Astral Pool Pro Elyo Touch PET-35T – 35kW Three-Phase Inverter Pool Heat Pump 🌊

Transform your large swimming pool into a year-round oasis with the Astral Pool Pro Elyo Touch PET-35T – a premium three-phase inverter heat pump engineered for superior performance, whisper-quiet operation, and exceptional energy efficiency. With 35kW heating capacity and advanced Full Inverter Technology, this heat pump delivers rapid, reliable heating even in temperatures as low as -20°C, making it ideal for large residential pools and commercial installations.

Why Choose the Pro Elyo Touch PET-35T? ✅

The Pro Elyo Touch PET-35T stands out as the ultimate heating solution for pool owners who demand power, efficiency, and smart control. Whether you manage a hotel pool, fitness center, or luxury residential installation, this heat pump combines cutting-edge technology with robust construction to deliver exceptional performance year after year.

Perfect for:

• Large residential pools (80-150m³)
• Commercial swimming facilities
• Hotels and leisure centers
• High-usage family pools
• Saltwater and chlorine pools
• Year-round swimming enthusiasts

🌟 Key Features & Benefits

🔄 Full Inverter Technology – Maximum Efficiency

Unlike traditional on/off heat pumps, the Pro Elyo Touch features Full Inverter Technology that continuously adjusts compressor and fan speeds to match your exact heating needs. This intelligent system delivers:

• Up to 70% quieter operation than conventional models
• 20-30% lower energy consumption
• Smoother temperature control with fewer fluctuations
• Extended equipment lifespan through reduced wear
• Coefficient of Performance (COP) up to 16 at optimal conditions

🎯 Three Smart Operating Modes

Customize performance to suit your needs with three intelligent heating modes:

⚡ Boost Mode – Maximum power for rapid heating when you need it fast (perfect for spring pool opening or after cold spells)

🧠 Smart Mode – Balanced performance that optimizes efficiency and heating speed for everyday use

🔇 Silent Mode – Ultra-quiet operation ideal for nighttime heating or noise-sensitive environments (as low as 42dB at 1 meter)

❄️ All-Season Performance

Engineered to operate in extreme conditions from -20°C to +43°C, this heat pump ensures your pool stays warm even during harsh winters. Automatic defrosting prevents ice buildup, maintaining efficiency in freezing temperatures.

📱 Smart Control & Connectivity

The intuitive LED touchscreen provides effortless control at your fingertips, while optional iQBridge RS connectivity unlocks remote control via the iAquaLink®+ mobile app:

• Adjust temperature from anywhere
• Monitor performance and energy usage
• Schedule heating times
• Receive maintenance alerts
• Control multiple parameters remotely

🌊 Built for Durability

Designed to withstand harsh pool environments:

• Titanium heat exchanger – Fully compatible with saltwater pools and resistant to corrosion
• ABS plastic casing with galvanized steel grille – Superior weather resistance
• IPX4 protection rating – Safe in wet outdoor conditions
• Anti-vibration feet included – Reduces noise and protects installation surface
• 4.2MPa pressure rating – Industrial-strength construction

📋 Complete Technical Specifications

Performance Data

Specification	Value
Model	PET-35T
Part Number	74175
Heating Capacity (Max-Min)	35 – 8 kW
Power Consumption (Max-Min)	5.9 – 0.5 kW
COP (Max-Min)	6 – 16
Voltage	380-400V / 3N~ / 50Hz
Rated Current	8.4A
Minimum Circuit Breaker	13A

Operating Conditions

Condition	Air 28°C, Water 28°C	Air 15°C, Water 26°C
Heating Capacity (Max-Min)	35 – 8 kW	25.0 – 5.5 kW
Power Consumption	5.9 – 0.5 kW	5.4 – 0.7 kW
COP	6 – 16	4.5 – 8

