| 1. | Greenheck Fan Smoke Alarm SSSMDR-501 User Guide ZH GREENHECK Application Model SSSMDR 501 is a 304 stainless steel round smoke damper with extremely low leakage The SSSMDR 501 has been qualified to 3 000 fpm 15 2m s and 4 in wg 1 0 kPa for operational closure in emergency smoke control situations for use in HVAC system applications Ratings Leakage Pressure Maximum Velocity Temperature Class I 4 in wg 1 kPa differential pressure 3000 fpm 15 2 m s 350 F 177 C depending on the actuator Sta |
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