GREENHECK SMD-201M Modulating Smoke Damper Owner’s Manual

GREENHECK SMD-201M Modulating Smoke Damper

Specifications

• Model: SMD-201M
• Application: Leakage rated modulating smoke damper with 3V style blades
• Frame Material: Galvanized steel
• Frame Material Thickness: 16 ga. (1.5mm)
• Blade Material: Plated steel out of airstream, concealed in jamb
• Blade Material Thickness: 16 ga. (1.5mm)
• Blade Type: 3V Parallel
• Blade Action: LH (Left Hand) or RH (Right Hand)
• Axle Bearings: Stainless Steel
• Axle Material: Plated steel

Product Usage Instructions

Installation

• Follow the installation guide provided in the document links.
• Ensure the damper is selected based on the size requirements mentioned.

Damper Selection Guide

• Refer to the damper selection guide for choosing the appropriate damper size based on the airflow and pressure drop requirements.

Warranty

• Check the warranty details provided for any coverage related to the SMD-201M model.

FAQ

Q: Can the SMD-201M be installed both vertically and horizontally?

A: Yes, the SMD-201M can be installed vertically with blades running horizontally or horizontally as per your requirements.

Q: What are the pressure drop specifications for different sizes?

A: The pressure drop varies based on the size of the damper. Refer to the pressure drop velocity charts provided in the manual for detailed information.

Application

• Model SMD-201M is a leakage-rated modulating smoke damper with 3V-style blades.
• Model SMD-201M may be installed vertically (with blades running horizontally) or horizontally and is rated for airflow and leakage in either direction.

Ratings
UL 555S Leakage Rating

• Leakage Class: I
• Operational Rating: Actual ratings are size-dependent
• Velocity: Up to 2000 fpm (10.2 m/s)
• Pressure: Up to 4 in. wg (1 kPa)
• Temperature: Up to 250°F (121°C) – depending upon the actuator

Construction

Frame Material

Thickness

| ****

16 ga. (1.5mm)

Frame Type

| 5 in. x 1in.

(127mm x 25mm) hat channel

Blade Material| Galvanized steel
Blade Material

Thickness

| ****

16 ga. (1.5mm)

Blade Type| 3V
Blade Action| Parallel
Linkage| Plated steel out of airstream, concealed in jamb
Axle Bearings| 316SS
Axle Material| Plated steel
Blade Seals| Silicone
Jamb Seals| Stainless Steel

• W&H dimensions furnished approximately 1⁄4 in. (6mm) undersize. (Add sleeve thickness for overall sleeved damper dimension)
• Actuator is shown as left-hand internal. External is available.

Model SMD-201M meets the requirements for smoke dampers established by:
National Fire Protection Association

• NFPA Standards 90A, 92, 101 & 105

IBC International Building Codes

• CSFM California State Fire Marshal
• Leakage (Smoke) Damper Listing (#3230-0981:104)

Note
The frames are constructed with reinforced corners. Low profile head and sill are used on sizes less than 17 in. (432mm) high for lower pressure drop and improved damper performance.

W x H

| Minimum Size| Maximum Size
---|---|---
Single Section| Multiple Section
4 in. wg (1 kPa) pressure
Inches| 6 x 6| 36 x 36| 72 x 72
mm| 152 x 152| 914 x 914| 1829 x 1829

Options

• Breakaway connections
• Clean wrap
• Greenheck test switches (GTS)
• Grille tabs
• Momentary test switch
• Retaining angles
• OCI (open-closed indication switches)
• Sealed transitions and sleeves
• Security bars
• Smoke detectors
• Transitions: C, O, R

Document Links

Pressure Drop

AMCA Figure 5.2

12 in. x 12 in. (305mm x 305mm)

24 in. x 24 in. (610mm x 610mm)

36 in. x 36 in. (914mm x 914mm)

12 in. x 48 in. (305mm x 1219mm)

48 in. x 12 in. (1219mm x 305mm)

AMCA Figure 5.3

12 in. x 12 in. (305mm x 305mm)

24 in. x 24 in. (610mm x 610mm)

36 in. x 36 in. (914mm x 914mm)

12 in. x 48 in. (305mm x 1219mm)

48 in. x 12 in. (1219mm x 305mm)

AMCA Figure 5.5

12 in. x 12 in. (305mm x 305mm)

24 in. x 24 in. (610mm x 610mm)

36 in. x 36 in. (914mm x 914mm)

12 in. x 48 in. (305mm x 1219mm)

48 in. x 12 in. (1219mm x 305mm)

Greenheck Fan Corporation certifies that the model
SMD-201M shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed under AMCA Publication 511 and comply with the requirements of the AMCA Certified Ratings Programs. The AMCA Certified Ratings Seal applies to air performance ratings only.

Space Envelopes

• Externally mounted actuators always require space outside of the damper sleeve. The “S” dimension illustrates the clearance required for various available actuators.
• Worst case space envelopes are shown below. Exact dimensions may vary based on specific damper configuration. Consult the factory for specific space envelopes if necessary.

Actuator Type/Model

| B| T| S
---|---|---|---
With OCI, RRL,

or TOR

| With OCI, RRL,

or TOR

| Piggy back
No| Yes
FSAFB24 SR(-S)

Belimo

| 11⁄2 in. (38mm)| 91⁄4 in. (235mm)| 6 in. (152mm)| 9 in. (229mm)

These dimensions are 0 in. for damper heights of 18 in. (457mm) or more.

Contained Actuator Option
Dampers can be ordered with a “contained actuator option”. This option will result in the actuator being oriented such that it extends no more than 11⁄2 inches above or below the sleeve. Note that some damper configurations that are 11 inches high or less will have the OCI mounted on the side opposite the actuator when the contained actuator option is selected.

Sleeve and Sideplate Dimensions

• The drawings below and the corresponding table show the position of the SMD-201M damper when mounted in a factory sleeve (“A” dimension). The standard mounting locations provide enough space for the mounting of actuators, and controls and allow space for installation of retaining angles and duct connections. The following options may affect the range of available mounting locations: smoke detector, NEMA 7 enclosure, transitions, security bars, and grille tabs.
• The standard location of a damper mounted in a factory sleeve (“A” dimension) is shown below. The damper can be positioned at other locations within a range of 6 in. (152mm) to 16 in. (406mm) for the “A” dimension.

in. (mm)

| With Sleeve| Sideplate

Damper Location “A”

---|---|---
Minimum Damper Location “A”| Maximum Damper Location “A”
Dampers with no OCI| 7 3⁄16 in. (183)| 16 (406)| 63⁄16 (157)
Height < 12 in. (305) OCI| 12 (305)| 16 (406)| 12 (305)
Height > 12 in. (305) OCI| 7 3⁄16 in. (183)| 16 (406)| 12 (305)

NOTE: Entire damper frame is not required to be installed within the wall. The damper blades, when closed should be contained within the wall.

Transitioned Damper Dimensions

When a smoke damper is being used in conjunction with round or oval ductwork, the SMD-201M can be supplied in a factory sleeve with round or oval transitions on both ends of the sleeve. Dampers should be ordered to the duct dimensions. The drawings below show the overall damper size.

Multiple Section Dampers

• Dampers larger than the maximum single section size are supplied as a factory assembly of two or more sections of equal size.
• The following figures show the maximum damper section size and assembly configurations for multi-section dampers.

Copyright ® 2024 Greenheck Fan Corporation SMD-201M, R14, January 2024 Greenheck Fan Corporation reserves the right to make product changes without notice

CONTACT

• P.O. Box 410
• Schofield, WI 54476-0410
• 715.359.6171
• greenheck.com.

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