⚡ Davey Spa Power SP1200 3.5kW Control Box – High-End Spa Control System

Advanced electronic control pack designed for high-demand spa pools and swim spas with dual heater element technology

🎛️ Product Overview

The Davey Spa Power SP1200 with 3.5kW heater represents the high-end range of Davey’s spa pool control systems, engineered for demanding applications requiring extensive pump configurations and superior heating capacity. Manufactured by Davey Water Products, this sophisticated controller delivers comprehensive management of multiple pumps, blowers, ozone systems, and lighting within a single, professionally designed unit.

The SP1200 control pack features an integrated dual-element 3.5kW heating assembly housed within a durable engineering plastic heater tube. The heating element is protected with a fluoropolymer coating for extended service life and corrosion resistance. Unlike the SP800, the SP1200 incorporates two heating element legs and two over-temperature cut-out devices for enhanced safety and performance.

With expanded pump configuration options supporting up to four pumps across Pump 1 and Pump 2 outputs, optional circulation pump compatibility, variable speed blower support, and comprehensive auxiliary outputs, the SP1200 adapts to large spa pools and swim spas with multiple jet zones. The controller’s waterproof AMP connectors and splash-proof enclosure ensure reliable operation, whilst the user-friendly touchpad provides intuitive control with multilingual display capabilities across seven languages.

The SP1200 comes standard with an in-pool temperature sensor for precise temperature regulation, making it the ideal choice for high-end domestic installations, commercial spa environments, and swim spa applications.

✨ Key Features

✅ 3.5kW Dual Element Heater – Factory-fitted dual heating element legs with fluoropolymer coating for superior heat output and corrosion resistance

✅ Expanded Pump Configuration – Control up to four pumps via Pump 1A/1B and Pump 2A/2B sockets with single-speed and dual-speed options

✅ Dual Thermal Cut-Out Protection – Two electromechanical over-temperature devices for enhanced safety compared to single-element systems

✅ In-Pool Temperature Sensor Included – Standard fitment for precise temperature control and accurate water temperature display

✅ Variable Speed Blower Compatible – Dedicated SPVSB socket for Davey Variable Speed Blower with full touchpad speed control

✅ 24-Hour Circulation Pump Support – Dedicated circ pump socket for continuous low-flow water circulation and filtration

✅ Auxiliary Output – Additional AUX socket for single-speed pump, blower, or other mains-powered accessories

✅ Ozone System Ready – Integrated ozonator output socket automatically synchronised with filtration pump operation

✅ Comprehensive LED Lighting Support – Four internal sockets for Davey Spa LED lights plus controlled 12V DC output for third-party lighting

✅ Dual Touchpad Capability – Connect up to two touchpads including optional secondary touchpad for poolside control

✅ Single or Three-Phase Operation – Configurable for 220-240V single phase or 380-415V three-phase power supply

✅ Multilingual Interface – Touchpad display supports seven languages including English, French, German, Dutch, Spanish, Portuguese, and Japanese

⚙️ Electrical Specifications

Specification	Value
Input Voltage	220-240V AC (Single Phase) or 380-415V AC (Three Phase)
Frequency	50-60Hz
Maximum System Current (Single Phase)	40A
Maximum System Current (Three Phase)	16A per phase
Heater Output	3.5kW
Heater Type	Dual fluoropolymer-coated elements in engineering plastic tube
Thermal Cut-Outs	2 (electromechanical, 50°C ±3°C)
Recommended RCD	30mA or less

🔌 Output & Connection Specifications

High Voltage AMP Socket Outputs

Output	Maximum Rating	Notes
Pump 1A	220-240V AC, 10A	Single or dual-speed pump
Pump 1B	220-240V AC, 10A	Single-speed only (when Pump 1A is single-speed)
Pump 2A	220-240V AC, 10A	Single or dual-speed pump
Pump 2B	220-240V AC, 10A	Single-speed only (when Pump 2A is single-speed)
Auxiliary (AUX)	220-240V AC, 10A	Single-speed pump, blower, or other load
SPVSB	220-240V AC, 7.5A	Davey Variable Speed Blower only
Circulation Pump	220-240V AC, 2.5A	24-hour circulation pump
Ozone	220-240V AC, 2.0A	Ozonator connection

