Hello, so I have a Caldwell 32 4 LN channel balance with a 33" length and sash weight of 28lbs. In measuring the Channel top and shoe, the dimensions seem matched with the S380-33 (although the shoe measurement is slightly larger than 1" but definitely not 1 3/32" to move to a S385-33). My question is twofold:
1) the top range of the 3240 option is 28lbs whereas the 3250 option has 28lbs at the bottom of its range. Which should I choose for a 28lb sash?
2) if the shoe measurement is slightly larger than 1" but smaller than 1 3/32" should I still go with the S380 channel balance versus moving up to the S385.
Thanks
3240 or 3250 option.
Quick Learner from WA
Jun 16, 2017 10:48 pm
4 Replies
Tom from SWISCO
Jun 20, 2017 11:53 am
If your sash weight is exactly 28 pounds, I suppose you could use either option, but you may want to see if it leans one way or the other. Typically, we like to stick with what was used originally, especially if you found it worked fine while you had it. In your case, it would be the 3240 option.
If your shoe is more than 1", but less than 1-3/32", I would go with the Series 385 instead. It's likely it was once 1-3/32", but wore down a little over time.
If your shoe is more than 1", but less than 1-3/32", I would go with the Series 385 instead. It's likely it was once 1-3/32", but wore down a little over time.
Quick Learner from WA
Jun 20, 2017 4:08 pm
Ok, I think it was probably 1-3/32" and was worn down otherwise, I would guess it would be less than 1" from wear.
As to the weight, the sash came in a t 27.6 lbs so it is borderline but i will take your advice and go with the 3240 option. The one think I notice, however, is that some of our windows can be a real struggle to pull down. Would that be helped with the 3250 or make it worse?
As to the weight, the sash came in a t 27.6 lbs so it is borderline but i will take your advice and go with the 3240 option. The one think I notice, however, is that some of our windows can be a real struggle to pull down. Would that be helped with the 3250 or make it worse?
Tom from SWISCO
Jun 21, 2017 9:37 am
Ah, if the sash is 27.6 pounds then I would definitely go with the 3240. You mention that some windows are harder to pull down; this happens when a balance is too strong. A 3250 option would actually make it worse. You may want to weigh those sashes to be sure that 3240 is the right option. You don't want to just go to 3230 without checking, since you don't want to risk getting balances that are too weak. These things are like Goldilocks' porridge: they need to be just right.
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