If you are managing multiple units, the Eliwell manual will mention the accessory. This allows you to program one SB655/C and "copy-paste" those settings to every other controller in your facility, ensuring consistency and saving hours of manual entry. Final Thoughts
Do not exceed the maximum load capacity of the relays. For heavy loads, use external contactors. 4.2. Thyristor Output Configuration
For optimal cooling efficiency and system longevity, pay close attention to these vital parameters:
To get the most out of your controller and avoid common pitfalls, keep these tips in mind.
Reserved strictly for OEMs to specify unit limits, sensor curves, and multi-stage compressor timing profiles. Network & Communications Setup eliwell sb655 c manual best
Tap the key briefly; the SEt folder or label appears on the primary screen.
The is a powerful tool, but its effectiveness depends entirely on correct installation and configuration. Utilizing the official documentation is the best way to leverage its advanced capabilities, such as adaptive cooling and dual-circuit management.
Multiple relay outputs for compressor, defrost, and fans. Mounting: Panel-mounted (32x74mm standard). 2. Wiring Diagram and Installation
The SB655C controller is designed for energy flexibility. Through careful use of inputs and configuration, you can implement , where the system reduces its power consumption when an external signal (like a utility peak pricing signal) is received. Economy modes can also be configured to run the system at different setpoints based on occupancy or time of day, as managed via the digital inputs. If you are managing multiple units, the Eliwell
Disclaimer: Always refer to the official Eliwell (now part of Schneider Electric) documentation for specific electrical safety codes. This guide is for informational purposes based on standard SB655 C configurations.
The standard security code is . Use the arrow keys to enter it, then press SET. Manual Reset
The accuracy of your SB655/C depends on the probe placement. Use the button to define your target temperature. If you notice a discrepancy between the display and an independent thermometer, look for the calibration parameter (usually CA1 ) to apply an offset. 2. Defrost Management
Ensure the probe cables are separated from power lines to avoid interference. For heavy loads, use external contactors
By carefully following the installation wiring diagrams, correctly setting the parameters based on your specific application, and using this guide as a companion to the official technical datasheets, you can effectively transform the SB655C into the central brain of a highly efficient, reliable, and professional HVAC system.
Ensure the electrical load of your compressor, defrost elements, and fans does not exceed the maximum amperage rating of the individual onboard relays. Use external contactors for heavy three-phase loads. Navigation and Parameter Programming
Includes an adaptive function optimized for water chillers that lack an expansion/storage tank.
Insert the controller into a standard panel cutout, securing it with the provided click-on plastic brackets. Ensure the gasket is seated tightly to maintain its IP65 front-panel moisture rating.
Go to: www.se.com (Schneider Electric owns Eliwell) Search for "SB 655 C" in the search bar. Look under "Downloads" → "User manual" or "Technical documentation" . The file will be a complete PDF, often named like ELIWELL_SB655C_ENG.pdf .
The SB655/C features thyristor outputs (TC1 and TC2). The manual instructs that these outputs are activated by a control pulse in each half-wave, requiring proper setup to manage speed-controlled fans or pumps accurately. 4.3. Parameter Settings (The "Best" Configuration)