Phasing, Power Wiring | Johnson Controls PD 180 THRU 240 specs

430645-YIM-D-0610

Power Wiring

Check the available power and the unit nameplate for correct voltage. Run the necessary number of properly sized wires to the unit. Provide a disconnect switch (if not included with the unit) and fusing as required (Factory disconnect is a fused disconnect /breaker). Route the conduit through the large knockout located near the electrical box. See Table 5 for Electrical Data.

The disconnect switch may be bolted to the side of the unit but not to any of the removable panels; which would interfere with access to the unit. Make sure that no refrigerant lines will be punctured when mounting the disconnect switch, and note that it must be suitable for outdoor installation.

All power and control wiring must be in accordance with National and Local electrical codes.

Control Wiring

Route the necessary low voltage control wires from the Simplicity™ control board to the thermostat and also between the terminal blocks inside the heat pump and evaporator control boxes. Refer to Figures 3 thru 6 for field wiring diagrams.

Compressors

The scroll compressors used in this product are specifically designed to operate with R-410A Refrigerant and cannot be interchanged.

Do not leave the system open to the atmosphere. Unit damage could occur due to moisture being absorbed by the POE oil in the system. This type of oil is highly susceptible to moisture absorption

POE (polyolester) compressor lubricants are known to cause long term damage to some synthetic roofing materials.

Exposure, even if immediately cleaned up, may cause embrittlement (leading to cracking) to occur in one year or more. When performing any service that may risk exposure of compressor oil to the roof, take precautions to protect roofing.

Procedures which risk oil leakage include, but are not limited to, compressor replacement, repairing refrigerant leaks, replacing refrigerant components such as filter drier, pressure switch, metering device or coil.

The unit is shipped with compressor mounting bolts which are factory adjusted and ready for operation.

Do not loosen compressor mounting bolts.

This system uses R-410A Refrigerant which operates at higher pressures than R-22. No other refrigerant may be used in this system.

The compressor also uses a polyolester (POE oil), Mobil 3MA POE. This oil is extremely hydroscopic, meaning it absorbs water readily. POE oil can absorb 15 times as much water as other oils designed for HCFC and CFC refrigerants. Take all necessary precautions to avoid exposure of the oil to the atmosphere.

Phasing

Three-phase, scroll compressors operate in only one direction. If the scroll is drawing low amperage, has similar suction and discharge pressures, or is producing a high noise level, the scroll is misphased. Change the incoming line connection phasing to obtain the proper rotation.

Scroll compressors require proper rotation to operate properly. Failure to check and correct rotation may result in property damage.

8	Johnson Controls Unitary Products

PC090 THRU 240, PD 180 THRU 240 specifications

Johnson Controls has long been a leader in the HVAC and building efficiency industry, and the Johnson Controls PC090 THRU 240 and PD 180 THRU 240 series of commercial rooftop units exemplify their commitment to innovation and energy efficiency. These units are designed to provide optimal performance for a wide range of commercial applications, ensuring comfortable indoor climates while maintaining energy savings.

One of the standout features of the Johnson Controls PC and PD series is their advanced cooling and heating capabilities. Both series can operate efficiently across a varied range of capacities, typically from 90,000 to 240,000 BTU/h for the PC series and 180,000 to 240,000 BTU/h for the PD series. This versatility allows users to select the most appropriate unit size for their specific needs, optimizing performance without wasting energy.

The technology behind these rooftop units includes advanced inverter-driven compressors that enable variable-speed operation. This feature allows for precise temperature control, resulting in enhanced comfort and reduced energy usage. The units also integrate smart controls that enable easy monitoring and management, ensuring that the HVAC system can adapt to changes in occupancy or external weather conditions.

Another notable characteristic of the Johnson Controls rooftop units is their robust construction and reliability. Designed for outdoor use, these units can withstand harsh weather conditions while maintaining operational efficiency. They are equipped with corrosion-resistant materials and protective enclosures to prolong the life of the equipment.

The units are also engineered with eco-friendliness in mind, utilizing refrigerants with low global warming potential to minimize their environmental impact. Furthermore, their energy-efficient designs often qualify for various energy incentives, providing businesses an additional return on investment.

Ease of installation and maintenance is another hallmark of the PC and PD series. With a modular design, these units can be easily transported and installed. Maintenance tasks are simplified, allowing facility management teams to perform regular service checks efficiently and effectively.

Overall, the Johnson Controls PC090 THRU 240 and PD 180 THRU 240 series stand out in the commercial HVAC market due to their flexibility, advanced technology, and dedication to energy efficiency and environmental responsibility. These units not only meet modern energy codes but also contribute to a sustainable future with their innovative features and reliable performance.

Johnson Controls PD 180 THRU 240 dimensions Phasing, Power Wiring, Control Wiring, Compressors

Models: PC090 THRU 240 PD 180 THRU 240