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ConceptSystem 77 Functional Window

Technical information

Performance

Energy

Thermal insulation - Uw Double
0.24 Btu/hr.ft².°F
Thermal insulation - Uw Triple
0.18 Btu/hr.ft².°F

Comfort

Air tightness
0.04 cfm/ft³
Water tightness
12 psf
AMAA rating
Class AW
PG rating
120
Acoustics STC
43 dB
Acoustics OITC
34 dB

Safety

Opening & closing resistance
Class 3
* Note: Performances and properties may be different depending on the profile combinations

Properties

Max. dimensions & weight

Min. height of element
26 5/16 inch
Max. height of element
112 15/16 inch
Min. width of element
20 3/8 inch
Max. width of element
49 15/16 inch
Min. height of vent
23 5/8 inch
Max. height of vent
110 1/4 inch
Min. width of vent
17 11/16 inch
Max. width of vent
47 1/4 inch
Max. weight of vent
374 lbs

Sightlines

Min. frame width (inward opening)
2 inch
Min. vent width (inward opening)
1 5/16 inch
Min. frame-vent width (inward opening)
3 1/2 inch
Min. vent-vent width (inward opening)
5 11/16 inch
Min. frame width (outward opening)
11/16 inch
Min. vent width (outward opening)
3 inch
Min. frame-vent width (outward opening)
3 11/16 inch
Min. vent-vent width (outward opening)
7 3/16 inch
Min. width T-profile
3 inch
Depth frame
2 11/16 inch
Depth Vent
3 1/16 inch
Depth frame-vent
3 1/16 inch

Glazing

Rebate height
1 inch
Glazing method
Dry glazing Siliconized glazing Internal glazing Glazing bead
Min. glass thickness - frame/element
3/16 inch
Max. glass thickness - frame/element
2 1/16 inch
Min. glass thickness - vent
3/16 inch
Max. glass thickness - vent
2 1/2 inch