🌊 I-PAC PRO 28A Side-Outlet Inverter Heat Pump | 32.5kW Single-Phase All-Year-Round Pool Heating & Cooling

Transform your swimming pool experience with the I-PAC PRO 28A – a premium single-phase inverter heat pump engineered for exceptional efficiency, whisper-quiet operation, and year-round comfort. Whether you’re heating your pool in the depths of winter or cooling it during summer heat waves, this advanced heat pump delivers outstanding performance with remarkable energy savings of up to COP 20 in perfect mode.

Featuring eco-friendly R32 refrigerant, a corrosion-resistant titanium heat exchanger, and intelligent WiFi touchscreen control, the I-PAC PRO 28A represents the pinnacle of modern pool heating technology. Operating reliably in ambient temperatures from -20°C to +43°C, this is the ultimate heating and cooling solution for discerning pool owners who demand excellence.

🔥 Key Features & Benefits

Advanced Inverter Technology

The stepless DC twin rotary inverter compressor adjusts power delivery with precision, providing softer starts, quieter operation, and significantly reduced energy consumption compared to traditional on/off heat pumps. This intelligent system continuously optimizes performance based on your pool’s exact heating or cooling requirements.

Three Intelligent Operating Modes

🚀 Turbo Mode – Maximum power delivery (100% to 20% capacity range) for rapid pool heating when you need it fast. Ideal for initial heat-up or recovering temperature after heavy pool use.

⚡ Perfect Mode – Intelligent optimization (80% to 20% capacity range) that automatically adjusts based on ambient air and pool water temperatures. Delivers the ideal balance of efficiency and performance with remarkable energy savings.

🔇 Silence Mode – Ultra-quiet operation (50% to 20% capacity range) perfect for noise-sensitive environments, evening operation, or when neighbors are nearby. Maintains comfortable pool temperatures while minimizing sound output.

Smart Connectivity

The built-in WiFi module and touchscreen control panel provide comprehensive monitoring and control capabilities. Use the Pooltherm App (available for Android and iOS) to adjust settings, monitor temperatures, view real-time power consumption, receive fault notifications, and even perform firmware updates – all from the convenience of your smartphone.

All-Weather Reliability

Unlike conventional heat pumps that struggle in cold conditions, the I-PAC PRO 28A operates effectively across an extraordinary temperature range of -20°C to +43°C. Advanced automatic and manual defrost functions ensure consistent performance even in challenging winter conditions.

Premium Build Quality

Housed in a durable weatherproof aluminum alloy cabinet, the I-PAC PRO 28A is built to withstand harsh environmental conditions. The twisted titanium heat exchanger provides exceptional corrosion resistance against pool chemicals, while anti-vibration mounts ensure ultra-quiet operation and extended component life.

💡 Why Choose the I-PAC PRO 28A?

✅ Outstanding Efficiency – Achieve up to COP 20 with advanced inverter technology and R32 refrigerant
✅ Whisper-Quiet Operation – As low as 19.6 dB(A) at 10 meters in Silence Mode – perfect for residential settings
✅ Smart WiFi Control – Monitor and control remotely via the Pooltherm App with firmware update support
✅ All-Season Performance – Operates effectively in extreme temperatures from -20°C to +43°C
✅ Eco-Friendly R32 Refrigerant – Environmentally responsible with low Global Warming Potential (GWP 675)
✅ Durable Titanium Heat Exchanger – Superior corrosion resistance for long-lasting performance
✅ Complete Installation Kit – Includes anti-vibration mounts, winter cover, condensate drain, and union connectors
✅ Dual Functionality – Heating AND cooling capability in one versatile unit

