I-PAC PRO 10A Side-Outlet Inverter Heat Pump – Single Phase All-Year Pool Heating 🌡️

The smartest choice for ultra-quiet, energy-efficient pool heating that works even in extreme cold down to -20°C

Transform your swimming pool into a year-round oasis with the I-PAC PRO 10A – a premium inverter-driven heat pump from Dantherm (Calorex) that delivers exceptional heating performance with whisper-quiet operation. Whether you’re heating a residential pool in the depths of winter or maintaining perfect temperatures throughout summer, this advanced side-outlet design combines cutting-edge inverter technology, eco-friendly R32 refrigerant, and smart WiFi controls to give you complete comfort with minimal energy consumption.

Perfect for homeowners with space constraints or installations requiring side-plumbing configurations, the I-PAC PRO 10A fits where traditional heat pumps can’t, without compromising on performance or reliability.

Unmatched All-Weather Performance Unlike conventional heat pumps that struggle in cold weather, the I-PAC PRO 10A operates reliably in air temperatures from -20°C to +43°C. This means you can heat your pool even during harsh UK winters, extending your swimming season by months or enabling true year-round swimming. The advanced defrost system ensures consistent performance without manual intervention.

Whisper-Quiet Operation for Residential Peace At just 16.4 dB(A) at 10 meters in Silence Mode, this is one of the quietest heat pumps on the market – quieter than a whisper! You can run it day or night without disturbing your family, neighbors, or garden relaxation. The new cabinet design reduces noise by up to 5dB compared to previous models, making it perfect for residential gardens and noise-sensitive locations.

Smart Energy Savings with Inverter Technology Full inverter technology adjusts compressor and fan speed dynamically to match your exact heating demand. This means the heat pump only uses the power it needs – resulting in up to 50% energy savings compared to on/off heat pumps. With COP values reaching an impressive 20.1 in Perfect Mode, you get exceptional efficiency that translates directly to lower running costs.

Compact Side-Outlet Design The unique side-outlet configuration (946 × 427 × 660 mm) makes this heat pump ideal for tight plant rooms, low-clearance areas, or installations where traditional top-discharge models won’t fit. The compact footprint doesn’t sacrifice power – delivering up to 14.5 kW heating capacity.

Control From Anywhere with WiFi Built-in WiFi and the dedicated Pooltherm App (iOS & Android) let you monitor and control your pool temperature from anywhere in the world. Adjust settings, check performance, receive alerts, and even update firmware remotely – all from your smartphone.

Built to Last The titanium heat exchanger resists corrosion from saltwater and chlorinated pools, ensuring decades of reliable service. The weatherproof aluminum alloy cabinet withstands the toughest outdoor conditions, while anti-vibration mounts and a soft-start function protect both the heat pump and your electrical system.

Key Features That Make a Difference 🎯

Full Inverter Compressor Technology Advanced DC twin rotary inverter compressor with DC brushless fan motor provides stepless capacity adjustment from 20% to 100%. The system automatically optimizes performance based on ambient conditions and pool temperature, delivering exactly the heating you need while minimizing energy consumption.

Three Intelligent Operating Modes

Turbo Mode ⚡ Maximum heating capacity (100% to 20%) for rapid pool heating. Ideal when you need to heat your pool quickly after colder periods or for initial heating in spring. Delivers 14.5 kW at optimal conditions.

Perfect Mode 🎯 Energy-optimized operation (80% to 20%) with intelligent adjustment based on ambient air and pool water temperatures. This mode balances speed with efficiency, providing the best long-term running costs. Average COP of 14.8 at 50% speed means exceptional efficiency.

Silence Mode 🔇 Ultra-quiet operation (50% to 20%) perfect for nighttime heating or noise-sensitive neighborhoods. Reduces sound levels to an incredibly quiet 16.4 dB(A) at 10 meters – quieter than rustling leaves!

