[Robin Ray]

Ametek have upped the power output on the new 6.6's. They now do 144.9 inches lift and 659 peak air watts, but still only draw just over 7 amps, so by far the most efficient motors out there.

If you replaced the 1200 watt motor in a Pro machine with a 1400 watt (so 2 x 1400 watt motors) you would be drawing over 16amps through a 13amp power socket which is illegal, voids the machine warranty and voids you public liability insurance if the machine caused a fire, which it could well do - you can put big thick cables on the machine all you like but you never know what the wiring's like in the property you are working in. It only takes one bad connection.

Not good for the machine either, as you'll be pulling higher amps and everything will be running hot.

Definitely not something we'd recommend!

The Booster POD does use the 6.6 two stage.

Matt

That's definitely interesting!

Perhaps you could pop a link to Ameteks new product bulletin about that motor for us.

[Matt @ Cleansmart]

Will do

[Robin Ray]

Will do

Excellent, thanks.

[john martin]

True and the correct answer for anyone unsure .
In practice though it's not 16amp continuous . With the pump turned down and hoses wand connected it drops about 1 . Then when wand is on carpet it drops to about 10 and fluctuates continuous in use .so any heating is unlikely if your carefully , the house wiring  system is really 16amp plus rated in reality protection by RCD etc .
Look out for any resistance heating in the plug occasionally and change according ever couple of months to be sure .
I run four 6.6 series /parallel daily . It's transforms my results and as long as I manage risks it's worth it for me .

[john martin]

Will do

Excellent, thanks.

looks like Matt is telling the truth Robin  ...  i found 120v version showing those specs , i cant find the 230v , i wonder does it still go by the same product number .
download pdf here ..
https://www.centralvacuummotor.com/Product%20Bulletin/12248300.pdf

[Robin Ray]

Great, its always good to be able to pack more power in. It will be interesting to see how much, if any more power the 230v one has than the 120v.

[john martin]

id say there is little if anything between the two 120/230v  ...  current draw being the only real difference , i was comparing the old and new 120v data sheets , it seems to draw the exact same current as the old one , so to create more efficiency with no downside is an achievement  , at the same time its only half a HG more ... but usefull none the less

[john martin]

cleansmart Matt  ,    it could be good option for those selecting an airflex mini to have one single 6.6 inside ... and an exhaust port to connect the booster 6.6 to   ....   making the most powerfull airflex mini option

also  ...     if someone selected an airflex pro again with a single 6.6  ...  and an exhaust port  , with the booster they could then swap between plugging into the parallel machine port ( storm performance ) or choosing 6.6 series performance by attaching to the exhaust .

base machine would be a  bit lighter also .

[Matt @ Cleansmart]

Cheers John,

Don't think the Mini waste tank would be up to that (with a built-in 6.6 plus 6.6 Booster POD), but could have a look at the Pro with single 6.6 option. When working without the Booster POD, a single 6.6 would work ok, but with a bit less airflow than we'd normally recommend - we'd normally recommend 2 x 3-stage as a minimum which gives you about 30% more airflow than a single 6.6 (although in terms of total air watts the single 6.6 isn't far behind). We haven't production tested the Storm with in-series vac set-up (as we found it works better in parallel), so we'd have to run on test which would take about 6 months (assuming there weren't any problems).

We've tested lots of different combos of pump and vacs, and with the vacs currently available to us we've found 2 x 3-stage vacs to be the best use of a single power cord, and 2 x 6.6 vacs the best option with two power cords, although we're always happy to look at any suggestions or different user preferences.

Matt

[john martin]

Might be worth a test boosting the mini , I think the tank would be ok ... although u have be more sure than me .
I got the alltec version , went with that simply because I was used to dealing with Willie over here .
So hd electro and sd electro with 2 " barb was the spec .about 17 HG ....I shelved the sd electro and fitted another hd ...( I know shouldn't ) so about 18hg ...tank was ok ...
As the second electro I fitted was a bit older ...when that went I shoehorned a 6.6 in as the lower hanging motor. The bit more airflow is nice .
What isn't ok is the stock ball and cage from Sandia I suppose .  It will set off when the airflow is increases , ball too light , cage too small or whatever .
I just took the ball out , that would have to sorted of course if someone was selling them though .

[Robin Ray]

Will do

Is there any news on the Ametek product bulletin for the new 230v  6.6 motors  Matt? It would be interesting to see how much extra performance they have managed to draw out of them and how much more power it take to do that.

[Robin Ray]

I am beginning to wonder if these claims about the new uprated 6.6 motor are actually real! Surly backing the claims up with some evidence is a major selling point for cleansmart.

[Matt @ Cleansmart]

Sorry, we are very busy at the moment:

I now have the UK updated datasheet for the latest UK 6.6 motor version. The figures are actually slightly different: Airflow is higher 143.9 CFM (compared to 135.8 CFM on the US motor). Water lift is slightly lower 141.7 (compared to 144.9 on the US motor). So overall, that makes the UK motors about 6% more powerful per motor than the US equivalent motors (700 peak air watts on the UK motors, 659 peak air watts on the US motors).

