🌊 Norsup P20TX/32 Inverter Swimming Pool Heat Pump – 20kW | 3-Phase 380V | Ultra-Quiet Smart Pool Heating

Transform your pool into a year-round luxury retreat with the Norsup P20TX/32 – the UK’s smartest, quietest, and most efficient inverter heat pump for medium to large swimming pools. Engineered in Europe for British weather conditions, this premium 20kW heat pump delivers whisper-quiet performance, cutting-edge Wi-Fi control, and industry-leading efficiency that slashes your heating costs by up to 80% compared to traditional gas or electric heaters.

🎯 Perfect for Your Pool Size: Expertly sized for pools between 55-95m³ (approx. 12,000-21,000 gallons), this heat pump provides reliable, consistent heating whether you have a family pool, home spa, or commercial facility.

⚡ Inverter Technology That Saves You Money: Unlike fixed-speed heat pumps, the P20TX/32 automatically adjusts its power output to match weather conditions and your pool’s needs. This intelligent inverter technology delivers:

• Up to 80% lower running costs vs. gas heaters
• COP (Coefficient of Performance) up to 16 – for every 1kW of electricity used, you get up to 16kW of heat
• Smooth, gradual temperature adjustments that prevent energy waste

🔇 Whisper-Quiet Operation: Enjoy your outdoor space without the noise. At just 25-36 dB(A) at 10 meters (comparable to a whisper), and an ultra-silent mode at 25 dB(A), this heat pump operates so quietly you’ll barely know it’s there.

📱 Total Control From Your Phone: The included Wi-Fi module lets you monitor and control your pool temperature from anywhere using the NorsupOne smartphone app (iOS & Android). Adjust settings, schedule heating times, and receive alerts – all from the palm of your hand.

❄️ All-Season Performance: Works efficiently in temperatures as low as -15°C, extending your swimming season from early spring through late autumn.

🏆 Key Features & Benefits

Advanced Inverter Technology

✅ Variable-speed compressor automatically adjusts output from 4.6kW to 19.5kW based on demand
✅ Three intelligent operating modes: Power (maximum heat), Smart (balanced efficiency), Silent (ultra-quiet)
✅ Soft-start technology prevents voltage spikes and protects your electrical system
✅ Real-time performance optimization adapts to ambient temperature changes

Professional-Grade Construction

✅ Titanium twisted heat exchanger – completely resistant to chlorine, salt, and corrosive pool chemicals
✅ ABS reinforced cabinet – UV-resistant, weatherproof, and built for decades of outdoor use
✅ Mitsubishi/Hitachi rotary compressor – industry-leading reliability and performance
✅ R32 refrigerant – 3x lower Global Warming Potential than R410A, future-proof and eco-friendly

Smart Control & Monitoring

✅ Full-colour touchscreen controller with intuitive interface
✅ Wi-Fi module included – control from iOS/Android app
✅ Programmable timer – set heating schedules to match your routine
✅ Real-time temperature display for inlet, outlet, and ambient conditions
✅ Automatic defrost system maintains efficiency in cold weather

Ultra-Quiet Operation

✅ Horizontal airflow design reduces noise propagation
✅ Variable-speed DC fan runs at optimal speed for conditions
✅ Acoustic insulation throughout cabinet
✅ Silent mode for nighttime operation (automatic scheduling available)

Safety & Protection Systems

✅ Automatic flow sensor protection prevents operation without water flow
✅ High/low pressure protection safeguards compressor
✅ Anti-freeze protection prevents damage in cold conditions
✅ Thermal overload protection on all electrical components
✅ IPX4 water ingress protection for outdoor reliability