Eco-Friendly R32 Refrigerant Unlike older heat pumps using high-GWP refrigerants, the I-PAC PRO 10A uses R32 with a Global Warming Potential (GWP) of just 675 – significantly lower than R410A. This A2L-rated refrigerant meets the latest EU F-Gas regulations while delivering superior efficiency and performance. The 1.25 kg charge has a CO2 equivalent of just 0.844 tons.

Premium Titanium Heat Exchanger High-efficiency twisted titanium heat exchanger provides exceptional heat transfer while resisting corrosion from saltwater pools (up to 35,000 ppm salt), chlorinated water, and harsh pool chemicals. This ensures long service life even in demanding applications.

Intelligent Protection Systems

Built-in safety features protect your investment:

• High and low pressure protection
• Water flow monitoring
• Frost protection mode
• Over-temperature protection
• Phase sequence protection (electrical)
• Anti-short cycle delay
• Comprehensive fault reporting with diagnostic codes

Smart Defrost Technology Automatic reverse-cycle defrost using a four-way valve ensures efficient operation even in freezing conditions. When frost builds up on the evaporator coil, the system automatically defrosts without interrupting your heating schedule. Manual defrost option available for extreme conditions.

Intuitive Touchscreen Control Panel Large, bright touchscreen displays:

• Real-time inlet and outlet water temperatures
• Current power consumption or compressor speed
• Selected operating mode
• WiFi connection status
• Set point temperature
• Protection and fault codes
• Comprehensive menu system for advanced settings

Remote Control Ready Optional wired remote control panel with 10-meter cable allows convenient control from inside your home or plant room. Perfect for installations where the heat pump is located away from the main living area.

Pool Pump Synchronization Smart terminals (P1/P2) allow the heat pump to control your filtration pump, ensuring water flows only when needed for heating. This feature can significantly reduce pump running time and energy costs while maintaining perfect pool temperature. Three synchronization modes available.

Technical Specifications 📊

Performance Data – Optimal Conditions (Air 27°C / Water 27°C / RH 80%)

Mode	Heating Capacity	COP Range	Average COP at 50% Speed
Turbo Mode	14.5 kW	7.5 – 20.1	14.8
Perfect Mode	11.6 kW	7.5 – 20.1	14.8

Performance Data – Typical UK Spring/Autumn (Air 15°C / Water 26°C / RH 70%)

Mode	Heating Capacity	COP Range	Average COP at 50% Speed
Turbo Mode	9.6 kW	5.2 – 8.6	7.4
Perfect Mode	7.8 kW	5.2 – 8.6	7.4

Cooling Performance (Air 35°C / Water 28°C / RH 80%)

Cooling Capacity
6.7 kW

Electrical Specifications

Parameter	Value
Power Supply	230V Single Phase 50Hz
Rated Input Power	0.22 – 1.85 kW
Rated Input Current	0.96 – 8.04 A
Maximum Input Current	12.5 A
Required Fuse/MCB	16A (Type C MCB or aM Fuse)
RCD Rating	30mA Type F
Operating Voltage Range	207V – 253V
Frequency Range	47.5 – 52.5 Hz

Water Circuit Specifications

Parameter	Value
Recommended Flow Rate	3 – 4 m³/h
Water Connections	48.3mm (1½”) or 50mm Female Union
Water Pressure Drop	5 kPa
Operating Water Temp Range	12°C – 40°C

Environmental & Physical Specifications

Parameter	Value
Operating Air Temperature	-20°C to +43°C
Sound Pressure @ 10m	16.4 – 24.8 dB(A)
Maximum Airflow	4,000 m³/h
Refrigerant Type	R32 (A2L)
Refrigerant Charge	1.25 kg
CO2 Equivalent	0.844 tons
GWP Rating	675
Dimensions (W × D × H)	946 × 427 × 660 mm
Net Weight	65 kg
Minimum Room Area Required	13.3 m²

