Ranco Ice Bank Control O18-100 User Manual

Indledning

This manual provides comprehensive instructions for the installation, operation, and maintenance of the Ranco Ice Bank Control, Model O18-100. This device is designed to accurately control ice thickness in ice bank systems by utilizing a water-filled bulb and transmission fluid.

Please read this manual thoroughly before attempting to install or operate the control to ensure proper function and safety.

Sikkerhedsoplysninger

Vigtige sikkerhedsinstruktioner:

• Always disconnect power before installing or servicing the control.
• Installationen skal udføres af en kvalificeret tekniker i overensstemmelse med alle lokale og nationale el-forskrifter.
• Do not modify the control or its components.
• Sørg for, at alle forbindelser er sikre og korrekt isolerede.
• Keep the control away from excessive moisture or corrosive environments.

Produkt overview

The Ranco Ice Bank Control O18-100 is a mechanical device designed to sense and regulate the thickness of ice in an ice bank refrigeration system. It consists of a main control unit and a capillary tube with a sensing bulb.

Figur 1: Ranco Ice Bank Control O18-100. The image displays the gray main control unit with the Ranco logo and a visible adjustment screw. Below it, a coiled copper capillary tube extends to a metallic sensing bulb.

Nøglekomponenter:

• Kontrolenhed: The main housing containing the electrical contacts and adjustment mechanism. It is gray and measures approximately 2 5/8 inches in height, 1 7/8 inches in width, and 3 1/4 inches in depth.
• Kapillærrør: A thin copper tube connecting the control unit to the sensing bulb.
• Følerpære: A water-filled bulb that detects the ice thickness. It contains transmission fluid which expands or contracts with temperature changes, transmitting pressure through the capillary tube to the control unit.
• Justeringsskrue: Located on the front of the control unit, used to set the desired ice thickness.

Specifikationer

Opsætning og installation

Proper installation is crucial for the accurate and reliable operation of the Ranco Ice Bank Control. Consult a qualified refrigeration technician for installation.

1. Strømafbrydelse: Ensure all power to the refrigeration system is disconnected at the main breaker before beginning installation.
2. Montering af styreenheden: Mount the main control unit in a location that is easily accessible for adjustment and wiring, but protected from physical damage and excessive moisture. Use appropriate fasteners for secure mounting.
3. Placering af sensorpære: The sensing bulb must be positioned within the ice bank tank where ice formation occurs. It should be submerged in the water and located at the desired ice thickness level. Ensure the capillary tube is routed carefully to avoid kinks or damage.
4. Elektriske ledninger: Connect the control unit to the refrigeration compressor's control circuit according to the wiring diagram provided with your specific refrigeration system. The Ranco O18-100 acts as a switch to cycle the compressor based on ice thickness. Refer to local electrical codes for proper wiring practices.
5. Systemtjek: After wiring, restore power and verify that the refrigeration system operates correctly.

Betjeningsvejledning

The Ranco Ice Bank Control O18-100 is designed for automatic operation once properly installed and adjusted.

1. Indledende justering: The adjustment screw on the front of the control unit allows for fine-tuning the ice thickness. Turning the screw clockwise typically increases the desired ice thickness, while turning it counter-clockwise decreases it.
2. Monitoring Ice Thickness: After initial adjustment, monitor the ice thickness in the bank over several cycles. Make small adjustments to the screw as needed until the desired ice thickness is consistently achieved.
3. Funktionsprincip: As ice forms around the sensing bulb, the water inside the bulb freezes and expands. This expansion creates pressure in the transmission fluid, which is conveyed through the capillary tube to the control unit. When the pressure reaches a preset point (corresponding to the desired ice thickness), the control unit opens a switch, stopping the compressor. As ice melts, the pressure decreases, and the control unit closes the switch, restarting the compressor to build ice again.

Opretholdelse

The Ranco Ice Bank Control O18-100 requires minimal maintenance. Regular checks can help ensure its longevity and proper function.

• Visuel inspektion: Periodically inspect the control unit, capillary tube, and sensing bulb for any signs of physical damage, corrosion, or leaks.
• Renhed: Ensure the sensing bulb is free from excessive scale or debris that could impede its ability to accurately sense ice formation. Clean gently if necessary.
• Elektriske forbindelser: Annually, or as part of routine system maintenance, verify that all electrical connections are tight and free from corrosion.

Fejlfinding

If you experience issues with your Ranco Ice Bank Control, consider the following common troubleshooting steps. For complex issues, contact a qualified technician.

Garanti og support

For warranty information or technical support regarding your Ranco Ice Bank Control O18-100, please refer to the documentation provided at the point of purchase or contact Ranco customer service directly. Keep your purchase receipt as proof of purchase.

Fabrikant: Ranco

Model: O18-100