Thermo King 45-2517 Controller Board 111744B LC CSR C150 C250 C350 OEM
Data Processing Order: 2-5 Days
USED
he Thermo King 45-2517 is an original OEM main controller board (PCB) designed for Thermo King CSR series refrigeration units, including C150, C250, and C350 models.
This board functions as the primary system control module, managing refrigeration logic, compressor operation, fan control, sensor inputs, and diagnostic communication.
In addition to the official Thermo King part number, the PCB carries the internal board marking:
111744B LC
(Internal PCB assembly number, Revision B)
This marking is used for manufacturing identification and hardware revision tracking and is important for accurate replacement matching.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Thermo King |
| OEM Part Number | 45-2517 |
| Internal PCB Number | 111744B LC |
| Revision | Rev. B (board marking) |
| Device Type | Main Controller Board / PCB |
| Series | CSR |
| Compatible Models | C150 / C250 / C350 |
| Application | Transport Refrigeration Systems |
| Mounting | Internal unit installation |
| OEM | Yes |
Function Overview
The controller board manages:
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Compressor control
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Evaporator and condenser fan operation
-
Temperature sensor signal processing
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Defrost cycle management
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System diagnostics and alarm logic
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Communication with HMI panel (e.g., Thermo King 45-2516)
Compatibility Note
For correct replacement, verify:
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OEM Part Number: 45-2517
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Internal PCB marking: 111744B LC
-
Compatibility with CSR C150 / C250 / C350 units
Matching both numbers ensures proper firmware and hardware revision compatibility.
Typical Applications
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Refrigerated trucks
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Trailer refrigeration systems
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Thermo King CSR transport cooling units