AIR TERMINALS AND FRESH AIR DAMPER (50XJ PCB2) — The VAV Terminal Open (TRMOP), Ventilation Output (VENTR), VAV Terminals Control (TRMCT), and Heat Interlock Relay (HIR) terminals provide dry contacts to command the VAV terminals open; a ventilation damper open; VAV terminals to control to their cooling set points; and VAV terminals to control to their heat set points, respectively.

REMOTE OCCUPANCY (ROCC) (TB2 50BV, TB6 50XJ) — The 50XJ,BV unit may be commanded by a remote control system or a twist timer to become occupied and run when a set of dry contacts close. In order for this to occur, wire the contacts to ROCC and C.

SMOKE DETECTOR/FIRE ALARM SHUTDOWN (FSD) (TB2 50BV, TB6 50XJ) — To allow a smoke detector to shut the 50XJ,BV unit down, remove the jumper from FSD to C and wire these terminals to a set of normally closed contacts on the smoke detector.

ALARM (ALARM) AND WARNING (WARN) OUTPUTS (TB2 50BV, TB6 50XJ) — Two dry contacts output a dis- crete signal when the alarm and warning lights on the display are lit. To pick up the alarm output signal, wire between the ALARM and ALM-CM terminals. To pick up the warning output signal, wire between the WARN and ALM-CM terminals.

 

 

RED

 

 

BLK

J6

RED

RED

6

 

 

7

BLK

BLK

 

 

1

2

3

4

5

6

RED(+)

 

 

 

 

 

 

WHT(GND)

CCN COM

 

 

 

 

 

 

BLK(-)

 

 

 

 

 

 

 

 

 

 

SEN

 

 

 

 

 

SW1

 

 

 

 

 

 

 

 

 

 

 

BRN (GND)

SENSOR WIRING

 

 

 

 

 

BLU (SPT)

 

Fig. 3 — Space Temperature Sensor

Typical Wiring (33ZCT55SPT)

RED

BLK

RED

BLK

SENSOR 1

SENSOR 2

SENSOR 3

SENSOR 4

SPACE TEMPERATURE AVERAGING — 4 SENSOR APPLICATION

 

J6

 

RED

RED

 

RED

 

 

6

 

 

BLK

 

BLK

 

BLK

 

7

 

 

 

 

BLK

RED

SENSOR 1

SENSOR 2

SENSOR 3

 

 

 

 

 

RED

RED

 

 

 

BLK

BLK

 

BLK

RED

SENSOR 4

SENSOR 5

SENSOR 6

 

 

 

LEGEND

 

RED

RED

 

 

 

 

Field Wiring

 

BLK

BLK

 

 

 

SENSOR 7

SENSOR 8

SENSOR 9

SPACE TEMPERATURE AVERAGING — 9 SENSOR APPLICATION

Fig. 4 — Space Temperature Averaging

7

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Image 7
Carrier 50XJ064-104 specifications Space Temperature Sensor Typical Wiring 33ZCT55SPT

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.