📊 Complete Technical Specifications

Specification	P20TX/32 Details
Part Number	7024629
Type	Horizontal Inverter Heat Pump
Pool Volume Capacity	55 – 95 m³ (12,100 – 20,900 gallons)
HEATING PERFORMANCE
Heating Capacity @ A27/W27**	4.6 – 19.5 kW (variable)
Heating Capacity @ A15/W25**	3.0 – 14.0 kW (variable)
Heating Capacity @ A10/W25**	4.2 – 13.6 kW (variable)
Heating Capacity @ A5/W25**	3.65 – 11.5 kW (variable)
EFFICIENCY RATINGS
COP @ A27/W27**	6.7 – 16.0 (exceptional)
COP @ A15/W25**	5.1 – 8.2 (excellent)
COP @ A10/W25**	4.07 – 5.35 (very good)
COP @ A5/W25**	3.53 – 5.04 (good)
Energy Label	A+++
ELECTRICAL
Power Supply	380V / 3-Phase / 50Hz
Power Input Range	0.37 – 3.54 kW
Rated Current	6.9 A
Minimum Fuse Required	10.3 A
OPERATING RANGES
Ambient Temperature Range	-15°C to +43°C
Water Temperature Range	9°C to 40°C
Operating Mode	Heating / Cooling / Auto
WATER SYSTEM
Water Connection Size	50mm (2″) slip-fit PVC
Nominal Flow Volume	6.6 m³/hour
Maximum Water Pressure Drop	6 kPa
Heat Exchanger Type	Twist-titanium tube in PVC housing
Condenser Material	Titanium (corrosion-proof)
REFRIGERATION SYSTEM
Compressor Type	Rotary Inverter
Compressor Brand	Mitsubishi / Hitachi
Refrigerant Type	R32 (eco-friendly)
CO₂ Equivalent	0.68 tons
FAN SYSTEM
Number of Fans	2 × variable-speed DC fans
Fan Direction	Horizontal airflow
Fan Speed Range	500 – 900 RPM (variable)
NOISE LEVELS
Noise @ 1 meter	45 – 56 dB(A)
Noise @ 10 meters	25 – 36 dB(A)
Silent Mode @ 10m	25 dB(A)
DIMENSIONS & WEIGHT
Net Dimensions (L×W×H)	1165 × 485 × 870 mm
Shipping Dimensions (L×W×H)	1210 × 510 × 880 mm
Net Weight	89 kg
Shipping Weight	103 kg
INCLUDED ACCESSORIES
Wi-Fi Control Module	✅ Included
Full-Colour Controller	✅ Included
Winter Protective Cover	✅ Included
Installation Manual	✅ Included
WARRANTY
Heat Pump Unit	4 years
Compressor	10 years
Heat Exchanger	10 years

Note on test conditions:
A27/W27 = Ambient air 27°C, Water temp 27°C (optimal summer conditions)
A15/W25 = Ambient air 15°C, Water temp 25°C (typical UK spring/autumn)
A10/W25 = Ambient air 10°C, Water temp 25°C (cooler weather)
A5/W25 = Ambient air 5°C, Water temp 25°C (cold conditions)

🏊 Pool Sizing Guide – Is This Heat Pump Right for You?

The P20TX/32 is professionally sized for pools with volumes between 55m³ and 95m³. Use this guide to determine if it’s the perfect match for your pool:

Recommended Pool Sizes

Pool Volume	Approximate Gallons	Typical Pool Dimensions	Suitability
55 m³	12,100 gallons	10m × 5m × 1.1m deep	✅ Minimum recommended
65 m³	14,300 gallons	11m × 5m × 1.2m deep	✅ Ideal
75 m³	16,500 gallons	12m × 5m × 1.25m deep	✅ Perfect match
85 m³	18,700 gallons	13m × 5m × 1.3m deep	✅ Excellent
95 m³	20,900 gallons	14m × 5m × 1.35m deep	✅ Maximum recommended

💡 Pro Tip: For pools with covers, solid insulation, or in sheltered locations, you can heat pools at the upper end of this range effectively. For exposed pools or those in windy locations, stay toward the middle of the range.

⏱️ Heat-Up Time Estimates

Understanding how quickly your pool will heat helps you plan your swimming schedule. These estimates are based on real-world conditions using the standard heating formula.

