Controller Communication - Honeywell CVL4022ASVAV1 Engineering Manual

DESCRIPTION
The CVL Controllers are configurable direct digital controllers
designed for pressure independent or pressure dependent
single duct air terminal unit control solutions. The controllers
feature preprogrammed heating/cooling or reheat control
algorithms for VAV Box control applications. They can be
configured to match a wide range of VAV applications. They
use Echelon® LONWORKS® communication technology and
the Free Topology Transceiver (FTT) for greater installation
flexibility.
Two models of the CVL controller are available, CVL4022AS-
VAV1 and CVL4024NS-VAV1. The CVL4022AS-VAV1 model
consists of a controller and a floating actuator. The
CVL4024NS-VAV1 model does not include an actuator. Both
models contain an integral microbridge air flow sensor that
provides flow measurement for pressure independent
applications.
The CVL controller controls the space temperature in a given
zone by modulating a damper and/or regulating a reheat coil
in a Variable Air Volume Box that delivers air to one space.
The controller is capable of stand-alone operation; however,
optimum functional benefits are achieved when the network
communication capabilities are used.
Controller Communication
Model Protocol
CVL4022AS- LonWorks
VAV1
CVL4024NS- LonWorks
VAV1
31-00083—02
Table 1. Controller Configurations
UI
(Universal
Application Input
VAV 4
VAV 4
2
The Zio (TR71/TR75 only) and TR2x series of wall modules
are used in conjunction with the CVL Controllers. Zio is the
first LCD Wall Module to communicate via a two-wire, polarity
insensitive bus with the Honeywell Spyder and Stryker
controller families. The CVL controllers can be configured in
Zio.
AO
DI (Digital (Analog (Digital
Input) Output) Output)
0 2
0 2
Velocity
DO Pressure Series 60
Sensor Floating
(Microbridge) Actuator
2 YES
4 YES
YES
NO