📊 Complete Technical Specifications

Specification	I-PAC PRO 28A Details
Power Supply	230V • Single Phase • 50 Hz
Heating Capacity (Turbo Mode)	32.5 kW @ 27°C air / 27°C water / 80% RH
Heating Capacity (Perfect Mode)	26 kW @ 27°C air / 27°C water / 80% RH
Heating Capacity at 15°C Air	22.7 kW (Turbo) / 18.8 kW (Perfect) @ 15°C air / 26°C water
Cooling Capacity	15.4 kW @ 35°C air / 28°C water / 80% RH
COP Range (Perfect Mode)	7.2 to 20 (exceptional efficiency)
Average COP at 50% Speed	14.7 (Perfect Mode)
Rated Input Power Range	0.50 – 4.20 kW (variable based on demand)
Rated Input Current	2.17 – 18.26 A
Maximum Input Current	24 A
Recommended Circuit Protection	32A aM Fuse or MCB Type C
RCD Rating	30 mA Type F
Refrigerant Type	R32 (A2L safety classification)
Refrigerant Charge	3.0 kg (2.025 tonnes CO₂ equivalent)
Operating Air Temperature Range	-20°C to +43°C (all-season operation)
Water Temperature Range (Heating)	18°C to 40°C
Water Temperature Range (Cooling)	12°C to 30°C
Recommended Water Flow Rate	10 – 12 m³/h
Water Connections	50 mm or 48.3 mm female union (both sizes included)
Water Pressure Drop	16 kPa
Maximum Air Flow	7,000 m³/h
Sound Pressure Level @ 10m	19.6 – 30.2 dB(A) (varies by mode)
Heat Exchanger	Twisted titanium (corrosion-resistant)
Compressor	Stepless DC twin rotary inverter
Fan Motor	DC brushless (ultra-efficient)
Expansion Valve	Electronic (EEV technology)
Control Interface	WiFi touchscreen with Pooltherm App compatibility
Dimensions (W × D × H)	1,264 × 536 × 954 mm
Net Weight	122 kg
Warranty	5 years on-site parts and labour

📄 Downloads & Documentation

Complete technical documentation for installation, operation, and maintenance:

📄 I-PAC PRO Installation Manual (PDF) (opens in new tab)
Comprehensive 50-page installation and operation manual including wiring diagrams, plumbing requirements, maintenance procedures, troubleshooting guide, technical specifications, winterization instructions, and warranty information.

📄 I-PAC PRO Product Brochure (PDF) (opens in new tab)
Product overview brochure featuring key features, technical data, performance specifications, dimensions, pool sizing charts, and control panel details.

🏊 Pool Sizing Guide & Heat-Up Time Estimates

Recommended Pool Sizes

The I-PAC PRO 28A is ideally suited for medium to large residential pools. Use the guidance below to determine suitability:

March to November Season (38-40 weeks operation):

• Pool surface area: 60-70 m² (645-753 ft²) for 28°C target temperature
• Pool volume: 78-91 m³ (assuming 1.3m average depth)

All-Year-Round Operation:

• Pool surface area: 50-60 m² (538-645 ft²) for 28°C target temperature
• Pool volume: 65-78 m³ (assuming 1.3m average depth)

These recommendations assume: in-ground construction, insulated pool cover used 20+ hours daily, sheltered location, 24/7 heat pump operation, and standard UK conditions.

Heat-Up Time Estimates

Understanding how quickly your pool will heat is essential for planning. Below are calculated estimates based on the I-PAC PRO 28A’s heating capacity.

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

Heat-Up Times at 27°C Ambient Air (32.5 kW Capacity)

Pool Volume	10°C Rise (18°C→28°C)	8°C Rise (20°C→28°C)	5°C Rise (23°C→28°C)
40 m³ (35,000 L)	14.3 hours	11.4 hours	7.1 hours
50 m³ (44,000 L)	17.8 hours	14.3 hours	8.9 hours
60 m³ (53,000 L)	21.4 hours	17.1 hours	10.7 hours
70 m³ (61,000 L)	25.0 hours	20.0 hours	12.5 hours
80 m³ (70,000 L)	28.6 hours	22.9 hours	14.3 hours

Heat-Up Times at 15°C Ambient Air (22.7 kW Capacity)