Compliance & Warranty

• CE Certified – Meets all EU safety and performance standards
• EMC Directive 2014/30/EU compliant
• F-Gas Regulation compliant
• 5-Year On-Site Parts & Labour Warranty (subject to terms and conditions)

Pool Sizing Guide 🌊

How to choose the right heat pump for your pool

The I-PAC PRO 10A is suitable for small to medium-sized residential pools. Use the guidance below to determine if this model meets your needs:

Seasonal Heating (March – November, approximately 38-40 weeks)

Pool Surface Area Coverage:

• Up to 30 m² (320 sq ft): Excellent performance, rapid heating
• 30-40 m² (320-430 sq ft): Good performance for target temp 26-28°C
• 40-50 m² (430-540 sq ft): Adequate for lower target temperatures (24-26°C)

Assumptions: In-ground pool, 1.3m average depth, insulated cover used 20+ hours/day, sheltered location, 24/7 heat pump operation

All-Year-Round Heating

For year-round swimming, the IPRO10A is best suited for:

• Up to 25 m² (270 sq ft): Maintains 28°C even in winter
• 25-35 m² (270-375 sq ft): Suitable for target temp 26-28°C
• 35-40 m² (375-430 sq ft): Best for lower target temps in winter

📄 Documentation & Downloads

Complete installation, operation, and maintenance support at your fingertips

I-PAC PRO Installation Manual (opens in new tab) 📥 Comprehensive 48-page owner installation manual covering electrical connections, plumbing requirements, WiFi setup, operation modes, maintenance procedures, winterization guidelines, and full troubleshooting guide. Includes detailed wiring diagrams, clearance requirements, and warranty terms. Essential reading for installers and owners. (PDF, 48 pages)

I-PAC PRO Product Brochure (opens in new tab) 📥 Technical brochure featuring complete specifications for the entire I-PAC PRO range, pool sizing charts for UK conditions, dimensional drawings, performance data at multiple operating conditions, and comparative analysis tools. Includes example sizing graphs for both seasonal and all-year-round pool heating. (PDF, Technical Brochure)

💡 Tip: Download these documents before installation to ensure proper setup and optimal performance.

Important Sizing Factors

✅ Pool Volume: Larger pools require proportionally more heating capacity ✅ Pool Cover: An insulated cover can reduce heating demand by 50-70% ✅ Exposure: Sheltered pools lose less heat than exposed installations ✅ Target Temperature: Higher temperatures require more capacity ✅ Usage Pattern: Weekend-only heating may allow smaller heat pumps ✅ Climate: Your local climate significantly affects sizing requirements

⚠️ Note: For pools outside these size ranges, consider the larger I-PAC PRO 16A (up to 60 m²) or I-PAC PRO 22A (up to 80 m²) models.

💡 Professional Sizing Recommendation: For accurate sizing outside standard parameters, or for commercial installations, contact a qualified pool heating specialist who can assess your specific conditions including pool construction, local climate, desired swimming season, and usage patterns.

Estimated Heat-Up Times ⏱️

How long will it take to heat my pool?

Understanding heat-up times helps you plan your pool heating schedule and set realistic expectations. Use these estimates as a guide:

Standard Formula Used

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

Heat-Up Time Estimates for I-PAC PRO 10A

Scenario 1: Optimal Conditions (Air 27°C, Summer) Using 14.5 kW heating capacity (Turbo Mode)

Pool Volume	5°C Rise	10°C Rise	15°C Rise
20 m³ (20,000L)	8 hours	16 hours	24 hours
30 m³ (30,000L)	12 hours	24 hours	36 hours
40 m³ (40,000L)	16 hours	32 hours	48 hours
50 m³ (50,000L)	20 hours	40 hours	60 hours

Scenario 2: Typical UK Spring/Autumn (Air 15°C) Using 9.6 kW heating capacity (Turbo Mode)

