🌊 Astral Pool Pro Elyo Touch (PET-15) – 15.9kW Full Inverter Pool Heat Pump for Year-Round Swimming

Transform your pool into a year-round oasis with whisper-quiet, energy-efficient heating that works even in freezing conditions.

The Astral Pool Pro Elyo Touch (PET-15) is a next-generation inverter heat pump engineered for serious pool owners who refuse to let the weather dictate their swimming season. With a powerful 15.9 kW heating capacity and intelligent Full Inverter Technology, this premium heat pump delivers exceptional performance while slashing your energy bills by up to 80% compared to traditional electric heaters.

Unlike conventional on/off heat pumps that cycle noisily and waste energy, the PET-15 continuously adjusts its compressor and fan speeds to match your pool’s exact heating needs. The result? Remarkably quiet operation (as low as 40dB), outstanding efficiency with a COP of up to 16, and reliable heating even when outdoor temperatures plunge to -20°C.

Whether you’re heating a medium-sized family pool or a larger residential installation, the PET-15 combines proven AstralPool quality with smart features like an intuitive LED touchscreen, three intelligent operating modes, and optional WiFi connectivity for complete control from your smartphone.

🎯 Who Is This Heat Pump Perfect For?

✅ Pool owners with 28-85m³ (25,000-75,000 litre) pools
✅ Year-round swimmers who want reliable heating in all seasons
✅ Eco-conscious families seeking maximum energy efficiency
✅ Noise-sensitive properties requiring ultra-quiet operation
✅ Saltwater pool owners needing corrosion-resistant equipment
✅ Tech-savvy users wanting smart remote control capabilities

⚡ Key Features That Set the PET-15 Apart

Full Inverter Technology – The Game Changer

Unlike basic heat pumps that run at fixed speeds, the PET-15 uses advanced inverter technology to continuously vary its compressor and fan speeds. This means:

• Up to 80% lower running costs compared to electric heaters
• Whisper-quiet operation – from just 40dB (quieter than a refrigerator)
• Faster heating with intelligent power adjustment
• Extended lifespan due to reduced mechanical stress
• Exceptional COP of 16 in optimal conditions (delivering 16kW of heat for every 1kW of electricity)

Three Intelligent Operating Modes

🚀 Boost Mode – Maximum Power
Perfect for the start of the season or after heavy pool use. Ramps up to full 15.9kW capacity for rapid temperature recovery. Get your pool swim-ready fast.

🧠 Smart Mode – Balanced Performance
The everyday hero. Automatically balances heating speed with energy efficiency, adjusting power levels based on your pool’s needs. Set it and forget it.

🤫 Silent/Ecosilence Mode – Ultra-Quiet Operation
Ideal for overnight heating or noise-sensitive times. Reduces power to minimize sound while maintaining steady temperature. Perfect for residential areas with close neighbours.

All-Weather Reliability

Most heat pumps struggle or stop working when temperatures drop. Not the PET-15. With its advanced defrost system and robust R32 refrigerant, this unit operates effectively in ambient temperatures from -20°C to +43°C. That means reliable pool heating even during harsh winters or early spring.

Built to Last

• Titanium heat exchanger – Completely resistant to saltwater corrosion
• ABS plastic body – Weatherproof and UV-resistant
• IPX4 protection rating – Safe operation in all outdoor conditions
• Anti-vibration feet included – Stable, quiet mounting
• Galvanized steel protection grille – Guards evaporator from damage

Smart Control & Connectivity

• LED touchscreen display – Crystal-clear interface with intuitive controls
• Heating priority mode – Automatically manages your filtration pump
• Timer function – Schedule heating during off-peak electricity hours
• Optional iQBridge RS module – Connect to Fluidra Connect for smartphone control (sold separately)
• Automatic defrost – Maintains efficiency in cold conditions

📊 Complete Technical Specifications

Specification	Value
Model	PET-15
Part Number	74169
Heating Capacity (Max-Min)	15.9 – 3.0 kW
Power Consumption (Max-Min)	2.6 – 0.2 kW
COP (Max-Min)	6 – 16
Voltage	220-240V / 1N~ / 50Hz
Rated Current	9.2A
Minimum Circuit Breaker	14A
Recommended Pool Volume	28-85 m³ (25,000-75,000 litres)
Advised Water Flow Rate	7 m³/h
Water Connection	50mm (2″)
Noise Level at 1m (Max-Min)	40-54 dB(A)
Noise Level at 10m	≤ 43 dB(A)
Protection Rating	IPX4 (splash-proof)
Operating Temperature Range	-20°C to +43°C ambient
Maximum Water Pressure	4.2 MPa
Refrigerant Type	R32
Refrigerant Quantity	1.1 kg
Global Warming Potential (GWP)	675
CO₂ Equivalent	0.74 tonnes
Dimensions (L × W × H)	1050 × 450 × 870 mm
Net Weight	82 kg
Gross Weight (Packaged)	87 kg