Pool Volume	10°C Rise (18°C→28°C)	8°C Rise (20°C→28°C)	5°C Rise (23°C→28°C)
40 m³ (35,000 L)	20.4 hours	16.4 hours	10.2 hours
50 m³ (44,000 L)	25.6 hours	20.4 hours	12.8 hours
60 m³ (53,000 L)	30.7 hours	24.5 hours	15.3 hours
70 m³ (61,000 L)	35.8 hours	28.6 hours	17.9 hours
80 m³ (70,000 L)	40.9 hours	32.7 hours	20.4 hours

⚠️ Important Heat-Up Time Disclaimers:

These are theoretical estimates calculated under ideal conditions. Actual heat-up times will vary based on:

• Ambient air temperature and humidity
• Wind exposure and weather conditions
• Pool construction (above-ground vs. in-ground)
• Ground temperature and insulation
• Use of pool cover (dramatically reduces heat loss)
• Heat losses from pool surface, edges, and plumbing
• Water flow rate through heat pump
• Initial pool temperature accuracy

For faster initial heat-up, consider using Turbo Mode. For ongoing temperature maintenance, Perfect Mode provides optimal efficiency.

🌡️ Performance Data Across Operating Conditions

Heating Performance Comparison

Ambient Air Temp	Water Temp	Humidity	Turbo Capacity	Perfect Capacity	Perfect COP
27°C	27°C	80% RH	32.5 kW	26.0 kW	7.2 – 20.0
15°C	26°C	70% RH	22.7 kW	18.8 kW	5.4 – 8.1

Cooling Performance

Ambient Air Temp	Water Temp	Humidity	Cooling Capacity
35°C	28°C	80% RH	15.4 kW

Perfect Mode provides intelligent optimization with stepless capacity adjustment from 20% to 80%, delivering exceptional efficiency across all operating conditions.

💰 Running Cost Estimates & Efficiency Benefits

Energy Efficiency Advantages

The I-PAC PRO 28A’s inverter technology delivers remarkable energy savings compared to traditional heating methods:

Coefficient of Performance (COP) Explained:
COP represents the ratio of heat output to electrical energy input. A COP of 14.7 means the heat pump produces 14.7 kW of heating for every 1 kW of electricity consumed – making it up to 1,470% efficient at optimal operating conditions.

Cost Comparison: Heat Pump vs. Traditional Heating

Based on UK average electricity rate of £0.24 per kWh (2024)

To Heat a 60m³ Pool by 8°C (20°C to 28°C):

Heating Method	Energy Used	Estimated Cost	Time Required
I-PAC PRO 28A (COP 14.7)	37.7 kWh	£9.05	17.1 hours
Electric Resistance Heater (100% efficient)	557 kWh	£133.68	18.5 hours
Gas Boiler (85% efficient)	655 kWh gas equivalent	£52.40 (@ £0.08/kWh gas)	15 hours

Annual Running Cost Estimate (March-November Season):

Assuming maintaining 60m³ pool at 28°C with cover, average ambient 18°C:

• I-PAC PRO 28A: Approximately £400-600 per season
• Electric Heater: Approximately £4,500-6,000 per season
• Gas Boiler: Approximately £1,800-2,400 per season

Actual costs vary significantly based on usage patterns, ambient conditions, pool cover usage, and local energy prices. The I-PAC PRO 28A typically achieves 85-90% lower running costs compared to electric resistance heating.

🔧 Installation Requirements & Clearances

Electrical Requirements

• Power Supply: 230V single-phase, 50Hz
• Circuit Protection: 32A aM fuse or MCB Type C
• RCD Protection: 30mA Type F (dedicated to heat pump only)
• Voltage Range: 207V – 253V (must remain above minimum even during compressor startup)
• Isolator: All-pole isolator within 2 meters and line of sight, 3mm minimum air gap

Plumbing Requirements

• Water Flow Rate: 10-12 m³/h (adjustable via bypass valve)
• Water Connections: 50mm or 48.3mm female unions (both sizes included)
• Bypass Valve: Essential for maintaining correct flow rate
• Flow Meter: Recommended for accurate flow setting
• Pipework: Solid pipes required (no flexible hose at heat pump connections)
• Insulation: Pool pipework insulation strongly recommended

Minimum Installation Clearances (Outdoor)

For optimal performance and airflow:

• Air Inlet Side: 500mm minimum from obstructions
• Air Outlet Side: 700mm minimum from obstructions
• Sides (parallel to airflow): 700mm minimum from obstructions
• Multiple Units: Maintain same clearances between units, align air inlets/outlets
• Overhead: Avoid placing under structures or awnings

⚠️ Critical: Heat pump must be positioned at least 3.5 meters from pool edge to comply with electrical safety regulations.

