🌊 I-PAC PRO 22B Side-Outlet Inverter Pool Heat Pump (3-Phase) – All Year Round Heating & Cooling
💡 The Smart Choice for Year-Round Pool Comfort
Transform your swimming experience with the I-PAC PRO 22B – a cutting-edge three-phase inverter heat pump engineered for exceptional performance in all seasons. Whether you’re heating your pool on a crisp autumn morning or cooling it during a scorching summer day, this whisper-quiet powerhouse delivers reliable, energy-efficient climate control from -20°C to +43°C.
Perfect for residential pools, therapy pools, spa facilities, health clubs, and light-commercial installations, the I-PAC PRO 22B combines Italian engineering excellence with smart Wi-Fi control, eco-friendly R32 refrigerant, and a corrosion-resistant titanium heat exchanger. With heating capacities up to 27.0 kW and an outstanding COP reaching 20.1, you’ll enjoy lower running costs without compromising on comfort.
Why pool owners choose the I-PAC PRO 22B:
✅ Whisper-Quiet Operation – As low as 19 dB(A) at 10 meters in Silence Mode ✅ Smart Wi-Fi Control – Monitor and adjust from anywhere via the PoolTherm app ✅ Year-Round Reliability – Operates efficiently from -20°C to +43°C ✅ Energy Savings – Up to 50% lower running costs vs. traditional on-off heat pumps ✅ 5-Year On-Site Warranty – Comprehensive parts and labor coverage included
🔥 Key Features That Set the I-PAC PRO 22B Apart
Smart Inverter Technology
The heart of this heat pump is its DC twin rotary inverter compressor that continuously adjusts speed to match your exact heating or cooling demand. Unlike traditional on-off heat pumps that cycle wastefully, the inverter technology delivers:
- Precise temperature control within ±0.5°C of your setpoint
- Soft startup that protects your electrical system from power surges
- Reduced energy consumption through intelligent load matching
- Extended equipment lifespan with less wear from constant cycling
Three Intelligent Operating Modes
🚀 Turbo Mode – Maximum 27.0 kW heating capacity for rapid pool warm-up
⚡ Perfect Mode – Optimized 21.6 kW output balancing efficiency and performance (COP up to 20.1)
🔇 Silence Mode – Ultra-quiet operation at 50% capacity, ideal for residential areas and nighttime use
Advanced Control & Connectivity
Integrated Touchscreen Controller displays real-time data:
- Current inlet and outlet water temperatures
- Power consumption or compressor speed percentage
- Operating mode indicators
- Fault codes and diagnostics
Built-in Wi-Fi Module enables:
- Remote monitoring and control via the PoolTherm app (iOS & Android)
- Over-the-air firmware updates to keep your system optimized
- Real-time alerts and notifications
- Optional wired remote control panel with 10m cable
Built to Last
- Titanium Heat Exchanger – Superior resistance to pool chemicals and corrosion
- R32 Eco-Friendly Refrigerant – Low Global Warming Potential (GWP 675), A2L safety classification
- Weatherproof Aluminum Alloy Cabinet – Durable construction for outdoor installations
- Anti-Vibration Mounts – Included as standard for quieter, stable operation
- Electronic Expansion Valve (EEV) – Precise refrigerant metering for optimal efficiency
📋 Complete Technical Specifications
Performance Data
| Performance Metric | Specification |
|---|---|
| Heating Capacity (Turbo Mode) | 27.0 kW @ 27°C air / 27°C water |
| Heating Capacity (Perfect Mode) | 21.6 kW @ 27°C air / 27°C water |
| Coefficient of Performance (COP) Range | 7.3 – 20.1 (Perfect Mode) |
| Average COP at 50% Speed | 14.9 |
| Cooling Capacity | 13.5 kW @ 35°C air / 28°C water |
| Operating Air Temperature Range | -20°C to +43°C |
| Water Temperature Range (Heating) | 18°C to 40°C |
| Water Temperature Range (Cooling) | 12°C to 30°C |
Electrical Specifications
| Electrical Parameter | Specification |
|---|---|
| Power Supply | 400V / 3-Phase / 50 Hz |
| Rated Power Input Range | 0.42 – 3.49 kW |
| Rated Input Current | 0.61 – 5.06 A |
| Maximum Input Current | 8 A |
| Rated Fuse/MCB Type C | 10 A |
