Johnson Controls PC090 THRU 240, PD 180 THRU 240 dimensions Dual Stage Heat Pump PC120-240

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430645-YIM-D-0610

M1 while sending a signal to one of the "CFAN" terminals on DC.

•Relay RY1 controls the crankcase heater (CCH1). The normally closed contacts allow CCH1 to operate during unit shutdown.

•Contactor M1 controls compressor COMPR1.

The output signal from the remaining "CFAN" terminal on DC closes the coil of contactor M3.

• Contactor M3 controls outdoor fans ODFAN1 & 2.

After completing the specified time for fan on-delay, UCB closes the coil of relay BR1.

•Relay BR1 sends a 24V signal to G1 of terminal block TB2. It may be used to control operation of an indoor blower.

When the call for cooling (Y1) is satisfied, the UCB disables the signal to RY1, M1 and DC as long as the specified minimum run time (ASCD) has elapsed.

The UCB disables the signal to BR1 after completing the fan off-delay period.

Dual Stage Heat Pump (PC120-240)

A two stage thermostat is required to operate the heat pump in cooling mode.

The reversing valve is energized during cooling mode. A continuous 24V signal is passed through the normally closed contacts of relay RY2 to the "O" terminal of the Defrost Control Board (DC). The normally closed relay DR-2 within DC energizes the solenoid (SOL) of the reversing valve.

When the thermostat calls for first-stage cooling (Y1), the Simplicity control board (UCB) closes the coils of relay RY1 and contactor M1 while sending a signal to one of the "CFAN" terminals on DC.

•Relay RY1 has two functions. 1) control the crankcase heater CCH1, 2) control the 24V output signal to S1 on terminal block TB2.

•Contactor M1 controls compressor COMPR1.

The output signal from the remaining "CFAN" terminal on DC closes the coil of contactor M3.

• Contactor M3 controls all outdoor fans.

After completing the specified time for fan on-delay, UCB closes the coil of relay BR1.

•Relay BR1 sends a 24V signal to G1 of terminal block TB2. It may be used to control operation of an indoor blower.

When the thermostat calls for second-stage cooling (Y2), the Simplicity control board (UCB) closes the coil of relay RY2 and contactor M2.

•Relay RY2 has two functions. 1) control the crankcase heater CCH2, 2) control the 24V output signal to S2 on terminal block TB2.

•Contactor M2 controls compressor COMPR2.

If the initial call for cooling requires both stages (Y1 and Y2), the UCB will delay the second stage by 30 seconds to avoid an excessive power inrush.

When the call for cooling (Y2) is satisfied, the UCB disables the signal to RY2 and M2 as long as the specified minimum run time (ASCD) has elapsed.

When the call for cooling (Y1) is satisfied, the UCB disables the signal to RY1 and M1 as long as the specified minimum run time (ASCD) has elapsed.

Dual Stage Heat Pump - 4 pipe (PD180-240)

A two stage thermostat is required to operate the heat pump in cooling mode.

Both reversing valves are energized during cooling mode. Continuous 24V signals are passed through the normally closed contacts of relays RY2 and RY3 to the "O" terminals of their respective Defrost Control Boards (DC1 and DC2). The normally closed relays DR-2 within DC1 and DC2 energize the solenoids (SOL1 and SOL2) of the reversing valves.

When the thermostat calls for first-stage cooling (Y1), the Simplicity control board (UCB) closes the coils of relay RY1 and contactor M1 while sending a signal to one of the "CFAN" terminals on DC1.

•Relay RY1 has two functions. 1) control the crankcase heater CCH1, 2) control the 24V output signal to S1 on terminal block TB2.

•Contactor M1 controls compressor COMPR1.

The output signal from the remaining "CFAN" terminal on DC1 closes the coil of contactor M3.

• Contactor M3 controls outdoor fans ODFAN1 & 2.

After completing the specified time for fan on-delay, UCB closes the coil of relay BR1.

•Relay BR1 sends a 24V signal to G1 of terminal block TB2. It may be used to control operation of an indoor blower.

When the thermostat calls for second-stage cooling (Y2), the Simplicity control board (UCB) closes the coils of relay RY2 and contactor M2 while sending a signal to one of the "CFAN" terminals on DC2.

•Relay RY2 has two functions. 1) control the crankcase heater CCH2, 2) control the 24V output signal to S2 on terminal block TB2.

•Contactor M2 controls compressor COMPR2.

The output signal from the remaining "CFAN" terminal on DC2 closes the coil of contactor M4.

Johnson Controls Unitary Products

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Contents 410A General NomenclatureInspection Safety ConsiderationsRenewal Parts Agency ApprovalsPC090 240 and PD180 240 Physical Data Physical DataLimitations InstallationLocation Shipping Operating Corner Weights & Center of GravityRigging ClearancesMinimum Clearances Clearance Description Distance in Inches Compressors Power WiringControl Wiring PhasingFLA Electrical DataRefrigerant Mains Take Adequate PrecautionsLine Sizing Start Installation Thermostat Single Stage Cooling TWO Stage Heating NC120 240 Liquid Line Solenoid Wiring YIM-D-0610 Model Model Piping And Electrical Connections Start-UpCrankcase Heaters Sequence of Operation OperationCooling Sequence Of Operation Dual Stage Heat Pump 4 pipe PD180-240 Dual Stage Heat Pump PC120-240Heating Sequence of Operation Fan Orientation, Control Box End Defrost OperationUnit Control Board PD180 thru 240 Unit Control Board Flash CodesNormal Maintenance TroubleshootingUnit Control Board Option Setup Option Byte SetupCooling 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 PC090 Heat Pump Wiring Diagram Typical Wiring DiagramsTypical 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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