Carrier 33ZCSECTRM, 33ZCFANTRM, 33ZCVAVTRM specifications Range Default Value

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Heat Minimum (PI) — This configuration is the minimum airflow the terminal will control to when the equipment mode is Warm-Up or Heat. If the terminal is not configured for VAV central heating this is the only airflow the terminal will control to for these equipment modes.

Heat Minimum: Units

CFM

Range

0 to 9999 (Limited by

the High Velocity pressure limit alarm)

Default Value

0

Heat Maximum (PI) — This configuration is used to config- ure the maximum airflow at which the zone controller will op- erate if VAV central heat is configured to yes. If the equipment mode is heat or warm-up, and the demand in the space is for heat, the zone controller will calculate the proper airflow need- ed to achieve space temperature set point (operating between the Heat Min and Heat Max).

Heat Maximum: Units

CFM

Range

0 to 9999 (Limited by

the High Velocity pressure limit alarm)

Default Value

4000

Parallel Fan On (PI) — This configuration is used to define the primary airflow setting below which a parallel fan terminal should energize its fan. The setting should be used to allow a low volume of primary airflow to be better diffused into the space.

Parallel Fan On: Units

CFM

Range

0 to 9999 (Limited by

the High Velocity pressure limit alarm)

Default Value

0

Dual Duct CV Airflow (PI) — This configuration defines the Dual Duct, constant volume, total airflow set point.

Dual Duct

 

 

Airflow:

Units

CFM

 

Range

0 to 9999 (Limited by

 

the High Velocity pressure limit alarm)

 

Default Value

4000

Pressure Dependent — Pressure Dependent (PD) set points should be configured for backup pressure dependent operation, if an operating problem with the pressure transducer occurs.

IMPORTANT: Pressure dependent settings are included for use only in the event of a pressure trans- ducer failure. The inclusion of these configuration set- tings does not indicate that Carrier is endorsing this product for pressure dependent operation. In the case of a pressure sensor failure, the zone controller will broadcast a pressure sensor failure message on the CCN bus. These configurations may be used by a ser- vice technician to put the terminal in pressure depen- dent mode until the zone controller can be replaced.

Cool Minimum Position (PD) — This configuration is the minimum damper position the terminal will control to when the equipment mode is Cooling (or Fan Only), or free cooling and the space requirements for cooling are at a minimum.

Cool Minimum

 

 

Position:

Units

%

 

Range

0 to 100

 

Default Value

0

Cool Maximum Position (PD) — This configuration is the maximum damper position the terminal will control to when the equipment mode is cooling (or fan only), or free cooling and the space requirements for cooling are at a maximum.

Cool Maximum

 

 

Position:

Units

%

 

Range

0 to 100

 

Default Value

100

Reheat Minimum Position (PD) — This configuration is for single duct units with ducted reheat. Configure the desired damper position at which the reheat will provide optimum per- formance. This value is compared to the Minimum Cool value and the greater of the two values is used to determine the damper position.

Reheat Minimum

 

 

Position:

Units

%

 

Range

0 to 100

 

Default Value

0

Heat Minimum Position (PD) — This configuration is the Minimum damper position the terminal will control to when the equipment mode is Warm-Up or Heat. If the terminal is not configured for VAV central heating this is the only position the terminal will control to for these equipment modes.

Heat Minimum

 

 

Position:

Units

%

 

Range

0 to 100

 

Default Value

0

Heat Maximum Position (PD) — This configuration is used to configure the maximum damper position at which the zone controller will operate if VAV central heat is configured to yes. If the equipment mode is Heat or Warm-Up and the demand in the space is for heat the zone controller will calculate the prop- er damper position needed to achieve space temperature set point, operating between the Heat Min and Heat Max.

Heat Maximum

 

 

Position:

Units

%

 

Range

0 to 100

 

Default Value

100

Deadband Percent — This configuration is used to configure the Deadband Percent that the airflow will operate with.

Deadband

 

 

Percent:

Units

%

 

Range

0.0 to 100.0

 

Default Value

12.5

TERMINAL SERVICE CONFIGURATION SCREEN — The Terminal Service Configuration screen lists the main con- figuration settings for the air terminal controller. See Table 10.

Terminal Type — This configuration is used to indicate the terminal type that the zone controller is installed on. A 1 is for Single Duct terminals, a 2 is for Parallel Fan terminals, a 3 is for Series Fan terminals, and a 4 is for Dual Duct applications.

Terminal Type: Range

1 to 4

Default Value

1

Primary Inlet Size — The Primary Inlet Size configuration is used to input the inlet diameter of the terminal if used with a round inlet. The Inlet Area configuration is used for oval or rectangular inlets. The zone controller will use the larger value for CFM calculations if both values are configured.

