💆 ACC LX-2020 Topside Control Panel – Flagship 7-Button Oval Main Control with Dual Auxiliary Outputs
Premium flagship 7-button oval main topside with Piezo switch technology, LCD display, and dual auxiliary outputs for ACC SmarTouch Digital and Uni-Pack systems
📋 Product Overview
The ACC LX-2020 Topside Control Panel is the flagship model in ACC’s LX series, featuring a comprehensive 7-button layout with dual auxiliary outputs. Manufactured by Applied Computer Controls (ACC), this American-engineered panel features patented Piezo electronic switch technology and unique potting techniques to eliminate moisture ingress, offering panel quality and reliability second to none in harsh spa environments.
This large oval panel measures 228 × 93 mm and features an LCD display for clear temperature and time readout. With dedicated buttons for temperature adjustment, jets, lighting, time function, dual auxiliary device control, and a Set function for programming, the LX-2020 provides the most comprehensive spa control available in the ACC oval range for single pump systems.
Compatible with SMTD2000, SMTD3000, Acura Spas, SmarTouch Digital, and Compack Digital systems, the LX-2020 connects via a 14-pin ribbon cable connector. The Time/Temp- dual function button provides added versatility, while the dual Aux outputs (Aux and Aux 2) enable control of multiple auxiliary devices.
✨ Key Features
- ✅ 7 Button Controls – Maximum functionality in oval design
- ✅ Piezo Electronic Switch Technology – Patented design for superior reliability
- ✅ Moisture-Resistant Construction – Unique potting techniques eliminate moisture
- ✅ LCD Display – Clear temperature and time readout
- ✅ Large Oval Design – Flagship 228 × 93 mm form factor
- ✅ Dual Auxiliary Outputs – Aux + Aux 2 for multiple devices
- ✅ Time Function – Built-in time control via Time/Temp- button
- ✅ 14-Pin Ribbon Connector – Secure and reliable connection
- ✅ 1 Pump System Support – Single pump configurations
- ✅ American Quality – ACC engineering excellence
⚙️ Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | ACC (Applied Computer Controls) |
| Model | LX-2020 |
| MPN | LX2020 |
| Series | LX |
| SKU | 8597 |
| Product Type | Main Topside Control Panel |
| Shape | Oval |
| Total Buttons | 7 |
| Display Type | LCD |
| Max Pumps | 1 |
| Auxiliary Outputs | 2 (Aux + Aux 2) |
| Connection Type | 14-Pin Connector with Ribbon Cable |
| Length | 228 mm |
| Width | 93 mm |
| Switch Technology | Patented Piezo Electronic |
| Moisture Protection | Unique Potting Techniques |
| Overlay Display Cut Out | Yes |
🔗 Compatibility Guide
✅ Compatible Control Systems
| System | Model/Type | Compatible |
|---|---|---|
| ACC | SMTD2000 | ✅ Designed for |
| ACC | SMTD3000 | ✅ Designed for |
| Acura Spas | All models | ✅ Compatible |
| ACC | SmarTouch Digital | ✅ Compatible |
| ACC | Compack Digital | ✅ Compatible |
| ACC | All Uni-Pack Systems | ✅ Yes |
How to Verify Compatibility:
- 📍 Check your control box for SMTD2000, SMTD3000, or SmarTouch Digital marking
- 📍 Look for ACC, Acura Spas, or Compack Digital branding
- 📍 Verify 14-pin ribbon cable connection port
- 📍 Contact Parts4Tubs if unsure
🖥️ Display Features
The LCD display provides comprehensive spa information:
| Feature | Description |
|---|---|
| Display Type | LCD |
| Temperature Display | Current and set water temperature |
| Time Display | Time function readout |
| Status Indication | System operating status |
| Visibility | Clear, easy-to-read digits |
| Display Cut Out | Yes (overlay accommodates display) |
🔘 Button Functions & Controls
The 7-button layout provides maximum spa control:
| Button | Function |
|---|---|
| Temp+ | Increase set temperature |
| Time/Temp- | Time function / Decrease set temperature (dual function) |
| Jets | Activate jet pump on/off |
| Lights | Spa lighting control |
| Aux | Auxiliary device 1 control |
| Aux 2 | Auxiliary device 2 control |
| Set | Access programming and settings |
Dual Auxiliary Output Benefits:
- Control two separate auxiliary devices
- Water feature + secondary lighting
- Multiple zone lighting control
- Additional equipment activation
- Expanded spa functionality
Time/Temp- Dual Function:
- Access time functions
- Decrease temperature setting
- Single button, dual purpose
- Space-efficient design
📐 Dimensions
| Measurement | Value |
|---|---|
| Length | 228 mm |
| Width | 93 mm |
| Form Factor | Oval |
Flagship Size: The LX-2020 is the largest oval panel in ACC’s range, positioned as the flagship model above the LX-1000 (165 × 76 mm) and the compact KP-2105 (114 × 50 mm).