Low Voltage Internal Sockets

Connection	Quantity	Notes
Touchpad Sockets	2	Main and optional secondary touchpad
LED Light Sockets	4	Davey SPVCL or SPCL LED lights (up to 60 daisy-chained point lights)
In-Pool Temp Sensor	1	Standard fitment on SP1200
12V DC Light Output	1	Switched output for third-party LED lights (1A max)
Variable Speed Blower Control	1	For SPVSB speed control

Sensor Inputs

Sensor	Type	Notes
In-Heater Temperature Sensor	Digital	Factory fitted in heater assembly
In-Pool Temperature Sensor	Digital	Standard with SP1200 for precise temperature control
Water Sensor	Optical	Detects water presence for dry-fire protection
Thermal Cut-Outs	Electromechanical (x2)	Trip at 50°C ±3°C, reset at approximately 40°C

🔗 Compatibility

Compatible Topside Panels

Panel Model	Compatible	Notes
SP1200 Oval Touchpad	✅ Yes	Standard touchpad with multicolour LED backlighting
SP1200 Narrow Oval Touchpad	✅ Yes	Compact alternative for smaller mounting areas
SP1200 Rectangular Touchpad	✅ Yes	Alternative format, ideal for retrofit applications
SP1200 Secondary Touchpad	✅ Yes	Optional reduced-function poolside control

⚠️ Important: The SP1200 requires SP1200-specific touchpads. SP800 or SP601 touchpads are not compatible.

Compatible Spa Brands

Brand	Compatible	Notes
Roto Spas	✅ Yes	Common OEM fitment
Monarch Spas	✅ Yes	Common OEM fitment
Sapphire Spas	✅ Yes	Common OEM fitment
Various Swim Spas	✅ Yes	Suitable for high-demand swim spa applications
Custom Builds	✅ Yes	Suitable for DIY and custom spa installations

Replacement Compatibility

⚠️ This control box is designed for:

• Direct replacement of existing SP1200-35 systems
• Upgrade from SP800 systems requiring additional pump outputs
• New installations requiring high-capacity control

Note: Compatibility depends on your specific spa configuration. Contact Parts4Tubs for advice on whether this control box suits your system.

📐 Physical Specifications

Specification	Value
Control Box Height	310mm
Control Box Width (Housing)	330mm
Heater Tube Width	356mm (without connections)
Control Box Depth	90mm
Weight	4.2kg
Plumbing Connections	2″ (50mm) socket union sleeves
Enclosure Type	Splash-proof with ventilation
IP Rating	IPX4 (when installed within spa cabinet)
Mounting	External feet and brackets (glue-in installation)

🛡️ Safety Features

Safety Feature	Specification
Thermal Cut-Outs	2 x electromechanical devices, trip at 50°C ±3°C
Water Detection	Optical water sensor – no moving parts, robust design
Overtemperature Protection	Digital sensor triggers Error 5 at 45°C or above
Dry-Fire Protection	Heater disabled when water not detected (Error 1)
Stuck Relay Detection	Error 7 indicates heater control circuitry fault
Stuck Button Detection	Error 3 prevents continuous unintended operation

Certifications

Certification	Status
RoHS Compliant	✅ Yes
Quality System	ISO 9001 (Davey Head Office & Manufacturing)
Environmental System	ISO 14001 (Davey Head Office & Manufacturing)

💻 Programming & Features

Control Features

• Automatic temperature regulation with adjustable hysteresis
• Programmable filtration cycles with adjustable duration and frequency
• Nine user-configurable alarms for scheduled reminders
• Nine programmable sleep periods for energy-efficient operation
• Automatic pump purging to prevent water stagnation
• Economy and standard heating modes
• Light synchronisation with variable colour LED systems
• Programmable load shedding for current management

Programming Capabilities

Feature	Specification
Temperature Range	10.00°C to 41.50°C
Temperature Adjustment	0.25°C increments
Default Set Temperature	37°C
Filtration Settings	Adjustable time and period
Default Filtration	10 minutes every hour
Sleep Periods	Up to 9 programmable periods
Default Sleep Time	11:00pm to 7:00am daily
User Alarms	9 programmable alarms with weekday selection
Maintenance Timers	9 configurable reminders (1-255 weeks)

