Becsys5 Installation And Technical Manual May 2026
is a high-performance water chemistry controller designed for commercial aquatic facilities like pools, spas, and water parks. Managing it effectively requires a solid understanding of both its physical installation and the technical logic that keeps your water crystal clear. Key Installation Requirements
Before diving into the software, the hardware must be correctly positioned. Enclosure & Environment: The
is housed in a NEMA 4X (IP65) enclosure, which is splash-proof but not suitable for explosive environments. It should be mounted in a well-ventilated area that prevents environmental extremes.
Plumbing Setup: All components, including the machined flow cell, should be mounted and pressure-tested before any electrical wiring begins.
Safety Interlocks: The "Connection Center" includes an Interlock Relay to ensure chemical feeds, UV systems, and heaters only operate when the circulation pump is active.
Electrical Code: Installations must strictly comply with local plumbing and electrical codes. Advanced Technical Features The "technical" side of the manual highlights the 's capability as a "workhorse" for automation.
TruePPM™ Monitoring: Beyond standard ORP, the controller can use specialized sensors to monitor Free, Total, and Combined chlorine directly with PPM setpoints.
VFD Control: It features patent-pending technology to control Variable Frequency Drives (VFDs), adjusting circulation rates in GPM while ensuring chemistry remains stable.
Remote Management: With BECSys Live, operators have 24/7 remote access via PC, Mac, or smartphone to change settings and review system logs.
Security: Multi-level password protection and an emergency "Off" button on the front panel provide both operational security and safety. Essential Maintenance & Calibration Operation and Maintenance Manual - BECSys5 - Aquafinity
Master Your Pool Chemistry: A Guide to the BECSys5 Installation & Technical Manual
Whether you’re managing a high-traffic waterpark or a professional lap pool, the BECSys5 Water Chemistry Controller
is often described as the "workhorse" of the industry. This guide breaks down the core technicalities found in its Installation and Technical Manual to help you get your system running efficiently. 1. Pre-Installation Checkpoints
Before you begin wiring, ensure the mechanical environment is ready.
Mounting Environment: Use a NEMA 4X (IP65) rated enclosure for protection. Ensure the location has adequate ventilation and is not in an explosive environment.
Plumbing First: All flow cell components must be mounted and the plumbing pressure-tested before any electrical wiring begins.
Code Compliance: Installation must strictly adhere to local plumbing and electrical codes. 2. Core Technical Specifications
is highly scalable, supporting advanced monitoring beyond basic pH and ORP.
Standard Inputs: Includes pH, ORP, and temperature sensors as standard equipment.
Advanced Monitoring: Capable of tracking Total Alkalinity (TA), Free/Total Chlorine (PPM), Turbidity, and even TDS (Total Dissolved Solids). Safety Features:
Manual-On Limit: Automatically returns overrides to "Automatic" mode to prevent chemical overfeeds.
No-Flow Alarm: Lockouts prevent chemical feed if the system detects no water circulation.
Emergency Off: A physical front-panel button that immediately halts all outputs. 3. Setting Up the System
Programming the controller is done through a multi-level menu tree. Operation and Maintenance Manual - BECSys5 - Aquafinity becsys5 installation and technical manual
The BECSys5 Installation and Technical Manual (Part Number 8620112) is the primary technical resource for the professional installation and configuration of the BECSys5 Water Chemistry Controller. Produced by BECS Technology, Inc., this document covers the mechanical and electrical requirements necessary to ensure the system operates within its design specifications. Key Components of the Manual
Mechanical Installation: Detailed instructions for mounting the controller and plumbing the flow cell. It includes specifications for compatible flowmeters ranging from 1/2” up to 36” to accommodate various commercial pool or industrial water applications.
Electrical Wiring: Guidance on high-voltage connections for powering chemical feed pumps, as well as low-voltage signal wiring for sensors like pH, ORP (Oxidation-Reduction Potential), and temperature.
Technical Specifications: Engineering data regarding power requirements, relay ratings, and communication protocols (such as Ethernet or Serial) for remote monitoring.
Maintenance & Warranty: The manual explicitly states that the limited warranty is contingent upon using authorized replacement parts and sensors; using non-authorized components may void coverage. Related Documentation
The Installation and Technical Manual is typically used in conjunction with other BECS resources found at providers like Aquafinity, including:
Operation and Maintenance Manual: For day-to-day user interactions and calibration.
Quick Reference Sheet: For rapid troubleshooting and basic menu navigation. Operation and Maintenance Manual - BECSys5 - Aquafinity
Before any wiring begins, the physical environment must be prepared. The
is housed in a NEMA 4X (IP66) glass-reinforced polycarbonate enclosure designed to withstand harsh mechanical room conditions.