| RCD Type | Type B, 30 mA |
| Supply Voltage Range (Min/Max) | 360V – 440V |
Hydraulic & Acoustic Specifications
| Parameter | Specification |
|---|---|
| Recommended Water Flow Rate | 8 – 10 m³/h |
| Water Connections | 50 mm female unions (48.3mm female also included) |
| Water Pressure Drop | 12 kPa |
| Maximum Air Flow | 6,500 m³/h |
| Sound Pressure Level @ 10m | 19.0 – 29.4 dB(A) |
| Sound Pressure Level (Silence Mode) | As low as 19 dB(A) @ 10m |
Physical & Refrigerant Data
| Specification | Details |
|---|---|
| Dimensions (W × D × H) | 1,071 × 536 × 953 mm |
| Net Weight | 111 kg |
| Refrigerant Type | R32 |
| Refrigerant Charge | 2.4 kg |
| CO₂ Equivalent | 1.62 tonnes |
| Minimum Installation Area | 49 m² |
📥 Downloads & Documentation
📄 Installation Manual (opens in new tab)
Complete owner installation manual covering safety procedures, positioning requirements, plumbing connections, electrical wiring, operation instructions, maintenance schedules, and troubleshooting guides. Essential reading for installers and pool owners. (48 pages, PDF format)
📄 Product Brochure (opens in new tab)
Comprehensive technical brochure featuring the complete I-PAC PRO range, performance data at multiple operating conditions, sizing charts for domestic pools, control panel overview, and dimensional drawings. (Multiple pages, PDF format)
🎯 Top 7 Benefits You’ll Love
1. Exceptional Energy Efficiency
With COP values reaching 20.1 in Perfect Mode, the I-PAC PRO 22B extracts up to 20 times more heat energy than the electricity it consumes. At 50% compressor speed, the average COP of 14.9 means you’ll save up to 50% on running costs compared to traditional on-off heat pumps.
2. Whisper-Quiet Comfort
Revolutionary cabinet design and Silence Mode operation deliver sound levels as low as 19 dB(A) at 10 meters – quieter than a library. Perfect for installations near bedrooms, patios, or noise-sensitive areas. Your neighbors won’t even know it’s running.
3. Total Climate Control
Not just heating – the I-PAC PRO 22B offers complete pool climate management with heating, cooling, and automatic mode. Set your desired temperature and let the intelligent controller maintain perfect comfort year-round.
4. Smart Home Integration
Control your pool temperature from anywhere using the PoolTherm app. Check current temperatures, adjust settings, monitor energy consumption, and receive maintenance alerts – all from your smartphone. The system even supports over-the-air firmware updates to improve performance over time.
5. Extreme Weather Performance
While other heat pumps struggle in cold weather, the I-PAC PRO 22B thrives. The all-season design operates reliably down to -20°C and up to +43°C, with automatic defrost cycles ensuring consistent performance even on freezing mornings.
6. Built-In Protection
Your investment is protected with comprehensive safety features including high/low pressure protection, water flow monitoring, frost protection, over-temperature shutdown, and complete electrical system protection with built-in fault reporting.
7. Hassle-Free Ownership
Every I-PAC PRO 22B includes everything you need: anti-vibration mounts, winter cover, condensate drainage kit, and water union connectors. Backed by a 5-year on-site warranty covering parts and labor, plus access to Dantherm’s remote diagnostics support.
🏊 Pool Sizing & Performance Guide
Recommended Pool Sizes
The I-PAC PRO 22B is ideally suited for:
| Pool Type | Surface Area | Volume | Heating Season |
|---|---|---|---|
| March-November | 50-70 m² | 65-90 m³ | Extended Season |
| All Year Round | 35-55 m² | 45-70 m³ | Year-Round Use |
💡 Note: Sizing assumes domestic usage, in-ground construction, average depth of 1.3m, use of insulated pool cover 20+ hours daily, and sheltered location.
Heat-Up Time Estimates
Understanding how long it takes to heat your pool helps you plan effectively and set realistic expectations. The tables below show estimated heat-up times for the I-PAC PRO 22B at different operating conditions.
