Comfort Controller I/O Module (PCB2) — This input/output module is factory installed in the 50XJ unit and allows additional field points (8 inputs and 8 outputs): VFD (variable frequency drive) Bypass, VAV Terminals Control, Building Ventilation, and Heating Interlock.

Comfort Controller I/O Module (PCB3) — This accessory control input/output module can be ordered separate- ly and field-installed in the 50XJ unit. This module allows the addition of the following field-installed sensors: Tower Sump Temperature Sensor, Leaving Water Temperature Sensor, Building Pressure Sensor, CO2 Sensor, Indoor Relative Humidity Sensor, and Outdoor Temperature Sensor.

The accessory I/O module provides the following control outputs (relays): 4-stage heat control, water pump request, tower request, modulating exhaust fan, and external dehumidification.

Local Interface Display — The Local Interface Display (LID) is mounted on the front of the 50BV,XJ units. A number of user-adjustable features are entered/changed using the display keypad. These features described in detail in the Using the Local Interface Display section of this manual.

PCB Addresses — Switch 1 (SW1) is used to set each controller’s address. Individual DIP switches on each board are used to set the addresses for individual hardware points. PCB1 switches are factory-set for hardware points 1-15, PCB2 DIP switches are set for points 17-32, and PCB3 for points 33-48. For more information, refer to Table 1 and the Optional and Field-Installed Accessory Sensors/Devices section.

Control Module Communication — When power is applied to the OMNIZONE™ System Control panel, the red LED (light-emitting diode) on the top front of the processor module will flash at a rapid pace (about twice a second) for the first 30 to 60 seconds. See Fig. 1. This rapid flash will then be replaced by a slower paced flash (about once per second).

The green LED below the red LED will start flashing. This LED indicates input/output communications for accessory input output modules and the LID.

The yellow LED (the third LED from the bottom of the con- troller [PCB1]) will flash when the controller is broadcasting CCN messages to a laptop or other computer.

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Carrier 50XJ064-104 specifications
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50XJ064-104 specifications

The Carrier 50XJ064-104 is a high-efficiency rooftop air conditioning system designed to deliver exceptional cooling and heating capabilities for diverse commercial applications. One of the standout features of this model is its robust cooling capacity of 64,000 BTUs, making it suitable for mid to large-sized spaces. The 50XJ064-104 is engineered using advanced technologies to ensure energy efficiency and reliable performance, contributing to reduced operational costs and environmental sustainability.

One of the primary technologies employed in the Carrier 50XJ064-104 is the high-efficiency scroll compressor. This component plays a pivotal role in optimizing energy usage while delivering consistent cooling output. The system also incorporates an economizer that allows for enhanced energy savings by utilizing outdoor air for cooling when conditions are favorable. This not only decreases reliance on the compressor but also improves indoor air quality.

The microprocessor-based controls in the 50XJ064-104 provide precise temperature regulation, ensuring optimal comfort levels in various applications. These controls allow for easy programming and can be integrated into building management systems for centralized oversight. Additionally, the unit features a built-in fault detection and diagnostic system that aids in identifying potential issues before they escalate, minimizing downtime and maintenance costs.

The Carrier 50XJ064-104 is designed with durability in mind. It features a weather-resistant cabinet, designed to withstand harsh outdoor conditions and prolong service life. The high-quality insulation within the unit not only enhances energy efficiency but also minimizes noise levels, making it an ideal choice for urban environments where sound control is critical.

Another important characteristic is its environmentally friendly R-410A refrigerant, which has a lower impact on ozone depletion compared to older refrigerants. This aligns with Carrier's commitment to creating sustainable HVAC solutions that comply with current environmental regulations.

Overall, the Carrier 50XJ064-104 stands out for its combination of efficiency, advanced technologies, and durable construction. Whether for commercial buildings, retail spaces, or industrial applications, this rooftop air conditioning unit is designed to provide reliable performance and comfort year-round.
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