Carrier 33ZCVAVTRM Specifications download pdf (Page 185)

Wiring connections

Field wiring is 18 to 22 AWG (American Wire Gage). The

VVT zone controller is a NEC (National Electronic Code)

Class 2 rated device.

Inputs

• Space temperature sensor

• T55/T56 wall-mounted space temperature sensor

interface

• T56 space temperature set point reset (slide potentiom-

eter)

• Optional supply air temperature sensor (required for

reheat and stand-alone operation)

• Optional primary air temperature sensor (one required

per system that does not utilize a linkage compatible air

source)

•Optional CO

sensor

• Optional relative humidity sensor (for monitoring only)

• Optional remote occupancy contact input

Outputs

• Integrated factory-wired pressure dependent damper

actuator

• Heating (requires VVT Zone Controller Option Board

33ZCOPTBRD-01)

— Two-position hot water

— One to three stages of heat

— Modulating hot water valve

— Combination radiant/ducted heat stages

• Terminal fan (requires VVT Zone Controller Option

Board 33ZCOPTBRD-01)

• Damper position output (0 to 10v) for linked dampers

Power supply

The power supply is 24 vac ± 10% at 40 va (50/60 Hz).

Communications

The number of controllers is limited to 128 devices maxi-

mum, with a limit of 8 systems (Linkage Coordinator con-

figured 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

Linkage Coordinators. Bus length may not exceed 1000 ft

(305 m).

Environmental ratings

Operating Temperature. . . . .32 F to 131 F (0° C to 55 C)

Storage Temperature . . . . . .32 F to 158 F (0° C to 70 C)

Operating Humidity . . . . . . 10% to 95%, non-condensing

Storage Humidity . . . . .10% to 41% at 158 F, condensing

Power consumption

The power requirement sizing allows for accessory water

valves and for the fan contactor. Water valves are limited to

15 va. The fan contactor is limited to 10 va (holding).

Vibration

Performance Vibration:

1.5 G measured at 20 to 300 Hz

Corrosion

Office environment. Indoor use only.

Approvals

•NEC Class 2

• UL 916-PAZX and UL 873

• Conforms to requirements per European Consortium

standards EN50081-1 (CISPR 22, Class B) and

EN50082-1 (IEC 801-2, IEC 801-3, and IEC 801-4)

for CE mark labeling

• UL94-5V (actuator)

Accessories

Supply air temperature sensor — The 33ZCSENSAT

supply air temperature sensor is required for heating appli-

cations or stand-alone operation. The sensor has an oper-

ating range of –40 to 245 F (–40 to 118 C) and includes a

6-in. stainless steel probe and cable.

Duct air temperature sensor — The 33ZCSENDAT

Duct Air Temperature Sensor is required for cooling only

applications on non-33ZC dampers. The sensor is used for

supply air monitoring. The sensor has an operating range

of –40 to 245 F (–40 to 118 C) and includes a mounting

grommet and 75-in. cable.

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 Carrier network, linkage compatible air source.

The sensor is used to monitor the equipment’s supply-air

temperature. The temperature is broadcast to the system

Zone Controllers which receive information from the mas-

ter. The sensor has an operating range of –40 to 245 F

(–40 to 118 C) and includes a 6-in. stainless steel probe

with conduit box.

Space temperature sensor with override button —

The 33ZCT55SPT Space Temperature Sensor with Over-

ride Button is required for all applications. The space tem-

perature sensor monitors room temperature, which is used

by the Zone Controller to determine the amount of condi-

tioned air that is allowed into the space.

Space temperature sensor with override 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 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. The set point adjustment bar is configurable

Specifications

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Carrier 33ZCVAVTRM Specifications Page 185

Comments to this Manuals

Carrier 33ZCVAVTRM Specifications Page 185

Comments to this Manuals

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