Physical & Installation Specifications

Specification	Value
Advised Water Flow	13 m³/h
Water Connection	50mm
Noise Level (at 1m)	42-60 dB(A)
Protection Rating	IPX4
Maximum Pressure	4.2 MPa
Net Weight / Gross Weight	140kg / 158kg
Refrigerant Type	R410A
Refrigerant Quantity	4kg
GWP (Global Warming Potential)	2088
CO₂ Equivalent	8.36 tonnes

📄 Downloads & Documentation

Important Note: For optimal installation and operation, please request the following documents from your supplier:

📥 Installation Manual – Complete installation guide with electrical diagrams, plumbing specifications, and clearance requirements

💡 Contact parts4tubs.co.uk customer service to obtain these essential documents

🏊 Pool Sizing & Heat-Up Time Estimates

Recommended Pool Sizes

The PET-35T is engineered for large pools between 80-150m³ (80,000-150,000 litres). For optimal performance and efficiency, consider these guidelines:

Pool Volume	Suitability	Recommended Use
60-80m³	✅ Excellent	Rapid heating, ideal for frequent use
80-100m³	✅ Excellent	Perfect match, optimal efficiency
100-120m³	✅ Very Good	Well-suited, balanced performance
120-150m³	✅ Good	Adequate heating, may require longer run times
150m³+	⚠️ Marginal	Consider multiple units or larger model

Estimated Heat-Up Times ⏱️

These estimates help you plan your pool heating schedule. Actual times may vary based on ambient temperature, pool insulation, wind exposure, and cover usage.

Formula Used: Time (hours) = (Pool Volume in m³ × Temperature Rise in °C × 1.16) ÷ Heat Pump kW Rating

Standard Conditions (Air 15°C, Average Performance: 25kW)

Pool Volume	5°C Rise	10°C Rise	15°C Rise
80m³ (80,000L)	18.5 hours	37 hours	55.5 hours
100m³ (100,000L)	23 hours	46 hours	69 hours
120m³ (120,000L)	28 hours	56 hours	83 hours
150m³ (150,000L)	35 hours	70 hours	104 hours

Optimal Conditions (Air 28°C, Maximum Performance: 35kW)

Pool Volume	5°C Rise	10°C Rise	15°C Rise
80m³ (80,000L)	13 hours	26.5 hours	40 hours
100m³ (100,000L)	16.5 hours	33 hours	50 hours
120m³ (120,000L)	20 hours	40 hours	60 hours
150m³ (150,000L)	25 hours	50 hours	75 hours

💡 Heat-Up Tips:

• Use a pool cover to reduce heat-up time by 30-50%
• Run in Boost Mode for faster initial heating
• Heat during warmer daytime hours for better efficiency
• Allow 24-48 hours of continuous operation for initial spring heating
• Once at temperature, maintenance heating requires just 2-4 hours daily

💰 Running Costs & Energy Efficiency

Why Inverter Technology Saves Money

Traditional heat pumps run at full power constantly (on/off cycling), while the Pro Elyo Touch’s Full Inverter Technology modulates power output, delivering significant savings:

Aspect	Traditional Heat Pump	Pro Elyo Touch Inverter
Average Power Draw	6-7 kW	3-5 kW (variable)
Daily Running (4hrs)	24-28 kWh	12-20 kWh
Monthly Cost (£0.24/kWh)	£172-£200	£86-£144
Annual Savings	—	£300-£600+
Noise Level	55-65 dB(A)	42-52 dB(A)

Seasonal Performance

Spring/Autumn (Air 10-15°C):

• COP: 4.0-4.5 – Every 1kW of electricity produces 4-4.5kW of heat
• Typical daily cost: £3-5 (4 hours operation)

Summer (Air 20-28°C):

• COP: 5.5-6.5 – Every 1kW produces 5.5-6.5kW of heat
• Typical daily cost: £2-4 (2-3 hours maintenance)

Winter (Air 0-10°C):

• COP: 3.0-3.5 – Every 1kW produces 3-3.5kW of heat
• Typical daily cost: £5-8 (extended operation needed)

💡 Energy Saving Tip: Compared to electric resistance heating (COP of 1.0), the Pro Elyo Touch can save £1,500-£2,500 annually on heating costs for a 100m³ pool used year-round.

