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Home >> Mercedes Benz >> 1994 >> C220 >> Repair and Diagnosis >> External Pages >> Different car >> Section 80 (Climate Control - 140 Chassis) >> Basic Knowledge >> Valve block, location/function - GF83.10-P-2114 >> Valve block, function - GF83.10-P-2114-01B

Valve block, function - GF83.10-P-2114-01B

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Function 

The switchover valves are integrated into the switchover valve block. Various voltage pulses are required in a certain number and sequence to actuate a valve.

The voltage pulses come from the A/C pushbutton control module.

The electronic circuitry in the switchover valve block recognizes the voltage pulses and actuates the corresponding switchover valves to supply vacuum to the vacuum element in question.

The following vacuum elements are actuated:

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