Simonton Tilt Single Hung

A contractor from Orange County CA says:
November 15, 2023
I have a tilt single-hung window with V-grooved IG units. The Sash weighs 29 1/2 pounds. It has an unusual triple-balance assembly with three individual coil supports connecting to the the T-bar tilt shoe. Only the bottom coil spring has a number 9 on it and the sash weighs 29 1/2 pounds. If I order your triple balance support the mounting holes will not line up. Can I place your balance springs in the old support with a new shoe? Let me know, thanks!
A contractor from Orange County CA says:
November 15, 2023
Please notice the bumper cushion on the bottom support. All three supports are separate but are assembled together in the frame. The coil springs are 1/2" wide. The shoe is 1 1/4" wide by 1 7/16 high by 1/2" thick. These spring systems designs are destined to fail with so much spring pressure.
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Lauren from SWISCO responded:
November 16, 2023

Hello, thank you for posting,

Please review the 15-199 pivot shoe that is compatible with the 1/2" Series 160 coil springs. 

You could reuse your original supports, but the new triple support 15-150T only uses one installation hole. 

If you want to stick to your three coil set up, you could use (2) S160-5 coils and (1) S160-3 coil on each side of the window.

If you want to switch to two coils, you could use (2) S160-7 coil springs on both sides of the window using the 15-150D double support. 

As long as you are within a pound of the total weight, the sash should be supported.

Let me know what you think! 
Bumper
Bumper
15-148
$0.58
Pivot Shoe, 17/32" Thick
Pivot Shoe, 17/32" Thick
15-199
$3.70
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