🔧 Installation Requirements & Clearances

Space Requirements

To ensure optimal airflow, efficiency, and serviceability:

• Front clearance: Minimum 5 meters (for airflow)
• Side clearances: Minimum 50cm each side
• Rear clearance: Minimum 30cm (for service access)
• Top clearance: Minimum 2 meters (no overhangs)
• Foundation: Level, solid concrete base or reinforced mounting pad
• Weight capacity: 200kg minimum (includes unit + accessories + snow load)

Electrical Requirements ⚡

• Three-phase power supply: 380-400V / 3N~ / 50Hz
• Minimum circuit breaker: 13A (Type C recommended)
• Dedicated circuit required: Do not share with other equipment
• Earth leakage protection: 30mA RCD recommended
• Professional installation: Three-phase electrical work must be completed by certified electrician

Plumbing Specifications 🔧

• Water connections: 50mm (2 inch) inlet/outlet
• Recommended flow rate: 13 m³/h (13,000 litres/hour)
• Bypass valve required: Essential for proper flow control
• Isolation valves: Install before and after unit for maintenance
• Water pressure: Maximum 4.2 MPa

Climate Considerations

Best placement:

• Sheltered from prevailing winds (reduces efficiency loss)
• Away from bedroom windows (noise consideration)
• Protected from direct snow/ice accumulation
• Good drainage for condensate water
• Access to three-phase power supply

📦 What’s Included in the Box

Your Pro Elyo Touch PET-35T comes complete with everything needed for professional installation:

✅ 1 × Pro Elyo Touch PET-35T Heat Pump (main unit) ✅ 1 × Winter Cover – Protects unit during extended shutdown periods ✅ 4 × Anti-Vibration Feet – Reduces operational noise and vibration ✅ Condensate Drainage Kit – Manages defrost water safely ✅ 1 × 10m Modbus Signal Wire – Connects heat pump to control system ✅ 2 × PVC Plumbing Fittings – For 50mm water connections ✅ User Manual – Complete operating and maintenance instructions

Optional Accessories (Sold Separately):

• iQBridge RS Module – For smart app connectivity
• Extended warranty plans
• Professional installation service
• Pool covers (highly recommended for efficiency)

❓ Frequently Asked Questions

1. What size pool is the PET-35T suitable for?

The PET-35T is engineered for large pools between 80-150m³ (80,000-150,000 litres). This typically corresponds to pools measuring 10m × 5m × 1.6m or similar volumes. For smaller pools (under 80m³), consider the PET-25T or PET-30T models for better efficiency and lower running costs.

2. How long does it take to heat my pool from cold?

Initial spring heat-up from 10°C to 28°C typically takes 40-70 hours for a 100m³ pool, depending on ambient temperature. With a pool cover, this can be reduced by 30-50%. Once at temperature, maintenance heating requires only 2-4 hours daily. See the Heat-Up Time Estimates table above for detailed calculations.

3. Can I use this heat pump with a saltwater pool?

Yes, absolutely! The PET-35T features a titanium heat exchanger specifically designed for saltwater compatibility. Titanium offers superior corrosion resistance compared to standard stainless steel, ensuring long-term reliability in chlorine or salt-treated pools. Maximum recommended salt concentration: 6,000 ppm.

4. How loud is the Pro Elyo Touch during operation?

The PET-35T operates at 42-60 dB(A) at 1 meter distance, depending on operating mode. In Silent Mode, noise drops to around 42 dB(A) – equivalent to a quiet library or gentle rainfall. For context:

• 40 dB = Quiet library
• 50 dB = Quiet conversation
• 60 dB = Normal conversation
• 70 dB = Vacuum cleaner

The included anti-vibration feet further reduce noise transmission to surrounding structures.

