Description
The Johnson Controls UniSAB III 4209-001 0001 Controller is an integrated industrial refrigeration control unit designed for Sabroe refrigeration compressors, chillers, and heat pump systems. It provides centralized monitoring, control, communication, and diagnostic functions for refrigeration installations.
The UniSAB III controller combines PLC-based control functions, operator interface capability, data monitoring, alarm management, and communication interfaces in a compact industrial controller platform. It is widely used in marine refrigeration plants, industrial cooling systems, food processing facilities, and large-scale HVAC refrigeration applications.
The 4209-001 0001 controller is commonly supplied as a replacement spare for existing UniSAB III installations, helping maintain compressor sequencing, capacity control, operating parameter monitoring, and system diagnostics.
4209-001 0001
📌 Product Parameters
| Parameter | Description |
|---|---|
| Brand | Johnson Controls |
| Model | 4209-001 0001 |
| Series | UniSAB III |
| Product Name | Industrial Refrigeration Controller |
| Origin / Place of Origin | Denmark |
| Product Status | Used Tested / Industrial Spare Replacement |
| Dimensions | Approx. Compact Panel Mount Controller Size |
| Weight | Approx. 2–3 kg |
| Power Supply | 24V DC Control Power |
| Discontinued | Legacy Controller Series, replaced by newer UniSAB 4 systems |
📌 Product Datasheet
| Parameter | Description |
|---|---|
| Controller Type | Integrated Refrigeration Control Unit |
| Application | Compressor, Chiller and Heat Pump Control |
| System Platform | Sabroe UniSAB III |
| Manufacturer | Johnson Controls / Sabroe |
| Control Function | Monitoring, regulation, sequencing and diagnostics |
| Communication | Industrial communication interfaces including Modbus options |
| Display Interface | Operator display connection |
| Input / Output | Configurable analog and digital I/O |
| Installation | Refrigeration control panel mounting |
| Main Function | Complete refrigeration plant management |
📌 Common Questions & Answers
❓ Q: What is the main function of the Johnson Controls 4209-001 0001 controller?
A: It manages refrigeration compressor operation, system monitoring, alarms, diagnostics, and communication functions within UniSAB III systems.
❓ Q: Which equipment uses the UniSAB III controller?
A: It is mainly used with Sabroe refrigeration compressors, compressor packages, chillers, and industrial cooling systems.
❓ Q: What problems may occur when this controller fails?
A: Possible symptoms include compressor control failure, communication alarms, incorrect operating parameters, display faults, or loss of system monitoring.
❓ Q: Can the 4209-001 0001 directly replace all UniSAB III controllers?
A: Replacement depends on controller revision, software configuration, I/O setup, and the specific refrigeration installation.
❓ Q: What should be checked before installation?
A: Confirm the controller part number, firmware version, wiring connections, I/O configuration, and system parameters before commissioning.
❓ Q: Is UniSAB III still used in existing installations?
A: Yes. Many existing refrigeration systems continue using UniSAB III controllers, while newer systems may use UniSAB 4 upgrade solutions.
📌 Recommended Johnson Controls / Sabroe Models
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