Eliwell Sb655 C Manual Repack
Eliwell SB655/C is an electronic controller designed for centralized air-conditioning units, primarily used for managing compressors and fan stages. Frigo Soğutma
Technical Guide: Understanding the Eliwell SB655 C Manual Repack
For refrigeration technicians and maintenance engineers, the Eliwell SB655 series represents a staple in commercial and industrial temperature control. When dealing with legacy units or systems that have undergone significant repairs, you may encounter the term "Manual Repack." eliwell sb655 c manual repack
| Terminal | Description |
| --- | --- |
| 1-2 | Power supply (24V AC/DC) |
| 3-4 | Sensor input 1 ( thermocouple or PT100) |
| 5-6 | Sensor input 2 (optional) |
| 7-8 | Relay output 1 (heating/cooling) |
| 9-10 | Analog output (optional) | Eliwell SB655/C is an electronic controller designed for
Key Features
- Model: SB655‑C
- Display: Backlit LCD with easy-to-read temperature and status icons
- Control Inputs: Temperature probe (NTC/thermistor), selectable probe types
- Outputs: Relay outputs for compressor, defrost, fan, and alarm
- Modes: Cooling/heating selection, manual/automatic defrost options
- Alarms: High/low temperature, probe fault, door open (configurable thresholds)
- Programming: Intuitive menu with password protection and preset parameter groups
- Power: Low-voltage or mains options depending on configuration
- Mounting: Panel-mount, compact form factor for tight installations
- Certifications: CE and applicable industry standards
Cons ❌
- Not Official: No guarantee of accuracy. A single wrong parameter table can damage a compressor or cause defrost failures.
- Missing Safety Info: Repacks often omit important warnings about electrical isolation, maximum relay loads, or IP ratings.
- Outdated Versions: Some repacks are based on old firmware (e.g., pre-2018). The SB655 C had minor revisions, so a repack from 2015 may have incorrect P0-P4 settings.
- No Index/Bookmarks: Unlike the official PDF, repacks often lack clickable navigation.
Pr (Probes): Calibration and probe type selection (e.g., converting bar to °C). AL (Alarms): High/Low pressure thresholds and delay times. Vital Parameters to Check: Description Default/Typical St1 Suction Setpoint Depends on gas type rE1 Suction Differential 1.0 - 2.0 bar St2 Condensing Setpoint 12.0 - 15.0 bar nCo Number of Compressors ⚠️ Troubleshooting Common Alarms If your display is flashing a code, refer to this list: E1: Suction probe failure (check wiring or sensor). E2: Condenser probe failure. Cons ❌
- SET: View/modify target setpoint.
- DEF (Down arrow): Manual defrost initiation.
- UP / DOWN: Navigate parameters.
- °C/°F + SET: Access hidden parameter menu (hold 3 seconds).