Performance at Different Conditions

Optimal Conditions (Air 28°C, Water 28°C, Humidity 80%):

• Heating Capacity: 15.9 – 3.0 kW
• Power Consumption: 2.6 – 0.2 kW
• COP: 6 – 16

Standard Conditions (Air 15°C, Water 26°C, Humidity 70%):

• Heating Capacity: 11.0 – 2.5 kW
• Power Consumption: 2.5 – 0.3 kW
• COP: 4.5 – 8

Cold Conditions (Air 0°C, Water 26°C, Humidity 78%):

• Heating Capacity: 7.4 – 4.1 kW
• Power Consumption: 2.64 – 0.91 kW
• COP: 4.5 – 2.8

Extreme Cold (Air -10°C, Water 26°C, Humidity 78%):

• Heating Capacity: 5.8 – 3.6 kW
• Power Consumption: 2.64 – 0.92 kW
• COP: 3.9 – 2.2

🏊 Pool Sizing Guide – Is the PET-15 Right for Your Pool?

Pool Volume	Pool Size (Approx.)	Suitability	Expected Performance
25-35 m³	6m × 3m × 1.5m	⭐⭐⭐ Excellent	Rapid heating, easy temperature maintenance
35-50 m³	8m × 4m × 1.5m	⭐⭐⭐ Excellent	Ideal match, efficient operation
50-65 m³	10m × 4m × 1.5m	⭐⭐ Good	Adequate heating, longer initial heat-up
65-85 m³	11m × 5m × 1.5m	⭐ Suitable	Works well for maintenance, slower initial heating
85+ m³	Larger pools	⚠️ Consider PET-19 or PET-25	Underpowered for optimal performance

💡 Pro Tip: For pools above 70m³, consider the PET-19 (19.8kW) for faster heating and better efficiency. For pools below 30m³, the PET-13 (13.5kW) may offer better value.

⏱️ Heat-Up Time Estimates

How quickly will the PET-15 heat my pool?

These estimates use the formula: Time (hours) = (Pool Volume in m³ × Temperature Rise in °C × 1.16) ÷ Heat Pump kW Rating

Heat-Up Times for Common Pool Sizes

Pool Volume	Temperature Rise	Estimated Time (Smart Mode ~11kW)	Estimated Time (Boost Mode ~16kW)
30 m³	5°C (20°C → 25°C)	15-16 hours	11-12 hours
30 m³	10°C (15°C → 25°C)	30-32 hours	22-24 hours
40 m³	5°C (20°C → 25°C)	21-22 hours	15-16 hours
40 m³	10°C (15°C → 25°C)	42-44 hours	30-32 hours
50 m³	5°C (20°C → 25°C)	26-28 hours	18-20 hours
50 m³	10°C (15°C → 25°C)	53-55 hours	37-40 hours
60 m³	5°C (20°C → 25°C)	32-34 hours	22-24 hours
60 m³	10°C (15°C → 25°C)	63-66 hours	45-48 hours
80 m³	5°C (20°C → 25°C)	42-44 hours	29-31 hours
80 m³	10°C (15°C → 25°C)	84-87 hours	58-62 hours

Temperature Maintenance After Initial Heat-Up

Pool Volume	Daily Heat Loss (with cover)	Running Time to Maintain Temp
30-40 m³	1-2°C	2-4 hours/day
40-60 m³	1-2°C	3-5 hours/day
60-80 m³	1-2°C	4-6 hours/day

⚠️ Important Disclaimers:
These are estimates based on ideal conditions. Actual heat-up times vary significantly based on:

• Ambient air temperature (lower temps = slower heating)
• Wind exposure (increases heat loss)
• Pool cover usage (dramatically improves efficiency)
• Starting water temperature
• Pool insulation and location
• Filtration pump flow rate
• Sun exposure during daytime

💡 Real-World Tip: Using a good quality pool cover can reduce heat-up times by 30-50% and cut ongoing running costs by up to 60%. It’s the single most cost-effective investment you can make.