For the record, we don't normally quote these sorts of figures in our advertising (for the reasons John stated earlier in this thread) and rarely get asked about this sort of stuff!

I have attached some bedtime reading for you Robin   

Matt

[john martin]

Those are nice specs , here the old one just to compare .   To me it looks like they strenghthened the electric motor a tad , like upped the wattage by 100w or so which would increase the lift . So no a new model number ... just after a certaain date ... they upped the power a bit .
Might be a little more current draw but that dont matter on a two cord machine .
certainly would be no reason to choose an 8.4 now ... even the old 6.6 was measuring the same as it on my own little hg/cfm test

old one ...
http://www.centralvacuummotor.com/Product%20Bulletin/122236-18.pdf

Matt ... incase your not aware ( but probably u  are )  mytee are switching all there machines to a hybrid ( they call it ) single stage 6.6 at 710 airwatts each ....  but they have to run in series  , but by all user accounts they are performing really well 

[Robin Ray]

Thank you for posting that. That is quite a rise in power, by the looks of it pretty much exactly the same power as an 8.4 but with a tad bit mor amp draw. Looks like the 6.6 is king of the hill yet again.

Apologies i doubted you.

[Matt @ Cleansmart]

Thanks guys,

The 8.4's are good motors but 2 x 8.4 motors weigh 3kg more than 2 x 6.6 motors, so quite a lot of extra weight on the machine. We couldn't tell any difference performance-wise at the wand between the 6.6's and the 8.4 motors. The 8.4's are a lot more expensive to replace also. This is why we prefer the 6.6 motors.

The single stage 6.6's we stock only do 588 air watts, would you have the datasheet for the 710 air watt ones - might be interesting.

Thanks

[john martin]

Thanks guys,

The 8.4's are good motors but 2 x 8.4 motors weigh 3kg more than 2 x 6.6 motors, so quite a lot of extra weight on the machine. We couldn't tell any difference performance-wise at the wand between the 6.6's and the 8.4 motors. The 8.4's are a lot more expensive to replace also. This is why we prefer the 6.6 motors.

The single stage 6.6's we stock only do 588 air watts, would you have the datasheet for the 710 air watt ones - might be interesting.

Thanks

Hi , i  cant see a data sheet  , mainly because Mytee are claiming their version is proprietary , that may be sales talk too though .
I can see a single stage where similar airwatts aare mentioned , so it  could be related to this vac  ...  (120v version )
https://catalog.ametekdfs.com/ecatalog/lamb-brushed-blower-motors/en/122628-00     

I would say its a full amp version of the single stage u mentioned , but where as that one is about 6amps ?  the newer one probably has the same 7.5amp motor as the two stage .

There is scraps of info here also on larry cobbs site  ..
https://www.cobbcarpet.com/zen/index.php?main_page=product_info&cPath=86&products_id=5569

i think they end up about 220cfm and 200" in series  , mytee claim 20%-30% more efficiency when testing is done with wand on carpet ... over a twin 6.6 or 8.4 parallel setup

they have even converted their quad 5.7 escape to two motor lx and people are still impressed with the performance
https://www.youtube.com/watch?v=DoXqW26kcGQ

[Matt @ Cleansmart]

There are lots of claims in carpet cleaning I'm not saying Larry Cobb is here, but manufacturer's can claim whatever airflow figures they like because your average carpet cleaner won't have any way to check. Be interesting to see the datasheet though, maybe Robin could ask him for it!

We just keep it simple by claiming the Storm will run 200ft of hoses direct from the van, clean quicker than a standard 2 x 3-stage motor machine and with faster drying times etc., which we feel is more useful than quoting CFM figures that a lot of carpet cleaners are dubious of anyway.

I'll ask Ametek about these motors though, as we'd written off the single stage 6.6's based on testing the ones we have here from a few years back.

Cheers John

[Robin Ray]

There are lots of claims in carpet cleaning I'm not saying Larry Cobb is here, but manufacturer's can claim whatever airflow figures they like because your average carpet cleaner won't have any way to check. Be interesting to see the datasheet though, maybe Robin could ask him for it!

We just keep it simple by claiming the Storm will run 200ft of hoses direct from the van, clean quicker than a standard 2 x 3-stage motor machine and with faster drying times etc., which we feel is more useful than quoting CFM figures that a lot of carpet cleaners are dubious of anyway.

I'll ask Ametek about these motors though, as we'd written off the single stage 6.6's based on testing the ones we have here from a few years back.

Cheers John

I only asked because of the reputation of many manufacturers when it comes to performance claims.

Genuine claims of performance can always be substantiated by evidence.

The Mytee machines and motors in question are actually for sale in this country by World wide cleaning support. Idid actually enquired about those motors when buying my last machine but the closest I could get was the information that is stated on the mytee website. Those motors however are not for sale to any other company except mytee, as they have been developed for mytee.  Fitting two motors to the escape at least solves the problem of world wide cleaning support fitting a 13 amp plug on a cord that draws 20 amps, which was the case with the four motor escape.