Fan wiring question

[avaserfi]

I just recently bought a couple fans to cool my receiver as its in a tighter place than it should be and I would rather spend $30 now and save some money later.

Here is the link for the fans: http://shop.willyselectronics.com/browse.cfm/4,7105.htm

I had a quick question on the best way to wire them. I was hoping to set them up so they only ran when my receiver was on and turned on when I turned it on. As I see it I have two options either plug it into my Belkin pf60 and set the port to switched or plug it into the receivers second a/c outlet.

The other question I had was would it be better to wire the fans parallel or in series.

Ohh yeah and say I wanted to be lazy about this any suggestions on quick ways to get it done (i.e. without soldering)?

 

[LucasG]

Does your reciever have a 120V outlet on the back? Alot of them have a switched outlet that will only provide power when the reciver is on. Other than that maybe some sort of DC trigger, but thats going to get complicated with AC fans. On the wiring I dont see why both wont work. The wattage is very low so I dont think its an issue. I believe if you have them in series the fans will output less than if they were in parallell, but then again Im an ME not a EE so you might want to check on that. And for the faster way, I would solder. When dealing with AC I prefer safety over speed. Good luck

Lucas

 

[avaserfi]

"SWITCHED (total capacity – 120 W (1 A.))
The power to the outlet is turned on and off in
conjunction with the POWER switch on the
main unit, and when the power is switched
between on and standby from the remote
control unit.
No power is supplied from this outlet when
this unit’s power is at standby. Never connect
equipment whose total power consumption
exceeds 120 W (1 A.)."

Quoted from the denon manual.

So I think it would actually supply power to the fans, correct me if I am wrong. If not thats not a big deal I can use the Belkin.

My primary concern was mainly the parallel/series wiring and if there was a harness or something out there I could just hook it on to. I don't have a soldering iron anymore and do not think I would use it much if I bought one.

 

[LucasG]

Another way to run them is to get a 115V plug (cut from extension cord or bought) and tie them together with crimp connectors. Not my favorite way of doing it but if they are crimped correctly and you heatshrink over the joint you should be okay. Also, just a thought, but you may want to put a fuse inline somewere in case of a power spike.

Lucas

 

[avaserfi]

One last question, I think. I went to radio shack today and bought the 115v plug as well as some shrink wrap and got my hands on a soldering iron. Since I have decided to wire the fans parallel and want to hook an inline fuse protector I was wondering what type of fuse I should get.

I am pretty sure it should be fast acting fuse for the type of set up I am doing but have no clue as to the amperage I should be aiming for. By my math (I know very little in regard to circuitry) I need a 120V .5 amp fast acting fuse. From what I can find though, locally atleast, they do not exsist. Anyone know what I should get for that inline fuse.

The fans eat 4 watts and used 80-130 volts. For all the EE's out there. Anything else I would be able to find is on the link in the opening post.

 

[MDS]

I think you are overthinking the problem...

Either the receiver's switched outlet or the power conditioner's switched outlet will work as the power draw of the two fans is very small.

Personally I would connect them to the power conditioner. Then you are protected against surges destroying the fans. If the receiver is connected to the power conditioner and the fans to its switched outlet you are still protected against surges via the power conditioner and you can drop the inline fuse idea.

 

[avaserfi]

In all honesty I wasnt worried about a surge destroying the fans, I was more worried about the off chance the fans shorted. Thats the main reason I was planning on putting a fuse in. Am I just being to paranoid?