MSD-GB-20C2-A-R

UL-555S Test Ratings

Leakage Rating : Class – I

Max Velocity : 2000 fpm

Temperature : 250 °F (121 °C)

Max Operating Pressure: 4 in. w.g (1000 pa)

Standard Construction

Frame

16 gauge (1.4 mm – 1.7 mm) thick galvanized steel.

Blades

Parallel operated 3 ‘V’ type blade made of16 gauge (1.4 mm – 1.7 mm) thick galvanized steel.

Blade Seals

Silicon rubber blade seals.

Jamb Seals

Stainless steel.

Jack Shaft

½” x ½” (12 mm) Galvanized steel square shaft.

Actuator

Honeywell (24V AC, 120V AC, 230V AC).

Sleeve

Minimum 0.9 mm, single section is field or factory installed.
Multiple section is factory installed.
Sleeve thickness as per NFPA table 3-4.6.3.

Limit Switches

For BMS open / close indication.

Optional Fittings

Retaining Angles

1½” x 1½” x 16 gauge (40 x 40 x 1.5 mm).

Thermal Response Device (TRD)

165°F.

Indicator

Externally mounted open, close visible Indicator.

Push Button

For manual reset of damper.

Transitions (R)

Neck adapter for round duct connections.

Junction Box

Smoke Detector

Model : MSD-GB-20C2-A/R UL 555S Damper meets the required standards of SMACNA, NFPA, IBC, BOCA, ICBO, UL.

Actuator location standard: Left side from rear view
(Jack shaft view)

Note :
FC : Fail Close in the event of Fire
FO : Fail Open in the event of Fire

WHILE ORDERING INDICATE THE DAMPER IS FC/FO (FAIL CLOSE / FAIL OPEN)

Optional Construction (UL Certification N/A)

Frame : Stainless Steel 16 gauge (304/316L)

Blade : Stainless Steel 16 gauge (304/316L)