💰 Running Costs vs. Alternative Heating Methods

Based on a 50m³ pool heated from 15°C to 26°C (11°C rise) with UK average electricity costs (£0.28/kWh as of 2025)

Initial Heat-Up Cost Comparison

Heating Method	Power Used	Time Required	Total Energy	Total Cost
PET-15 Heat Pump	11kW (avg)	53 hours	583 kWh	£163 ⭐
Electric Heater 12kW	12kW	53 hours	636 kWh	£178
Gas Boiler (85% eff)	36kW equiv	18 hours	760 kWh gas	£60 (gas at £0.08/kWh)
Oil Boiler (80% eff)	35kW equiv	19 hours	800 kWh oil	£96 (oil at £0.12/kWh)

Annual Running Cost Comparison (6-month season, maintaining 26°C)

Heating Method	Daily Energy	Days of Use	Total Energy	Annual Cost
PET-15 Heat Pump	8 kWh	180 days	1,440 kWh	£403 ⭐⭐⭐
Electric Heater	40 kWh	180 days	7,200 kWh	£2,016
Gas Boiler	25 kWh gas	180 days	4,500 kWh gas	£360
Solar Heating	0 kWh	180 days	0 kWh	£0 (but £3,000-£6,000 upfront)

💡 Key Insights:

• The PET-15 typically pays for itself within 2-4 years compared to electric heating
• 5-6 times cheaper to run than standard electric heaters during the season
• Gas is cheaper for rapid initial heat-up but similar annual costs when including boiler maintenance
• Solar is free to run but expensive upfront and only works in sunshine
• The heat pump offers the best balance of performance, cost, and reliability

🌟 Pro Tip: Run your PET-15 during off-peak electricity hours (typically 00:00-07:00 and 12:00-16:00 depending on your tariff) to save an additional 40-60% on running costs. The built-in timer makes this effortless.

📦 What’s Included in the Box

Your PET-15 arrives complete with everything you need for installation:

✅ 1 × Astral Pool Pro Elyo Touch PET-15 Heat Pump Unit
✅ 1 × Winter Protective Cover – Keep your investment safe during off-season
✅ 4 × Anti-Vibration Feet – For stable, quiet operation
✅ 1 × Condensate Drainage Kit – Proper water management
✅ 1 × 10m Modbus Signal Wire – For connecting to smart control systems
✅ 2 × PVC Water Connection Fittings (50mm) – Professional-grade plumbing connections
✅ Complete User Manual – Detailed operating and installation instructions

Not Included (Available Separately):

• By-pass kit (highly recommended for winter drainage and flow control)
• iQBridge RS module (for smartphone app control via Fluidra Connect)
• Electrical installation (must be completed by qualified electrician)

🔧 Installation Requirements & Clearances

Minimum Installation Clearances

For optimal performance and serviceability, maintain these clearances:

Side	Minimum Clearance
Air Intake (Front)	3 metres clear space
Air Outlet (Top)	2 metres clear space
Left Side	0.3 metres (300mm)
Right Side	0.3 metres (300mm)
Rear	0.5 metres (500mm)

Installation Location Best Practices:

• ✅ Well-ventilated outdoor area with good air circulation
• ✅ Level, stable concrete or paving base
• ✅ Protected from direct wind exposure where possible
• ✅ Away from windows, doors, and neighbouring properties (noise consideration)
• ✅ Close to pool filtration system (within 10m ideally)
• ✅ Accessible for annual maintenance
• ❌ Never install in enclosed spaces or indoors
• ❌ Avoid locations where discharged cold air recirculates to the intake
• ❌ Don’t place directly under bedroom windows

Electrical Requirements

⚡ Critical Safety Information:

• Voltage: 220-240V single phase, 50Hz
• Circuit Breaker: Minimum 14A (16A recommended)
• RCD Protection: 30mA differential protection mandatory
• Dedicated Circuit: Must be on its own protected circuit
• Cable: Minimum 2.5mm² (consult table below for longer runs)
• Earth Connection: Proper earthing is essential

Maximum Cable Run Lengths by Cross-Section:

Cable Size	Max Length from Consumer Unit
2.5 mm²	43 metres
4 mm²	68 metres
6 mm²	100 metres
10 mm²	170 metres

⚠️ Warning: Electrical installation MUST be performed by a qualified, registered electrician in accordance with current wiring regulations. Incorrect installation will void warranty and may cause injury or death.

