If you just need to change the target temperature (Setpoint 1), you don't need the full menu: Press and release the button. When SEt appears, press SET again to see the current value. Adjust with the arrows and press SET to confirm. Common Alarms & Error Codes
Wire the compressor, defrost heaters, and evaporator fans to their respective dry contact relay outputs, ensuring current draws do not exceed maximum rated limits. 3. Front Panel Interface and Displays
At the hospital that night, the cooler’s display blinked 3.9°C—safe enough, but an alarm history showed a cluster of brief excursions to 7°C between 2 and 3 a.m. The compressor cycles were unusually short. Marco traced the sensor cable: the insulation was brittle where it bent behind a panel. A hairline break caused intermittent contact when vibration from the nearby corridor trolley resonated through the rack. The controller, following its settings, treated each brief loss of accurate temperature input as a rapid warm-up and repeatedly started the compressor, then stopped it again—short cycles that stressed the system and allowed real temperature drift between readings.
communication protocols for remote monitoring and management. Seasonal Adaptation : Features automatic summer-winter changeover. Electric Automation Network Navigation and Troubleshooting eliwell sb655 c manual
In the world of commercial refrigeration, precision and reliability are paramount. The Eliwell SB655C is a ubiquitous controller found in display cases, cold rooms, and beverage coolers worldwide. Known for its versatility, this microprocessor-based controller manages temperature and defrost cycles with high accuracy.
The Eliwell SB655/C features an industry-standard 32x74mm front panel profile, engineered for direct panel-cutout integration. Mechanical & Environmental Characteristics : IP65 ingress protection rating.
is built for DIN rail mounting and offers a high degree of flexibility for HVAC systems. : 12–24V~ or 24Vdc. If you just need to change the target
Always disconnect the main power supply before servicing any electrical terminals on the back of the controller housing.
Multiple analog and digital inputs, including probes for temperature measurement Installation Tips
: Standard 71x29 mm panel punch-out (+0.2/-0.1 mm tolerance). Electrical Profiles Power Supply : 12–24V~ (AC) or 12–24V~/24Vc (DC). Common Alarms & Error Codes Wire the compressor,
When PA2 appears, press SET twice more, then use the arrow buttons to enter the security code (factory default is often 22 ) and press SET to confirm.
Usually indicates a probe failure or configuration error. Ensure the H00 parameter correctly matches your probe type (e.g., 0 for PTC or 1 for NTC). EA: External alarm triggered by a digital input. Downloads and Resources
The controller is available in three physical formats (SB, SD, SC) which have the same control logic but a different chassis. The SB655C version has a compact 32x74x80 mm format.