Turbo Mode (27.0 kW) – Rapid Heat-Up
| Pool Volume | 5°C Rise | 10°C Rise | 15°C Rise |
|---|---|---|---|
| 40 m³ | 9 hours | 17 hours | 26 hours |
| 50 m³ | 11 hours | 21 hours | 32 hours |
| 60 m³ | 13 hours | 26 hours | 39 hours |
| 70 m³ | 15 hours | 30 hours | 45 hours |
| 80 m³ | 17 hours | 34 hours | 51 hours |
Perfect Mode (21.6 kW) – Optimal Efficiency
| Pool Volume | 5°C Rise | 10°C Rise | 15°C Rise |
|---|---|---|---|
| 40 m³ | 11 hours | 21 hours | 32 hours |
| 50 m³ | 13 hours | 27 hours | 40 hours |
| 60 m³ | 16 hours | 32 hours | 48 hours |
| 70 m³ | 19 hours | 38 hours | 56 hours |
| 80 m³ | 22 hours | 43 hours | 65 hours |
⚠️ Important Disclaimers:
These are theoretical estimates calculated using the formula: Time (hours) = (Pool Volume in m³ × Temperature Rise in °C × 1.16) ÷ Heat Pump kW Rating
Actual heat-up times will vary based on:
- Ambient air temperature and humidity
- Starting water temperature
- Heat losses from pool surface, ground, and walls
- Wind conditions and pool exposure
- Use of pool cover during heating
- Water flow rate through the heat pump
- Pool insulation quality
For faster heating, always use a pool cover when the pool is not in use, and consider running in Turbo Mode during the initial warm-up phase before switching to Perfect Mode for daily maintenance.
💰 Running Cost Comparison
Why Inverter Technology Saves You Money
| Heating Method | Approximate Cost per kWh | Cost to Heat 60m³ Pool by 5°C |
|---|---|---|
| I-PAC PRO 22B (COP 14.9) | £0.02 | £1.40 |
| Standard Heat Pump (COP 5.5) | £0.05 | £3.70 |
| Electric Heater (COP 1.0) | £0.27 | £20.30 |
| Gas Heater (85% efficiency) | £0.08 | £6.80 |
💡 Estimated annual savings: £800-£1,200 compared to standard heat pumps, based on typical UK domestic pool usage.
Calculations based on UK average electricity rate of £0.27/kWh. Actual costs vary by location, tariff, and usage patterns.
🛠️ Installation & Clearance Requirements
Minimum Clearance Distances
For optimal airflow and performance, maintain these clearances:
- Air Inlet Sides: 700 mm minimum clearance
- Air Outlet (Front): 750 mm minimum clearance
- Service Access: 500 mm minimum clearance
- Overhead Clearance: Avoid installing under structures or awnings
- Multiple Units: Align all air inlets/outlets in same orientation with clearances maintained
⚠️ Critical Installation Notes:
- Heat pump must be positioned minimum 3.5 meters from pool edge (electrical safety requirement)
- Installation area must be minimum 49 m² (R32 refrigerant safety requirement)
- Always install with supplied anti-vibration mounts
- Connect to mains with isolator switch within 2m and in line of sight
- Ensure adequate water flow (8-10 m³/h) with bypass valve adjustment
What’s Included
✅ Anti-vibration rubber mounts (set of 4) ✅ Winterization cover ✅ Water union connectors (50mm and 48.3mm female) ✅ Condensate drainage kit (adaptor + flexible hose) ✅ Comprehensive installation manual
Optional Accessories
- Wired remote control panel with 10m cable (Model: 1009534)
- Air sealing strip for indoor/plant room installations (Model: 1009535)
🔧 Smart Operation Features
Pump Synchronization
The I-PAC PRO 22B features intelligent pool pump synchronization to minimize energy consumption:
- Sampling Function: Tests water temperature every hour when pump is off
- Auto-Override: Automatically starts circulation pump if heating/cooling needed
- Energy Savings: Reduces unnecessary pump runtime while maintaining temperature
- Configurable Settings: Works with external timeclocks for filtration schedules
Timer Functions
- Single Timer: One-time ON/OFF scheduling
- Cycle Timer: Daily repeat ON/OFF scheduling
- Remote Timer Control: Set schedules via app or remote panel
Automatic Defrost
- Intelligent Defrost Cycles: Automatic detection and defrost activation
- Reverse Cycle Technology: Four-way valve enables rapid, efficient defrosting
- Manual Override: Force defrost option available (minimum 10-minute compressor runtime required)
- Visual Indication: Control panel displays defrost status
❓ Frequently Asked Questions
1. What size pool can the I-PAC PRO 22B heat?
The I-PAC PRO 22B is ideal for pools with surface areas of 50-70 m² (approximately 60-90 m³ volume) for extended season use (March-November), or 35-55 m² (45-70 m³) for year-round heating. For precise sizing based on your specific circumstances – including pool construction, location, desired temperature, and usage patterns – consult the sizing charts in the product brochure or contact our technical team.