Plumbing Requirements

• Water Connections: 50mm (2″) diameter
• Flow Rate: 7 m³/h recommended
• By-pass Installation: Strongly recommended for:
  • Winter drainage (prevents freeze damage)
  • Flow rate adjustment
  • Heat pump isolation for servicing
  • System balancing
• Water Chemistry: Compatible with all sanitization methods including saltwater
• Filtration Pump: Must provide adequate flow rate; heat pump will not operate without water flow

💡 Installation Tip: Always install the heat pump after your pool filter in the return line, and before any chemical dosing equipment. This protects the heat exchanger and ensures optimal performance.

🌟 Why Choose the Astral Pro Elyo Touch PET-15?

Proven AstralPool Quality

AstralPool (Fluidra Group) is one of the world’s leading pool equipment manufacturers with over 45 years of innovation. The Pro Elyo Touch represents their flagship residential heat pump technology, trusted by pool professionals globally.

Outstanding Efficiency Saves Money

With a COP of up to 16, the PET-15 delivers £16 worth of heat for every £1 of electricity. This exceptional efficiency means:

• Dramatically lower running costs than electric heaters
• Smaller carbon footprint for eco-conscious families
• Extended swimming season without breaking the bank
• Faster return on investment

Whisper-Quiet Operation

Operating from just 40dB at minimum speed, the PET-15 is quieter than:

• A quiet library (40dB)
• A refrigerator (40-45dB)
• Quiet rural area at night (30-40dB)

Even at maximum power, it only reaches 54dB – about the volume of a normal conversation. Your neighbours will never know it’s running.

True All-Season Performance

While competitors’ heat pumps struggle or stop entirely below 5°C, the PET-15 continues heating effectively down to -20°C ambient temperature. This means:

• ✅ Early spring swimming (March-April)
• ✅ Extended autumn season (until November)
• ✅ Year-round heating in mild climates
• ✅ Reliable performance during unseasonably cold spells

Built for British Weather

Designed and tested for challenging European climates, the PET-15 handles:

• Heavy rain (IPX4 splash-proof rated)
• Strong winds (robust construction)
• Freeze/thaw cycles (automatic defrost)
• High humidity (weather-resistant materials)
• Salty coastal air (titanium heat exchanger)

Smart Features, Simple Operation

The intuitive LED touchscreen puts complete control at your fingertips:

• Crystal-clear temperature display
• Easy mode selection (Boost/Smart/Silent)
• Programmable timer for off-peak savings
• Real-time system status
• Simple lockout function (child safety)

Optional smartphone control via Fluidra Connect lets you adjust settings from anywhere.

Peace of Mind Protection

• Titanium heat exchanger – Lifetime corrosion protection
• Multi-point safety system – High/low pressure protection, flow detection, thermal sensors
• Automatic defrost – Maintains efficiency in cold weather
• Water flow interlock – Won’t operate without proper circulation
• Built-in diagnostics – Clear error codes for easy troubleshooting

❓ Frequently Asked Questions

General Operation

Q: How does a heat pump work, and why is it so efficient?
A: A heat pump doesn’t generate heat – it transfers it. It extracts heat energy from the ambient air (even cold air contains heat energy) and concentrates it into your pool water. For every 1kW of electricity used, it can transfer 6-16kW of heat, making it 600-1600% efficient. This is why running costs are so much lower than electric heaters that convert 1kW of electricity into 1kW of heat (100% efficient).

Q: Will the PET-15 really work when it’s freezing outside?
A: Yes! The PET-15 is rated to operate down to -20°C ambient temperature. However, performance does decrease as temperatures drop. At 0°C, it still delivers 7.4kW of heating with a COP of 4.5. At -10°C, it provides 5.8kW with a COP of 3.9. The automatic defrost system prevents ice buildup on the evaporator, ensuring continuous operation.

Q: Should I run the heat pump continuously or turn it off between uses?
A: For best efficiency during the swimming season, leave it running in Smart Mode to maintain your desired temperature. The inverter technology means it automatically reduces power when less heating is needed, so you’re not wasting energy. It’s more efficient to maintain temperature than repeatedly heat from cold. Use the timer function to schedule operation during off-peak electricity hours for maximum savings.

Q: How noisy is it really? Will it annoy my neighbours?
A: The PET-15 is remarkably quiet, especially compared to older heat pumps. In Silent Mode, it operates at just 40dB (quieter than a refrigerator). In Smart Mode, expect 45-50dB (similar to a quiet conversation). Only in full Boost Mode does it reach 54dB (normal conversation level). For context, most people consider anything under 50dB “very quiet.” Position the unit thoughtfully during installation, and use Silent Mode during evening/night hours if noise is a concern.

