Carrier 33ZCVAVTRM Specifications download pdf (Page 2)

2

• capable of local set point

adjustment with field-installed

temperature sensor (with

temperature offset)

• both controller housing and actuator

are UL94-5V plenum rated

Features/Benefits

Flexibility for every application

The zone controller is a single duct, fan

powered, variable air volume (VAV)

terminal control with a factory-

integrated controller and actuator.

The zone controller maintains precise

temperature control in the space by

operating the terminal fan and regulat-

ing the flow of conditioned air into the

space.

Buildings with diverse loading

conditions can be supported by con-

trolling reheat (single duct only) or

supplemental heat. The zone controller

can support single position hot water,

modulating hot water, 2-stage electric,

or perimeter heat.

Carrier Linkage System

compatibility

When linked to a Carrier Linkage

System, the zone controller provides

numerous features and benefits such as

weighted average demand for system

operation, intelligent supply-air

temperature reset, set point averaging,

global set point schedule, and occu-

pancy scheduling. Duct static reset for

the air source is provided, based on

terminal requirements.

Additional control features

The zone controller provides additional

control features such as Occupied/

Unoccupied scheduling initialized via

the network. The zone controller offers

override invoked from a wall sensor

during unoccupied hours from 1 to

1440 minutes in 1-minute increments.

Optional Indoor Air Quality (IAQ) or

relative humidity monitoring and con-

trol are also available.

Simple actuator connection

The zone controller control assembly

contains an integral VAV actuator

assembly that is field mounted to the

VAV terminal damper shaft, similar to

the mounting of a standard actuator.

The actuator is rated at 35 lb.-in.

(3.95 N-m) torque, a 90-degree stroke,

and provides second nominal timing at

60 Hz. The actuator is suitable for

mounting onto a

3

/

8

-in. (9.5 mm)

square or round VAV box damper

shaft, or onto a

1

/

2

-in. (13 mm) round

damper shaft. The minimum VAV

box damper shaft length is 1

3

/

4

-in.

(45 mm). The zone controller is

designed for vertical or horizontal

mounting.

Ease of installation

The zone controller is provided with

removable connectors for power and

communications. The zone controller

has non-removable screw type connec-

tors for inputs. The removable connec-

tors are designed so that they can be

inserted one way so as to prevent

installation errors. The zone controller

also provides an RJ-14 modular phone

jack for the Network Service tool

connection to the module via the

Carrier Comfort Network (CCN)

communications.

An optional Conduit Box Cover

(Part Number 33ZCCONBOX)

provides for field wiring connection via

conduit. The conduit box is designed

to accept two

1

/

2

-in. (13 mm) EMT

conduits.

User Interface

The 33ZCVAVTRM is designed to

allow a service person or building

owner to configure and operate the

unit through the CCN user interfaces.

A user interface is not required for day-

to-day operation. All maintenance,

configuration, setup, and diagnostic

information is available through the

Level II communications port to allow

data access by an attached computer

running Network Service Tool,

ComfortVIEW

™

, or ComfortWORKS

®

software.

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