Finding a direct "repack" manual for the Eliwell SB655 C can be tricky because these units are often integrated into specific commercial refrigeration systems (like those from Costan or Epta). The SB655 C is a programmable controller designed for compressor racks or complex cooling circuits.
Below is a comprehensive guide to understanding, installing, and programming the Eliwell SB655 C. 🛠️ Eliwell SB655 C Technical Overview
The SB655 C belongs to the Eliwell SmartVideo or SB series. These are high-end controllers used primarily in industrial refrigeration. They handle multiple stages of suction (compressors) and discharge (fans/condensers). Key Features Multi-Load Management: Controls up to 5 or 6 relay outputs.
Analog Inputs: Supports NTC, PTC, or 4-20mA pressure transducers.
Communication: Compatible with TelevisSystem and Modbus protocols.
User Interface: Typically features a 4-button layout with a dedicated LED display for status icons. 🔌 Installation and Wiring
Before powering the device, ensure the voltage matches the label (usually 100-240V~ or 24V~/=). Terminal Connections Power Supply: Connect to the designated L/N terminals. Probes (Pb1, Pb2):
Pb1: Usually the suction pressure transducer or temperature probe. Pb2: Usually the condensing pressure or temperature probe.
Digital Inputs: Used for high-pressure switches or emergency stops. Relay Outputs: Out 1–4: Compressor stages. Out 5–6: Condenser fans or alarm signals. ⌨️ User Interface & Navigation
The SB655 C uses a specific button logic to prevent accidental changes:
SET Button: Press once to view the Setpoint. Press and hold to enter the programming menu.
UP/DOWN Arrows: Used to scroll through parameters or increase/decrease values. ESC/Back: Used to exit a folder or cancel a change. How to Change the Setpoint Press and release the SET key. The current value will flash. Use UP or DOWN to change the value. Press SET again to confirm. ⚙️ Parameter Configuration (Level 1 & Level 2)
Parameters are divided into functional groups (folders). To access the "Deep" configuration (Level 2), you often need a password (default is usually 15 or 00). Common Parameter Folders:
CP (Compressors): Number of stages, rotation type (FIFO/LIFO), and minimum run times.
Fn (Fans): Condenser control settings and cut-in/cut-out differentials.
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.
HA: High-pressure alarm (check condenser fans or cleanliness). LA: Low-pressure alarm (check refrigerant levels). dA: Digital input alarm (usually a tripped safety switch). 💾 Maintenance and "Repack" Tips
When we talk about a manual repack, it often refers to restoring the unit to factory defaults or cloning settings for a replacement unit.
Copy Card: Use the Eliwell "Unicard" or "CopyCard" to upload the configuration from a working SB655 C and download it to a new one. This saves hours of manual entry.
Hard Reset: To reset to factory defaults, look for the rSt parameter in the hidden menu, or hold the SET and DOWN buttons during power-up (check specific firmware version for compatibility). To help you get the exact data you need, could you tell me: What specific error code or behavior are you seeing?
Are you trying to program a new unit from scratch or fix an existing one?
What is the refrigerant gas type (e.g., R404a, R134a, CO2) being used?
I can provide the specific pressure-to-temperature conversion tables for your setup.
Understanding the Eliwell SB655 C is essential for refrigeration technicians and industrial maintenance teams who manage temperature-controlled environments. While these units are known for their longevity, finding a comprehensive "repack" or condensed guide for the SB655 C can be difficult since many legacy manuals are out of print.
This article serves as a consolidated technical reference for the Eliwell SB655 C, covering installation, wiring, and parameter programming.
Eliwell SB655C Manual Repack: A Step-by-Step Guide
The Eliwell SB655C is a popular temperature control device used in various industrial and commercial applications. If you've lost or damaged the original manual, don't worry! This repack provides a concise and easy-to-follow guide to help you get started with your Eliwell SB655C.
