Honeywell MS4103 manual Standard Rectangular Dampers

Damper And Actuator Sizing

HVAC performance depends largely upon airflow, and Honeywell Volume Control Dampers are built for both improved airflow and heavy-duty use. Honeywell has long been the leading source for airflow control, with Volume Control Dampers that meet AMCA-certified Air Performance Standards, the highest established standards for commercial control dampers. Designed to minimize leakage, Honeywell dampers will give you efficient, trouble-free operation for years to come.

Standard Rectangular Dampers

Durable construction details are the cornerstone of Honeywell D1, D2 and D3 Volume Control Dampers. They feature heavy-duty hat channel frames for dependable operation inside ductwork. And all models have low-profile top and bottom frames, creating more free area while reducing pressure loss and reducing actuator torque.

The Right Choice

There’s a Honeywell Volume Control Damper that’s just right for your application. The D1 airfoil extremely low leakage damper presents a lower resistance to airflow typically used in high pressure systems.

The D2 ultra-low leakage damper keeps leakage to a minimum with blade and jamb seals, and is designed for medium- to high-pressure and velocity systems. The D3 low leakage damper is ruggedly built for applications in medium pressure and velocity systems.

3-V Blades - D2 and D3 Dampers

Honeywell Volume Control Dampers feature a 3-V design that’s proven to

meet higher-level system requirements

while minimizing flow-through system loss. Blades are fabricated from a single thickness of 16-gauge galvanized steel with three horizontal structural V-grooves running the length of the blade.

Applications And Operation

Honeywell Volume Control Dampers are designed to control airflow volume in medium- to high-pressure and velocity HVAC systems. Typical applications include volume control of airflow in zoning, air handler unit or economizer applications. Dampers are designed to operate with a wide range of Honeywell electric and pneumatic actuators. Operating range is from 2000 to 4000 fpm, and 2.5 to 6 inch wg. Spring return and non-spring return actuators are available with a wide range of output torque ratings to deliver the precise power needed for your damper application.

Blade Design

Airfoil Blades - D1 Dampers

Honeywell Airfoil Volume Control Dampers feature blades constructed of double skin galvanized steel. This design presents a lower resistance to airflow and has strength that is typically used in high pressure systems.

Certified Performance

Honeywell certifies that models D2 and D3 are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with 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.

		Material				Frame			Blade
						Gauge			Seals
	Galvanized		Stainless	Aluminum					Vinyl	Silicone
S — Standard					16		14	12
O — Optional
D1 Airfoil Extremely Low Leakage	S		O	n/a	S		O	O	n/a	S
Volume Control Damper
D2 Ultra-Low Leakage	S		O	O	S		O	O	S	O
Volume Control Damper
D3 Low Leakage Volume	S		O	O	S		O	O	n/a	n/a
Control Damper

	Bearings			Axles		Linkage			Flange
						Material
Synthetic		Bronze	Stainless	Steel	Stainless	Steel	Stainless	None	Single	Double	Reverse
S		O	O	S	O	S	O	S	O	O	O
S		O	O	S	O	S	O	S	O	O	O
S		O	O	S	O	S	O	S	O	O	O

For a copy of the specification sheet the D1 (63-2671) or D2 and D3 (63-2398), visit customer.honeywell.com.

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