NOTE: Carrier sizes 12, 14, and 16 are oval.

Primary Inlet Size

 

(Inlet Diameter): Units

Inches

Range

3.0 to 24.0

Default Value

6.0

Inlet Area — The Inlet Area configuration is used if the termi- nal has an oval or rectangular inlet. The Primary Inlet Size configuration is used for round inlets. The zone controller will use the larger value for CFM calculations if both values are configured.

Inlet Area:

Units

Square Inches

 

Range

0.0 to 500.0

 

Default Value

0.0

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Contents Installation, Start-Up Configuration Instructions General Typical Carrier Linkage System → Zone Controller Physical Details 33ZCFANTRM Shown HF23BJ042→ VAV Fan Terminal Zone Controller → Single Duct Air Terminal Zone ControllerZone Controller Damper Configuration Low Low Yel Blu Ora Red Wht Com SPT HF23BJ042 PAT Yel → J Zone Controller Wiring Dual Duct Applications Zone Controller Wiring Dual Duct Applications → Install Sensors Airflow Pickup Installation Space Temperature Sensor Wiring Communication Bus Wiring to Zone Controller Primary Air Temperature Sensor Part Number 33ZCSENPAT → Supply Air Temperature Probe Part No Zcsensat Locations Indoor Air Quality CO2 Sensor→ Indoor Air Quality Sensor Wiring Ventilation Rated Based on CO2 Set PointRecommended Cables Color Code RecommendationsHumidity Sensor Wiring → Remote Occupancy Wiring → Typical Water Valve and Sensor Installation Communication Bus WiringInitial Operation and Test Perform the following Configuration → Points Display ScreenDefault Value Display range Network Access Read/Write → Alarm Limit Configuration ScreenPPM → Linkage Coordinator Configuration Screen = low, 3 = high Occupancy Schedule Information Screen Airflow Service Configuration Screen → Set Point ScreenRange Default Value Terminal Service Configuration Screen RndszClockwise Rotation Range Default Value Normal Options Service Configuration ScreenPpm parts per million Secondary Damper Service Configuration Screen SrndszCOOLING, Heating → Linkage Maintenance Screen Occupancy Maintenance Screen Commissioning Mode Display Range → Zone Air Balance/Commissioning Table → Zone Maintenance Table Read/Write Page Copyright 1999 Carrier Corporation

33ZCSECTRM, 33ZCVAVTRM, 33ZCFANTRM specifications

The Carrier 33ZCFANTRM, 33ZCSECTRM, and 33ZCVAVTRM are advanced air conditioning units designed for commercial and light industrial applications. These models represent Carrier's commitment to innovation and energy efficiency, offering unbeatable performance while ensuring minimal environmental impact.

One of the main features of the Carrier 33ZCFANTRM series is its outstanding energy efficiency. These units are designed to meet or exceed Energy Efficiency Ratio (EER) standards, which translates to reduced energy consumption and lower utility bills for users. The implementation of variable speed drive technology allows for precise control of airflow and cooling, enabling the units to adapt to varying load requirements seamlessly. This not only enhances comfort levels but also optimizes energy use.

In terms of design, the Carrier 33ZCSECTRM model stands out with its compact footprint, making it ideal for installation in tight spaces. It features a robust chassis made from high-quality materials that ensure durability and resistance to harsh outdoor conditions. Additionally, the unit is equipped with sound-dampening technology, resulting in quieter operation compared to many traditional systems.

The 33ZCVAVTRM model takes versatility to the next level by incorporating advanced Variable Air Volume (VAV) technology. This allows for customized airflow delivery, ensuring that different areas of a building can be conditioned to meet specific comfort needs. The VAV system helps maintain optimal indoor air quality by continuously monitoring and adjusting airflows based on real-time demand.

Each model also features advanced controls which integrate seamlessly with building management systems. This connectivity provides users with powerful tools for monitoring system performance, enabling predictive maintenance and improving overall operational efficiency.

Moreover, the Carrier 33ZC series employs environmentally friendly refrigerants, which aligns with global sustainability goals. The use of these refrigerants contributes to a lower carbon footprint while still delivering exceptional cooling capacity.

Overall, the Carrier 33ZCFANTRM, 33ZCSECTRM, and 33ZCVAVTRM models epitomize Carrier's innovative spirit, combining cutting-edge technology with superior performance features. These units are well-suited to meet the rigorous demands of diverse commercial applications, promoting both comfort and efficiency in today's dynamic work environments. As businesses evolve, the need for reliable, efficient, and adaptable HVAC solutions becomes paramount, and these Carrier models stand ready to meet that challenge head-on.
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