Table of Contents
1. Introduction
The Eliwell SB655C is a microprocessor-based temperature controller designed for controlling and monitoring temperature in various applications. It features a user-friendly interface, digital display, and configurable inputs and outputs. eliwell sb655 c manual repack
2. Safety Precautions
Before installing and operating the Eliwell SB655C, please read and follow these safety precautions:
3. Installation and Wiring
To install the Eliwell SB655C:
Wiring Diagram:
| 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) |
4. Configuration and Settings
To configure the Eliwell SB655C:
Default Settings:
| Parameter | Default Value | | --- | --- | | Temperature setpoint | 20°C (68°F) | | Hysteresis | 2°C (3.6°F) | | Delay | 10 seconds |
5. Operation and Troubleshooting
The Eliwell SB655C features a simple and intuitive interface:
Troubleshooting Tips:
Appendix: Error Codes and Wiring Diagrams
Refer to the appendix for a comprehensive list of error codes and wiring diagrams.
By following this repack, you'll be able to successfully install, configure, and operate your Eliwell SB655C. If you have any further questions or issues, consult the manufacturer's documentation or contact a qualified technician.
Eliwell Energy Flex SB655/C is a universal electronic controller designed for centralized air-conditioning units, supporting up to 2 circuits and 4 compressors Electric Automation Network Core Specifications Power Supply : 12-24V~ or 24V= (+10% / -10%) Frigo Soğutma Dimensions : Standard Eliwell 32x74mm format for panel mounting Frigo Soğutma Inputs/Outputs Digital Inputs : 6 independent and configurable inputs Digital Outputs : Up to 5 relay outputs plus 1 Open Collector output Frigo Soğutma Analogue Outputs
: Up to 3 configurable 0…10V, 0…20mA, or 4…20mA outputs Configuration and Navigation
Access to parameters is managed through a folder-based menu system with four primary folders: (Analogue Inputs), (Digital Inputs), (Analogue Outputs), and (Digital Outputs) Frigo Soğutma Accessing the Full Menu : Press and hold the button for more than 5 seconds until "PA2" appears. Press
again and use the arrow keys to enter the security code (default is Micro Matic Changing Parameters arrows to scroll through folders to enter a folder and select a resource Modify the value with arrow keys and press Micro Matic to return to the previous level or exit Advanced Management
Electronic controllers for centralised air-conditioning units
Eliwell SB655/C is a universal controller from the Energy Flex
range designed for centralized air-conditioning units and chillers with up to two refrigerant circuits. This model is particularly robust for managing compressors (scroll, semi-hermetic, or screw) and features intelligent capacity management to balance operating hours across multiple power output steps. Electric Automation Network Core Technical Specifications Power Supply : 12–24V AC or 24V DC. Input/Output Configuration
: Includes 6 digital inputs, up to 5 relay outputs, and multiple analogue outputs (0...10V, 4...20mA, or PWM). Sensor Support
: Configurable for NTC, PTC, or various current/voltage signals. Connectivity : Equipped with a TTL serial port for Multi-Function Key (MFK)
connections and RS-485 for Modbus or Televis supervision systems. Frigo Soğutma Key Operational Features Compressor Management
: Controls up to 4 power stages per circuit or single circuits with 4 compressors, featuring automatic rotation to ensure even wear. Thermoregulation
: Supports control based on inlet or outlet water temperature, making it ideal for heat pump and chiller applications. Display & Interface
: A 4-digit display with 18 icons (7 configurable) provides clear status and alarm monitoring. Advanced Functions Finding a direct "repack" manual for the Eliwell
: Includes dynamic set point management, automatic summer-winter changeover, and "Free Cooling/Heating" logic. Electric Automation Network Maintenance & Troubleshooting Alarm History
: The controller stores an alarm history for rapid diagnosis of past issues. Common Alarm Codes : Low or high temperature alarm on probe 1. : External alarm triggered by a digital input. : Open door alarm. Programming
: Parameters are organized into folders with three access levels (End User, Service, and Constructor). Configuration can be simplified using a to download/upload parameter maps. Electric Automation Network Relevant Documentation & Resources
For detailed wiring diagrams and full parameter tables, you can refer to the official Energy Flex Data Sheet or the comprehensive Energy Flex User Manual terminal wiring diagram for a particular circuit configuration?