Pool Volume	5°C Rise	10°C Rise	15°C Rise
20 m³ (20,000L)	12 hours	24 hours	36 hours
30 m³ (30,000L)	18 hours	36 hours	54 hours
40 m³ (40,000L)	24 hours	48 hours	72 hours
50 m³ (50,000L)	30 hours	60 hours	90 hours

Scenario 3: Cold Weather (Air 5°C, Early Spring/Late Autumn) Using approximately 7 kW heating capacity

Pool Volume	5°C Rise	10°C Rise	15°C Rise
20 m³ (20,000L)	17 hours	33 hours	50 hours
30 m³ (30,000L)	25 hours	50 hours	75 hours
40 m³ (40,000L)	33 hours	66 hours	99 hours
50 m³ (50,000L)	41 hours	83 hours	124 hours

Important Disclaimers ⚠️

These are theoretical estimates only. Actual heat-up times will vary significantly based on:

• Heat Loss: Uncovered pools lose heat continuously to evaporation, convection, and radiation
• Wind Exposure: Wind dramatically increases heat loss
• Pool Cover: An insulated cover can reduce heat-up time by 40-60%
• Water Chemistry: Proper pH and chemical balance improves efficiency
• Ambient Temperature Variations: Nighttime cooling slows heating progress
• Pool Construction: In-ground pools with insulation retain heat better
• Water Flow Rate: Optimal flow (3-4 m³/h) is essential for rated performance
• Initial Water Temperature: Starting from very cold water takes proportionally longer

💡 Real-World Tip: Initial heating from cold (first fill or spring start-up) typically takes 2-3 times longer than these estimates. Once at temperature, maintaining heat requires much less energy.

🎯 Best Practice: Use Turbo Mode for initial heat-up, then switch to Perfect Mode for efficient temperature maintenance.

Running Cost Comparison 💰

How much will it cost to heat my pool?

The I-PAC PRO 10A’s exceptional efficiency translates directly to significant savings on your energy bills compared to alternative heating methods.

Annual Heating Cost Estimates

Based on a typical 30 m³ pool heated to 28°C for 6 months (April-September):

Heating Method	Estimated Annual Cost*	CO2 Emissions
I-PAC PRO 10A Heat Pump	£300 – £500	600 – 1,000 kg
Electric Resistance Heater	£1,800 – £2,400	3,600 – 4,800 kg
Gas Boiler (Natural Gas)	£800 – £1,200	2,400 – 3,600 kg
Oil Boiler	£1,000 – £1,500	3,000 – 4,500 kg
LPG Boiler	£1,200 – £1,800	2,700 – 4,000 kg

*Based on UK 2024 average energy prices: Electricity £0.24/kWh, Gas £0.06/kWh, Oil £0.07/kWh, LPG £0.08/kWh. Actual costs vary by supplier and tariff.

Why Heat Pumps Are More Economical

COP Advantage: With an average COP of 7.4 under typical UK conditions, the heat pump delivers 7.4 kW of heating for every 1 kW of electricity consumed. This means you’re essentially getting 85% of your heating energy “free” from the ambient air.

Example Calculation:

• To deliver 10 kWh of heating to your pool:
  • Heat Pump: Uses 1.35 kWh electricity = £0.32
  • Electric Heater: Uses 10 kWh electricity = £2.40
  • Gas Boiler (80% efficient): Uses 12.5 kWh gas = £0.75

Payback Period: For a typical installation replacing an electric heater, the energy savings alone often pay for the heat pump within 2-3 seasons.