5. Does this heat pump require three-phase power?

Yes, the PET-35T is a three-phase unit requiring 380-400V / 3-phase supply. This is standard in most commercial properties and many modern residential installations. If you only have single-phase power, you’ll need:

• Professional electrician assessment
• Potential phase converter (not recommended due to efficiency loss)
• OR consider single-phase models (PET-18S, PET-23S)

Always consult a qualified electrician before purchasing.

6. Can the heat pump cool my pool in summer?

Yes! The PET-35T includes cooling mode functionality, allowing it to reduce water temperature during hot summer months. This is particularly valuable for:

• Competitive swimming (optimal race temperature: 25-27°C)
• Children’s pools (safety and comfort)
• Hydrotherapy applications
• Regions with extreme summer heat

Cooling mode operates with similar efficiency to heating mode.

7. What is COP and why does it matter?

COP (Coefficient of Performance) measures heat pump efficiency – how much heat energy you get for each unit of electricity consumed. The PET-35T achieves:

• COP up to 16 in optimal conditions (28°C ambient)
• COP 4.5-8 in moderate conditions (15°C ambient)

A COP of 6 means you get 6kW of heat for every 1kW of electricity – making heat pumps 4-6 times more efficient than electric resistance heaters. This translates to annual savings of £1,500-£2,500 for typical year-round pool use.

8. How often does the heat pump need maintenance?

Minimal maintenance required:

• Weekly: Check for debris around unit, ensure clear airflow
• Monthly: Inspect water flow, check for unusual noises
• Quarterly: Clean air filters (if equipped), inspect electrical connections
• Annually: Professional service recommended (refrigerant check, deep clean, performance test)
• Winterization: Drain water from heat exchanger if shutting down below 0°C

With proper care, expect 12-15 years of reliable operation.

9. Will the heat pump work in winter temperatures?

Yes, down to -20°C! The PET-35T features automatic defrosting that prevents ice buildup, maintaining efficiency in freezing conditions. However, performance naturally reduces in colder weather:

• At 15°C ambient: 25kW heating capacity
• At 5°C ambient: ~18-20kW heating capacity (estimated)
• At -5°C ambient: ~12-15kW heating capacity (estimated)

For winter swimming, a pool enclosure or cover significantly improves performance and reduces running costs.

10. Can I control the heat pump remotely?

Yes, with optional iQBridge RS module! This add-on enables full integration with the iAquaLink®+ mobile app (iOS/Android), allowing you to:

• ✅ Adjust temperature remotely
• ✅ Switch between operating modes
• ✅ Schedule heating times
• ✅ Monitor energy consumption
• ✅ Receive maintenance alerts
• ✅ View performance statistics

The iQBridge RS module is sold separately. Contact your supplier for availability and compatibility.

11. What warranty is included?

Astral Pool products typically include a 2-year manufacturer’s warranty covering parts and labor for defects in materials and workmanship. Extended warranty options may be available through your installer. Important: Professional installation by a certified technician is required to maintain warranty validity. DIY installation may void warranty coverage.

12. How does this compare to gas or electric pool heating?

Cost Comparison (Annual Running Costs for 100m³ Pool, Year-Round Use):

Heating Method	Efficiency	Annual Cost	Environmental Impact
Pro Elyo Touch Heat Pump	COP 4.5-6.0	£800-£1,200	⭐⭐⭐⭐⭐ Low CO₂
Gas Boiler	85-90%	£2,500-£3,500	⭐⭐ High CO₂
Electric Heater	COP 1.0	£4,000-£6,000	⭐⭐⭐ Moderate CO₂
Oil Heater	80-85%	£3,000-£4,500	⭐ Very High CO₂

Payback Period: Despite higher initial cost, heat pump savings pay for the unit in 2-4 years compared to gas heating.

