A: There are a wide variety of actuators types, operating modes, fail positions, and accessories offered, the most common used for commercial dampers are identified herein. Contact your local Ruskin representative for a selection specific to your application. a. Types: (1) Electric (motor-operated) 24Vac/Vdc to 230Vac (2) Pneumatic (air-operated) 25psi to 120psi (3) Manual hand quadrants b. Operating modes: (1) Manual (2) 2-Position (3) Modulating c. Fail position: (1) Non fail-safe (fail in place) (2) Fail-safe (fail open or closed) d. Ratings: (1) Low temperature (2) NEMA 2,4,4x,7, or 9. e. Options and accessories: (1) Position feedback (4-20mA, 3-15psi, or switches) (2) Pressure regulators (3) Manual overrides Representative Locator LINK Actuators and Damper Accessories LINK

A. You would need to purchase the JS1X1 kit. B. You will need a MBBELGCAIN (Internal mounting bracket)

A. No. There is not a Thrust Bearing option on the CD355 or the CD356. Please use the CD35 or CD36. CD35 LINK CD36 LINK

A. Pressure drop is the resistance to airflow across an open damper and increases as turbulent flow increases. The total resistance of airflow in the system must be considered when sizing air movement devices such as fans.

A. Air Leakage is the airflow rate through the closed damper for a given pressure differential across the damper. Understanding damper leakage rates and leakage classes enables specifiers, contractors, and building owners to identify the correct damper products. Specifying and installing low-leakage dampers (Class 1 preferred, Class 2 at a minimum by code) helps ensure that the building HVAC system is operating at its most energy-efficient level. Damper Leakage Rates LINK

A: An actuator is a device that causes the damper to cycle open and closed. Ruskin offers a wide variety of manual, electric, and pneumatic actuators. Actuators and Damper Accessories LINK

A: An airfoil blade shape is stronger and can handle higher pressures when the blades are closed, and has lower pressure drop when damper is open because air flows more smoothly across it. V-groove shape blade will produce higher pressure drop because air flow is more turbulent across it, and will also produce higher noise at increased velocities.

A: Santoprene is the default on most airfoil blade damper models with an option for silicone. Vinyl coated polyester is used on v-groove blade damper with an option for silicone.

A: Our recommendation would be our CE (critical/coastal environment) models either CD50CE or TED50CE which both are extruded aluminium with 7 mils thick anodized finish, stainless steel linkage and non-corrosive bearings. Both have airfoil shape blades and meet AMCA Class 1A leakage when closed. The TED50CE has insulated blades and is thermally efficient with an R value of 2.16[hr·ft2·°F/BTU] tested to ASTM C1363-2011. CD50CE Critical Environment Damper LINK TED50CE Critical Environment Damper LINK

A: Our DC (data center) models would be recommended; CD60DC, CD50DC and TED50DC. The CD60DC is made of galvanized steel, and CD50DC & TED50DC are made of extruded aluminium. All three models have airfoil shape blades for high performance and meet AMCA Class 1A leakage when closed. The TED50DC has insulated blades and is thermally efficient with an R value of 2.16[hr·ft2·°F/BTU] tested to ASTM C1363-2011. CD60DC Data Center Damper LINK CD50DC Data Center Damper LINK TED50DC Data Center Damper LINK Data Center Products Brochure LINK

A. Your local Ruskin representative can be found at this link. Representative Locator LINK

A. The lead time on commercial orders can depend on order requirements and complexity. Contact your local Ruskin representative approximate lead-time. Representative Locator LINK

A. Ruskin offers a variety of “Express” options on commercial products. Contact your local Ruskin representative for options. Representative Locator LINK

A. Expedited delivery options depend on product weight and size of crate. Contact your local Ruskin representative for options. Representative Locator LINK

A. Ruskin products carry a standard 5-year (60 month) warranty on material and workmanship following the date of delivery. Limited Warranty LINK

A: Yes, contact your local Ruskin representative for details.Representative Locator LINK

A. Yes, Ruskin can include test dampers for job specific requirements at additional cost. Contact your local Ruskin representative for details. Representative Locator LINK

A: Contact your local Ruskin representative to receive O&M manuals. Representative Locator LINK

A. Yes replacement parts are available. Please see parts catalog for more information Parts Catalog LINK