Electronic controllers for centralised air-conditioning units 28 Mar 2007 —
Eliwell SB655/C is a universal electronic controller within the Energy Flex
series, specifically designed for centralized air-conditioning units, chillers, and heat pumps. It is capable of managing up to two circuits and up to four compressors (or power steps) with balanced operating hours. Electric Automation Network Key Technical Specifications Description Power Supply 12...24V~ / 24V= (±10%) 5 configurable analog inputs (3x NTC + 2x I/V) Digital Outputs 5 high-voltage relays (DO1–DO4, DO6) Analog Outputs 2 PWM + 2 Voltage (0-10V) + 1 Current (4-20mA) Panel mounting (hole size: 71x29mm) Communication TTL port (standard); RS-485 for models with the "/S" suffix Supports Modbus RTU and Televis Operational Features Compressor Management
: Supports Scroll, Semi-Hermetic, and Screw compressors. It can also manage compressors with variable frequency drives. Adaptive Cooling
: Features an adaptive function for systems without a storage tank and intelligent capacity management to meet specific demand. Climate Control
: Includes automatic summer-winter changeover and "Free Cooling/Free Heating" logic to optimize energy based on outdoor conditions. Maintenance
: Built-in alarm history and power limitation functions to prevent system overloads. Electric Automation Network Installation & Configuration
: Power supply and high-voltage outputs should use cables provided by
, and the device must be connected via a suitable transformer.
: Parameters can be uploaded or downloaded using a pre-programmed "Copy Card" through the TTL serial port. Full Menu Access
: To access the full parameter settings menu (PA2), press the
button for more than five seconds and enter the security code (default is Detailed technical documents, such as the Eliwell SB655 Manual Energy Flex Data Sheet
, provide comprehensive wiring diagrams and parameter tables. full list of parameter codes for this model?
The Eliwell SB 655/C is a high-performance universal controller designed for managing centralized air-conditioning and refrigeration units with up to two circuits . Part of the Energy Flex range, it is optimized for controlling chillers, heat pumps, and condensing units . Key Features and Specifications
The SB 655/C is a versatile tool for complex HVAC systems, offering:
Compressor Management: Supports up to 4 power steps for scroll, semi-hermetic, or screw compressors .
Advanced Control: Features intelligent compressor management to adapt to demand and balanced operating hours for longevity .
Energy Efficiency: Includes "Free Cooling" and "Free Heating" functions, plus support for variable frequency drives (VFD) for compressors and water pumps .
Connectivity: Fully compatible with Modbus and Televis protocols for integration into Building Management Systems (BMS) . Hardware Setup: Inputs: 5 configurable sensors (NTC, 4…20mA, 0…10V) .
Outputs: 6 relays, 2 PWM outputs, and 2 analogue 0-10V outputs .
Additional: Real-Time Clock (RTC) included in the "/C" model variant . Installation and Wiring Guidelines
Proper installation is critical for safety and device performance.
Electronic controllers for centralised air-conditioning units
“SP” (Setpoint).The difference between a technician who struggles and a technician who solves problems in minutes is often just well-organized documentation. The Eliwell SB655 C is a robust workhorse, but without a proper manual, you are guessing with parameters that can freeze product or burn out compressors.
A quality Eliwell SB655 C Manual Repack transforms the controller into an intuitive tool. You get: check the manual specifics
Final action step: Bookmark this article, download or assemble your repack today, and print the one-page quick reference. Tape it inside the electrical panel of every cabinet that uses an SB655 C. Your future self—and your compressors—will thank you.
Have a specific parameter you can’t figure out? Leave a comment below (or on the HVAC forum where you found this guide) with the code, and the community will help decode it using the repack framework.