Indoor Installation Requirements

When installing in a plant room or enclosed space:

• Minimum Free Discharge Area: 0.95 m² for exhaust airflow
• Wall Opening Size: 1,080mm (W) × 880mm (H) minimum
• Air Sealing: Install optional sealing strip to prevent exhaust recirculation
• Room Area: Must exceed 76.6 m² (R32 refrigerant safety requirement)

📱 Smart Control & Connectivity

Touchscreen Control Panel Features

The integrated touchscreen provides intuitive control and real-time monitoring:

• ✅ On/Off Control with screen lock function
• ✅ Temperature Setting with up/down adjustment (18-40°C heating, 12-30°C cooling)
• ✅ Mode Selection: Heat / Cool / Auto switching
• ✅ Power Mode: Turbo / Perfect / Silence selection
• ✅ Live Temperature Display: Both inlet and outlet water temperatures
• ✅ Power Consumption Monitor: Real-time kW input or compressor speed percentage
• ✅ WiFi Status Indicator
• ✅ Fault & Protection Codes with diagnostic information
• ✅ Manual Defrost Function

Pooltherm App (iOS & Android)

Take control from anywhere with the Pooltherm smartphone app:

• 🌐 Remote Access – Control your heat pump from home or away
• 📊 Live Monitoring – View temperatures, power consumption, and operating status
• ⏰ Timer Functions – Schedule on/off times for optimized energy use
• 🔔 Fault Notifications – Receive alerts if issues arise
• 🔄 Firmware Updates – Keep your heat pump optimized with over-the-air updates
• 📈 Performance Tracking – Monitor efficiency and running costs

Optional Wired Remote Control

For installations where the main control panel is inconvenient to access (e.g., plant room installations), an optional wired remote control panel with 10-meter cable is available. This provides all the functionality of the main touchscreen in a convenient indoor location.

🛠️ Standard Installation Kit & Accessories

Every I-PAC PRO 28A includes:

✅ Anti-Vibration Mounts (4) – Rubber feet for ultra-quiet operation and reduced noise transmission
✅ Winter Cover – Vented weatherproof cover for off-season protection
✅ Condensate Drainage Kit – Adaptor and flexible hose for condensation management
✅ Water Union Connectors – Two 50mm female AND two 48.3mm female unions for flexible installation
✅ Comprehensive Installation Manual – 50-page guide with detailed instructions

Optional Accessories:

• Wired Remote Control Panel – 10-meter cable for convenient indoor control
• Air Sealing Strip – For indoor/plant room installations to prevent exhaust recirculation

❓ Frequently Asked Questions

How efficient is the I-PAC PRO 28A compared to other pool heaters?

The I-PAC PRO 28A achieves exceptional efficiency with a COP range of 7.2 to 20 in Perfect Mode (averaging 14.7 at 50% speed). This means for every 1 kW of electricity consumed, the heat pump produces up to 14.7 kW of heating. Compared to electric resistance heaters (COP ~1.0) or gas boilers (efficiency 80-90%), the I-PAC PRO 28A can reduce heating costs by 85-90%, delivering the same heat output for a fraction of the running cost.

Can this heat pump operate in winter temperatures?

Yes! The I-PAC PRO 28A is designed for true all-season operation with an ambient temperature range of -20°C to +43°C. Advanced defrost functions (both automatic and manual) ensure reliable performance even in harsh winter conditions. However, heating capacity does reduce as ambient temperature drops – at 15°C ambient, expect approximately 22.7 kW capacity compared to 32.5 kW at 27°C ambient.

How loud is the I-PAC PRO 28A during operation?

