Installation & Operation Manual - Model AV3000
Contents of this Manual are Subject to Change Without Notification
Page 1
SECTION 1 - INTRODUCTION
1.1 Description
The AV3000 airflow control valve - AccuValve
®
- incorporates high accuracy airflow
sensing with a revolutionary but simple design. The AccuValve
®
divides the airflow
into two equal chambers using an airfoil shaped compression section. Each
chamber is comprised of a vortex shedding airflow sensor, a modulating control
blade and a static regain section. As air enters the chambers it accelerates and
compresses, creating a laminar zone optimum for measuring airflow velocity. The
vortex shedding airflow sensors provide a digital pulse train to the airflow transmitter
which is directly proportional to the air flow velocity in each chamber of the
AccuValve
®
. The AccuValve
®
transmitter provides an extremely accurate and
repeatable analog output signal representing volumetric airflow rate which is
compatible with all major BMS DDC controllers.
1.2 AV3100 Major Components Identified
Airflow Inlet View
Airflow Discharge View
Electric Actuator
Valve Housing
Access Cover
Airflow Transmitter
Round AccuValve
®
Airflow
Sensor
Compression
Section
Drive Shaft
Actuator
Linkage
Static Regain
Section
Modulating
Control
Blades
Follower
Shaft
Actuator
