Ingersoll Rand 22110423 Microcontroller Processor Module Rev.A

Ingersoll Rand 22110423 Microcontroller Processor Module Rev.A

The Ingersoll Rand 22110423 Microcontroller Processor Module (Label Assembly 22254353 Rev.A) is an OEM base control processing unit engineered by the Ingersoll Rand Air Solutions Group. Built to govern multi-stage centrifugal and heavy-duty rotary air compressors, this processor executes real-time anti-surge algorithms, load/unload modulation, motor current monitoring, and safety shutdown interlocks.

The 22110423 features a ruggedized industrial printed circuit board assembly (PCBA) with isolated analog/digital I/O banks, onboard fast-acting fuse protection, and direct current transformer (CT) sensing. It mounts inside the main compressor control cabinet and communicates with the operator HMI panel (such as the 22110399 User Terminal) to maintain discharge pressure stability under fluctuating plant or marine engine-room demand.

Model Details

• Primary OEM Part Number (MPN): 22110423
• PCB / Label Assembly Identification: 22254353 Rev.A
• Hardware Revision: Rev. E (Chassis / Main Board Architecture)
• Firmware / Boot Revision: Boot Rev. 3.10 / 3.30 (Application firmware loaded per compressor pressure/stage configuration)
• UL File Recognition: UL Recognized Component File E180892
• Net Module Weight: 2.03 kg – 2.06 kg

Features

1. Integrated 0–5A AC Current Sensing: Accepts direct secondary inputs from main drive motor current transformers, eliminating external signal conditioners while enabling real-time surge and overload protection.
2. High-Resolution 4–20mA Closed-Loop Control: Processes multi-point analog pressure and temperature telemetry to modulate inlet guide vanes and blow-off valves with tight pressure-band accuracy.
3. Pilot-Duty 120V AC Relay Switching: Equipped with 125 VA isolated digital outputs capable of directly driving compressor solenoid valves and starter interposing relays.
4. Dedicated Bus Fuse Protection (F100–F103): Incorporates four accessible GMA 1.5A fuses on the PCB to isolate field wiring faults and prevent catastrophic board trace failure.
5. 70°C High-Ambient Industrial Rating: Engineered with industrial-grade components validated up to 70°C operating temperatures for continuous 24/7 duty inside uncooled control enclosures.

Compatibility

• Ingersoll Rand Centac Centrifugal Compressors: CMC (Centac Microcontroller) and C-Series multi-stage centrifugal air compressors.
• Ingersoll Rand Rotary Screw Air Compressors: High-horsepower contact-cooled and oil-free rotary screw units (200–300 kW SL, SM, SH, and VSD series control architectures) utilizing base control assembly 22110423.
• Compatible Operator Interfaces & Companion Modules:
• 22110399: Ingersoll Rand Compressor Controller User Terminal / Keypad & LCD Display
• 22110415: Ingersoll Rand Universal Communication Module (UCM)

Part Number Cross-References

• 22110423: Primary Ingersoll Rand Spare Part / Base Control Assembly Number
• 22254353 Rev.A: Factory PCB / Module Identification Label Number
• 22095442 Rev.B: Associated Sub-Board / Hardware Assembly Number
• 3656831-G02 / IR601: Processor Terminal / Relay I/O Sub-Board Reference
• 85710960: Cross-referenced Ingersoll Rand Controller Assembly Model Number

Frequently Asked Questions

What is the difference between part number 22110423 and 22254353 Rev.A?

Part number 22110423 is the official Ingersoll Rand spare part ordering number for the complete base microcontroller processor assembly, while 22254353 Rev.A is the assembly identification number printed directly on the circuit board label. Both numbers refer to the exact same hardware module.

Does the Ingersoll Rand 22110423 module require firmware programming before installation?

Yes. While the hardware board is identical across compatible Centac and rotary screw models, the non-volatile memory must hold the correct firmware and pressure calibration parameters for your specific compressor model. If you are replacing an existing board, you must either transfer the parameter set via the user terminal or verify the firmware revision matches your compressor’s serial number.

What fuse rating is used on the Ingersoll Rand 22110423 processor board?

The board utilizes four GMA 1.5A (fast-acting 5x20mm glass) fuses designated as F100, F101, F102, and F103 to protect its 120V AC pilot output and internal power distribution circuits. Always replace blown fuses with exact 1.5A fast-blow equivalents after isolating the field short.

Can the 22110423 module operate without the 22110399 User Terminal connected?

Once configured and running in automatic mode, the 22110423 base processor executes all closed-loop control, surge protection, and safety shutdown routines independently. However, the 22110399 User Terminal (or compatible HMI) is required for local parameter adjustments, alarm resets, and commissioning.

What power supply is needed for the Ingersoll Rand 22110423?

The module requires a regulated 24V DC power input rated for at least 2.0A, alongside a separate 120V AC control circuit supply if the 125 VA pilot-duty digital outputs are utilized to drive external solenoid valves and motor starter relays.