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Tom from SWISCO responded:
February 25, 2013
Thanks for posting! Before I recommend anything for you, can you first confirm what bottom shoe you have? Series 351 uses our 15-002, but it looks like you have our 15-001. Compare their dimensions to what you have and let me know. If you have a 15-001 after all, then you may be looking at our S390-15.
The stamp is indicative of your balance's strength. Yours corresponds to our 2440 option, but you may want to double check your sash weight to make sure it matches the rating shown for the 2440. |
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Tom from SWISCO responded:
February 26, 2013
Ah, I see. I should have noticed this before. Usually a balance with a stamp of 2440 is actually 25" long, not 15". If your balance channel is only 15" long, the stamp would be more like 1440. But the 1440 option can't support anywhere near 25.5 pounds.
You might want to double check just in case, since there isn't a 15" long channel that can support a 25.5 pound sash. It's a pretty heavy sash for such a short channel. |
