| Author |
 Topic Search  Topic Options
|
Ron(AB) 
Orange Level
Joined: 27 Dec 2009
Location: Alberta
Points: 959
|
 Post Options
 Thanks(0)
 Quote  Reply
 Topic: 8070 air cond pressure switch
Posted: 15 Sep 2017 at 2:45pm |
I'm installing a new compressor (dryer & exp valve too) and was wondering if it was normal for the compressor not to engage with the key, fan, and ac turned on? Just want to make sure everything works before putting in the 12a. 
|
 |
|
Sponsored Links
|
|
|
Ron(AB)
Orange Level
Joined: 27 Dec 2009
Location: Alberta
Points: 959
|
Post Options
Thanks(0)
Quote Reply
Posted: 15 Sep 2017 at 2:47pm |
|
I was thinking the pressure sensor needs some charge (pressure) to ground the mag.
Is that true?
|
|
CAL(KS)
Orange Level
Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3800
|
Post Options
Thanks(0)
Quote Reply
Posted: 15 Sep 2017 at 2:56pm |
|
if that system has a low pressure switch it wont engage the pump until there is enough pressure
|
|
Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20
Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
|
|
Stan R
Orange Level Access
Joined: 03 Dec 2009
Location: MA
Points: 985
|
Post Options
Thanks(0)
Quote Reply
Posted: 15 Sep 2017 at 4:27pm |
|
What does the wiring/ wiring diagram show? Then you will know.
|
|
SteveM C/IL
Orange Level Access
Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8521
|
Post Options
Thanks(0)
Quote Reply
Posted: 15 Sep 2017 at 6:39pm |
|
low press switch up front at dryer.no clutch till some pressure or jump switch to draw in Freon(make clutch run)
|
|
wekracer
Orange Level
Joined: 13 Oct 2009
Location: Tebbetts, MO
Points: 1587
|
Post Options
Thanks(0)
Quote Reply
Posted: 15 Sep 2017 at 7:24pm |
|
Did you pull a vacuum on it. The freon is under enough pressure in the tank to activate the low switch without having to jump the compressor. Just open the low valve and let it run for a minute or two.
|
|
Ron(AB)
Orange Level
Joined: 27 Dec 2009
Location: Alberta
Points: 959
|
Post Options
Thanks(0)
Quote Reply
Posted: 15 Sep 2017 at 7:35pm |
|
Right, I needed to jump the low pressure switch at the dryer. Thanks
Everything checks!
It's been a while since I did one.
|
|
