Op. MA. 510-00 b
17
WIRING DIAGRAMS’FOR COOLING FAN AND AIR-CONDITIONING SYSTEM CONTROL
SPECIAL FEATURES
From 1977 models the fast-idle electro-valve ( 9) is manufactured by 1, PIERBURG 1).
When it is not enerqized the electro-valve lets low pressure through towards the carburettor capsule (fast
idle ) contrary to the (1 WEBER )) electromvalve fitted previously.
Fitting the N PIERBURG )) electro-valve necessitates fitting a relay (8) which is enerqized when the air-
conditioning system is operating This relay, with its
c( o/)t/i 1) contact cuts off supply to electro-valve (9)
which therefore produces fast idle.
DESCRIPTION OF COMPONENTS :
1
- Heater relay ( .s/o~/~/Q~c/ )
2 - Air blower ( .S~n~~dnr(i i
3 - Speed control for blower ( S/nr/clnrt/ J
4 - Regulating thermostat
5 - Air-conditioning switch
6
- Pressure switch ( 01,
dc,-rt,cr/t,rit,,q lnr~k )
7
- Compressor clutch
8 - Control relay for fast idle melectro-valve
9 - Fast idle electro-valve
lo-
Relay for L.H. supplementary electric fan
f nip-cor/rli/ior/illS )
1
I- Supplementary L.H. electric fan ( foolir2~~ )
12-
Relay for L.H. supplementary electric fan ( cooli~/g )
?3-
Control thermostat ( on radiator ) for electric fans ( Stnr~d& )
14- Relay for R.H. electric fan ( Stmzdnrrl )
15 Electric cooling fan ( Stal?dn~/ )
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