Vent without fan - Toyota Yaris Forums

spdas · 07-05-2011, 02:37 PM

Is there any way to have the vent work without turning on the fan on a 2007 3dr Hatch?

Francis

rningonfumes · 07-05-2011, 02:46 PM

Yes, make sure the knob for outside vs recirulated air is turned to outside air. As long as you're moving, air will blow in from the vent at the bottom of the windshied (outside).

spdas · 07-05-2011, 02:53 PM

I was hoping to have air come out from all vents, not just the vent by the windshield. May seem like an odd request, but my Yaris is a Electric, (ie no gas) and the fan seems to take a lot of amps to run, so just trying to go without the fan. It is not a deal-breaker though, but here in Hawaii without a gas engine creating heat into the cabin, it runs just about the right temp with vents open and fan on med, but it makes a lot of noise in a very silent car.

Francis

rningonfumes · 07-05-2011, 02:57 PM

I mis-intrepreted your question, and vice verse.

What I meant is that you can have air blow into the cab via setting the recirculate to outside air. This means that air will blow in from the outside vent at the base of the windshield.

To your question about having air go through all the vents, keep the other knob at the head and feet setting and it will blow to all areas. Concerning the direction of air, you might wish to keep it to the head so you can feel it more.

Edit: Electric huh?? PICS!!! LOL

CTScott · 07-05-2011, 03:12 PM

With an electric conversion Yaris, I think I would look into more efficient fan motors. The OEM one draws about 2 Amps and with the resistors for speed control (rather than multiple windings or a solid state speed controller) the fan draws the same amount on any setting.

spdas · 07-05-2011, 03:19 PM

With knob on vents and fan on i get fresh air. With fan off the vents are totally dead. Thinking it needs the fan to actually open the vent door. But what you say seems to not need the fan. In my other cars vents worked, but of course the fan increased air flow. Here are a cupla pix.

Francis

CTScott · 07-05-2011, 03:29 PM

There is no vent door to open (other than the manual flick of the switch from recirc to outside). The location of the intake is why you don't get any flow through the vents. This is the intake scoop for the fan. It is located under the top of the dash on the passenger side, and connects to the wiper cowling under the hood. If you can give it a more direct input, you will see more flow from the vents with the fan off.

Name: Vent intake.jpg
Views: 178
Size: 98.3 KB

Name: Vent intake.jpg
Views: 178
Size: 98.3 KB

mazilla · 07-05-2011, 04:07 PM

Electric Yaris conversion? That's pretty kewl.

spdas · 07-05-2011, 04:16 PM

Yes I see how the fresh air is setup now. hmmm maybe the fan is actually blocking the air flow.

Francis

CTScott · 07-05-2011, 09:12 PM

Quote:

Originally Posted by spdas

Yes I see how the fresh air is setup now. hmmm maybe the fan is actually blocking the air flow.

Francis

The fan doesn't really block it, but the design of the fan housing definitely adds to the tortuous path of the air from intake to vents.

Revsson · 07-05-2011, 10:45 PM

Quote:

Originally Posted by CTScott

There is no vent door to open (other than the manual flick of the switch from recirc to outside). The location of the intake is why you don't get any flow through the vents. This is the intake scoop for the fan. It is located under the top of the dash on the passenger side, and connects to the wiper cowling under the hood. If you can give it a more direct input, you will see more flow from the vents with the fan off.

Looks like CTScott's investment in Crashy is paying off for other members as well.

07-05-2011, 02:37 PM	#1
spdas Drives: Yaris Electric Join Date: Feb 2011 Location: Hawaii Posts: 12	Vent without fan Is there any way to have the vent work without turning on the fan on a 2007 3dr Hatch? Francis

07-05-2011, 02:46 PM	#2
rningonfumes Drives: Yaris Sedan 5MT Join Date: Oct 2008 Location: SoCal Posts: 865	Yes, make sure the knob for outside vs recirulated air is turned to outside air. As long as you're moving, air will blow in from the vent at the bottom of the windshied (outside). __________________

07-05-2011, 02:57 PM	#4
rningonfumes Drives: Yaris Sedan 5MT Join Date: Oct 2008 Location: SoCal Posts: 865	I mis-intrepreted your question, and vice verse. What I meant is that you can have air blow into the cab via setting the recirculate to outside air. This means that air will blow in from the outside vent at the base of the windshield. To your question about having air go through all the vents, keep the other knob at the head and feet setting and it will blow to all areas. Concerning the direction of air, you might wish to keep it to the head so you can feel it more. Edit: Electric huh?? PICS!!! LOL __________________

07-05-2011, 03:12 PM	#5
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	With an electric conversion Yaris, I think I would look into more efficient fan motors. The OEM one draws about 2 Amps and with the resistors for speed control (rather than multiple windings or a solid state speed controller) the fan draws the same amount on any setting. __________________

07-05-2011, 03:19 PM	#6
spdas Drives: Yaris Electric Join Date: Feb 2011 Location: Hawaii Posts: 12	With knob on vents and fan on i get fresh air. With fan off the vents are totally dead. Thinking it needs the fan to actually open the vent door. But what you say seems to not need the fan. In my other cars vents worked, but of course the fan increased air flow. Here are a cupla pix. Francis Attached Images

07-05-2011, 02:53 PM	#3
spdas Drives: Yaris Electric Join Date: Feb 2011 Location: Hawaii Posts: 12	I was hoping to have air come out from all vents, not just the vent by the windshield. May seem like an odd request, but my Yaris is a Electric, (ie no gas) and the fan seems to take a lot of amps to run, so just trying to go without the fan. It is not a deal-breaker though, but here in Hawaii without a gas engine creating heat into the cabin, it runs just about the right temp with vents open and fan on med, but it makes a lot of noise in a very silent car. Francis

07-05-2011, 03:29 PM	#7
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	There is no vent door to open (other than the manual flick of the switch from recirc to outside). The location of the intake is why you don't get any flow through the vents. This is the intake scoop for the fan. It is located under the top of the dash on the passenger side, and connects to the wiper cowling under the hood. If you can give it a more direct input, you will see more flow from the vents with the fan off. __________________

07-05-2011, 04:07 PM	#8
mazilla advocatus diaboli Drives: 07 Yaris hatch Join Date: Mar 2011 Location: San Jacinto California Posts: 1,126	Electric Yaris conversion? That's pretty kewl. __________________ -Type 07 FFL- My odometer 03/11 http://i205.photobucket.com/albums/b...a/2843ed85.jpg

07-05-2011, 04:16 PM	#9
spdas Drives: Yaris Electric Join Date: Feb 2011 Location: Hawaii Posts: 12	Yes I see how the fresh air is setup now. hmmm maybe the fan is actually blocking the air flow. Francis

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