Master Guide: Mastering the Eliwell SB655/C Universal Controller
Whether you are maintaining a commercial HVAC system or fine-tuning a chiller, the Eliwell SB655/C stands as a robust, universal controller designed for high-performance management. This guide serves as a comprehensive "manual repack," breaking down everything from basic technical specs to advanced configuration procedures. 1. Technical Overview: The SB655/C Core
The SB655/C is part of the Energy Flex series, specifically engineered to manage up to two refrigeration circuits with a maximum of four capacity steps.
Model Breakdown: The /C suffix indicates the inclusion of an internal Real-Time Clock (RTC), while /S models feature an integrated RS-485 serial port.
Capacity Management: It supports various compressor types, including Scroll, Semi-Hermetic, and Screw.
Sensor Inputs: Typically equipped with 5 sensor inputs, compatible with NTC, 4-20 mA, and 0-10 V probe types. Digital Outputs: Features 6 configurable relay outputs. 2. Navigating the Interface
The SB655/C uses a classic Eliwell 4-button interface. Getting familiar with these is the first step to successful configuration.
Set Point Adjustment: Press and release the SET key to view the current value. Use the Up/Down arrows to adjust and press SET again to confirm.
Quick Menu: Access folders like AL (Alarms), Pb1/Pb2 (Probe values), and SEt (Set point) by briefly pressing the SET button.
Manual Defrost: Most Eliwell controllers in this family allow you to trigger a manual defrost by holding the Up arrow or a dedicated defrost key for several seconds. 3. Programming & Installer Access
For deep configuration, you must enter the Installer Level (PA2).
Контроллер SB 655/C/S Eliwell - Сибирский Холод
The Eliwell SB655/C (part of the Energy Flex series) is a parametric controller specifically designed for centralized air-conditioning units, such as chillers and heat pumps with up to two circuits and four compressor steps.
While "repack" is not an official product designation, the controller itself is highly regarded for its versatility in HVAC/R applications. Key Technical Capabilities
Compressor Management: Supports various compressor types including Scroll, Semi-Hermetic, and Screw, with balanced operating hours.
System Integration: Includes a serial connection for integration with plant supervision systems and supports Modbus and Televis protocols.
Built-in Functions: Features an integrated Real-Time Clock (RTC) (denoted by the /C suffix), automatic summer-winter changeover, and support for free cooling/heating.
Expansion Ready: Compatible with expansion modules like the SE600 series to increase available resources and inputs. Ease of Use & Programming
Electronic controllers for centralised air-conditioning units
The original manufacturer’s manual is technically accurate but suffers from three major flaws:
“r0” or “c21”.The Eliwell SB655 C Manual Repack solves this by:
“SP” for Set Point to “br” for buzzer control).| Parameter | Old Value (Cooler) | New Value (Freezer) | Navigation notes from repack |
| :--- | :--- | :--- | :--- |
| LS (Minimum SP) | -5°C | -30°C | Found after parameter US |
| SP (Setpoint) | 3°C | -18°C | Directly accessible via SET key |
| dIt (Defrost interval) | 8 hours | 4 hours | Parameter group dF |
| dL (Max defrost duration) | 20 min | 35 min | For heavy ice buildup |
| FSt (Fan stop temp) | 4°C | -5°C | Prevents icing of evaporator |
The manual shows 11 terminals. Here is the cheat sheet for the most common setup (230V AC supply with a pressure transducer).
Terminal Block (Left to Right):
The "Gotcha": If you are using a 4-20mA pressure transmitter, you must bridge terminal 7 (V+) to terminal 8 (Signal) via a 500-ohm resistor? No. Actually, check the manual specifics, but modern transducers just use 2 wires. Pro tip: Most SB655C failures happen because techs wire the pressure transducer backward. Red = 7, Black = 9, White = 8.
Let’s walk through a real-world scenario: Converting a medium-temperature cooler (3°C) to a freezer (-18°C).