idreadnought
Supportive Member
There are different reasons that tm manufactures use 47 blowers.
In the case of a cds machine it makes increasing airflow easier because you are limited to the ability to change pulleys and such. In a cds the blower turns about 2800 rpm (factory max is 3600 rpm) this creates much less airflow and also lowers max hgs.
In the case of a slide in the number one reason that manufactures use a 47 is for heat. they can spin the thing really slow which cause the highest temp rise and create more heat for the blower hx (yes this is correct, ask an engineer why) Also by running the blower slow you will in theory extend the life. however by running it slow you are increasing temps so in theory it could wear out faster.
The performer 405 in some peoples opinion the best machine ever made for carpet cleaning. Prochem uses a 47 blower to create the 405. they however turn the blower very slow to create heat and prochems suggested vac release is 12hg.
This is my take, if you are running a machine that is directly coupled to an air cooled motor then get a 45 and run the thing full blast. It will create almost 400 cfm without restriction. And more airflow will go through the wand lips when on the carpet because of the higher rated hgs (up to 16) This also is considering that your are not needing heat from the blower.
If you need more heat and have a machine that needs a blower heat exchanger then get a machine that belt drives a 47 that turns about 2800 rpm. You will sacrifice a little from the loss of hgs but it wont affect your performance much.
In my opinion you will have a hard time getting much improvement over either setup without using something bigger than 2 inch hose.
Finally, just buy the dam 2545 machine and let your cleaning professions get to work. Btw, if you call them chimps, and treat them like chimps then you will get the hassles and the quality of work that chimps provide! Of all my years on here I have and will never refer to an employee as a chimp. If you ever talked to me about how easy my life is as an owner you would see why.
In the case of a cds machine it makes increasing airflow easier because you are limited to the ability to change pulleys and such. In a cds the blower turns about 2800 rpm (factory max is 3600 rpm) this creates much less airflow and also lowers max hgs.
In the case of a slide in the number one reason that manufactures use a 47 is for heat. they can spin the thing really slow which cause the highest temp rise and create more heat for the blower hx (yes this is correct, ask an engineer why) Also by running the blower slow you will in theory extend the life. however by running it slow you are increasing temps so in theory it could wear out faster.
The performer 405 in some peoples opinion the best machine ever made for carpet cleaning. Prochem uses a 47 blower to create the 405. they however turn the blower very slow to create heat and prochems suggested vac release is 12hg.
This is my take, if you are running a machine that is directly coupled to an air cooled motor then get a 45 and run the thing full blast. It will create almost 400 cfm without restriction. And more airflow will go through the wand lips when on the carpet because of the higher rated hgs (up to 16) This also is considering that your are not needing heat from the blower.
If you need more heat and have a machine that needs a blower heat exchanger then get a machine that belt drives a 47 that turns about 2800 rpm. You will sacrifice a little from the loss of hgs but it wont affect your performance much.
In my opinion you will have a hard time getting much improvement over either setup without using something bigger than 2 inch hose.
Finally, just buy the dam 2545 machine and let your cleaning professions get to work. Btw, if you call them chimps, and treat them like chimps then you will get the hassles and the quality of work that chimps provide! Of all my years on here I have and will never refer to an employee as a chimp. If you ever talked to me about how easy my life is as an owner you would see why.