2. How much does it cost to run per year?
Annual running costs depend on pool size, desired temperature, climate, usage patterns, and whether you use a pool cover. As a guide, for a typical 60 m³ UK domestic pool maintained at 28°C during a March-November season with good pool cover usage, expect approximately £400-£600 in electricity costs. The inverter technology and high COP (up to 20.1) means the I-PAC PRO 22B typically costs 40-50% less to run than standard on-off heat pumps.
3. How quiet is the I-PAC PRO 22B in Silence Mode?
In Silence Mode, the I-PAC PRO 22B operates at approximately 19-24 dB(A) at 10 meters – comparable to rustling leaves or a whisper. This is roughly 5 dB(A) quieter than previous equivalent models, which represents a perceived halving of loudness to the human ear. Perfect for residential installations near bedrooms or properties with close neighbors.
4. Can I control it from my smartphone?
Yes! The built-in Wi-Fi module connects to the PoolTherm app (available for iOS and Android). Through the app, you can monitor water temperatures, adjust setpoints, switch between heating/cooling/auto modes, select operating modes (Turbo/Perfect/Silence), view real-time power consumption, set timers, receive fault notifications, and even update the firmware remotely.
5. Does it work in winter temperatures?
Absolutely. The I-PAC PRO 22B is designed for all-season operation from -20°C to +43°C ambient air temperature. While heating capacity decreases in colder conditions (this is normal for all heat pumps), it continues to operate effectively. At 15°C air temperature, it still delivers 18.5 kW in Turbo Mode with a COP of 5.3-8.6. Automatic defrost cycles prevent ice buildup on the evaporator coils.
6. What’s the difference between single-phase and three-phase models?
The I-PAC PRO 22B is a three-phase model requiring 400V three-phase electrical supply. Three-phase models offer several advantages: more balanced electrical load distribution, lower current draw per phase (reducing cable sizing requirements), better motor efficiency, and smoother operation. They’re ideal for larger properties, commercial installations, or homes already equipped with three-phase supply. If you only have single-phase supply, consider the I-PAC PRO 22A (identical specifications but single-phase 230V).
7. What maintenance is required?
The I-PAC PRO 22B requires minimal maintenance:
Monthly: Visually inspect evaporator fins and clear any debris with a soft brush; check condensate drain isn’t blocked
Seasonally: Clean evaporator coils; check electrical connections are secure; verify water flow rates; test all operating modes
Annually: Professional inspection of refrigerant circuit and electrical components (recommended); verify all safety features functioning
Winter: If not using year-round, follow the winterization procedure in the manual (drain water circuit, flush with clean water, cover unit)
Always maintain pool water chemistry within specified ranges (pH 7.2-7.8, chlorine 1-3 ppm) to protect the titanium heat exchanger.
8. Is installation difficult?
Installation should be performed by a qualified technician familiar with heat pump systems, pool plumbing, and three-phase electrical installations. The process involves: positioning with proper clearances, connecting pool water pipework with flow rate adjustment, wiring to three-phase electrical supply with proper protection devices (RCD, MCB), and commissioning. Most installations take 3-6 hours. The comprehensive installation manual provides detailed step-by-step instructions, wiring diagrams, and safety requirements.
9. What warranty is included?
Every I-PAC PRO 22B includes a comprehensive 5-year on-site warranty covering both parts and labor. This warranty requires proper installation by a qualified technician, adherence to maintenance schedules, and maintaining pool water chemistry within specified parameters. Dantherm’s remote monitoring capability often enables diagnostics and troubleshooting without site visits, ensuring faster resolution of any issues.
