I bought a pair of Sirrocco 12v fans for our van and was fitting them yesterday , I piggybacked them off the 12v lighting in the bedroom that way I could conceal any wiring .
I spoke to the manufacturers sparky and he said if he were retro fitting the fans then he'd do the same .
The wiring on the back of the fans as supplied , its the same gauge as speaker wire . I've had some speaker wire in my kit so I ran that thru the ceiling and into the cupboard
on each side , roughly two metres each fan. I haven't connected it up yet as i'm thinking maybe the voltage drop could be too much . Any ideas .
Checked their specs and found this.
Auto shut-off at 10.5 Volts
Draws less than 0.4 amps at high speed
TheHeaths said
11:25 AM May 14, 2017
Mezza,
it should work fine.
I piggybacked one off of the lights and it is working well.
As far as wire gauge I am uncertain as I used the wire supplied with the fan.
theberrys said
03:24 PM May 14, 2017
I did the same as The Heaths without an issue. Regards Tony
Hetho said
07:12 PM May 14, 2017
Hi Mezza.
It will be fine, given that the amps are as you say 0.4 on high.
I would use 3mm TS Auto Cable and not speaker wire ( about $1.00/Mtr) and I would check if anything else is wired into that circuit that you may not know about.
The easiest way to check is pull the fuse for that circuit and see what does not operate. (for just in case)
Regards.
Hetho.
AJC said
07:12 PM May 14, 2017
Hi Mezza,
Those fans are great and their current draw is amazingly small - you could put just about any cable on them and they'd still work just fine. (e.g. 3mm auto cable is about the smallest we get, and over 5 metres there's be less than 0.1 Volt drop!)
Cheers
AJC
Desert Dweller said
05:34 AM May 15, 2017
We had a small 12v fan fitted to the rear of our fridge to get rid of excessive heat. During one hot spell it ran for two days continuously & flattened our 110ahr battery.
AJC said
01:33 PM May 15, 2017
Yep, the older fans draw about 2 Amps, so over 48hrs that's 96Ah - makes sense!
Dougwe said
02:45 PM May 15, 2017
I did my Caframo fan a little different after having it cutting out a lot when I plugged into a cig socket and join in cable. I decided to run 12guage cable 4mts direct from battery into the back of fan direct, at end of single bed on door side of van with a in-line fuse next to battery, Works a treat with no cut outs. I have it on all night and notice no difference in battery in the morning. The only thing is, I get a slight vibration noise due to being fixed to a hollow partition. Working on that one.
Kiwi-as said
10:16 PM May 16, 2017
So Doug you go to bed with a vibrator.
Dougwe said
09:40 AM May 17, 2017
You are naughty MrK.
Maybe that's why I wake up in morning thinking I must need to go to toilet but when I do nothing happens :)
meetoo said
11:56 PM May 17, 2017
mezza56 I connected the Sirroco wiring to the 12 volt supply wire of the vans radio. Did not have to add any extra length of wire. Works a treat.
Hi all ,
I bought a pair of Sirrocco 12v fans for our van and was fitting them yesterday , I piggybacked them off the 12v lighting in the bedroom that way I could conceal any wiring .
I spoke to the manufacturers sparky and he said if he were retro fitting the fans then he'd do the same .
The wiring on the back of the fans as supplied , its the same gauge as speaker wire . I've had some speaker wire in my kit so I ran that thru the ceiling and into the cupboard
on each side , roughly two metres each fan. I haven't connected it up yet as i'm thinking maybe the voltage drop could be too much . Any ideas .
Checked their specs and found this.
it should work fine.
I piggybacked one off of the lights and it is working well.
As far as wire gauge I am uncertain as I used the wire supplied with the fan.
Hi Mezza.
It will be fine, given that the amps are as you say 0.4 on high.
I would use 3mm TS Auto Cable and not speaker wire ( about $1.00/Mtr) and I would check if anything else is wired into that circuit that you may not know about.
The easiest way to check is pull the fuse for that circuit and see what does not operate. (for just in case)
Regards.
Hetho.
Hi Mezza,
Those fans are great and their current draw is amazingly small - you could put just about any cable on them and they'd still work just fine. (e.g. 3mm auto cable is about the smallest we get, and over 5 metres there's be less than 0.1 Volt drop!)
Cheers
AJC
Yep, the older fans draw about 2 Amps, so over 48hrs that's 96Ah - makes sense!
So Doug you go to bed with a vibrator.
Maybe that's why I wake up in morning thinking I must need to go to toilet but when I do nothing happens :)
mezza56 I connected the Sirroco wiring to the 12 volt supply wire of the vans radio. Did not have to add any extra length of wire. Works a treat.
Cheers, John.