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post #11 of 45 (permalink) Old 12-08-2018, 17:43
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Originally Posted by powerplus View Post
hi all after driving 650 miles through europe in 1 day a couple of days ago around 35c and even at 60 mph the air outside was worm

we need cab aircon as it just gets to hot for the wife

has anyone delt with alpinair.co.uk they gave a fair quote and are not far from home

cheers barry
Hi Barry, just a thought - is it possible that your wife's discomfort is down to the length of time of the journey, perhaps as much as the heat?

My husband had health issues and he couldn't have countenanced such a long drive - he'd have been bed-ridden for days.

Jean
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post #12 of 45 (permalink) Old 12-08-2018, 21:41 Thread Starter
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hi jean

yes you are right the length of journey did not help

but she just gets so hot and bothered when sitting in the van in a hot day even after a couple of hours if it is hot outside

our van does not have a roof overhang and the sun pitches in and allways seems to be coming through on her side of the van


barry
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post #13 of 45 (permalink) Old 12-08-2018, 22:09
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Those net-type things that stick on the window to protect children from the heat of the sun?

Jean
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post #14 of 45 (permalink) Old 06-01-2019, 10:57
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Old-ish thread, but wondered if habitation air con with the DC doo dah that allows running it when driving? That way you get to use it when on site too. Gotta be easier to install than cab air. Or are they not good on the move?
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post #15 of 45 (permalink) Old 06-01-2019, 11:24 Thread Starter
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hi

im thinking you are talking about running a mains aircon with a 12v to 220v inverter

it is possible but not practical as the inverter would kill you altenator and battery

i would have thought a mains aircon would want around 3kw and that would be over 100amps at 12v

hope i got your question right

barry
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post #16 of 45 (permalink) Old 06-01-2019, 16:24
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Originally Posted by wfdTamar View Post
Old-ish thread, but wondered if habitation air con with the DC doo dah that allows running it when driving? That way you get to use it when on site too. Gotta be easier to install than cab air. Or are they not good on the move?
If it was simple it l be offered as an option by the makers, it isnít, and there is a VERY good reason, Itís been explained by Barry

Can aircon is driven by a compressor thatís driven directly off the engine because of the amount of power it requires. Nice idea but it ainít gonna work, sorry!!

Andy

Its not the destination that matters.

It's who you share the journey with (even if itís in a caravan!) I am very fortunate to have Mrs Plodd to share mine with
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post #17 of 45 (permalink) Old 07-01-2019, 00:37
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3kw? (did you mean at 220-240 volts?) No way. My house air con runs using about 600 watts (outputs 3-4kw). Ok, startup and initial cooling watts might be more than that, but not running once temp has stabilised.

They are made - these are them (looks like just an inverter with some additional electronics). Correct though, you would want to have good alternator supply, or even possibly replace it with a more powerful one and monitor the state of charge of your batteries.

I'd be doing that before messing about installing a dash one.

https://cooltechleisure.co.uk/shop/d...-kit-dsp-t-12/

https://cooltechleisure.co.uk/shop/d...-kit-dsp-t-24/

Manual
https://cooltechleisure.co.uk/wp-con...ing-Manual.pdf
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post #18 of 45 (permalink) Old 07-01-2019, 00:42
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The other thing I wondered too is for a motorhome that doesn't have a habitation air con, what about those cheapo portable things? Noisy I've heard, but simple for the worst days.
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post #19 of 45 (permalink) Old 07-01-2019, 08:20
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post #20 of 45 (permalink) Old 07-01-2019, 08:30 Thread Starter
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hi

have you looked at the specification also you would need to check what aircon would be best for your van as the smaller units just would not give enough cooling on a hot day for an average van

the medium aircon units draw about 5A or 1100W at 220v that would be around 80A to 100A from your battery

i dont know what van you have and how many batteries you have but i do know your batteries would not survive long

with that sort of load on them

what van do you have and what size battery

barry


Product Specification
BRAND
Dometic

WEIGHT 13 kg
RECOMMENDED TOTAL BATTERY CAPACITY:
≥ 250 Ah

CONTINUOUS OUTPUT:
1800 watts

RECOMMENDED GENERATOR CAPACITY:
≥ 150 A

PRODUCT CODE:
9600007286

DIMENSIONS:
Inverter (W x H x D): 284 x 118 x 405 mm

POWER CONSUMPTION
30 Ė 113 A (12 volts DC)

VARIABLES
Power consumption, generator capacity and total battery capacity depend on the type of air conditioner and ambient temperatures

Last edited by powerplus; 07-01-2019 at 08:51.
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