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Home > Vibration Isolation for HVAC Systems > Vibration Isolation Roof Curbs > Model LDR

KINETICS®

Light Duty Rail System

Model LDR

KSR Roof Curb Rail

Features

Description

KINETICS LDR light duty rail isolation system is a low-cost solution designed to isolate residential style condensing units and other light weight equipment (small fans, mini split systems, etc.). LDR eliminates vibration from penetrating into the structure and occupants below.

Standard LDR isolation system orders will include four (4) seismic isolators with snubbers, two (2) pieces of 24" or 48" Unistrut (custom sizes available), and four (4) equipment attachment clip assemblies (clips, strut nuts, and clip bolts).

Application

LDR light duty rail isolation system is recommended for the isolation of rooftop condensing units to eliminate vibration from penetrating into the structure below and disturbing the occupants. LDR is used to isolate an individual condensing unit and is fully customized into long lengths of strut with custom quantities of isolators for large numbers of units in a single area.

Specification

Isolation system shall be comprised of 2 independent support rails with adjustable equipment mounting clips each supported by 2 seismic and wind resistant housed spring isolators. The springs shall have all of the characteristics of free standing coil spring isolators per section D below. Isolators shall consist of a single laterally stable steel coil spring assembled into steel housings designed to limit movement of the supported equipment in all directions.

Housing assembly shall be a steel member that includes provisions for attachment to structural or elevated roof island elements. It shall interface with a coil spring leveling assembly and a 3-axis restraint snubbing element that shall bolt directly to the underside of the equipment support rail. The housing shall be fitted with integral non-skid isolation pads and holes for anchoring the housing to the supporting structure. Housing shall be zinc plated for outdoor corrosion resistance. Housing shall be designed to provide a constant free and operating height within 1/8" (3 mm).

The isolator housing shall be designed to withstand the project design seismic forces in all directions.

Coil spring elements shall be selected to provide static deflections of either 1 or 2 inches as shown on the vibration isolation schedule or as indicated or required in the project documents. Spring elements shall be color coded or otherwise easily identified. Springs shall have a lateral stiffness greater than 1.1 times the rated vertical stiffness and shall be designed to retain a minimum of 0.75 inch travel beyond the rated capacity to accommodate overloads. Non-welded spring elements shall be epoxy powder coated and shall have a minimum of a 1000 hour rating when tested in accordance with ASTM B-117.

Spring rail assembly shall be model LDR as manufactured by Kinetics Noise Control.

LDR Light Duty Rail System
Dimensions and Capacities
LDR-1-120/820 LDR-1-120/820(m)
Pricing and Quotations
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