The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Suppose I did the following ? : (advice on Auxiliary fan using radiator sensor) 200 1982

posted by  The Zoo Keeper on  Sun Aug 3 05:15 CST 2003
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Jun 27 08:34 CST 2008
[RELATED]

Without diodes anytime the fan is on, so will the compressor.

The only technically correct method is: Power a relay with a fused +12v wire to the #30 terminal, and ground the #85 terminal; then to activate it: +12v->coolant switch->diode->terminal #85a on the relay AND (added)A/C high pressure/temp switch feed->diode->term #85a.

This will turn the fan ON if EITHER the A/C temp/pressures get high OR the coolant temps get high. Since you ARE NOT relaying on the electric fan for cooling by itself, you do not need a "failsafe" system.
--
JohnG 1989 245 MT @216,500






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.