Formula Used:

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

Estimated Heat-Up Times for Various Scenarios

📊 Temperature Rise: +5°C (e.g., from 20°C to 25°C)

Pool Volume	Heating @ A15/W25	Heating @ A10/W25	Typical Conditions
55 m³	28 hours (1.2 days)	29 hours (1.2 days)	Mild spring/autumn
65 m³	33 hours (1.4 days)	34 hours (1.4 days)	Mild spring/autumn
75 m³	38 hours (1.6 days)	39 hours (1.6 days)	Mild spring/autumn
85 m³	43 hours (1.8 days)	44 hours (1.9 days)	Mild spring/autumn
95 m³	48 hours (2.0 days)	50 hours (2.1 days)	Mild spring/autumn

📊 Temperature Rise: +10°C (e.g., from 15°C to 25°C)

Pool Volume	Heating @ A15/W25	Heating @ A10/W25	Typical Conditions
55 m³	56 hours (2.3 days)	58 hours (2.4 days)	Cool spring, early heat-up
65 m³	66 hours (2.8 days)	68 hours (2.8 days)	Cool spring, early heat-up
75 m³	76 hours (3.2 days)	78 hours (3.3 days)	Cool spring, early heat-up
85 m³	86 hours (3.6 days)	88 hours (3.7 days)	Cool spring, early heat-up
95 m³	96 hours (4.0 days)	99 hours (4.1 days)	Cool spring, early heat-up

⚠️ Important Disclaimers:

• These estimates assume continuous operation (24/7) and no pool cover
• Using a pool cover can reduce heat-up times by 30-50%
• Heat-up times increase in windy conditions or with poor insulation
• Times are based on inverter average output – actual times vary with ambient temperature
• Initial heat-up takes longer; maintaining temperature requires much less energy
• These are estimates only – real-world performance depends on site conditions

💰 Running Cost Analysis

One of the biggest advantages of the P20TX/32 is its exceptional efficiency, which translates directly to lower energy bills.

Typical Monthly Running Costs (UK Average Electricity: £0.34/kWh)

These estimates assume heating a 75m³ pool to maintain 28°C during the swimming season:

Season	Ambient Temp	Daily Runtime	Daily Cost	Monthly Cost
Summer (June-Aug)	18-22°C	4-6 hours	£2.50 – £4.00	£75 – £120
Spring/Autumn (Apr-May, Sep-Oct)	12-16°C	8-12 hours	£5.00 – £8.00	£150 – £240
Early/Late Season (Mar, Nov)	5-10°C	14-18 hours	£8.00 – £12.00	£240 – £360

🆚 Cost Comparison: Heat Pump vs. Gas Heater

For the same 75m³ pool heated to 28°C during summer:

• P20TX/32 Heat Pump: £75-£120/month
• Gas Heater (30kW): £400-£600/month
• 💵 Your Savings: £325-£480/month (75-80% reduction)

💡 Over a 6-month swimming season, you could save £1,950 to £2,880 compared to gas heating!

🛠️ Installation Requirements

Electrical Requirements

⚡ Power Supply: 380V / 3-Phase / 50Hz
⚡ Minimum Fuse: 10.3A
⚡ Recommended Circuit Breaker: 16A
⚡ Residual Current Device (RCD): 30mA, <0.1 sec trip time
⚡ Cable Specification: 3× 2.5mm² phase lines + 2.5mm² earth (for runs up to 25m)

⚠️ Important: This unit requires a 3-phase power supply. Most UK homes have single-phase power. Installation requires a qualified electrician to assess your electrical system. In some cases, upgrading to 3-phase may be necessary (contact your electricity supplier).

Water Plumbing

💧 Water Connections: 50mm (2″) PVC slip-fit
💧 Flow Rate Required: 6.6 m³/hour (compatible with most pool pumps)
💧 Installation Position: After filter, before chlorinator/chemical dosing
💧 Bypass Valve: Recommended for maintenance access
💧 Isolation Valves: Install on inlet and outlet for easy servicing

Physical Installation Space

Minimum Clearances Required:

Location	Clearance Required
Front (airflow intake)	1500mm (5 feet)
Sides	500mm (20 inches) each side
Top	700mm (28 inches)
Back	300mm (12 inches)

📐 Unit Dimensions: 1165mm L × 485mm W × 870mm H

✅ Installation Tips:

