1. Introduction
This instruction manual provides essential information for the proper installation, operation, and maintenance of the Master-Bilt Bit-25 Lae Controller, model 19-14605-IHC27. This component is a genuine OEM replacement part designed for specific Master-Bilt equipment. Adhering to these instructions will help ensure the longevity and correct functionality of the controller and the equipment it serves.
2. Safety Information
WARNING: Electrical components should only be handled and installed by qualified personnel. Failure to follow these safety guidelines may result in electric shock, injury, or damage to the equipment.
- Always disconnect power to the equipment before installing, servicing, or removing the controller.
- Ensure all wiring connections comply with local and national electrical codes.
- Verify the voltage and current ratings of the controller match the equipment's requirements.
- Do not operate the controller if it appears damaged.
- Keep the controller dry and away from excessive moisture or corrosive environments.
3. Package Contents
Upon opening the package, verify that the following item is present:
- Master-Bilt Bit-25 Lae Controller (Model: 19-14605-IHC27)
4. Product Overview
The Master-Bilt Bit-25 Lae Controller is an integral electronic component designed to manage and regulate specific functions within compatible Master-Bilt refrigeration or industrial equipment. It features various terminals for power input, sensor connections, and output controls.
Figure 4.1: Front view of the Master-Bilt Bit-25 Lae Controller. This image displays the main body of the controller, including the product label which details the model number, electrical specifications (120V-23), and various terminal designations for connection points such as T1, T2, DI1, DI2, AUX, and LIVE/NEUTRAL inputs. The 'Made in Italy' origin is also visible.
Figure 4.2: Top-down view of the controller. This perspective highlights the various terminal blocks and connectors on the circuit board, including a red connector and multiple screw terminals, which are used for wiring the controller into the equipment's electrical system. The main label is also visible from this angle.
Figure 4.3: Side view of the controller. This image shows the robust plastic casing and the integrated mounting tabs on the sides, designed for secure installation within an equipment panel or enclosure. The compact form factor of the unit is evident.
5. Installation and Setup
Installation of the Master-Bilt Bit-25 Lae Controller should only be performed by a certified technician or qualified electrician. Refer to the specific wiring diagrams and service manuals for your Master-Bilt equipment for detailed installation instructions.
- Power Disconnection: Ensure all power to the equipment is disconnected at the main breaker before beginning installation.
- Access: Open the equipment's control panel or access compartment to locate the existing controller or mounting location.
- Removal (if replacing): Carefully disconnect all wires from the old controller, noting their positions and labels. Remove the old controller from its mounting.
- Mounting: Secure the new Master-Bilt 19-14605-IHC27 controller in the designated location using appropriate fasteners.
- Wiring: Connect all wires to the corresponding terminals on the new controller. Refer to the wiring diagram provided with your equipment. Pay close attention to Live (L), Neutral (N), Auxiliary (AUX), and sensor (T1, T2) connections.
- Verification: Double-check all connections for tightness and correct placement. Ensure no bare wires are exposed.
- Power Restoration: Close the equipment's access panel. Restore power to the equipment.
6. Operating Instructions
The Master-Bilt Bit-25 Lae Controller functions as a control module within a larger system. Its operation is typically integrated with the equipment's main control panel or display. Specific operational parameters and settings are usually configured through the equipment's user interface, not directly on the controller itself.
- Initial Power-Up: After installation and power restoration, the controller should initialize automatically. Observe the equipment's main display for any error codes or operational indicators.
- System Integration: The controller receives input from sensors (e.g., temperature probes) and sends commands to actuators (e.g., compressors, fans) based on programmed setpoints and logic.
- Parameter Adjustment: Any adjustments to operational parameters (e.g., temperature setpoints, defrost cycles) should be made via the equipment's primary control interface, following the equipment's specific user manual.
- Monitoring: Regularly monitor the equipment's performance and any associated display readings to ensure the controller is functioning correctly.
7. Maintenance
The Master-Bilt Bit-25 Lae Controller is designed for reliable operation with minimal maintenance. However, periodic checks can help ensure its continued performance.
- Visual Inspection: Periodically inspect the controller and its wiring for any signs of damage, corrosion, or loose connections. Ensure the casing is intact.
- Cleaning: If necessary, gently clean the exterior of the controller with a dry, soft cloth. Do not use liquid cleaners or solvents, as these can damage the electronic components.
- Environmental Conditions: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent premature failure.
8. Troubleshooting
If the equipment is not functioning as expected, consider the following basic troubleshooting steps. For complex issues, consult a qualified service technician.
- No Power: Check the main power supply to the equipment and ensure all circuit breakers are on. Verify that the controller's power input terminals are correctly wired and receiving the specified voltage.
- Incorrect Readings/Operation: Ensure all sensor connections (T1, T2) are secure and that the sensors themselves are functioning correctly. Refer to the equipment's manual for sensor testing procedures.
- Error Codes: If the equipment's main display shows an error code, consult the equipment's specific service manual for the meaning of the code and recommended corrective actions.
- Loose Connections: Power down the equipment and carefully check all wiring connections to the controller for tightness.
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | 19-14605-IHC27 |
| Brand | Master-Bilt |
| Part Type | Bit-25 Lae Controller |
| Voltage | 120V-23 (as per product description) |
| Product Dimensions | 4.2 x 6 x 5 inches |
| Item Weight | 5.28 ounces |
| Manufacturer | Master-Bilt |
10. Warranty and Support
As a genuine OEM replacement part, the Master-Bilt Bit-25 Lae Controller is manufactured to high-quality standards. Specific warranty terms are typically provided by Master-Bilt or the authorized distributor at the time of purchase. Please retain your proof of purchase for warranty claims.
For technical support, service, or warranty inquiries, please contact Master-Bilt customer service or your authorized Master-Bilt service provider. Refer to the documentation provided with your Master-Bilt equipment for contact information.