Eliwell Sb655 | C Manual

DIN rail mounting designed for centralized unit control with Modbus communication.

If you are searching for the , you likely have a refrigeration or HVAC control panel in front of you that needs programming, troubleshooting, or an electrical connection check. The Eliwell SB655 C is a classic, highly reliable digital temperature controller widely used in commercial refrigeration, cold rooms, industrial freezers, and HVAC systems. However, without the manual, navigating its parameters and terminal blocks can be daunting.

Digital Output Configuration. Values typically range from -53 to 53 for specific digital output configurations. 3. User Interface & Menu Navigation

While this guide covers 95% of typical scenarios, you should keep the original manufacturer’s manual on hand. Official PDFs are available from:

Carefully follow the connection diagrams provided on the instrument label. Incorrect wiring of loads can damage the controller. 2. Configuration Parameters eliwell sb655 c manual

Ensure the cooling slots remain unobstructed and avoid mounting in high-moisture or excessively dirty areas.

This comprehensive article serves as an extended manual. We will cover everything from hardware overviews and wiring, to programming parameters, common error codes, and where to find the official PDF manual.

Fix: Inspect the sensor wiring. If Pb2 is not required for your system configuration, disable the evaporator probe parameter in the input settings menu to eliminate the alarm.

: Official source for instruction sheets and software manager files. or trying to configure a particular operating mode DIN rail mounting designed for centralized unit control

The defrost sensor is broken. Defrost cycles will terminate purely on time ( dEt ) rather than temperature.

The is a base electronic controller typically used in centralized air-conditioning units. This guide provides a summary of essential operations, programming steps, and common alarm codes based on official documentation from Eliwell . 1. Programming & Navigation

The controller features two levels of programming: the (unprotected) and the Installer Menu (password protected).

Probe is shorted, interrupted, or incorrectly selected (Parameter ). E2 Defrost Probe Error Faulty defrost probe circuit or out-of-range settings. E3 Display Probe Error Faulty display probe or incorrect probe type configuration. E7 Link Error However, without the manual, navigating its parameters and

To clean the front face of the controller, use a soft, damp cloth. Never use abrasive chemicals, solvents, or direct water sprays. Factory Reset (Defaulting the Unit)

Eliwell SB655/C is a specialized universal controller from the Energy Flex

2 voltage-free (dry contact) configurable digital inputs for door switches, high/low pressure switches, or remote start/stop triggers. Digital Outputs (Relays):

The Eliwell SB655 C is a high-performance, programmable electronic controller designed primarily for commercial refrigeration, HVAC systems, and food processing applications. Part of Eliwell’s robust lineup of industrial automation solutions, this controller manages complex temperature, humidity, and pressure parameters with precision.

| Parameter | Description | Typical Refrigerator (0-5°C) | Typical Freezer (-18°C) | | :--- | :--- | :--- | :--- | | | Compressor differential (hysteresis). The compressor stops at SP and restarts at SP + c1. | 2.0°C | 3.0°C | | c2 | Compressor protection delay (anti-short cycle). Minimum time between stops and restarts. | 3 minutes | 4 minutes | | c3 | Probe display offset. Calibrates if the reading is wrong. | 0.0 | 0.0 | | c4 | Defrost interval (in hours). | 6 hours | 8 hours | | c5 | Defrost duration (in minutes). | 20 minutes | 30 minutes | | c6 | Defrost type: 0 = Electrical (Heater), 1 = Hot gas/Off-cycle. | 1 (Off-cycle) | 0 (Electrical) | | c7 | Drip time after defrost (minutes). | 2 min | 5 min | | AL1 | Low temperature alarm threshold (relative to setpoint). | -2.0°C | -22.0°C | | AL2 | High temperature alarm threshold (relative to setpoint). | +4.0°C | +10.0°C | | ALd | Alarm delay (minutes before sounding). | 60 min | 60 min | | F3 | Temperature unit: 0 = °C, 1 = °F. | 0 | 0 |