🔌 Connection Information
| Specification | Detail |
|---|---|
| Connection Type | 14-Pin Connector with Ribbon Cable |
| Cable Style | Flat ribbon cable with 14-pin plug |
| Connection Port | SMTD2000/SMTD3000/SmarTouch Digital/Uni-Pack Control Box |
Ribbon Cable Benefits:
- Secure connection
- Low profile routing
- Reliable long-term performance
⚠️ Important: This panel uses a 14-pin ribbon connector. Verify your control box has the correct port type before ordering.
🛠️ Installation Guide
Before Installation:
- ⚠️ Disconnect power to spa at the isolator/breaker
- ⚠️ Verify SMTD2000, SMTD3000, or compatible system
- ⚠️ Check cutout accommodates panel size (228 × 93 mm oval)
- ⚠️ Confirm 14-pin ribbon cable connection port on control box
Installation Steps:
- Power Off – Isolate all electrical supply to spa
- Access Control Box – Locate ACC control unit
- Remove Old Panel – Carefully remove existing topside
- Disconnect Cable – Carefully unplug ribbon connector
- Prepare Cutout – Ensure oval opening is correct size
- Route New Cable – Position ribbon cable for clean routing
- Connect New Panel – Plug 14-pin connector into control box
- Verify Orientation – Ensure connector is correctly aligned
- Mount Panel – Secure in oval cutout
- Power On – Restore power and test functions
Testing Checklist:
- [ ] LCD display shows temperature
- [ ] Temp+ increases set temperature
- [ ] Time/Temp- accesses time and decreases temperature
- [ ] Jets button activates pump
- [ ] Lights button controls lighting
- [ ] Aux button controls auxiliary device 1
- [ ] Aux 2 button controls auxiliary device 2
- [ ] Set button accesses programming
🔍 Troubleshooting
Common Issues:
| Problem | Possible Cause | Solution |
|---|---|---|
| Blank display | No power / loose ribbon | Check power, reseat connector |
| Buttons unresponsive | Connection issue | Check ribbon orientation and seating |
| Wrong temperature | Sensor issue (not topside) | Check temperature sensor |
| Pump not responding | Control box issue | Verify control box operation |
| Aux not working | Device connection | Check auxiliary device wiring |
| Time not updating | Programming issue | Use Set to reconfigure time |
| Display flickering | Loose connection | Reseat ribbon cable firmly |
Piezo Switch Tips:
- Piezo buttons provide consistent tactile feedback
- No mechanical components to wear out
- Moisture-resistant for long-term reliability
- Clean button surface regularly
🛡️ Maintenance & Care
Routine Care:
| Task | Frequency |
|---|---|
| Wipe panel with soft, damp cloth | Weekly |
| Check button response | Monthly |
| Inspect ribbon connection | Annually |
| Check cable routing | Annually |
DO NOT:
- ❌ Use abrasive cleaners
- ❌ Use harsh chemicals on panel
- ❌ Pull or tug on ribbon cable
- ❌ Press buttons with sharp objects
♨️ Ideal Applications
| Application | Suitability |
|---|---|
| ♨️ ACC SMTD2000 systems | ✅ Designed for |
| ♨️ ACC SMTD3000 systems | ✅ Designed for |
| ♨️ Acura Spas | ✅ Compatible |
| ♨️ SmarTouch Digital systems | ✅ Compatible |
| ♨️ Compack Digital systems | ✅ Compatible |
| ♨️ All ACC Uni-Pack systems | ✅ Compatible |
| ♨️ Spas with dual auxiliary devices | ✅ Aux + Aux 2 |
| ♨️ Flagship panel preference | ✅ 228 × 93 mm |
| ♨️ Replacement for faulty LX-2020 | ✅ Direct replacement |
| ❌ Multi-pump systems | ❌ 1 pump only |
| ❌ Non-ACC control systems | ❌ Not compatible |
Common Installation Scenarios:
- 🔧 Replacement for damaged LX-2020 topside
- 🔧 SMTD2000/SMTD3000 system repair
- 🔧 Upgrade from LX-1000 for dual aux capability
- 🔧 Acura Spas control panel replacement
❓ Frequently Asked Questions
Q: What’s the difference between LX-2020 and LX-1000?