Diagnostic Features

Feature	Description
Error Code Display	Visual and audible error indication (Errors 1-9)
LED Indicators	Touchpad LCD shows operational status
Self-Diagnostics	Automatic fault detection with specific error codes
Software Version Display	Accessible via diagnostic menu
DIP Switch Status	Viewable through diagnostic display
Temperature Sensor Readings	Real-time monitoring via diagnostics

🛠️ Installation Requirements

Pre-Installation Checklist

• [ ] Qualified electrician engaged for all electrical work
• [ ] Electrical supply meets 220-240V AC or 380-415V AC requirements
• [ ] Appropriate RCD/GFCI (30mA or less) installed
• [ ] Dedicated circuit available for spa installation
• [ ] System load calculated using Davey Loading Calculator
• [ ] Control box mounting location within spa cabinet identified
• [ ] Plumbing configuration confirmed compatible

Electrical Requirements

Requirement	Specification
Supply Voltage (Single Phase)	220-240V AC
Supply Voltage (Three Phase)	380-415V AC
Circuit Breaker (Single Phase)	Sized for maximum system load (up to 40A)
Circuit Breaker (Three Phase)	Up to 16A per phase
RCD/GFCI	30mA or less on dedicated circuit
Dedicated Circuit	✅ Required

Plumbing Requirements

Requirement	Specification
Heater Connection	50mm socket union sleeves (hand tighten only)
Water Flow Direction	Left to right (horizontal) or bottom to top (vertical)
Vertical Mounting	Water sensor must be positioned at top

Connection Information

⚠️ Refer to manufacturer wiring diagram and installation manual for all connections.

⚠️ All electrical work must comply with BS 7671 (IET Wiring Regulations) in the UK.

⚠️ Spa electrical installations in the UK require Part P certification.

⚠️ Equipotential bonding to steel reinforcement in concrete bases is recommended per AS/NZS3000:2007 or EN60364.

⚠️ Three-phase connection requires removal of factory-fitted jumper leads. Refer to installation manual.

🔍 Troubleshooting & Error Codes

Common Error Codes

Code	Meaning	Possible Cause
Error 1 (H2O)	Prime Failed – No water detected	Low water level, air in heater tube, blocked filter, water sensor fault
Error 3	Stuck Button	Touchpad damage, water ingress, cable fault
Error 4	No Water Sensor	Sensor disconnected or damaged
Error 5	Overtemperature	Water temperature exceeded 45°C
Error 6	Thermal Cutout Tripped	Heater overheated – insufficient water flow
Error 7	Stuck Relay	Heater control circuitry fault
Error 8	No Temperature Data	Temperature sensor disconnected or faulty
Error 9	Real Time Clock	Internal clock malfunction

General Troubleshooting Tips

⚠️ Always disconnect power before inspecting control box.

⚠️ To reset latching errors (3-8): Press Light Level, Light Effect Mode, Pump 1A, and Pump 2A buttons simultaneously.

⚠️ Contact Parts4Tubs or a qualified spa technician for repairs.

Part Number: Q1200-35 / BX-Q1200

Alternative Part Numbers: Q120035PH

Heater Only Part Number: Q80064T

🎯 Ideal Applications

Application	Suitability	Notes
🏠 Home hot tub	✅ Excellent	Ideal for large domestic spas with multiple pump zones
🏠 Garden spa	✅ Excellent	Superior configuration options for feature-rich installations
🏊 Swim spa	✅ Excellent	Designed for high-demand swim spa applications
🏢 Holiday let	✅ Excellent	Secondary touchpad option for user-friendly operation
🏢 Commercial	✅ Excellent	Robust design suitable for commercial spa environments
🔄 Replacement/Upgrade	✅ Excellent	Direct replacement for SP1200 systems or upgrade from SP800

❓ Frequently Asked Questions

Q: Will this control box work with my spa? A: The SP1200 3.5kW is designed for large spa pools and swim spas requiring multiple pump configurations and enhanced heating capacity. Compatibility depends on your spa’s electrical requirements and component setup. Contact Parts4Tubs with your spa model details for confirmation.