10. Can it cool my pool in summer?
Yes! The I-PAC PRO 22B provides 13.5 kW of cooling capacity at 35°C air temperature. Simply select cooling mode (or use auto mode for automatic heating/cooling), and it will reduce water temperature to your desired setpoint. This is particularly valuable for indoor pools, hydrotherapy pools, or outdoor pools in hot climates where water temperature can become uncomfortably warm.
11. What is R32 refrigerant, and why does it matter?
R32 is an eco-friendly refrigerant with a Global Warming Potential (GWP) of 675 – significantly lower than older refrigerants like R410A (GWP 2,088). It’s classified as A2L (low toxicity, lower flammability), making it safer and more environmentally responsible. R32 also offers excellent thermodynamic properties, contributing to the heat pump’s high efficiency. The I-PAC PRO 22B meets current F-Gas regulations and future environmental standards.
12. How does inverter technology differ from standard heat pumps?
Traditional on-off heat pumps run at full capacity until the setpoint is reached, then shut off completely – causing temperature fluctuations, high startup currents, and wear from constant cycling. Inverter technology continuously adjusts compressor speed (from 20% to 100% capacity) to precisely match heating demand. Benefits include: 40-50% energy savings, more stable temperatures (±0.5°C), whisper-quiet operation at partial loads, extended equipment life, and soft startup that’s gentler on electrical systems.
⚠️ Important Safety & Installation Information
Electrical Safety
- Installation must comply with all local electrical codes and regulations
- Three-phase heat pump requires 400V/3Ph/50Hz supply
- Isolator switch with 3mm minimum contact separation must be within 2m and in line of sight
- RCD protection (Type B, 30mA) dedicated to heat pump required
- Heat pump must be properly earthed/grounded
- Minimum 3.5m distance from pool edge mandated by electrical safety regulations
R32 Refrigerant Safety
- R32 is A2L classified (low toxicity, lower flammability)
- Installation area must exceed 49 m² minimum (safety calculation per EN 378)
- Do not install in potentially explosive environments
- Keep ignition sources away from installation area
- If refrigerant leak suspected, evacuate area and contact qualified technician
- Only F-Gas certified technicians may work on refrigerant circuit
Winterization
If not operating year-round, proper winterization is essential to prevent frost damage:
- Isolate electrical supply and remove fuses
- Drain all water from heat pump
- Flush water circuit with clean tap water (minimum 10 minutes)
- Allow complete drainage
- Cover water connections with plastic bags
- Spray electrical components with moisture repellent
- Install winter cover (included)
⚠️ Failure to winterize properly will void warranty if frost damage occurs.
Water Chemistry Requirements
Maintain pool water within these parameters to protect the titanium heat exchanger:
- pH: 7.2 – 7.8
- Total Alkalinity: 80 – 120 ppm (as CaCO₃)
- Free Chlorine (Domestic): 1 – 2 ppm
- Free Chlorine (Commercial): 3 – 6 ppm
- Total Dissolved Solids: Maximum 1,000 ppm
- Maximum Salt Content: 35,000 ppm
- Maximum Copper Content: 1 ppm
📦 What’s in the Box
- I-PAC PRO 22B Heat Pump (fully assembled)
- Owner Installation Manual
- Winterization Cover
- Anti-Vibration Rubber Mounts (4)
- Water Union Connectors (50mm female × 2, 48.3mm female × 2)
- Condensate Drainage Kit (adaptor + flexible hose)
- CE Declaration of Conformity
🏢 About Dantherm Group
The I-PAC PRO range is manufactured by Dantherm Group, a leading European provider of climate solutions with decades of experience in heat pump technology. Every unit is engineered to exacting standards and backed by comprehensive technical support, remote diagnostics capability, and a robust warranty program. Dantherm holds ISO 9001 (Quality Management) and ISO 14001 (Environmental Management) certifications, ensuring consistent product quality and environmental responsibility.
🛒 Ready to Transform Your Pool Experience?
The I-PAC PRO 22B represents the pinnacle of three-phase pool heating technology – combining exceptional efficiency, whisper-quiet operation, intelligent controls, and year-round reliability. Whether you’re upgrading from an older heat pump, replacing a costly gas heater, or installing pool heating for the first time, the I-PAC PRO 22B delivers outstanding value and performance.
Order now and enjoy:
✅ 5-Year On-Site Warranty (parts & labor) ✅ Free Delivery on eligible orders ✅ Expert Technical Support from our team ✅ Remote Monitoring capability for peace of mind