A: The LX-2020 has 7 buttons (vs 6), is larger at 228 × 93 mm (vs 165 × 76 mm), includes dual auxiliary outputs (Aux + Aux 2 vs single Aux), and features a Time/Temp- dual function button. The LX-2020 is the flagship model in the LX series.
Q: What is Piezo switch technology?
A: Piezo electronic switch technology is a patented design that provides superior tactile feedback, exceptional durability, and moisture resistance. Combined with unique potting techniques, it eliminates moisture ingress for reliable operation in harsh spa environments.
Q: What systems is this compatible with?
A: The LX-2020 fits SMTD2000, SMTD3000, Acura Spas, SmarTouch Digital, Compack Digital, and all ACC Uni-Pack controllers.
Q: What do the two Aux buttons control?
A: The Aux and Aux 2 buttons control two separate auxiliary outputs for additional spa devices such as water features, secondary lighting, zone lighting, or other accessories connected to your spa pack.
Q: What does Time/Temp- mean?
A: This is a dual function button. It provides access to time functions and also serves as the temperature decrease button, offering two functions in one control.
Q: Is the overlay included?
A: The overlay with display cut out is part of the LX-2020 assembly.
🏆 Why Choose the ACC LX-2020 Topside Panel
- ✅ Flagship Model – Maximum functionality
- ✅ 7 Buttons – Comprehensive spa control
- ✅ Piezo Switch Technology – Patented superior reliability
- ✅ Moisture-Resistant – Unique potting techniques
- ✅ LCD Display – Clear temperature and time readout
- ✅ Dual Auxiliary Outputs – Aux + Aux 2
- ✅ Time Function – Built-in time control
- ✅ Large Oval Design – 228 × 93 mm
- ✅ 14-Pin Ribbon Connection – Secure interface
- ✅ American Quality – ACC engineering
🇬🇧 Why Buy from Parts4Tubs
- ✅ UK-based company with local support
- ✅ Fast UK delivery
- ✅ Expert advice from spa specialists
- ✅ Compatibility assistance available
- ✅ Full warranty support
- ✅ Easy returns within 30 days
- ✅ ACC Uni-Pack parts stocked
✨ Summary
The ACC LX-2020 Topside Control Panel is the flagship 7-button oval main control in ACC’s LX series, featuring patented Piezo electronic switch technology and unique moisture-resistant potting techniques. This large panel measures 228 × 93 mm and features an LCD display with dedicated buttons for Temp+, Lights, Jets, Time/Temp-, Aux, Aux 2, and Set functions. The dual auxiliary outputs (Aux + Aux 2) provide control of multiple auxiliary devices. Compatible with SMTD2000, SMTD3000, Acura Spas, SmarTouch Digital, Compack Digital, and all ACC Uni-Pack controllers. Connects via 14-pin ribbon cable. The ultimate choice for spa owners seeking maximum control functionality with dual auxiliary outputs. Order from Parts4Tubs for fast UK delivery and expert compatibility assistance.




