Slowing down a swg4 hd power venter ?

Slowing down a swg4 hd power venter ?

PostBy: Bity454 On: Fri Jan 04, 2013 11:54 am

Is there a different motor or fan impeller that can be installed to make them draw less air ? On the lowest setting of the rheostat, that will not cause the motor to stall or overheat causing loss of draft, the venter still draws way to much air. To achieve .03 to . 05 the damper is almost completely open. Are the motors in these units possibly not the type that are compatible to be slowed down by a rheostat ? I'm not an electrical engineer but have read that there are motors that are made to be run by a rheostats and motors that aren't . Any input or ideas would be greatly appreciated.
Bity454
 
Hot Air Coal Stoker Furnace: Alaska 140 dual paddle
Hot Air Coal Stoker Stove: Leisureline pioneer
Coal Size/Type: Rice
Other Heating: Good looking wife : )

Re: Slowing down a swg4 hd power venter ?

PostBy: CoaLen On: Fri Jan 04, 2013 2:03 pm

This may be of some interest to you...
Power Venter Motor Failure

You may also want to contact Matthus at Leisure Line for advice
http://www.leisurelinestoves.com/

-Len
CoaLen
 
Hot Air Coal Stoker Furnace: Keystoker Koker
Coal Size/Type: rice

Re: Slowing down a swg4 hd power venter ?

PostBy: Matthaus On: Fri Jan 04, 2013 8:04 pm

The rheostat has a tuning pot on the circuit board, unplug the unit, remove the electrical cover and locate a small white or blue plastic screw with an arrow on the side of the rheostat housing, CAUTION THE FOLLOWING STEP REQUIRES WORKING AROUND LIVE ELECTRICAL WIRES DO NOT ATTEMPT IF YOU ARE UNSURE OF PROPER SAFETY PROCEDURES!!! plug the unit back in and turn the screw clock wise slowly with the rheostat in the fully clockwise position. This should result in a reduced speed and proper damper opening (should be just flapping slightly at full burn and further open at idle, normally).

This should solve the issue, let us know how it turns out. :)
Matthaus
 
Stoker Coal Boiler: Leisure Line WL110 Dual Fuel, natural gas
Hot Air Coal Stoker Stove: Leisure Line Lil' Heater (rental house)
Coal Size/Type: Rice and Buckwheat Anthracite


Re: Slowing down a swg4 hd power venter ?

PostBy: Boots On: Fri Jan 04, 2013 10:54 pm

is there a damper built into your power venter? idk what model i have but i do not have a fan speed adjustment, that i know of, but i do have a damper that i just adjust to control my draft.
Boots
 
Stoker Coal Boiler: KA-6 In the basement........
Hand Fed Coal Boiler: Burnham SFB 101

Re: Slowing down a swg4 hd power venter ?

PostBy: Bity454 On: Sat Jan 05, 2013 10:47 am

No damper on mine just a rheostat.
Bity454
 
Hot Air Coal Stoker Furnace: Alaska 140 dual paddle
Hot Air Coal Stoker Stove: Leisureline pioneer
Coal Size/Type: Rice
Other Heating: Good looking wife : )

Re: Slowing down a swg4 hd power venter ?

PostBy: Bity454 On: Sat Jan 05, 2013 4:08 pm

Thanks Matthaus, tomorrow I will give it a try when I will be home all day to keep an eye on it.
Bity454
 
Hot Air Coal Stoker Furnace: Alaska 140 dual paddle
Hot Air Coal Stoker Stove: Leisureline pioneer
Coal Size/Type: Rice
Other Heating: Good looking wife : )

Re: Slowing down a swg4 hd power venter ?

PostBy: Bity454 On: Tue Jan 08, 2013 9:37 am

The adjustment worked, but still a very fine line of having the fan shut down if you go to far. Still think a fan blade that moves less air with the motor running at a little higher rpm would be safer. Maybe same fan with 1/2 or 1/3 less vanes on it ? Just a thought.... :hammer:

P.s. great response time ( LEISURE LINE ) rocks, will never buy anything but Leisure line again !!!!!!!!!!!
Bity454
 
Hot Air Coal Stoker Furnace: Alaska 140 dual paddle
Hot Air Coal Stoker Stove: Leisureline pioneer
Coal Size/Type: Rice
Other Heating: Good looking wife : )

Re: Slowing down a swg4 hd power venter ?

PostBy: Rick 386 On: Tue Jan 08, 2013 10:28 am

Bity454 wrote:The adjustment worked, but still a very fine line of having the fan shut down if you go to far. Still think a fan blade that moves less air with the motor running at a little higher rpm would be safer. Maybe same fan with 1/2 or 1/3 less vanes on it ? Just a thought.... :hammer:

P.s. great response time ( LEISURE LINE ) rocks, will never buy anything but Leisure line again !!!!!!!!!!!



So why not buy a replacement blade and shave a little off the end of it. Just make sure that you remove the same amount from each blade to maintain the balance. Or maybe reshape the blades to draw less ??

Try a little experimenting on the replacement blade. If it doesn't work, you can always go back to the original.




Rick
Rick 386
 
Stoker Coal Boiler: AA 260 heating both sides of twin farmhouse
Hot Air Coal Stoker Stove: LL Hyfire II w/ coaltrol in garage
Coal Size/Type: Pea in AA 260, Rice in LL Hyfire II
Other Heating: Gas fired infared at work

Re: Slowing down a swg4 hd power venter ?

PostBy: Bity454 On: Tue Jan 08, 2013 6:11 pm

Squirrel cage fan no way to mess with it !!!!
Bity454
 
Hot Air Coal Stoker Furnace: Alaska 140 dual paddle
Hot Air Coal Stoker Stove: Leisureline pioneer
Coal Size/Type: Rice
Other Heating: Good looking wife : )