Q: Can I use this heat pump with a saltwater pool?
A: Absolutely! The PET-15 features a titanium heat exchanger specifically designed for saltwater pools. Titanium is completely resistant to chloride corrosion, making this heat pump ideal for salt chlorinated pools. Just ensure the heat pump is installed in the return line before any salt chlorinator or chemical dosing equipment.

Sizing & Performance

Q: My pool is 45m³ (45,000 litres). Is the PET-15 the right size?
A: Yes, the PET-15 is well-suited to a 45m³ pool. It falls right in the middle of the recommended 28-85m³ range. You can expect efficient performance, reasonable heat-up times (around 3-4 days for a full 10°C temperature rise in moderate weather), and excellent temperature maintenance once at desired temperature.

Q: How long will it take to heat my pool at the start of the season?
A: This depends on your pool volume, starting temperature, and ambient conditions. As a rough guide for a 50m³ pool heated from 15°C to 26°C (11°C rise):

• In ideal conditions (mild spring, 15°C ambient): 48-60 hours continuous running
• In cooler conditions (early spring, 8°C ambient): 72-96 hours
• With a pool cover: Reduce these times by 30-50%

The key is patience during initial heat-up. Once at temperature, the heat pump only needs to run 2-6 hours daily to maintain it.

Q: Will a pool cover really make that much difference?
A: Yes – a pool cover is the single most important accessory for heat pump efficiency! An uncovered pool can lose 70% of its heat through evaporation. A cover:

• Reduces heat loss by 60-90%
• Cuts running costs by 40-60%
• Reduces heat-up times by 30-50%
• Keeps debris out of your pool
• Reduces chemical consumption

A £200-400 cover can save you £300-600 per year in running costs. It pays for itself in one season.

Q: My pool is 70m³. Should I get the PET-15 or upgrade to the PET-19?
A: At 70m³, you’re approaching the upper limit of the PET-15’s optimal range. While it will work, you’d benefit from the PET-19 (19.8kW) because:

• 25% faster heat-up times
• More headroom for cooler weather operation
• Less strain on the unit (longer lifespan)
• Better performance if you want to extend the season

The extra investment (roughly £700-800) pays back through better efficiency and faster results.

Installation & Costs

Q: Can I install this heat pump myself?
A: Electrical installation must be performed by a qualified electrician – this is both a legal requirement and essential for safety. The plumbing side can potentially be DIY if you have competent skills, but most customers hire a pool professional to ensure:

• Correct positioning and clearances
• Proper by-pass installation
• Optimal flow rates
• System balancing
• Warranty validity

Expect professional installation costs of £400-800 depending on complexity and location.

Q: Do I need any special electrical supply?
A: The PET-15 runs on standard UK single-phase 240V electricity. You will need:

• A dedicated circuit with a 16A circuit breaker
• 30mA RCD protection (Earth leakage protection)
• Proper earthing
• Cable sized appropriately for the distance from your consumer unit

Your electrician will assess your existing supply and install accordingly. No three-phase power is required (unlike some larger commercial models).

Q: What about running costs? How much will it cost per month?
A: Monthly costs vary depending on:

• Pool size and insulation
• Desired temperature
• Ambient weather conditions
• How much you use the pool
• Whether you use a cover
• Your electricity tariff

As a general guide for a 50m³ pool maintained at 26°C during a 6-month season:

• Average monthly cost: £60-75 (based on £0.28/kWh)
• With pool cover: £35-50 per month
• With off-peak tariff: £25-40 per month

Most customers find costs are highest in April-May during initial heat-up, then much lower June-September for maintenance heating.

Maintenance & Troubleshooting

Q: What regular maintenance does the PET-15 need?
A: The PET-15 is remarkably low-maintenance:

Monthly (during use):

• Check water flow is adequate
• Visually inspect for any damage or debris
• Ensure condensate drain is clear

Annually (before season start):

• Professional service inspection (recommended)
• Check refrigerant pressure
• Clean evaporator fins (carefully with soft brush)
• Check electrical connections are tight
• Verify water chemistry is balanced

Winter (if not running):

• Drain water from heat exchanger using drainage plugs
• Fit the winter cover (included)
• Isolate electrical supply

Total annual professional servicing cost: typically £100-150.