Q: Do I need a qualified electrician to install this? A: Yes. All spa control box installations must be performed by a qualified electrician in compliance with BS 7671 (IET Wiring Regulations) and Part P certification requirements in the UK.

Q: What topside panel does this work with? A: The SP1200 requires SP1200-specific touchpads only. Compatible options include the SP1200 Oval Touchpad, SP1200 Narrow Oval Touchpad, SP1200 Rectangular Touchpad, or SP1200 Secondary Touchpad. SP800 and SP601 touchpads are not compatible.

Q: What is the difference between SP800 and SP1200? A: The SP1200 offers additional Pump 2A and Pump 2B outputs (allowing up to four pumps), dual heater elements with two thermal cut-outs, higher heater output options (3.5kW, 4.5kW, 6.0kW), and includes the in-pool temperature sensor as standard. The SP1200 is designed for larger spa pools and swim spas.

Q: Can this be connected to three-phase power? A: Yes. The SP1200 3.5kW model can be configured for three-phase 380-415V operation by removing the factory-fitted jumper leads. Refer to the installation manual for detailed instructions.

Q: What warranty is included? A: Please refer to manufacturer documentation or contact Parts4Tubs for current warranty terms.

Q: Does this include a topside panel? A: This listing is for the control box with integrated heater only. Touchpad sold separately – please add to your order if required.

Q: Can I control up to four pumps with this system? A: Yes. The SP1200 supports Pump 1A (single or dual-speed), Pump 1B (single-speed when 1A is single-speed), Pump 2A (single or dual-speed), and Pump 2B (single-speed when 2A is single-speed), plus optional circulation pump and auxiliary outputs.

📥 Downloads & Resources

📄 SP800 & SP1200 Installation & Service Manual – Technical installation and service documentation

🏆 Why Choose the Davey Spa Power SP1200 3.5kW

✅ Superior Heating Performance – Dual 3.5kW heating elements provide faster heat-up times and better temperature maintenance for large spa volumes

✅ Expanded Pump Capacity – Four pump outputs plus auxiliary and circulation pump support for complex spa configurations

✅ Enhanced Safety – Dual thermal cut-outs and comprehensive error diagnostics protect equipment and users

✅ In-Pool Temperature Sensor Standard – Precise temperature control without additional purchase

✅ Three-Phase Capability – Configurable for single or three-phase power supply to suit installation requirements

✅ Quality Construction – Fluoropolymer-coated heating elements and splash-proof enclosure engineered for reliability

✅ Proven Technology – Manufactured by Davey Water Products with ISO 9001 quality management certification

🤝 Why Buy from Parts4Tubs

✅ UK-based company with local telephone support on 01604 969 202

✅ Fast UK delivery – same working day dispatch on orders received before 2pm

✅ Expert advice from spa specialists – buy from a person, not just the internet

✅ Competitive pricing with VAT included

✅ Full warranty support on all products

✅ Easy returns – see our returns policy for details

✅ Compatible components and accessories available – touchpads, sensors, and replacement parts in stock

✅ Technical support for installation queries

🌟 Summary

The Davey Spa Power SP1200 3.5kW Control Box delivers high-end spa management with dual-element heating technology and expanded pump control for demanding applications. Featuring 220-240V AC single-phase or 380-415V AC three-phase operation with 40A maximum single-phase capacity, this professional-grade controller supports up to four pumps across Pump 1 and Pump 2 outputs, plus circulation pump and auxiliary connections.

With comprehensive outputs for variable speed blowers, ozonators, and up to four LED lights (or 60 daisy-chained point lights), plus advanced safety features including dual thermal cut-outs and optical water sensing, the SP1200 3.5kW provides dependable performance for large domestic hot tubs, swim spas, and commercial spa environments. The standard in-pool temperature sensor ensures precise temperature regulation. Compatible with SP1200 oval and rectangular touchpads, this Davey control system represents trusted quality backed by ISO 9001 certified manufacturing.

Order today from Parts4Tubs for fast UK delivery and expert support.