✅ Installation Best Practices

Pre-Installation Checklist

Before installation, ensure you have:

🔲 Three-phase power supply verified (380-400V) 🔲 Adequate space cleared (see clearance requirements) 🔲 Level concrete pad prepared (minimum 200kg capacity) 🔲 Pool filtration system operational (heat pump requires flow) 🔲 Bypass valve installed in plumbing system 🔲 Certified electrician and plumber booked 🔲 Manufacturer’s manual reviewed (request from supplier)

Professional Installation Required ⚠️

This is a three-phase heat pump requiring specialist installation. Improper installation can result in:

• Equipment damage (voiding warranty)
• Electrical hazards (fire, shock risk)
• Poor performance and efficiency
• Premature failure
• Safety code violations

Always use:

• Certified electrician for three-phase electrical work
• Experienced pool technician for plumbing and system integration
• Manufacturer-approved installers when possible

First-Time Startup

After professional installation:

1. Check all connections – Electrical, plumbing, drainage
2. Set flow rate – Verify 13 m³/h water flow through bypass valve
3. Initial power-up – Check for error codes on LED display
4. Configure settings – Set target temperature (typically 26-28°C)
5. Select Smart Mode – For optimal first-time heating
6. Monitor for 24 hours – Check performance, noise, vibration
7. Fine-tune flow – Adjust bypass if needed for optimal performance

🌍 Environmental Credentials

Energy Efficiency & Carbon Footprint

The Pro Elyo Touch PET-35T represents a significant step toward sustainable pool heating:

CO₂ Savings vs. Gas Heating:

• Annual CO₂ reduction: 3-5 tonnes per year
• 10-year impact: Equivalent to planting 150-250 trees
• Renewable energy compatible: Works excellently with solar PV systems

Refrigerant Information:

• Type: R410A (zero ozone depletion potential)
• GWP: 2088 (moderate global warming potential)
• Sealed system: No atmospheric release under normal operation
• End-of-life recovery: Refrigerant must be professionally recovered and recycled

Energy Efficiency Class: A+++ (estimated, based on COP performance)

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🏆 Why Buy from Parts4Tubs?

✅ Authorized Astral Pool Dealer – Genuine products, full manufacturer warranty ✅ Expert Technical Support – Pre and post-sale assistance from pool heating specialists ✅ Competitive Pricing – Best value for premium pool equipment ✅ Fast UK Delivery – Quick dispatch and professional delivery service ✅ Installation Support – Nationwide installer network available ✅ Aftercare Service – Ongoing support and spare parts availability

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📞 Need Help Choosing?

Not sure if the PET-35T is right for your pool? Our team of pool heating experts can help:

📧 Email: hello@parts4tubs.co.uk 📱 Phone: [Contact for phone number] 💬 Live Chat: Available on website during business hours

We can assist with:

• Pool sizing calculations
• Heat pump model selection
• Installation recommendations
• Three-phase power assessment
• Running cost estimates
• Installer referrals

🔒 Summary: Is the Pro Elyo Touch PET-35T Right for You?

✅ Choose the PET-35T if you have:

• Large pool (80-150m³ / 80,000-150,000 litres)
• Three-phase power supply available
• Year-round or extended season swimming plans
• Commercial or high-usage residential application
• Budget for premium, energy-efficient equipment
• Need for quiet operation (residential neighborhoods)
• Saltwater pool requiring corrosion-resistant equipment

❌ Consider alternatives if you have:

• Smaller pool (under 80m³) – consider PET-25T or PET-30T
• Only single-phase power – explore single-phase models
• Limited budget – consider non-inverter models
• Minimal use (summer weekends only) – solar may be more cost-effective

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⭐ Final Verdict: The Astral Pool Pro Elyo Touch PET-35T represents the pinnacle of pool heating technology for large installations. Its combination of powerful 35kW output, whisper-quiet inverter operation, exceptional efficiency (COP up to 16), and smart connectivity make it an outstanding investment that pays for itself through energy savings while delivering year-round swimming comfort. Backed by Astral Pool’s reputation for quality and reliability, this heat pump is the smart choice for discerning pool owners who refuse to compromise on performance.