System Description: The Smoke Guard Model 400 and Model 400B (M400 and M400B) Systems create a code-compliant smoke and draft control assembly when paired with common fire-rated elevator doors. The Smoke Guard System screen consists of a reinforced, transparent, polyamide or polyimide film. The film edge is connected to flexible magnetic strips which adhere to ferrous metal rails as the system deploys creating a tight seal.
The Smoke Guard M400 and M400B Systems include a control system consisting of a printed circuit board containing the control, alarm and diagnostic logic. The M400 System uses standard building power. The M400B System uses standard building power and an integral battery backup system to maintain operation during building power failure.
The Smoke Guard M400 and M400B System application designs are for a maximum hoistway opening of 70-1/2 inches wide, and a maximum ceiling height of 144 inches. Additional installation components are required for openings greater than 55-1/4 inches wide.
System Operation: The Smoke Guard system is designed specifically to protect elevator openings and the shaft from vertical smoke migration. The system will deploy only when the smoke detector in front of that particular elevator opening goes into alarm.
FLAME SPREAD RATINGS
| Test Standard |
Flame Spread |
Smoke Development |
| ASTM E84 |
≤ 25 |
≤ 450 |
| CAN/ULC S102 |
30 |
30 |
AIR LEAKAGE RATINGS
| Test Standard |
Test Type |
Ratinga |
| UL 1784 |
Ambient Temperature |
≤3.0 cfm/ft2 at up to 0.30 in. of w.c. |
| UL 1784 |
Elevated Temperature |
≤3.0 cfm/ft2 at up to 0.30 in. of w.c. |
aThis assembly was tested without an artificial bottom seal. The assembly may be installed in areas where pressurization is provided to control smoke movement in accordance with Section 4.3.2 of NFPA 105 (2019) and for hoistway opening protection and lobby doorways as allowed in Chapter 30 of the IBC.
EGRESS RATING
| Test Standard |
Test Type |
Rating |
| ASME A17.1 |
Section 2.11.6.3, Unrestricted Egress |
Complies |
