Converting VN to Climate Control

This is Dylans instructions that he typed up when he did his climate upgrade with an extra step to fix the fan speed issue. This is for upgrading an executive loom (or none climate control loom as in S1 VN's)

I have now done two climate control upgrades - 1 with a statesman loom and now 1 with an Executive loom.

Cheaper to do the upgrade by not replace the loom - from my point of view anyway.

Edit #1 - added photo of the location for the sun sensor hole that needs to be drilled through the top of the dash (while its out)

Edit #2 - updated the install doc.

Edit #3 - updated the install doc (step 26)

 

OK had the unit regassed on Wednesday and seem to have lost vaccuum to the red line some how.

The fan blows on all 3 speeds but the air comming out of the centre vents seems to be very random. I swapped the red and white vac lines over and the red vac line is dead - nothing. I swapped over the solinoid pack - same issue.

The car has cold air but not in your face on full blast as it should be - so just one more little issue to resolve - be it this heater box or a wire issue - not sure yet. (it did blown air to the centre vents when the A/C man gassed her up)

Puzzled for now.......

 

OK switched the wires over that plug into the fan - it was going backwards

Much much better. Now just need to sus out the red vac line

 

All fixed now - cold as Ice and the hot works too. Dylan's install notes missed joining the green and brown wire that was connected to the old standard heaterbox thermostat. Joind that up and away she went.

Job done - the 88 wagon has a fully working climate control installed. A big thanks must go to my younger brother for working over the electrical problems with me.

 

Yep - that it did. But other things got in the way at times The climate install notes will be updated tomorrow as a complete set of notes so the system will work with an exec loom.

Now for the 89 sedan........ should only take a day to do.:whistling

 

He is the car all back together and working.

Just for you Morton

 

I'll do a word document with photos in it - to big to put on here - but will email out to anyone that wants it

 

Yep that it was - but I could not budge the heater box from the fire wall full stop (spent a good half a day at trying to move it). To change the sensor over the heater box must come out far enough from the fire wall to get at the screws that hold the fan case. Just no way of getting to it. Also the std heater box is missing 1 mount for the air mix motor (needs 3). I've fixed up the broken ECC heater box I got for nothing using the good half from the standard box (not the air mix motor side). I did convert the standard heater box base to the 2 drain type from a VS single base. (the broken ECC box was from a VS and had a single drain oin the bottom)

So basicly if you want climate control in the old VN it's heater box out and replace. You cant use a standard box alone to do the job. But you can do it without replacing the loom.:thumbsup:

 

I have a photo of the relay re-wire some place.......

I'll go have a look. Bah the photos are on the home computer only.

Revisit step 25 and 26 from the install instructions and the photo in post 63. (thats what fixed the fan speed issue)

 

Yes the brown and green from the old thermostat go together. (a/c wont kick in if you dont)

I found 1 error in the notes. I had 2 at 87 -

Step 25: Re wire the Blower Fan Relay by connecting the black wire from the fan (very thick wire) to the red wire that was on relay spot No 30. Connect the yellow/black to spot No 86, Light green moves to spot No 85 and make a new earth to spot No 30 (what red was connected to). The violet/yellow stays on spot No 87.

I ran a new black earth wire to the relay because I did not know which wire it was (dash back in by this time).

The violet/yellow stays on 87. It's at the fan end that the violet/yellow and black get swapped over.

 

When I had a look at that photo the yellow/black wire is not clear at all. I should do a colour drawing of the relay to back up the photo.

 

Did you get all 3 fan speeds to work now?