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Link Trim Actuator

The Link Trim Actuator (LTA) is an easy to install actuator used for Oxygen Trim control on single point positioning (Jackshaft) burners.

bulletMounts In-Line using existing Damper Linkage, No custom brackets or jackshaft re-design
bulletField adjustable +/- 0.15" to +/- 0.75" trimming, mechanical stops prevent over-travel
bulletUp to 76 lbs. Thrust Output
bulletSelf-locking, Overload Protected, Electric Actuator with Position Feedback
bulletModel LTA Actuator, PCC-III Controller, SPS Firing Rate Sensor, and model ZP Oxygen Analyzer provide complete Oxygen Trim control package for a Jackshaft Burner

 

Operation

The Preferred Instruments PCC-III Oxygen Trim Controller has an oxygen setpoint programmable as a function of burner firing rate. The controller receives flue gas oxygen signals from the model ZP Oxygen analyzer, determines the oxygen deviation from setpoint, sends a corrective signal to the LTA actuator, which trims the burner air flow.

The existing jackshaft actuator positions the fuel control valve and air damper via the jackshaft linkage. The LTA becomes an integral part of the link (rod) that connects the fan lever arm to the jackshaft lever arm. When the LTA is at mid-stroke, the new fan link is the same length as the existing fan was. The LTA movement ‘lengthens' or ‘shortens' the fan linkage in order to add or subtract air flow to keep the Oxygen at setpoint.

 

Specification

Power: 24 Vac, 3.5 W

Ambient Temp: -4 to 122° F

Input: 24 Vac increase & decrease

Motor: DC motor with electronic overload protection

Operating Thrust: Refer to the “Operating Thrust” table

Travel: Refer to the “Stroke” table

Position Feedback: Potentiometer, 1000 ohm

 

 Specification Continued

Manual Operation: Pushbutton clutch release

Linkage Connections: " dia. x ¾" deep holes

5/16" dia. or ½" MNPT with included Adapters

Stroke Time: 25 second

Dimensions: 4 " W X 5 ¾" H X 6 " L

Motor Housing: NEMA 2

Weight: 5.31 lbs.

 
ADCO Corporate Headquarters
3657 Pine Lane
Bessemer, AL 35022
Phone: (205) 428-2326
Fax:     (205) 428-2395
Watts:  (800) 292-3891
E-Mail: adco@adcoboiler.com
ADCO - Huntsville location
104 Lowry Street
Huntsville, AL 35805
Phone: (256) 536-5951
Fax:     (256) 534-5552
Watts:  (800) 239-5063
E-Mail: dselles@adcoboiler.com
ADCO - Mobile location
6215 Rangeline Road #220
Theodore, AL 36582
Phone: (251) 443-7011
Fax:     (251) 443-7021
Watts:  (800) 435-7273
E-Mail: dthompson@adcoboiler.com
ADCO - Baton Rouge location
6032 "D" Fieldstone Drive
Baton Rouge, LA 70809
Phone: (225) 753-0823 
Fax:     (225) 752-7711 
Watts:  (800) 222-7815
E-Mail: jwillis@adcoboiler.com

ADCO-Jackson, MS        202 East Government St Brandon, MS 39042  Phone: 601-825-4180    Fax: 601-825-4180       Watts: 800-292-3891          E-Mail: mcox@adcoboiler.com