Reply
 
Thread Tools Display Modes
 
Old 09-23-2018, 06:16 PM   #1
Orv
Senior Member
 
Join Date: Sep 2018
Posts: 330
Garage
Looking for info on a very old Starcool system

1990 Ford E250. It has an early Starcool system that piggybacks on the dash A/C's blower and evaporator.

The dash A/C works OK while driving. When the belt-driven compressor kicks in, so does the fan on the extra Starcool condenser under the driver's side door.

What doesn't work is any of the shore power stuff. When I turn on the 20A breaker and turn down the thermostat, there's a quiet click from the relay box under the rear seat, but nothing else happens.

Found lots of info in the forum, but it's mostly for Starcool III, which is different from my system. I could use a schematic, because the wiring is surprisingly complicated.
__________________

Orv is offline   Reply With Quote
Old 06-12-2019, 02:56 PM   #2
Junior Member
 
Join Date: Jun 2019
Posts: 8
I have a Starcool II schematic, would you like a pic?
__________________

96SMBguy is offline   Reply With Quote
Old 06-12-2019, 03:07 PM   #3
Orv
Senior Member
 
Join Date: Sep 2018
Posts: 330
Garage
Yes, I'd appreciate that. I don't know if StarCool II is the one I have, but I should be able to tell pretty quickly if the schematic resembles what's installed.
__________________
N8SRE
1990 E-250 Sportsmobile w/ penthouse top, converted when new by SMB Texas.
Orv is offline   Reply With Quote
Old 06-12-2019, 04:11 PM   #4
Junior Member
 
Join Date: Jun 2019
Posts: 8
Starcool II Schematic

Please see attached.
Attached Thumbnails
image.jpg  
96SMBguy is offline   Reply With Quote
Old 06-12-2019, 04:15 PM   #5
Junior Member
 
Join Date: Jun 2019
Posts: 8
There should be two attachments, if you only see one let me know.
96SMBguy is offline   Reply With Quote
Old 06-12-2019, 04:42 PM   #6
Orv
Senior Member
 
Join Date: Sep 2018
Posts: 330
Garage
I only see one attachment.


This looks different from the system I have, unfortunately -- the one I have operates the dash A/C blower when parked, instead of having a separate evaporator and blower. It seems they went through several revisions with this system.


I actually have the original manual for my van, but it only describes the operation of the system in general terms -- it doesn't have an electrical schematic or other technical info.
__________________
N8SRE
1990 E-250 Sportsmobile w/ penthouse top, converted when new by SMB Texas.
Orv is offline   Reply With Quote
Old 08-16-2020, 03:44 PM   #7
Orv
Senior Member
 
Join Date: Sep 2018
Posts: 330
Garage
I finally decided to just trace the whole system out by hand. I'll attach the resulting diagrams in case anyone else needs them -- please excuse my handwriting. Note that these aren't complete -- there are a few mysteries left:
- Where does the brown wire get power? It seems to get it from the stock HVAC system but I've been unable to figure out where.
- What does the blue wire do? I think it shuts the system down if the ignition is on, so the two compressors can't fight, but I didn't think to test this theory before buttoning everything back up.
The problem with my system turned out to be a single relay -- the one under the dash had a burned out coil, preventing the system from switching from engine mode to external power mode.
Attached Thumbnails
IMG_1240.jpg   IMG_1241.jpg  
__________________

__________________
N8SRE
1990 E-250 Sportsmobile w/ penthouse top, converted when new by SMB Texas.
Orv is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 12:29 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×