• Install on a solid, level concrete base (minimum 100mm thick)
• Position where horizontal airflow won’t disturb neighbours or outdoor living areas
• Avoid enclosed spaces – fresh airflow is essential for efficiency
• Keep away from noise-sensitive areas (although this unit is exceptionally quiet)
• Ensure drainage for condensate (produces several litres per hour in humid conditions)
• Consider future access for maintenance and winterization

📱 Wi-Fi Control & Smart Features

NorsupOne Smartphone App (Included)

The P20TX/32 comes with full Wi-Fi connectivity and the NorsupOne app for complete remote control:

🎮 Remote Control Features:

• ✅ Adjust target temperature from anywhere
• ✅ Switch between Power / Smart / Silent modes
• ✅ View real-time inlet, outlet, and ambient temperatures
• ✅ Set programmable heating schedules (daily/weekly timer)
• ✅ Enable/disable Silent Mode with scheduling
• ✅ Receive alerts for faults and maintenance reminders
• ✅ Monitor energy consumption and COP performance
• ✅ Access 60-day temperature history with graphs

📲 App Compatibility:

• iOS (iPhone/iPad) – Download from Apple App Store
• Android – Download from Google Play Store

🔐 Easy Setup:

1. Power on the heat pump
2. Download NorsupOne app
3. Scan QR code on unit (or manual)
4. Connect to your Wi-Fi network
5. Control your pool from anywhere!

🌡️ Seasonal Performance Expectations

What to Expect Throughout the Year

🌞 Summer (June – August)

• Ambient Temps: 18-25°C
• Performance: Exceptional – COP 10-16
• Runtime: 4-8 hours/day to maintain temperature
• Pool Temp Achievable: 28-30°C easily maintained
• Energy Cost: £2-4/day

🍂 Spring/Autumn (April-May, September-October)

• Ambient Temps: 10-18°C
• Performance: Excellent – COP 5-10
• Runtime: 10-16 hours/day to maintain temperature
• Pool Temp Achievable: 25-28°C maintained
• Energy Cost: £5-8/day

❄️ Early/Late Season (March, November)

• Ambient Temps: 5-12°C
• Performance: Good – COP 4-7
• Runtime: 16-20 hours/day to maintain temperature
• Pool Temp Achievable: 22-26°C achievable
• Energy Cost: £8-12/day

⚠️ Winter Operation (December – February)

• Ambient Temps: -5 to 8°C
• Performance: Fair – COP 3.5-5
• Recommendation: Use pool cover, reduce target temp to 20-22°C, or close pool for winter
• The P20TX/32 can operate down to -15°C, but efficiency decreases significantly

💡 Pro Tips for Maximum Efficiency:

• Always use a pool cover when not swimming (saves 30-50% energy)
• Set temperature 1-2°C lower than you think you need
• Use timer scheduling to heat during warmer parts of the day
• Enable Silent Mode overnight to maintain temperature quietly
• Close off unused pool areas with a lane divider to reduce volume

❓ Frequently Asked Questions

General Operation

Q1: What size pool is this heat pump suitable for?
The P20TX/32 is professionally sized for pools between 55-95m³ (approximately 12,000-21,000 gallons). This typically covers pools from 10m × 5m up to 14m × 5m with average depth of 1.1-1.35m. For best results, stay within the middle of this range if your pool is uncovered or in an exposed location.

Q2: How long does it take to heat my pool from cold?
Initial heat-up time depends on pool volume and starting temperature. As an example, heating a 75m³ pool by 10°C (from 15°C to 25°C) typically takes 3-4 days of continuous operation. Maintaining temperature once reached requires far less energy – usually 6-12 hours per day depending on weather and whether you use a cover.

Q3: Can I use this with a saltwater pool?
Absolutely yes. The P20TX/32 features a titanium heat exchanger specifically designed to resist corrosion from salt, chlorine, and all common pool chemicals. Titanium is the gold standard for saltwater pool heating and will last for decades without degradation.

Q4: How noisy is this heat pump?
This is one of the quietest pool heat pumps available. At 10 meters distance, it operates at 25-36 dB(A) – similar to a quiet whisper or rustling leaves. In Silent Mode, it drops to just 25 dB(A), making it virtually inaudible. You can comfortably have conversations, relax, or sleep with this unit running nearby.

