Press and release the key. The current setpoint value will flash.
: Supports Free Cooling/Heating, power limitation to avoid overloads, and adaptive functions for chillers without storage tanks.
: Shows standard operating values like current temperature.
The is a high-performance electronic controller designed primarily for commercial refrigeration, cold storage, and HVAC applications. Known for its reliability and precise temperature regulation, this device manages compressors, defrost cycles, and evaporator fans to ensure optimal climate control. eliwell sb655 c manual
communication protocols for remote monitoring and management. Seasonal Adaptation : Features automatic summer-winter changeover. Electric Automation Network Navigation and Troubleshooting
Before installing or replacing an Eliwell SB655 C unit, verify that the electrical specifications of your system match the controller's limitations. 230Vac , 50/60Hz (Alternative 12Vac/dc models exist) Power Consumption: 3 VA maximum Display: 3-digit LED with sign (minus) and status icons Inputs: Up to 2 NTC or PTC probes (thermostat and defrost) Digital Inputs: 1 configurable voltage-free contact Relay Outputs: Compressor: SPST 8A or 16A (depending on sub-model variant) Defrost: SPDT 8A Evaporator Fans: SPST 8A Front Protection: IP65 water and dust resistance Dimensions: Front panel 74x32 mm, depth 60 mm Mounting: Panel cutout of 71x29 mm with click-in brackets Wiring Diagram and Electrical Installation
: An adaptive regulation function balances fluid temperatures in chillers working without an external buffer or water storage tank, preventing short-cycling. Wiring and Connection Architecture Press and release the key
| Code | Parameter Name | Description | Typical Range | Recommended Setting | | :--- | :--- | :--- | :--- | :--- | | | Setpoint | Desired controlled temperature | LS to US | 2.0°C (cooler) / -18.0°C (freezer) | | Hy | Hysteresis | Differential (cut-in – cut-out). Compressor starts at SP+Hy, stops at SP. | 0.1 to 25.0°C | 2.0°C (reduces cycling) | | LS | Minimum Setpoint | Lower limit to lock SP | -50 to US | -30°C (freezer) / 0°C (cooler) | | US | Maximum Setpoint | Upper limit to lock SP | LS to 150°C | 8.0°C (cooler) / 0°C (freezer) | | OdO | On Delay Output | Delay before energizing output after power-up | 0 to 250 min | 2 min (protects compressor) | | dLy | Delay | Minimum off time for compressor | 0 to 60 min | 5 min (crucial for compressor life) | | PA | Password | Access code for parameter menu | 0 to 199 | 3 (default) | | C_F | Temperature Scale | Celsius or Fahrenheit | C / F | C (or F for USA) | | S1P | Probe 1 Type | Type of temperature probe | PtC / ntC | ntC (usually for NTC 10k) or PtC |
Note: Additional parameters for defrost (if using an external SSR/relay) and digital inputs exist but are rare on the base SB655 C model.
The Eliwell SB655 C separates user settings from installer configurations using a password-protected menu layer. How to Modify the Temperature Setpoint : Shows standard operating values like current temperature
Press and hold the key for more than 5 seconds until PA1 flashes on the screen.
This guide offers a solid foundation for using the Eliwell SB655C. However, for any installation, parameter changes, or complex troubleshooting, always refer to the official full manual and consult with a qualified HVAC professional.
Press and release the key. The current setpoint value will flash.
: Supports Free Cooling/Heating, power limitation to avoid overloads, and adaptive functions for chillers without storage tanks.
: Shows standard operating values like current temperature.
The is a high-performance electronic controller designed primarily for commercial refrigeration, cold storage, and HVAC applications. Known for its reliability and precise temperature regulation, this device manages compressors, defrost cycles, and evaporator fans to ensure optimal climate control.
communication protocols for remote monitoring and management. Seasonal Adaptation : Features automatic summer-winter changeover. Electric Automation Network Navigation and Troubleshooting
Before installing or replacing an Eliwell SB655 C unit, verify that the electrical specifications of your system match the controller's limitations. 230Vac , 50/60Hz (Alternative 12Vac/dc models exist) Power Consumption: 3 VA maximum Display: 3-digit LED with sign (minus) and status icons Inputs: Up to 2 NTC or PTC probes (thermostat and defrost) Digital Inputs: 1 configurable voltage-free contact Relay Outputs: Compressor: SPST 8A or 16A (depending on sub-model variant) Defrost: SPDT 8A Evaporator Fans: SPST 8A Front Protection: IP65 water and dust resistance Dimensions: Front panel 74x32 mm, depth 60 mm Mounting: Panel cutout of 71x29 mm with click-in brackets Wiring Diagram and Electrical Installation
: An adaptive regulation function balances fluid temperatures in chillers working without an external buffer or water storage tank, preventing short-cycling. Wiring and Connection Architecture
| Code | Parameter Name | Description | Typical Range | Recommended Setting | | :--- | :--- | :--- | :--- | :--- | | | Setpoint | Desired controlled temperature | LS to US | 2.0°C (cooler) / -18.0°C (freezer) | | Hy | Hysteresis | Differential (cut-in – cut-out). Compressor starts at SP+Hy, stops at SP. | 0.1 to 25.0°C | 2.0°C (reduces cycling) | | LS | Minimum Setpoint | Lower limit to lock SP | -50 to US | -30°C (freezer) / 0°C (cooler) | | US | Maximum Setpoint | Upper limit to lock SP | LS to 150°C | 8.0°C (cooler) / 0°C (freezer) | | OdO | On Delay Output | Delay before energizing output after power-up | 0 to 250 min | 2 min (protects compressor) | | dLy | Delay | Minimum off time for compressor | 0 to 60 min | 5 min (crucial for compressor life) | | PA | Password | Access code for parameter menu | 0 to 199 | 3 (default) | | C_F | Temperature Scale | Celsius or Fahrenheit | C / F | C (or F for USA) | | S1P | Probe 1 Type | Type of temperature probe | PtC / ntC | ntC (usually for NTC 10k) or PtC |
Note: Additional parameters for defrost (if using an external SSR/relay) and digital inputs exist but are rare on the base SB655 C model.
The Eliwell SB655 C separates user settings from installer configurations using a password-protected menu layer. How to Modify the Temperature Setpoint
Press and hold the key for more than 5 seconds until PA1 flashes on the screen.
This guide offers a solid foundation for using the Eliwell SB655C. However, for any installation, parameter changes, or complex troubleshooting, always refer to the official full manual and consult with a qualified HVAC professional.