| This high-pressure sender -G65- is fitted in place of the
air conditioning system pressure switch -F129-. |
| When voltage is applied to the high-pressure sender, it
generates a square wave signal, or data telegram. This signal
changes when the pressure in the system changes. |
| Using this signal, the control units that are connected
in-line (radiator fan control unit, engine control unit,
operating and display unit for Climatronic air conditioning
system -E87- or Climatronic control unit -J255- etc.) calculate
the pressure in the refrigerant circuit and actuate the radiator
fan, the engine, the air conditioning system magnetic coupling
-N25- accordingly and/or alter actuation from the air
conditioning system compressor regulating valve -N280-. |
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Questions & answers
High-pressure sender -G65 — Volkswagen Golf Mk7
What does the Golf Mk7 high-pressure sender -G65- do?
Replaces the mechanical pressure switch -F129- on newer systems. Sends continuous pressure data to the AC control unit for precise fan speed and compressor control.
This pressure switch has 3 functions:
1. Switches radiator fan to next higher speed when pressure
increases in refrigerant circuit (approx. 16 bar).
...
WARNING
Danger of freezing injuries.
If refrigerant circuit has not been evacuated,
refri ...
