Carrier 33ZCSECTRM Especificaciones descargar pdf (Pagina 37)

GUIDE SPECIFICATIONS

Zone Controller

Part Numbers:

33ZCFANTRM — VAV Fan Terminal Zone Controller

33ZCVAVTRM — Single Duct Air Terminal Zone Controller

33ZCSECTRM — Secondary Terminal Zone Controller

Part 1 — General

1.01 SYSTEM DESCRIPTION:

The zone controller is a single duct, fan powered, Vari-

able 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 regulating the

flow of conditioned air into the space. Buildings with

diverse loading conditions can be supported by con-

trolling reheat or supplemental heat.

The Single Duct Air Terminal Zone Controller

(33ZCVAVTRM) provides dedicated control func-

tions for single duct terminals with modulating heat or

up to 2 stages of heat.

The VAV Fan Terminal Zone Controller

(33ZCFANTRM) provides dedicated control func-

tions for series fan or parallel fan powered terminals,

single duct terminals with 3 stages of heat, or as a pri-

mary controller for dual duct or zone pressure control

applications.

When the VAV Fan Terminal Zone Controller is used

in conjunction with a secondary terminal and the

33ZCSECTRM secondary terminal zone controller,

either dual duct or zone pressurization applications can

be supported.

1.02 QUALITY ASSURANCE:

A. The control shall be UL or ETL listed to comply

with UL Standard 873; Temperature Indicating and

Regulating Equipment, and UL916-PAZX; Energy

Management.

B. The control shall meet ASHRAE standard, 62-1989

“Ventilation For Acceptable Indoor Air Quality”

(including addendum 62a-1990).

1.03 DELIVERY, STORAGE, AND HANDLING:

Unit shall be stored and handled per manufacturer’s

recommendation.

Part 2 — Products

2.01 EQUIPMENT:

A. Each zone controller shall include a microproces-

sor based controller and shall be an integral part of

the equipment. The zone controller shall control

each function of its associated terminal. All appli-

cation software shall be resident in the zone con-

troller’s memory and shall be factory pre-tested

and pre-configured.

B. The zone controller shall provide stand-alone oper-

ation but shall include the inherent capability to

being added on a network without the addition of

any hardware. Systems that require an intermediate

controller shall not be acceptable.

C. The zone controller shall not require a battery. All

configuration data shall be stored indefinitely in

non-volatile memory. Systems that require a bat-

tery to store data are not acceptable.

D. The zone controller shall be designed to be easily

mounted in a standard NEMA type enclosure,

attached to the unit without special rails or mount-

ing hardware and as local and national electrical

code dictates.

E. All electrical components and control transformers

shall be field mounted and wired inside the control

box, as applicable.

F. Each zone controller shall include the ability to

maintain a 365-day clock with holiday functions

and shall also support network broadcasts of time

for clock synchronization. Each zone controller

shall provide the capability to provide occupancy

scheduling from its own local time schedule, or a

time schedule within another controller on the net-

work. Timed override requests through the space

temperature sensor override button shall be per-

formed by each zone controller without any net-

work requirement. The zone controller shall be

capable of interfacing to a portable PC for config-

uring, or altering the configuration, setting address,

uploads, downloads, etc.

2.02 LINKAGE SYSTEM CAPABILITY:

A. All terminals that are serviced by a common air

handler shall be “LINKED” together to form a sin-

gle virtual load and operate in unison as a complete

system.

B. One zone controller shall be designated as a link-

age master between the Air Handler Controller and

its associated terminals. The networked zone con-

troller(s), through the linkage master, shall inter-

face with a controller installed on the primary air

source.

C. The primary air system interface shall be a factory

supplied microprocessor based controller that

allows total closed loop system control.

D. The Building Control System communications net-

work and factory provided software shall allow

dynamic interaction (linkage) of the air terminals

with the primary air source to create a complete Air

Distribution System (ADS) as later described

within this specification. The bus that serves the

zone controller(s) and air source shall include the

ability to run at 38.4K bps, as a minimum.

Systems that do not include inherent linkage soft-

ware shall state such in their bid/proposal.

2.03 ALARM/ALERT PROCESSING:

A. The zone controller shall contain routine(s) to pro-

cess alarms and alerts. Alarm/alert processing shall

consist of a scan of all applicable point types and

operating conditions.

B. Certain analog alarms/alerts shall only be moni-

tored when the zone controller is in the occupied

mode (i.e., relative humidity, indoor air quality sen-

sor, etc.).

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