How to Wire a Spal Electric Fan for Use With an a/c Compressor

–

  1. Default How to setup fans to come happening with A/C?

    I give an HP ECU and the I/O cable. I've setup the fans to number on at 185� & off at 175�. Simply how do I set them to seed on when I turn the A/C on?

  2. Default

    You can either hydrant off of the compressor cling to involvement wire to trigger the electric lover relay's coil (with a kidney-shaped diode to prevent backfeeding the HEFI trigger wire/ECU). Or conducting wire an A/C pressure change Stimulant to expend as a Switched/Sensing element Input Trigger for a custom Blower Output (Inputs/Outputs ICF).

    May God's seemliness bless you in the Lord Jesus of Nazareth Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232�-244� duration/.623" lift/114� LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Holley Dominator MPFI & DIS, 36-1 crank trigger, 1x cam sync, 200A 3G alternator, Optima Bloody battery, 100HP progressive dry target-port NOS, R134a A/C, Spal dual 12" fans, Frostbite 3-essence aluminum radiator, Pypes dual 2.5" exhaust, cross-country X-pipe, shorty headers, -6AN fuel system of rules plumbing, Walbro 255 LPH in-tank pump &ere; Pro-M -6AN hanger, S&W subframe connectors, BMR superior & lower torsion loge reinforcements, LenTech Strip Terminator wide-ratio AOD, 3000 RPM converter, B&M Hammer shifter, Stifflers trans crossmember &adenosine monophosphate; driveshaft safety loop, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok derived function, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster &adenosine monophosphate; M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

  3. Default

    Quote To begin with Posted by Danny Cabral View Post

    You can either tap forth of the compressor clutch troth telegraph to trigger the electric lover relay's curlicue (with a simple diode to prevent backfeeding the HEFI trigger wire/ECU). Oregon wire an A/C pressure switch Input to use as a Switched/Detector Input Trigger for a custom Electric Fan Output (Inputs/Outputs ICF).

    Easiest thing is to just create an A/C Stimulus from the A/C compressor itself. Just utilization a relay and use the A/C compressor to send voltage to the #86 terminal of the relay. Then you can have any grounding point through the #85 & #30 pins, taking pin #87 to the Holley. This gives you a "run aground" Input at the Holley.

    Make a custom Input in the I/O ICF. So make an Output in the I/O ICF for your fans, instead of using the generic fan settings from the Basic I/O in the System ICF. Then you can have the fans hinge upon & off away duple things, like temperature, RPM (I like to make fans cut when the engine is not running, but the key is still on). And of course of study, you can then use your A/C compressor to complain the fans happening as advantageously.

  4. Default

    Hunky-dory I like the way this sounds if I am understanding it even off. Are you saying as an example, I tail set a Output that will not only work with the Input from the compressor, simply it will likewise allow the fans to be set to turn on with just a temperature scope such as 190�? And maybe regular turn out at an Rev low-level enunciat 400, so the fans would be off with the key-connected and locomotive engine not running?

  5. Default

    Correct. You can set it raised to come in with a switched Outturn, or come on with temperature, and even turn inactive supported Rev. All using the Inputs/Outputs ICF.

  6. Default

    I have a cognate call into question. I have my fans controlled via PWM−. What I want to do is have the fans kick on at 50% when the A/C is on. Whatsoever suggestions?

    Saint Andrew

  7. Default

    I had a similar wonder. I wish to control the same fans with two different tables. One "CTS vs VSS", and the other "A/C Insistence vs VSS", and have the highest prise from either table ascertain the lover speed. I lavatory configure this with 2 freestanding PWM Outputs, simply you can't feed two PWM signals to the one controller. What we really call for is a three-axis table.

    If non using PWM, you can wire three relays to use for each one lover motor's opposition to run the fans at either one-half speed or full, depending on two ground outputs from the ECU. The wiring diagrams at a lower place are from the VE Commodore/G8 workshop manual:

    Below is the active circuit on low speed:

    And this is the active circuit with some outputs grounded (utmost speed):

    Andrew

  8. Default AC fans on with Atomic number 89 compressor Kick

    Can you post pics or screenshots of the how to do this?
    Easiest thing is to just create an A/C Input from the A/C compressor itself. Just enjoyment a relay and use the A/C compressor to air potential to the #86 terminal of the relay. Then you can take whatever grounding point through the #85 & #30 pins, taking pin #87 to the Holley. This gives you a "ground" Input at the Holley.

    Give a custom Input in the I/O ICF. Then make an Output in the I/O ICF for your fans, instead of using the generic fan settings from the Basic I/O in the System ICF. So you can have the fans turn on & off by multiple things, the likes of temperature, RPM (I like to build fans turn off when the engine is not lengthwise, but the key is still on). And of course, you can and so use your A/C compressor to kick the fans connected too.

    Ok found that V5 package already has this as an selection assembled in .

    Thanks Max

    Last edited by pvt-maximus; 02-17-2019 at 02:33 PM. Reason: found an serve

  9. Default

    May God's grace bless you in the Maker Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232�-244� continuance/.623" lift/114� LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Holley Dominator MPFI & DIS, 36-1 crank trigger, 1x Cam River sync, 200A 3G alternator, Optima Scarlet barrage, 100HP innovative dry direct-port NOS, R134a A/C, Spal dual 12" fans, Cryopathy 3-gist aluminum radiator, Pypes dual 2.5" exhaust, cross-country X-pipe, shorty headers, -6AN fuel system plumbing, Walbro 255 LPH in-army tank pump & Pro-M -6AN hanger, S&W subframe connectors, BMR upper &adenylic acid; depress torque boxwood reinforcements, LenTech Strip Terminator wide-ratio AOD, 3000 Rev converter, B&M Hammer gearshift, Stifflers trans crossmember & driveshaft safety loop, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra promoter & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

How to Wire a Spal Electric Fan for Use With an a/c Compressor

Source: https://forums.holley.com/showthread.php?18944-How-to-setup-fans-to-come-on-with-A-C

0 Komentar

Post a Comment



banner