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Re: Climate control
Posted by David Prantl (more from David Prantl) on Tue, 4 Sep 2001 19:47:12
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00 

>  Basically I would like to just have air blowing,  no heat, no AC. Do I 
>need to turn the setting  down below what the outside temp is to ensure  no 
>heat, as well as putting it in ECON mode to  make sure the AC does not come 
>on if I set it lower?

Exactly.  This is the only way to *ensure* that no heating or cooling will 
take place.  Eventually (in ECON mode of course), you'll hit the point where 
62F gives you heat, and only 'LO' gives you unmodified air.  This is a pain 
because whenever you set the temp to 'LO', the fan kicks in to FULL SPEED, 
so you need to adjust that manually as well.

So, you have a direct manual override for fan speed (you set the speed and 
is remains that way no matter what) and vent position, a somewhat less 
direct override for A/C (ECON keeps it off no matter what, and AUTO + 'LO' 
temp keeps it on/coldest no matter what), and a rather annoying indirect 
heater ('HI' temp is full heat, ECON + 'LO' temp is no heat).  There is *no* 
way to set a particular level of partial heat.

A couple of things make your '95 climate control (ACC2) much more 
user-friendly (believe it or not!) than '86-'89 (ACC) first generation 
systems.  You have an OFF button which the old ones don't, you have the 
ability to set fan speed to any level from a continuous range where the old 
ones would let you select '1', '2' or '3' only, and best of all, you have a 
user-configurable startup memory for all settings rather than just the 
default memory for your temp setting.

>  can I just pick one button to tell the system, just blow  air and nothing 
>else?

No, but the workaround is the ECON + 'LO' combination.  Again, you can 
configure it to behave this way every time you start the car.  See the 
owner's manual for instructions on how to personalize your startup settings.

FWIW, most '90, '91 and '92 non-turbo 9000 models in the USA had a heater 
knob, fan-speed knob, vent-selector knob, defrost button, A/C button and 
recirc button instead of the climate control computer.  This configuration 
was standard on most 9k models in other markets in earlier years as well.

David Prantl
david_prantlno39sdcx6spamx782hotmail.com
'84 900S, 5M, 210kMi, RIP as of 2/98
'89 900, 3A, 116kMi, restored and SOLD on 3/24/01
'86 9000T, 5M, 188kMi
'88 9000S, 5M, 142kMi
'90 9000S, 4A, 133kMi
'93 9000CSET, 5M, 72kMi
'68 97 Sonett V4, 4M, 76kMi, #000467
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