The I-PAC PRO 28A is exceptionally quiet thanks to its inverter technology and DC brushless fan motor. Sound levels range from 19.6 dB(A) to 30.2 dB(A) at 10 meters depending on operating mode. In Silence Mode, the unit produces just 19.6 dB(A) – quieter than a whisper and virtually inaudible from 10 meters away, making it ideal for residential settings and noise-sensitive locations.

What size pool is the 28A model suitable for?

For seasonal operation (March-November), the I-PAC PRO 28A is ideal for pools with 60-70 m² surface area (approximately 78-91 m³ volume). For year-round operation, it suits 50-60 m² pools (65-78 m³ volume). These recommendations assume in-ground construction, use of an insulated pool cover 20+ hours daily, and standard UK conditions. For precise sizing based on your specific circumstances, please consult the installation manual or contact a pool heating specialist.

Does the heat pump also provide pool cooling?

Yes! The I-PAC PRO 28A offers both heating and cooling functionality. It can cool your pool water down to 12°C, making it perfect for refreshing your pool during hot summer months. The cooling capacity is 15.4 kW at 35°C ambient air and 28°C water temperature. Simply select cooling mode on the control panel or app.

What is R32 refrigerant and why is it better?

R32 is an eco-friendly refrigerant with a Global Warming Potential (GWP) of 675 – approximately 68% lower than older R410A refrigerant (GWP 2,088). It’s classified as A2L (low toxicity, lower flammability), making it environmentally responsible and future-proof as regulations become stricter. R32 also provides excellent thermal properties, contributing to the heat pump’s exceptional efficiency.

How do I control the heat pump remotely?

The I-PAC PRO 28A features built-in WiFi connectivity and is compatible with the Pooltherm App (free download for iOS and Android). Once connected to your home WiFi network, you can monitor and control all heat pump functions from your smartphone – including temperature settings, operating modes, viewing real-time performance data, receiving fault alerts, and even performing firmware updates. Setup is straightforward using the touchscreen control panel.

What maintenance does the heat pump require?

The I-PAC PRO 28A requires minimal maintenance for optimal performance:

• Monthly: Check and clean evaporator fins (use soft brush), inspect for debris or obstructions, verify water flow
• Seasonally: Clean or replace pool filter, check condensate drain for blockages, inspect electrical connections
• Annually: Professional inspection recommended for refrigeration circuit and electrical systems
• Off-Season: Follow winterization procedure (drain water circuit, cover unit) if not operating year-round

The titanium heat exchanger and corrosion-resistant construction ensure long-lasting durability with minimal upkeep.

Can I run the heat pump 24/7?

Yes, the I-PAC PRO 28A is designed for continuous operation. In fact, running the heat pump 24/7 is often the most efficient approach, as it allows the unit to maintain temperature rather than recovering from significant temperature drops. The inverter technology enables the compressor to modulate power output down to 20% capacity, providing efficient “trickle heating” to maintain your desired temperature with minimal energy consumption.

What happens during a power cut?

The I-PAC PRO 28A features power-down memory, which means it will automatically restart when power is restored, returning to its previous settings and operating mode. This ensures your pool heating continues without manual intervention after brief power interruptions. For extended power cuts or electrical storms, it’s recommended to isolate the unit from mains power to protect electronic circuits.

Is professional installation required?

Yes, professional installation by qualified personnel is essential and required to maintain warranty validity. The installation involves electrical work (230V single-phase with specific RCD and circuit protection), plumbing connections, correct sizing of components, compliance with safety regulations (including R32 refrigerant handling and positioning requirements), and proper commissioning. Incorrect installation can result in poor performance, equipment damage, safety hazards, and warranty voidance.

What warranty is included?

The I-PAC PRO 28A includes a comprehensive 5-year on-site parts and labour warranty from Dantherm Group. This covers manufacturing defects and component failures under normal operating conditions. The warranty requires professional installation, adherence to operating guidelines, proper water chemistry maintenance (pH 7.2-7.8), and following winterization procedures when not in use. Refer to the installation manual for complete warranty terms and conditions.

How quickly will the heat pump heat my pool initially?

