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Coleman Echelon 9S series manual/ fan speed control
Icarus
Member Posts: 143
in Gas Heating
Friend has a Coleman Echelon 9S series single stage, single speed forced air furnace. It currently blows too hard with not a large enough Delta. I am looking to decrease the fan speed, but can’t seem to find a manual on line. Any help would be appreciated either to find a manual, or a link to the technique to use. As with most FA furnaces it usually is a simple matter to properly position the dip switches. Thanks in advance for any help.
Icarus
Icarus
0
Comments
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isn't the line diagram under the cover?known to beat dead horses0
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It may be...I am trying to “diagnose” from afar. I may have to take a special trip out there. The owner is not capable of removing the cover, nor reading the diagram to me.
Icarus0 -
Blows too hard with not enough delta? What exactly are you trouble shooting?0
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Trying to see if we can better manage the fan speed. The net in the house is plenty of BTUs, but we (the client) would rather have less air at a higher temp to quiet noise as well as reduce cooler draft. Every install manual I’ve ever used shows a return air temp and a supply temp for a proper rise. I’m guessing that the fan speed is too high given the size of the house.
Icarus0 -
Found a copy of the book...the owner had it. Turns out it seems to be the only forced air furnace/handler that is not easily configured for a different fan speed. The Control board has a tap for a low speed cool, but there is no lug on board, AND there is no low speed tap for heat, so altering it is a no go. The Delta T was barely acceptable, ~38f. Suggested range is 35-65f.
Thanks for the help.
icarus0 -
This is how they the efficiency numbers to the high 90's.
Put a merv 13 1" filter in and see what happens! Just kidding don't do it
D0
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