Q5: Will this work in cold UK weather?
Yes. The P20TX/32 is designed for European climates and operates efficiently in temperatures as low as -15°C. However, efficiency decreases as temperatures drop. It works best in temperatures above 5°C. For winter swimming, we recommend using a pool cover and possibly reducing your target temperature to 20-22°C to maintain reasonable running costs.

Installation & Setup

Q6: Do I need 3-phase power for this model?
Yes. The P20TX/32 requires a 380V 3-phase electrical supply. Most UK residential properties have single-phase power (230V), so you may need to upgrade your electrical service or choose a single-phase model. Contact a qualified electrician to assess your property. Alternatively, consider the P20X/32 (single-phase 230V version) if 3-phase is not available.

Q7: Can I install this heat pump myself?
We strongly recommend professional installation by a qualified pool technician and electrician. Installation involves plumbing connections, electrical work (including RCD protection), proper placement, and initial commissioning. DIY installation may void your warranty and could be unsafe. Incorrect installation is the leading cause of heat pump problems.

Q8: How far can the heat pump be from my pool?
Ideally, install within 7.5 meters of your pool. Heat pumps can be installed up to 15 meters away, but each additional meter of piping increases heat loss by approximately 0.5-1%. Always insulate pipes that run underground or through unheated spaces. Longer runs also require larger diameter pipes to maintain proper water flow.

Q9: Can this heat pump cool my pool in summer?
Yes! The P20TX/32 has an automatic cooling function that can reduce pool temperature on excessively hot days. This is particularly useful for pools in conservatories or very sunny locations where water can become uncomfortably warm (above 30°C).

Efficiency & Running Costs

Q10: What does COP mean, and why does it matter?
COP (Coefficient of Performance) measures efficiency. A COP of 10 means for every 1kW of electricity consumed, you get 10kW of heat output – essentially “free” heat extracted from the air. The P20TX/32 achieves a COP of up to 16 in optimal conditions (summer), and 5-8 in cooler weather. Higher COP = lower running costs. Gas heaters have a COP of ~0.85 (they lose energy), making heat pumps 5-15× more efficient.

Q11: How much will this cost to run per month?
Running costs depend on pool size, target temperature, ambient weather, and whether you use a cover. For a typical 75m³ pool:

• Summer: £75-120/month
• Spring/Autumn: £150-240/month
• Early/Late Season: £240-360/month

Using a pool cover saves 30-50% of these costs. Compare this to £400-600/month for a gas heater – you’ll save £1,950 to £2,880 over a 6-month season.

Q12: Should I run the heat pump 24/7 or use a timer?
For initial heat-up, run continuously until target temperature is reached. For temperature maintenance, you can use a timer to operate during warmer daylight hours (typically 10am-6pm). The inverter technology allows the P20TX/32 to modulate its output, so continuous operation at low power is often more efficient than repeated on/off cycles. Experiment to find what works best for your pool.

Maintenance & Warranty

Q13: What maintenance does this heat pump require?
Maintenance is minimal:

• Monthly: Check and clean the air intake grille (remove leaves/debris)
• Quarterly: Inspect water flow and connections for leaks
• Annually: Professional service including refrigerant pressure check, electrical connections, and heat exchanger inspection
• Seasonally: Winterize if closing pool (drain water from heat exchanger, install winter cover)

Regular filter cleaning in your pool system is essential – the heat pump requires good water flow to operate efficiently.

Q14: What warranty is included?

• Heat Pump Unit: 4 years comprehensive warranty
• Compressor: 10 years warranty
• Titanium Heat Exchanger: 10 years warranty

Warranty requires professional installation and annual servicing by a qualified technician. Keep all service records.

Q15: What happens if it breaks down?
The P20TX/32 includes comprehensive fault diagnostics with error codes displayed on the controller and app. Common issues (flow sensor, pressure switches) are simple to resolve. For compressor or refrigerant problems, contact a qualified HVAC technician. The system includes multiple safety protections to prevent major damage. Parts are readily available in the UK through authorized distributors.