Mechanical Mounting: All components, including the machined flow cell and the controller itself, should be securely mounted to a backboard before starting plumbing.
Plumbing Checklist: Install the flow cell plumbing and perform a pressure test before any electrical work. This ensures no leaks will interfere with the electronic sensors. 2. The Connection: "Wiring and Power"
The controller acts as the "brain" of the mechanical room, coordinating various high-voltage and low-voltage systems.
Power Supply: It typically includes a 36-watt 24VDC power supply to drive external devices.
The Safety Shield: During internal maintenance like fuse replacement, an Internal Safety Shield is used to prevent accidental contact with high-voltage circuitry.
Interlock Relay: An essential safety feature that ensures chemical feeds, heaters, and UV systems only operate when the circulation pump is active. 3. The Senses: "Advanced Sensor Integration"
doesn't just "guess" water quality; it uses proprietary technology to monitor multiple parameters 24/7.
Standard Monitoring: It tracks pH, ORP (sanitizer levels), and temperature using high-precision sensors.
Specialized Sensors: It can be upgraded with TruePPM sensors for direct free chlorine monitoring, conductivity (TDS) sensors, and turbidity meters.
Inventory Tracking: Optional 4-20mA inputs allow the controller to monitor liquid chemical tank levels, providing alerts before an acid or chlorine tank runs empty. 4. The Intelligence: "Automation and Efficiency"
Once sensors are calibrated, the controller optimizes the facility's performance to save costs and energy.
VFD Control: It can directly manage a Variable Frequency Drive (VFD) to adjust circulation rates based on real-time needs, significantly reducing energy consumption.
Intelligent Autofill: It maintains proper pool water levels and can even identify leaks by monitoring water consumption. Navigate to System → Network Scan Select MSTP
Vitals Tracking: It calculates the Langelier Saturation Index (LSI) to help operators maintain perfect water balance and prevent equipment corrosion or scaling. 5. The Safety Net: "Alarms and Remote Access"
is designed to be a "workhorse" that keeps operators informed even when they aren't on-site.
Failsafes: Built-in overfeed timers and "No Flow" alarms automatically shut down chemical feeds if a system failure occurs.
BECSys Live: Through its standard Ethernet connection, operators can view status, change settings, and receive text or email alerts from any smartphone or computer.
Technical Data Sheet - BECSys5 - Commercial Aquatic Supplies
The BECSys5 is a high-performance water chemistry controller designed for commercial aquatic facilities.
Key aspects of its installation and technical operation include: Installation Guidelines Manual Review
: Read the manual completely before starting; installation requirements vary based on the specific application. Prerequisites
: Mount all components, install flow cell plumbing, and perform pressure testing before wiring the controller. Compliance
: Ensure all work adheres to local plumbing and electrical codes.
: The standard manual covers firmware v2.20; for newer versions, contact your distributor for an updated copy. Technical Capabilities Monitoring & Control
: Provides continuous tracking and dosing for pH, ORP (sanitizer/oxidizer), conductivity, TDS, and turbidity. Operational Systems
: Features patent-pending VFD control and Total Dynamic Head monitoring to optimize circulation pump efficiency. Hardware Protections
: Data logs are maintained in battery-protected RAM to prevent data loss during power failures. Connectivity : Standard Gbit Ethernet supports the BECSys Live!
online portal, mobile apps (iOS/Android), and automated email/text alarm notifications. Navigation & Programming Accessing Menus : Press and hold the keys simultaneously for three seconds.
: If an access code is set, use the arrow keys to enter the three-digit code. Adjusting Settings arrows to scroll through settings and the key to select or save changes. Auto-Timeout
: The controller will automatically exit the program menu after five minutes of inactivity. Technical Specifications Range / Resolution 0 to 14 pH (0.1 or 0.01 resolution) -1000 to +1000 mV (1 mV resolution) Temperature 32 to 150°F / 0 to 66°C (1° resolution) Conductivity/TDS 0 to 20,000 micro-mhos / 10,000 ppm Up to 8800 gpm (0.1 gpm resolution) For complete documentation, you can view the BECSys5 Installation and Maintenance Manual Technical Data Sheet or a specific calibration guide for the sensors? BECSys5 Installation and Technical Manual - Googleapis.com
The is a high-end water chemistry controller designed for commercial aquatic facilities like pools, spas, and water parks. It provides advanced monitoring for pH, ORP (sanitizer level), temperature, and flow rate, with additional capabilities for managing total alkalinity and chemical inventory. Installation Overview
Proper installation is critical for the accuracy and longevity of the controller. Always refer to the full BECSys5 Operation & Maintenance Manual before starting.
Environmental Requirements: The unit is housed in a NEMA 4X (IP65) enclosure, which is water-resistant but not designed for explosive environments. Ensure it is mounted in a well-ventilated area that stays within recommended environmental specifications. Mechanical & Plumbing:
Mounting: All components should be securely mounted to a backboard for ease of access.