💡 Money-Saving Tips:

• Use an insulated pool cover to reduce running costs by 50-70%
• Heat during off-peak electricity hours if on a tariff with variable rates
• Maintain optimum water chemistry for best efficiency
• Keep the evaporator fins clean for maximum heat transfer
• Use Perfect Mode for day-to-day operation – slightly slower but more economical

Installation Requirements 🔧

What you need to know before installation

Electrical Requirements

• Dedicated Circuit: 16A Type C MCB or aM fuse required
• RCD Protection: 30mA Type F RCD protecting only the heat pump
• Isolator: All-pole isolator within 2 meters and in clear line of sight
• Cable Specification: Minimum 2.5mm² three-core (L, N, E)
• Voltage Stability: Supply must remain within 207-253V even during compressor start
• IP Rating: IP44 minimum for outdoor electrical connections

⚡ Important: All electrical work must comply with BS 7671 (IEE Wiring Regulations) and be carried out by a qualified electrician.

Plumbing Requirements

Water Flow: 3-4 m³/h (50-67 liters/minute) mandatory for rated performance Bypass Valve: Required to achieve correct flow rate Water Connections: 48.3mm or 50mm female unions (supplied) Pipe Type: Solid pipes required (not flexible hose) with adequate support Filtration: Must be installed after the filter and before chemical dosing Isolation Valves: Recommended on inlet and outlet for maintenance Drain Provision: Winterization drain points required in cold climates

Pool Water Quality Requirements:

Parameter	Required Range
pH	7.2 – 7.8
Total Alkalinity (as CaCO₃)	80 – 120 ppm
Total Hardness (as CaCO₃)	150 – 250 ppm
Total Dissolved Solids	Max 1,000 ppm
Maximum Salt Content	35,000 ppm
Free Chlorine (Domestic)	1 – 2 ppm
Free Chlorine (Commercial)	3 – 6 ppm
Maximum Copper Content	1 ppm

💧 Water Quality Warning: Operating outside these parameters will void the warranty and may cause premature heat exchanger failure.

Physical Installation

Clearance Requirements (Minimum):

• Front (Air Outlet): 700mm clear space
• Sides (Air Inlets): 500mm each side
• Rear: 750mm clear space
• Top: 700mm clear space
• Combined Corner Radius: 1,350mm where two obstructions meet

Mounting Surface: Level concrete base or secure mounting brackets using M10 corrosion-resistant bolts. Anti-vibration mounts supplied.

Condensate Drainage: Drainage kit (supplied) must be connected to drain or soak-away before installation.

Safety Distance: Minimum 3.5 meters from pool edge per electrical safety regulations.

Indoor Installation Minimum Free Area: 0.45 m² exhaust grille area required if wall-mounted with exhaust passing through wall.

Room Size Requirements (R32 Refrigerant Safety)

Due to R32 A2L refrigerant classification:

Minimum Floor Area Required: 13.3 m²

This applies to:

• Indoor pool hall if heat pump is indoors
• Combined plant room + pool hall area if plant room is ventilated to pool hall
• No limit if heat pump is outdoors (outside space is unlimited)

⚠️ Safety Note: These requirements comply with EN 378-1:2016 for A2L refrigerants. Do not install in rooms smaller than the minimum area.

Environmental Considerations

Do NOT Install:

• In corrosive environments (coastal salt spray, chemical storage areas)
• Near open flames or ignition sources
• Where floor area is less than 13.3 m²
• In areas with restricted airflow
• Under awnings or structures that restrict exhaust flow
• Where exhaust air can recirculate to inlets

Recommended Installation:

• Sheltered outdoor location with good airflow
• Protected from direct sunlight (extends component life)
• Away from bedrooms and noise-sensitive areas
• With clear path for service access
• On stable, level, well-drained surface