Q: What should I do if the heat pump displays an error code?
A: The PET-15 has comprehensive diagnostics. Common issues and solutions:

• Water flow error: Check filtration pump is running, inspect for blockages, verify by-pass valves are open
• High pressure error: Check adequate airflow around unit, ensure ambient temperature isn’t too high, verify water flow
• Low pressure error: May indicate low refrigerant – requires professional service
• Sensor errors: Usually requires professional diagnosis

The user manual contains a complete error code reference. Most issues are simple (water flow, power interruption) and easily resolved. For persistent errors, contact a qualified pool service engineer.

Q: How long will the PET-15 last?
A: With proper maintenance, expect:

• Compressor lifespan: 10-15 years
• Overall unit lifespan: 12-18 years
• Titanium heat exchanger: Essentially lifetime (20+ years)

The inverter technology actually extends lifespan compared to older on/off heat pumps because there’s less mechanical stress from constant starting and stopping. Key to longevity:

• Annual professional servicing
• Proper winter drainage if not in use
• Maintaining balanced water chemistry
• Using the winter cover during off-season

Smart Features & Connectivity

Q: Can I control the heat pump from my phone?
A: Yes, but you’ll need the optional iQBridge RS module (sold separately). This connects the PET-15 to the Fluidra Connect system, which includes the iAquaLink®+ mobile app. Features include:

• Remote temperature control
• Mode selection (Boost/Smart/Silent)
• Timer programming
• Real-time monitoring
• Alert notifications
• Historical data tracking

The iQBridge module costs around £150-200 and requires a WiFi connection near your pool equipment area.

Q: Will the heat pump work with my existing pool automation system?
A: Yes – the PET-15 includes a 10m Modbus signal wire for integration with compatible pool control systems. It can communicate with:

• Fluidra Connect systems
• Many third-party pool automation controllers
• Building management systems

Your pool professional can advise on compatibility with your specific setup.

Q: What’s the difference between the three operating modes?
A: Each mode serves a specific purpose:

🚀 Boost Mode: Runs at maximum power (15.9kW) for fastest possible heating. Use when:

• Starting the season and heating from cold
• Recovering after heavy pool use or parties
• Weather has turned unexpectedly cold
• You need the pool warm quickly

🧠 Smart Mode: Intelligently varies power between 11-15.9kW based on temperature difference. The everyday mode. Use for:

• Normal season operation
• Balancing speed and efficiency
• When you want ‘set and forget’ operation

🤫 Silent Mode: Reduces power to 3-8kW for ultra-quiet operation. Use when:

• Overnight heating
• Noise-sensitive times
• Temperature is close to target
• Running during social events

The heat pump automatically adjusts within each mode, so you’re always getting optimal performance.

Technical & Safety

Q: Why does water drip from the bottom of the unit? Is it leaking?
A: No, this is completely normal! It’s condensation, not a leak. As the heat pump extracts heat from the air, the air passing over the evaporator cools dramatically, causing moisture in the air to condense (like dew forming on grass). This water drips out from the base drainage. You may see:

• Several litres per hour in humid conditions
• More condensation in hot, humid weather
• Less or none in cold, dry conditions

The included condensate drainage kit helps direct this water away from the unit. It’s actually a sign your heat pump is working efficiently!

Q: The unit goes into “defrost mode” and stops heating. Is something wrong?
A: No, this is normal winter operation. When ambient temperature is low (typically below 5-7°C), frost can form on the evaporator coils. The automatic defrost cycle periodically:

1. Reverses operation briefly (2-5 minutes)
2. Heats the evaporator to melt frost
3. Returns to normal heating mode

During defrost, the heating LED will flash. You may see steam rising from the unit as frost melts. This is built-in protection to maintain efficiency in cold weather. Defrost cycles become more frequent as temperatures drop, which is why heating capacity reduces in very cold conditions.

Q: Is the R32 refrigerant safe? I’ve heard it’s flammable.
A: R32 is classified as “mildly flammable” (A2L classification), but the PET-15 is engineered with multiple safety features:

• Sealed refrigeration system
• Low refrigerant charge (1.1kg)
• Proper ventilation design
• Compliance with all EU safety standards

R32 is significantly more environmentally friendly than older refrigerants (R410A, R22) with:

• 75% lower Global Warming Potential (GWP of 675 vs 2088)
• Better efficiency (improves heat pump performance)
• Easier to recycle

When properly installed and maintained by qualified professionals, R32 systems are extremely safe. Never attempt to repair refrigeration components yourself – always use qualified engineers.

