Supco OL1 Solid State Overload Instruction Manual

1. Product Overview

The Supco OL1 Solid State Overload is a reliable motor protector designed as a direct replacement for various original equipment manufacturer (OEM) parts. This unit is engineered to safeguard motors from excessive current, preventing damage due to overload conditions.

It is specifically designed for use with IC series, PO series, and UR115 components, ensuring compatibility and seamless integration into existing systems.

Figure 1: Supco OL1 Solid State Overload. This image shows the compact black rectangular device with two metal terminals, indicating its robust construction for electrical applications.

2. Safety Information

WARNING: Risk of Electric Shock. Always disconnect power before installing or servicing this device.

• Installation and servicing should only be performed by qualified personnel.
• Ensure all local and national electrical codes are followed during installation.
• Do not operate the device if it appears damaged.
• Wear appropriate personal protective equipment (PPE), including safety glasses and insulated gloves, when working with electrical components.

3. Setup and Installation

The Supco OL1 is designed for direct replacement. Follow the specific wiring diagrams and instructions provided by the equipment manufacturer for the component you are replacing.

1. Power Disconnection: Before beginning any installation, ensure that the main power supply to the equipment is completely disconnected and locked out. Verify with a voltage tester.
2. Identify Existing Overload: Locate the existing overload device that needs replacement. Note its orientation and wiring connections.
3. Remove Old Unit: Carefully disconnect the wires from the old overload and remove it from its mounting.
4. Install New Unit: Mount the Supco OL1 Solid State Overload in the same position as the old unit.
5. Wire Connections: Connect the electrical wires to the terminals of the OL1, ensuring secure and correct polarity as per the equipment's wiring diagram. Refer to the equipment's service manual for detailed wiring instructions.
6. Secure Connections: Double-check all connections for tightness and proper insulation.
7. Restore Power: Once installation is complete and verified, restore power to the equipment.

Note: This device is a direct replacement. Consult the original equipment's service manual for specific installation procedures and wiring diagrams.

4. Operating Instructions

The Supco OL1 Solid State Overload operates automatically to protect the motor. It continuously monitors the current drawn by the motor. If the current exceeds a safe threshold for a prolonged period, indicating an overload condition, the device will interrupt the circuit to prevent motor damage.

Once the overload condition is resolved and the device has cooled (if applicable), it will typically reset automatically or allow for a manual reset depending on the specific system it is integrated into. Refer to your equipment's operational manual for details on how the overload interacts with your system's control logic.

5. Maintenance

The Supco OL1 Solid State Overload is a low-maintenance component. Regular maintenance involves:

• Visual Inspection: Periodically inspect the device and its connections for any signs of physical damage, corrosion, or loose wiring.
• Cleanliness: Ensure the area around the overload is free from dust, dirt, and debris, which can impede heat dissipation.
• Connection Integrity: Verify that all electrical connections remain tight and secure.

No internal user-serviceable parts are present. Do not attempt to open or repair the unit.

6. Troubleshooting

If the motor protected by the OL1 overload is not operating, consider the following troubleshooting steps:

• No Power: Ensure that the main power supply to the equipment is active.
• Overload Tripped: If the motor stopped unexpectedly, the overload may have tripped. Identify and resolve the cause of the overload (e.g., seized motor, excessive load, low voltage). Allow time for the overload to reset if it's an automatic reset type, or manually reset if applicable to your system.
• Loose Connections: Check all wiring connections to the OL1 for tightness and proper contact.
• Device Damage: Visually inspect the OL1 for any signs of burning, melting, or physical damage. If damaged, replace the unit.
• Motor Fault: If the overload continues to trip, the motor itself may have an internal fault. Consult a qualified technician to diagnose the motor.

If the issue persists after performing these checks, contact a qualified electrician or HVAC technician for further assistance.

7. Specifications

8. Warranty and Support

For warranty information and technical support regarding the Supco OL1 Solid State Overload, please refer to the documentation provided with your purchase or contact Supco directly through their official website or customer service channels.

Warranty terms and conditions may vary based on the region and point of purchase. Keep your proof of purchase for any warranty claims.