Advanced Features

Q16: Can I control heating times automatically?
Yes. The touchscreen controller and smartphone app allow you to program:

• Daily timer – Set start/stop times for each day
• Weekly schedule – Different schedules for weekdays/weekends
• Silent mode timer – Automatically enable quiet operation during specific hours (e.g., 10pm-7am)
• Temperature setback – Lower temperature during times you won’t swim

This helps optimize running costs and ensures your pool is ready when you want to swim.

Q17: What are the Power / Smart / Silent modes?

• Power Mode: Maximum heating output (19.5kW) for rapid heat-up or very cold conditions
• Smart Mode: Automatically adjusts output (4.6-19.5kW) based on ambient temperature and pool conditions – most efficient for daily use
• Silent Mode: Reduced fan speed and compressor output for ultra-quiet operation (25 dB @ 10m) – ideal for nighttime or noise-sensitive environments

You can switch modes manually or program automatic mode changes based on time of day.

Q18: Does this heat pump have frost protection?
Yes, the P20TX/32 includes automatic anti-freeze protection that activates if water temperature drops below 2°C or ambient temperature falls too low. The system will circulate water and operate the compressor to prevent freezing damage. However, if you’re closing your pool for winter, always drain the heat exchanger completely and install the included winter cover.

📥 Downloads & Documentation

Complete manuals and technical information for the Norsup P20TX/32:

📄 User Manual with Wi-Fi Setup Guide (opens in new tab)
Comprehensive 70-page manual covering installation, operation, troubleshooting, maintenance, and Wi-Fi app setup. Available in English, Dutch, German, French, Danish, Swedish, and Polish. Includes wiring diagrams, fault code reference, and technical specifications.

📄 Controller Operation Manual (opens in new tab)
Dedicated guide for the full-colour touchscreen controller and NorsupOne smartphone app. Step-by-step instructions for programming timers, adjusting modes, viewing diagnostics, and connecting to Wi-Fi. Includes smartphone app screenshots and troubleshooting tips.

📄 Technical Datasheet (opens in new tab)
Single-page technical specification sheet with all performance data, dimensions, electrical requirements, and model comparison chart for the complete Norsup inverter range (P13X to P35TX models).

💡 Tip: Download and save these PDFs before installation. Share with your electrician and installer for reference during setup.

✅ What’s Included in the Box

When you receive your Norsup P20TX/32, here’s everything included:

✅ P20TX/32 Heat Pump Unit (fully assembled)
✅ Wi-Fi Control Module (pre-installed)
✅ Full-Colour Touchscreen Controller with wall-mounting bracket
✅ Winter Protective Cover (waterproof, UV-resistant)
✅ Installation & User Manual (multi-language)
✅ Controller Operation Manual
✅ Quick Start Guide
✅ Warranty Registration Card

⚠️ Not Included (to be supplied by installer):

• Water pipe connections and fittings (50mm PVC)
• Electrical cable and connection hardware
• Mounting base or plinth
• Bypass valves and isolation valves

🏆 Why Choose Parts4Tubs for Your Heat Pump?

✅ Authorized Norsup Dealer – Genuine products with full manufacturer warranty
✅ Expert Technical Support – Our team understands pool heating inside-out
✅ Competitive Pricing – Best value for professional-grade equipment
✅ Fast UK Delivery – Usually dispatched within 1-2 working days
✅ Installation Support – We can recommend qualified installers in your area
✅ After-Sales Service – We’re here to help long after your purchase

🎯 Ready to Transform Your Pool?

The Norsup P20TX/32 represents the pinnacle of pool heating technology – combining whisper-quiet operation, exceptional efficiency, smart connectivity, and professional-grade construction. Whether you’re extending your swimming season, maintaining comfortable temperatures year-round, or simply want to reduce your energy bills, this heat pump delivers outstanding performance and reliability.

Order today and enjoy:

• ⚡ Up to 80% lower running costs vs. gas heating
• 🔇 Ultra-quiet operation (25 dB in Silent Mode)
• 📱 Total control from your smartphone
• ❄️ All-season performance (-15°C to +43°C)
• 🛡️ 10-year warranty on compressor and heat exchanger
• 💚 Eco-friendly R32 refrigerant

Have questions? Our expert team is here to help. Contact us for personalized advice on sizing, installation, and operation.