Q: Will the heat pump heat my pool faster if I set the temperature higher than I want?
A: No – this is a common misconception. The heat pump already runs at maximum capacity until your pool reaches the set temperature, then it throttles back. Setting the temperature higher than desired won’t make it heat faster; it will just overshoot your target, wasting energy and money. Always set the exact temperature you want (typically 26-28°C) and let the heat pump work its magic.

🛠️ Troubleshooting Quick Reference

Problem	Possible Cause	Solution
Won’t turn on	No power / Tripped breaker	Check circuit breaker, RCD, electrical connections
Runs but no heating	Reversed water flow / Wrong mode	Check plumbing connections, verify not in cooling mode
Water flow error (EE03)	Pump not running / Blockage	Start filtration pump, check by-pass valves, clean filter
Noisy operation	Anti-vibration feet missing / Loose panels	Install vibration feet, secure all panels, check fan blade
Frequent defrost cycles	Normal in cold weather	Expected below 7°C; ensure good airflow around unit
Temperature not maintained	Pool cover not used / Set temp too low	Use pool cover, check temperature setting is correct
Condensation puddle	Normal operation	Not a fault – redirect water with drainage kit if needed
Error code displayed	Various system faults	Consult error code table in manual, call service engineer

For persistent issues or error codes, contact a qualified pool service engineer or refer to the comprehensive troubleshooting section in the full user manual.

🌍 Environmental Credentials

The PET-15 represents responsible pool heating technology:

✅ Up to 80% lower carbon emissions vs. electric heaters
✅ R32 refrigerant with 75% lower Global Warming Potential than R410A
✅ Energy-efficient operation reduces strain on power grid
✅ Long lifespan (12-18 years) reduces electronic waste
✅ Recyclable materials in construction
✅ No combustion – zero NOx or SOx emissions
✅ Renewable heat source – extracts energy from ambient air

Carbon Footprint Comparison (50m³ pool, 6-month season):

Heating Method	Annual CO₂ Emissions
PET-15 Heat Pump	360 kg CO₂ ⭐
Electric Heater	1,800 kg CO₂
Oil Boiler	1,200 kg CO₂
Gas Boiler	900 kg CO₂
Solar (with backup)	50-150 kg CO₂

Choosing the PET-15 saves approximately 1.4 tonnes of CO₂ annually compared to electric heating – equivalent to planting 64 trees or driving 5,600 fewer miles.

📞 Support & Warranty Information

Manufacturer Warranty

The Astral Pool Pro Elyo Touch PET-15 is covered by AstralPool’s comprehensive warranty:

• Heat Exchanger: Extended warranty (typically 3-5 years, verify with supplier)
• Compressor: 2-3 year warranty
• Parts & Labour: 1-2 year comprehensive warranty (verify with supplier)

Warranty terms may vary by supplier. Register your product with AstralPool within 30 days of installation to activate full warranty protection.

Important: Warranty requires:

• Professional installation by qualified personnel
• Annual service by competent engineer
• Proper water chemistry maintenance
• Correct winter drainage procedures
• Registration of product within specified timeframe

Technical Support

For installation queries, technical support, or service requirements:

Parts4Tubs Support:
Contact the supplier directly for product-specific queries, spare parts, and warranty claims.

AstralPool Technical Support:
For complex technical questions, AstralPool provides dedicated support through authorized service centers.

Emergency Support:
For urgent issues during the swimming season, many pool service engineers offer same-day or next-day callout services. Keep contact details of local qualified pool engineers handy.

🎓 Installation Professional Tips

For DIY-Competent Installers (Plumbing Only – Electrical MUST Be Professional)

Water Flow Requirements:

• Ensure filtration pump provides 7m³/h flow rate through heat pump
• Install pressure gauges on by-pass kit to verify 0.5-1.0 bar pressure drop
• Too much flow = noise and reduced efficiency
• Too little flow = EE03 error and no heating

Pipe Sizing:

• Use 50mm (2″) pipework throughout
• Minimize 90-degree bends (use 45-degree sweeps where possible)
• Keep pipe runs as short as practical
• Insulate pipes between pool and heat pump (reduces heat loss)

By-Pass Kit Configuration:

• Install 3-valve by-pass kit for optimal control
• Position by-pass close to heat pump
• Set isolation valves to direct ~70% flow through heat pump initially
• Fine-tune using pressure gauges

Air Flow Considerations:

• Never restrict air intake (front of unit)
• Ensure discharged air (top) has clear path away
• Don’t mount against walls or in corners
• Consider prevailing wind direction

