Johnson Controls PD 180 THRU 240, PC090 THRU 240 dimensions Johnson Controls Unitary Products

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HPS1 and LPS1 terminals of the UCB. If a switch has opened, there should be a voltage potential between the UCB terminals, e.g. if LPS1 has opened, there will be a 24- volt potential between the LPS1 terminals.

9.If 24 volts is present at the UCB Y1 terminal and none of the protection switches have opened, the UCB may have locked out the compressor for repeat trips. The UCB should be flashing a code. If not, press and release the ALARMS button on the UCB. The UCB will flash the last five alarms on the LED. If the compressor is locked out, remove any call for cooling. This will reset any compressor lock outs.

NOTE: While the above step will reset any lock outs, compressor #2 will be held off for the ASCD, and compressor #1 may be held off for a portion of the ASCD. See the next step.

10.If 24 volts is present at the UCB Y1 terminal and none of the switches are open and the compressor is not locked out, the UCB may have the compressor in an ASCD.

Check the LED for an indication of an ASCD cycle. The

ASCD should time out within 5 minutes. Press and release the TEST button to reset all ASCDs.

11.If 24 volts is present at the UCB Y1 terminal and the compressor is not out due to a protective switch trip, repeat trip lock out, or ASCD, the economizer terminals of the UCB may be improperly wired. Check for 24 volts at the Y1 “OUT” terminal of the UCB. If 24 volts is not present at the Y1 “OUT” terminal, the UCB must be replaced.

12.If 24 volts is present at the Y1 “OUT” terminal, check for 24 volts at the Y1 “ECON” terminal. If 24 volts is not present, check for loose wiring from the Y1 “OUT” terminal to the Mate-N-Lock plug, the jumper in the Mate-N-Lock plug, and in the wiring from the Mate-N-Lock plug to the Y1 “ECON” terminal.

13.If none of the above corrected the error, test the integrity of the UCB. Disconnect the C1 terminal wire and jumper it to the Y1 terminal. DO NOT jump the Y1 to C1 terminals. If the compressor engages, the UCB has faulted.

14.If none of the above correct the error, replace the UCB.

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Contents 410A Nomenclature GeneralAgency Approvals Safety ConsiderationsRenewal Parts InspectionPhysical Data PC090 240 and PD180 240 Physical DataLocation InstallationLimitations Corner Weights & Center of Gravity Shipping OperatingMinimum Clearances Clearance Description Distance in Inches ClearancesRigging Phasing Power WiringControl Wiring CompressorsElectrical Data FLALine Sizing Take Adequate PrecautionsRefrigerant Mains Start Installation Thermostat Single Stage Cooling TWO Stage Heating NC120 240 Liquid Line Solenoid Wiring YIM-D-0610 Model Model Crankcase Heaters Start-UpPiping And Electrical Connections Cooling Sequence Of Operation OperationSequence of Operation Dual Stage Heat Pump PC120-240 Dual Stage Heat Pump 4 pipe PD180-240Heating Sequence of Operation Defrost Operation Fan Orientation, Control Box EndPD180 thru 240 Unit Control Board Flash Codes Unit Control BoardOption Byte Setup TroubleshootingUnit Control Board Option Setup Normal MaintenanceCooling Troubleshooting Guide If none of the above correct the error, replace the UCB Johnson Controls Unitary Products Cooling Charging Curves Cooling Charging Curves PC240 Typical Wiring Diagrams Typical PC090 Heat Pump Wiring DiagramTypical PC120 Heat Pump Wiring Diagram Typical PC180 240 Heat Pump Wiring Diagram Johnson Controls Unitary Products York Drive Norman, OK

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.
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