Carrier 33ZCSECTRM Especificaciones descargar pdf (Pagina 5)

INPUTS

• space temperature sensor

• primary air damper position (factory-installed)

• airflow sensor (factory installed)

• field-installed remote wall sensor set point adjustment

• optional supply temperature sensor (required for ducted

heat and supply air monitoring)

• optional primary air temperature sensor (one per system

is required for systems which do not utilize a linkage

compatible air source)

• optional IAQ sensor or relative humidity sensor

• optional secondary airflow (zone pressure or dual duct)

• optional remote occupancy contact

OUTPUTS

• internally factory-wired damper actuator

• heating (ducted or non-ducted)

— modulating (floating) heat

— up to 3 stages of electric heat

— two-position heat

• fan start/stop

• secondary damper actuator

POWER SUPPLY — The 33ZCFANTRM requires a 24 VAC

± 10% power source rated at 40 VA (50/60 Hz).

POWER CONSUMPTION — The power requirement siz-

ing allows for accessory water valves and for the fan contactor.

Water valves are limited to 8 VA on both two-position and

modulating hot water. The fan contactor is limited to 11 VA

(holding).

NOTE: If a water valve or fan contactor exceeds these limits,

or external contactors are required for electric heat, then it is

recommended a 60 VA transformer be used. The maximum

rating for any output is 20 VA.

ACCURACY — Terminal airflow (nominal cfm) is rated at

1 in. wg (249 kPa) measured velocity pressure. The zone con-

troller is capable of controlling to as low as 10% or as high as

125% of nominal airflow with an accuracy of ± 3% (nominal)

at any point within the range.

HARDWARE (MEMORY)

FLASH EPROM

DIFFERENTIAL PRESSURE RANGE

0 to 2.0 in. wg (0 to 498 kPa) maximum for the onboard

flow sensor.

SPECIFIED SENSING TEMPERATURE RANGE — The

zone controller space temperature, supply temperature, and pri-

mary air temperature sensing range is –40 to 245 F (–40 to

118 C). The zone controller has an allowable control set point

range from 40 to 90 F (4 to 32 C) for heating and 45 to 99 F

(7 to 37 C) for cooling.

COMMUNICATIONS — The number of controllers is limit-

ed to 128 zones maximum, with a limit of 8 systems (Linkage

Coordinator configured for at least 2 zones). Bus length may

not exceed 4000 ft (1219 m), with no more than 60 devices on

any 1000 ft (305 m) section. Optically isolated RS-485 repeat-

ers are required every 1000 ft (305 m).

At 19,200 and 38,400 baud, the number of controllers is

limited to 128 maximum, with no limit on the number of Link-

age Coordinators.

ENVIRONMENTAL RATINGS

Operating Temperature: 32 to 140 F (0° to 60 C) at 10 to

90% RH (non-condensing)

Shipping Temperature: –40 to 185 F (–40 to 85 C) at 0 to

90% RH (non-condensing)

VIBRATION

Performance vibration: 0.014-in. (0.356 mm) peak to peak

displacement, 5 to 31 Hz; 0.75 G, 31 to 300 Hz

CORROSION

Office environment. Indoor use only.

APPROVALS

Listed under UL 916-PAZX, UL 873, and UL94-5V.

Accessories

SECONDARY TERMINAL CONTROLLER — The

33ZCSECTRM secondary terminal controller is required for

dual duct or zone pressurization applications. For zone pressure

control applications, the secondary terminal is used on a field-

supplied, single zone exhaust damper.

CONDUIT BOX — The 33ZCCONBOX conduit box pro-

vides two conduit connections to the zone controller for instal-

lations requiring the use of conduit due to local electrical codes.

SUPPLY AIR TEMPERATURE SENSOR — The

33ZCSENSAT supply air temperature sensor is required for all

ducted heating applications and stand-alone operation. The sen-

sor is optional on cooling only applications and is used for sup-

ply air monitoring. The sensor has an operating range of –40 to

245 F (–40 to 118 C).

PRIMARY AIR TEMPERATURE SENSOR — The

33ZCSENPAT primary air temperature sensor is required on a

linkage coordinator zone controller if the zone controller is not

using a CCN linkage compatible air source. The sensor is used

to monitor the equipment’s supply air temperature. The tem-

perature can be broadcast to the zone controllers which receive

information from a linkage coordinator. The sensor has an op-

erating range of –40 to 245 F (–40 to 118 C).

SPACE TEMPERATURE SENSOR WITH OVERRIDE

BUTTON — The 33ZCT55SPT space temperature sensor

with override button is required for all applications. The space

temperature sensor monitors room temperature which is used

by the zone controller to determine the amount of conditioned

air that is allowed into the space.

SPACE TEMPERATURE SENSOR WITH OVER-

RIDE BUTTON AND SET POINT ADJUSTMENT —

The 33ZCT56SPT space temperature sensor with override

button and set point adjustment can be used in place of the

33ZCT55SPT space temperature sensor if local set point

adjustment is required. A space temperature sensor is re-

quired for all applications. The space temperature sensor

monitors room temperature which is used by the zone con-

troller to determine the amount of conditioned air that is

allowed into the space. The set point adjustment bar allows

up to a ± 15° F (8° C) temperature adjustment by the room

occupant.

RELATIVE HUMIDITY SENSOR — The 33AMSENRHS000

relative humidity sensor (indoor space) is required for zone hu-

midity control (dehumidification).

NOTE: The relative humidity sensor and CO

sensor cannot be

used on the same zone controller.

INDOOR AIR QUALITY SENSOR — Three different CO

sensors are available for optional demand control ventilation.

The 33ZCSENCO2 sensor is an indoor, wall mounted sen-

sor with an LED (light-emitting diode) display.

The 33ZCT55CO2 sensor is an indoor, wall mounted sen-

sor without display. The CO

sensor also includes a space tem-

perature sensor with override button.

The 33ZCT56CO2 sensor is an indoor, wall mounted sen-

sor without display. The CO

sensor also includes a space tem-

perature sensor with override button and temperature offset.

NOTE: The relative humidity sensor and CO

sensor cannot be

used on the same zone controller.

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