Vibration & Noise Control:

• Always use the 4 anti-vibration feet (included)
• Mount on solid concrete base (not paving slabs)
• Avoid resonant structures (wooden decking, steel frames)
• Use flexible pipe connectors near unit to prevent vibration transfer

Condensate Management:

• Direct condensate to drainage (not onto grass – kills it!)
• Don’t pipe condensate into pool (reduces efficiency)
• Ensure drainage area doesn’t freeze in winter

For Electrical Contractors

Key Electrical Requirements:

• Supply: 220-240V 1N~ 50Hz, 9.2A rated current
• Protection: 16A Type B or C MCB + 30mA RCD (mandatory)
• Cable: Minimum 2.5mm² 3-core SWA (see distance table earlier)
• Earthing: Secure earth connection to heat pump terminal is critical
• Isolation: Accessible double-pole isolator within 3m of unit

Connection Points:

• Main power supply: Terminal block in right side panel
• Filtration pump control: Dry contact terminals (optional integration)
• Modbus connection: Dedicated terminals for smart controls

Testing & Commissioning:

• Verify supply voltage within 220-240V range
• Test RCD trips correctly (30mA)
• Check earth loop impedance
• Confirm polarity correct (L-N-E)
• Verify heat pump starts correctly with filtration pump running

📋 Pre-Purchase Checklist

Before ordering your PET-15, verify:

Pool Suitability:

• Pool volume is 28-85m³ (PET-15 suitable range)
• Pool location allows for outdoor heat pump placement
• Adequate space for required clearances (see Installation section)
• Existing filtration pump provides 7m³/h flow rate or higher

Site Requirements:

• Level concrete base available for mounting
• Distance from heat pump location to consumer unit measured (for cable sizing)
• Ambient noise considerations assessed (neighbours, bedrooms)
• Access route for delivery (unit weighs 87kg, dimensions 1050×450×870mm)

Electrical Supply:

• Consumer unit has spare capacity for 16A circuit
• 30mA RCD protection available or will be installed
• Qualified electrician identified for installation
• Electrical installation budget allocated (typically £300-500)

Plumbing & Installation:

• By-pass kit available or ordered (highly recommended)
• Appropriate 50mm pipe fittings available
• Pool professional identified for installation (if not DIY)
• Installation budget allocated (typically £400-800 total)

Accessories & Extras:

• Pool cover available or ordered (dramatically improves efficiency)
• iQBridge RS module ordered if smartphone control desired
• Winter cover included (comes standard)
• Extended warranty considered if available

Operational:

• Realistic expectations set for heat-up times
• Annual running costs budgeted
• Annual servicing budget allocated (£100-150)
• User manual read and understood

💼 Why Buy From Parts4Tubs?

✅ Authorized AstralPool Dealer – Genuine products with full manufacturer warranty
✅ Expert Knowledge – Specialist pool and spa equipment suppliers
✅ Competitive Pricing – Great value on premium equipment
✅ UK Stock – Fast delivery from UK warehouse
✅ Comprehensive Support – Pre and post-sale technical assistance
✅ Complete Range – One-stop shop for all pool and spa needs

📥 Downloads & Documentation

📄 Pro Elyo Touch Installation Manual (opens in new tab)
Complete installation guide including wiring diagrams, clearance requirements, and setup procedures.
View Installation Manual

💡 Note: These are general product family manuals. For the specific PET-15 datasheet or quick start guide, please contact Parts4Tubs directly.

Need Additional Documentation?
Contact Parts4Tubs for:

• Product datasheets
• Wiring diagrams
• Warranty registration information
• Service center locations
• Spare parts catalogues

🛒 Ready to Transform Your Pool Experience?

The Astral Pool Pro Elyo Touch PET-15 represents the pinnacle of residential pool heating technology. With exceptional efficiency, whisper-quiet operation, and year-round reliability, it’s the smart investment for serious pool owners who demand the best.

Your pool deserves professional heating. Your family deserves extended swimming seasons. You deserve peace of mind.

Order Your PET-15 Today and Enjoy:

✅ Year-round swimming comfort in all British weather
✅ Up to 80% lower running costs vs. electric heating
✅ Whisper-quiet operation that won’t disturb your peace
✅ Smart controls for effortless management
✅ Proven AstralPool quality backed by comprehensive warranty
✅ Professional UK support from Parts4Tubs

Questions? Our expert team is here to help.
Contact Parts4Tubs today for personalized advice on sizing, installation, and getting the most from your investment.