Piping: It is highly recommended to use the pressure-to-pressure method for piping the water treatment system into the filtration lines.
Testing: Install the flow cell plumbing and perform a pressure test before wiring the controller to avoid water damage during setup. 4.2 Factory Reset (if needed)
Electrical Setup: All wiring must comply with local plumbing and electrical codes. For remote monitoring features, the BECSys5 comes standard with Gbit Ethernet. Technical Features & Controls Monitoring Capabilities: Beyond basic pH and ORP, the
can monitor True PPM (Free, Total, and Combined chlorine), Total Alkalinity, and even system turbidity. Safety Fail-Safes:
Manual-On Limit: Automatically returns manual overrides back to automatic mode to prevent accidental chemical overfeeding.
No Flow Alarm: Locks out chemical feed if it detects a lack of circulation, ensuring sensors aren't monitoring stagnant water.
Feed Limit Alarms: Programmable timers to prevent overfeeding due to equipment failure.
Remote Management: Through the BECSys Live! portal, operators can access real-time data and receive alarm notifications via email or text on smartphones and tablets. Maintenance & Troubleshooting
Calibration: The controller allows for Reset Calibration, which restores settings to factory defaults if readings become inconsistent.
Alarms: The digital display will scroll through multiple alarms to help identify issues like "Booster FAILSAFE" (continuous feeding without reaching set point) or flow disruptions.
Sensor Care: The proprietary pH and ORP sensors typically carry a 2-year warranty and are essential for maintaining the "workhorse" performance of the unit. BECSys5 Installation and Technical Manual - Googleapis.com
The BECSys5 Installation and Technical Manual (Document 8620112) provides comprehensive instructions for mounting, wiring, and configuring the water chemistry controller, including setup for sensors and flowmeters. It covers hardware installation, software configuration, and maintenance, with details on integrating optional equipment like conductivity sensors. Access the full manual from the official documentation, such as the PDF hosted at BECS Technology Support Page storage.googleapis.com BECSys5 Installation and Technical Manual - Googleapis.com
The BECSys5 is an industry-leading water chemistry controller designed for commercial aquatic facilities, including pools, waterparks, and aquariums. Proper setup and maintenance are vital for ensuring water safety and system longevity. Installation Guidelines
Successful installation requires following a specific sequence to protect sensitive electronic components and ensure accurate sensor readings.
Environmental Requirements: The BECSys5 is housed in a NEMA 4X (IP65) enclosure, making it splash-resistant but not suitable for explosive environments. It should be mounted in a well-ventilated area where temperature specifications are not exceeded.
Mounting and Plumbing: Before any electrical work, mount the controller and install the flow cell plumbing. The system must be pressure tested to ensure there are no leaks in the sample stream.
Electrical Setup: All wiring must comply with local plumbing and electrical codes. The unit features an internal safety shield to prevent high-voltage contact during fuse replacement.
Interlock Verification: It is critical to establish a verifiable electrical interlock to ensure chemical feed only occurs while the circulation pump is running. Technical Features and Configuration
The BECSys5 offers deep customization through its menu-driven interface.
Standard Inputs: Includes pH (0–14 range), ORP (-1000 to +1000 mV), and temperature (32–150 °F).
Optional Monitoring: Can be expanded to track free chlorine/bromine (0–20 ppm), conductivity/TDS, turbidity, and system flow rate.
Relay Logic: Users can assign relays to specific functions, such as sanitizer feed or pH adjustment.
Connectivity: Features standard 100BaseT Ethernet for remote access via BECSys Live!. Operational Programming BECSys5 Installation and Technical Manual - Googleapis.com
Here is the full text of the BECSys5 Installation and Technical Manual.
7.2 Common Issues and Resolutions
| Symptom | Likely Cause | Fix | |---------|--------------|-----| | Server cannot discover controllers | BBMD not configured | Add foreign device entry in server BBMD table | | Analog input reads -32768 | Open circuit / bad sensor | Check 24V loop power, measure mA with multimeter | | Timeouts writing schedules | BACnet Max Master too low | Set Max Master = 99 for MS/TP trunks | | Graphics load slowly | Too many SVG filters | Optimize images, use raster for backgrounds |
4.3 Device Discovery
From gateway web interface (HTTP port 80):
- Navigate to System → Network Scan
- Select MSTP trunk (Trunk 1)
- Click Start Discovery – wait for 60 seconds
- Commissioned devices appear as green; unconfigured as orange.
4.2 Factory Reset (if needed)
- Press and hold RESET button for 10 seconds until all LEDs flash red.
- Release – controller reverts to DHCP/IP 192.168.1.100.