Make Electrical Connections, Field Power Supply

INSERT SIDE DRAIN PLUG FOR DOWN DRAIN USE.

DRILL 5/8” DIA. (0.625 mm) HOLE THRU FOR DOWN DRAIN USE.

50PG03-- 07

C10321

Fig. 5 - Condensate Drain Pan

OPTIONAL UNIONS

TO ALLOW FOR CONDENSATE

PAN REMOVAL

4" (102mm)

CONDENSATE

PAN ACCESS

PANEL

C06234

Fig. 6 - External Trap for Condensate Drain

NOTE: Trap should be deep enough to offset maximum unit static difference. A 4-in. trap is recommended.

C06291

Fig. 7 - Condensate Drain Piping Details

Step 6 — Make Electrical Connections

(For more details, refer to the Controls, Start-up, Operation, and Troubleshooting manual).

Field Power Supply

All 208/230-v units are factory wired for 230-v power supply. If the 208/230-v unit is to be connected to a 208-v power supply, the transformers (TRAN1 and TRAN2) must be rewired by moving the black wire with the 1/4-in. female quick connect from the 230-volt connection and moving to the 200-volt 1/4-in. male terminal on the primary side of the transformer.

Refer to unit label diagram for additional information. Leads are provided for field wire connections. Use UL (Underwriters Laboratories) approved copper/aluminum connector.

When installing rooftop units, provide safety disconnect per NEC (National Electrical Code) Article 440 or local codes. For non-fused disconnects, size the disconnect according to the sizing data provided in the electrical data tables. If a fused disconnect is used, determine the minimum size for the switch based on the disconnect sizing data provided in the electrical data tables and then coordinate the disconnect housing size to accommodate the Maximum Overcurrent Protection (MOCP) device size as marked on the unit informative plate. (See Table 2 and 3.) All field wiring must comply with NEC and local codes. Size wire based on MCA (Minimum Circuit Amps) on the unit informative plate. See Fig. 8 for power wiring connection to the unit leads and equipment ground.

Route power and ground lines through control box end panel or unit basepan (see Fig. 2) to connections as shown on unit wiring diagram and Fig. 8. Factory leads may be wired directly to the disconnect.

50PG03-07 specifications

The Carrier 50PG03-07 is a cutting-edge rooftop unit designed to provide exceptional heating and cooling capabilities for commercial spaces. Known for its durability and efficiency, this model is part of Carrier's renowned line of packaged rooftop units, combining advanced technologies with a user-friendly design.

One of the standout features of the 50PG03-07 is its energy efficiency. This unit is equipped with a high-efficiency compressor that maximizes performance while minimizing energy consumption. The unit often boasts a high SEER (Seasonal Energy Efficiency Ratio) rating, making it an environmentally friendly choice for businesses looking to reduce their operating costs and carbon footprint.

The 50PG03-07 incorporates advanced controls, including a microprocessor-based control system that allows for precise temperature management and monitoring. This system not only enhances user comfort but also provides diagnostic capabilities, ensuring the unit operates at peak performance and identifying any potential issues early on.

In terms of design, the Carrier 50PG03-07 features a compact and robust structure that is built to withstand various weather conditions, ensuring longevity and reliability. The unit’s easy access panels simplify maintenance, allowing technicians to perform routine checks and repairs without cumbersome disassembly.

The air distribution system of the 50PG03-07 is engineered for optimal airflow, enhancing comfort across different areas of a building. It features multiple options for air handling, including variable air volume controls, which allows for customized air delivery to suit specific space requirements.

Noise reduction technology is also a priority in this model. The unit is designed to operate quietly, minimizing disruptions in office environments, retail settings, or other commercial spaces. This ensures that occupants can focus on their tasks without being disturbed by mechanical sounds.

Furthermore, the Carrier 50PG03-07 is adaptable with various accessories that can enhance its functionality, such as economizers for improved ventilation and humidity control. By integrating these components, businesses can create an efficient and effective HVAC system tailored to their specific needs.

Finally, the Carrier 50PG03-07 meets stringent industry standards for safety and performance, providing users with peace of mind. With its blend of innovative technology, energy efficiency, and construction resilience, the 50PG03-07 remains a popular choice for businesses seeking reliable climate control solutions.