsurface such as
asphalt.
At the same time a tire during the braking maneuver is
rubbed at selective points which ...
Tires, Rolling Noises, General Information
Rolling noise perceived by the human ear is caused by
vibrations transmitted from the noise source to the ear via the
air.
Here we are interested in noises created by certain
characteristics of the tires as well as the effects of rolling ...
Two-Part Fine Filling Paste, Flexible
Definition:
Two-Part Fine Filling Paste, Flexible -LSP 787 100 A1-
Edition 07/2010
Product Description
The Two-Part Fine Filling Paste, Flexible -LSP 787 100 A1-
is a two component filler paste with hig ...
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