Initial heat-up time depends on several factors including pool volume, starting temperature, ambient air temperature, and whether you use a pool cover. As a general guide, the I-PAC PRO 28A can heat a typical 60 m³ pool by 8°C (e.g., 20°C to 28°C) in approximately 17-24 hours depending on ambient conditions (faster in warmer weather). Using Turbo Mode and ensuring your pool cover is in place will minimize heat-up time. See the Heat-Up Time Estimates section above for detailed calculations.

⚙️ Advanced Features & Technology

Electronic Expansion Valve (EEV)

The precision EEV technology provides superior refrigerant flow control compared to traditional thermostatic expansion valves, optimizing heat transfer efficiency across all operating conditions and improving COP performance.

Four-Way Valve Reverse Cycle Defrost

The sophisticated defrost system reverses refrigerant flow to rapidly clear ice build-up from the evaporator coil during low-temperature operation, ensuring consistent heating performance even in freezing conditions.

Soft Start Function

Reduces electrical surge during compressor startup, protecting your home’s electrical system and extending component lifespan by minimizing mechanical stress.

Comprehensive Protection Systems

Built-in safeguards include high/low pressure protection, water flow monitoring, temperature sensors, current protection, overheat protection, voltage monitoring, and fault code diagnostics – ensuring safe, reliable operation and easy troubleshooting.

Pool Pump Synchronization

Optional terminals (P1/P2) allow the heat pump to override your pool filter pump timer clock, ensuring water circulation whenever heating or cooling is required. The intelligent sampling feature (1-hour intervals) minimizes filter pump runtime while maintaining temperature.

📦 What’s in the Box?

• ✅ I-PAC PRO 28A Heat Pump Unit
• ✅ Installation Manual (comprehensive 50-page guide)
• ✅ Anti-Vibration Rubber Mounts (set of 4)
• ✅ Vented Winter Protection Cover
• ✅ Water Union Connectors (two 50mm female, two 48.3mm female)
• ✅ Condensate Drainage Kit (adaptor + flexible hose)

🌍 Environmental Responsibility

The I-PAC PRO 28A demonstrates Dantherm Group’s commitment to environmental sustainability:

• R32 Eco-Friendly Refrigerant – 68% lower GWP than R410A
• Energy Efficiency – Up to 1,470% efficient (COP 14.7), dramatically reducing carbon emissions
• Quality Construction – Designed for long service life, reducing waste
• Recyclable Materials – Aluminum alloy cabinet and components designed for end-of-life recycling
• Compliance – Meets EU F-Gas regulations and environmental standards

By choosing the I-PAC PRO 28A, you’re investing in a sustainable heating solution that minimizes environmental impact while maximizing performance.

🏆 About Dantherm Group

Dantherm Group is a leading manufacturer of high-performance climate control solutions with decades of engineering expertise. The I-PAC PRO range represents the latest evolution in pool heating technology, combining innovative inverter technology, smart connectivity, and exceptional build quality to deliver unmatched performance and reliability.

Quality Certifications:

• ISO 9001 Quality Management System
• ISO 14001 Environmental Management System
• CE Certified
• F-Gas Compliant

✨ Transform Your Pool Experience Today

The I-PAC PRO 28A represents the pinnacle of modern pool heating technology – combining exceptional efficiency, whisper-quiet operation, intelligent controls, and all-season reliability in one premium package. Whether you’re extending your swimming season or enjoying year-round pool comfort, this advanced inverter heat pump delivers outstanding performance with remarkable energy savings.

Key Investment Benefits:

• 💰 Up to 90% lower running costs compared to electric resistance heating
• 🔇 Near-silent operation perfect for residential settings
• 🌡️ True all-season capability from -20°C to +43°C
• 📱 Smart control from anywhere via Pooltherm App
• 🌿 Eco-friendly R32 refrigerant with low environmental impact
• 🛡️ 5-year comprehensive warranty for complete peace of mind
• ⚡ Future-proof technology with over-the-air firmware updates

Ready to experience premium pool heating? Contact your local Certikin stockist for pricing and availability, or speak with a pool heating specialist to discuss your specific requirements.