SWISCO - The Replacement Hardware Authority

"32 3 FT CMC 2" Channel Balance

A home owner from Northern California says:
I have a number of 1/2-inch channel balances that need to be replaced. The markings are "32 3 FT CMC 2". What do I need to order to replace it? I included photos of the OEM channel balance, although I have used a 3130 in the past that I was able to locate locally.

Thank you,
Mike
User submitted photos of a window balance.
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Tom from SWISCO responded:
Thanks for posting. Before I can confirm what Series channel balance you have, I'll have to figure out what your bottom shoe is. Please look at the measurements for our 15-001 and 15-002 bottom shoes and note their depths. As you can see, they are 1-1/8" deep and 1" deep, respectively. Which measurement more closely resembles your own shoe?

Please also tell me the length of the metal channel. Do not include the plastic attachments in this measurement.
A home owner from Northern California says:
Thanks for replying. The length of the metal channel is 33 inches without the plastic attachments.

The bottom shoe is 1-1/8" deep.
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Tom from SWISCO responded:
Thank you for posting. In that case, I recommend the S390-33 channel balance. Does that look about right? Based on your stamp, I'd also recommend the 3230 option. This can carry a window sash weight range of 18 through 23 pounds. Does your sash's weight fall within this range?

Please keep in mind that the weight range information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.
A home owner from Northern California says:
Thank you for your reply. The window weighs 21 lbs, which is within the 18-23lb range of the 3230 option. Since the 3240 starts at 23lbs, I suspect the 3230 is the correct option.

Thank you for your help,
Mike
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