GE Central System
Wow! Thanks for all the info and the questions. Here are some answers and a picture of the filtering system.
As with all Beams, this is called "filtered cyclonic" or "inverted bag filtration." Once the motor starts, the filter bag rises up into a cone and filters the incoming air/dirt. When the motor stops, the bag, which is weighted, falls back down into the lower canister shedding the majority of it's dirt. No bag, empty like a shop vacuum. This type of filtration is used by many still today. Today, though, instead of a flannelette type material, Beam used a Gortex material that works even better.
I'm never going to use the power unit. It will reside in glory next to my Pullman Holt system of the same vintage. The Pullman has the same motor but is bigger and more industrial looking. I too, got it complete, never used with full attachments on Ebay 3 years ago. I have another 15 or so units from Filtex to VacuMaid to Electrolux, Central Vac International and a couple of private label VacuMaids.
To answer the question about plumbing a system, yes the principle is similar to plumbing. But the pipe and fittings are made especially for vacuum systems. uber smooth interiors and lots of fittings of 30-45-90 degrees so that airflow is not impeeded as it makes turns. The lastest change is that previously you just made sure everything was horizontal in a run. But often dirt being pulled through the system when it came to a vertical run would run down often into an inlet. Now systems are plumbed with each vertical run doing a 90 degree turn before going vertical. I've installed roughly 100 systems in 15 years. I've been to the VDTA convention in Las Vegas several times and going through the central system install seminar three times.
The one thing that puts this GE above a Beam of the same age is the attention to detail. The GE has the covered wiring, the top lid has a gasket around the opening for the motor stop and even the top piece of the motor is painted to match the body. Beams of this age had a little lid on top of the motor. But this was also the golden age of GE and attention was paid to quality.
Good to know that the Preco power brush was used with these. I love them and have about 6 of them under various labels from Preco to Westinghouse to Singer and unlabelled. They work well. Preco nozzles originally had a metal neck and later changed to plastic which then became it's weak spot as it would split. But they are workhorses!
O.K. Here's the Picture of the filterbag.
Greg