Operating Instructions 🎮

First-Time Start-Up

1. Pre-Operation Checklist:
   • ✅ Pool circulation pump is running with confirmed water flow (3-4 m³/h)
   • ✅ All electrical connections verified and RCD tested
   • ✅ Water inlet and outlet blanking discs removed
   • ✅ No water leaks visible
   • ✅ Air inlets and outlets clear of obstructions
   • ✅ Condensate drain connected and clear
2. Power On Sequence:
   • Turn on isolation switch
   • Heat pump displays firmware codes (normal)
   • Screen returns to locked status
   • Press and hold power button for 3 seconds to unlock screen
3. Initial Settings:
   • Press power button to start heat pump
   • Use ▲/▼ buttons to set desired temperature (typically 26-28°C)
   • Select operating mode (Heating/Cooling/Auto)
   • Choose performance mode (Turbo/Perfect/Silence)
   • Wait 3 minutes for compressor start delay
   • Fan runs for 1 minute before compressor starts

Daily Operation

Screen Lock/Unlock: Press and hold any button for 3 seconds to unlock. Screen auto-locks after 30 seconds of inactivity.

Mode Selection:

• Heating Mode (🔥): 18°C to 40°C range – for cold weather
• Cooling Mode (❄️): 12°C to 30°C range – for hot summer days
• Auto Mode (🔄): 12°C to 40°C range – automatically switches between heating and cooling

Performance Modes:

• Turbo ⚡: Maximum speed for rapid heating (100-20% capacity)
• Perfect 🎯: Optimized efficiency with intelligent adjustment (80-20% capacity)
• Silence 🔇: Ultra-quiet operation ideal for nighttime (50-20% capacity)

Control Panel Icons:

• WiFi Symbol: Indicates connection status (solid = connected, flashing = connecting)
• Lock Symbol: Screen is locked when illuminated
• Power Display: Shows current input power (kW) or compressor speed (%)
• Temperature Readings: Inlet water temp (left) and outlet water temp (right)

WiFi & App Setup

1. Download Pooltherm App: Available on iOS App Store and Google Play
2. Register Account: Create account using email address
3. Unlock Screen: Press any button for 3 seconds
4. Activate Pairing Mode: Press WiFi button for 3 seconds (beep confirms)
5. WiFi Icon Flashes Rapidly: Heat pump is ready to pair
6. Follow App Instructions: Enter WiFi SSID and password
7. Connection Complete: WiFi icon stops flashing and remains solid

App Features:

• Remote temperature control
• Real-time monitoring of inlet/outlet temps
• Power consumption tracking
• Operating mode selection
• Timer programming
• Fault code notifications
• Over-the-air firmware updates

💡 Tip: To reset WiFi connection, press and hold WiFi button for 10 seconds until icon flashes slowly, then restart heat pump using isolator switch.

Defrost Operation

Automatic Defrost: In heating mode below 5°C ambient, frost may form on the evaporator coil. The heat pump automatically defrosts using reverse-cycle operation. During defrost:

• Heating symbol flashes on display
• Large amount of steam/mist may be released (normal)
• Process takes 3-10 minutes
• Heat pump returns to normal operation automatically

Manual Defrost: If frost is visible and automatic defrost hasn’t triggered:

• Compressor must have run for at least 10 minutes
• Minimum 35 minutes between forced defrosts
• Press and hold MODE + ▲ buttons for 5 seconds
• Heating symbol flashes during defrost
• Do not use any other defrosting methods

⚠️ Never pour water on the evaporator or use tools to remove ice – this will damage the coils.

Timer Functions (Optional Remote Control Only)

Setting Time-On Timer:

1. Press and hold Timer button for 10 seconds
2. “ON” flashes on display
3. Press Timer button to select single (one-time) or cycle (daily repeat)
4. Use ▲/▼ to set desired ON time
5. Press Timer button to confirm and move to OFF setting

Setting Time-Off Timer:

1. “OFF” flashes on display
2. Press Timer button to select single or cycle
3. Use ▲/▼ to set desired OFF time
4. Press Timer button twice to save and exit

Cancel Timer: Press and hold Timer button for 10 seconds, then press Timer button to cancel.

Time Calibration: Press and hold Timer button for 5 seconds to access time setting. Use ▲/▼ to adjust current time.

Energy-Saving Operation Tips

🌿 Maximize Efficiency:

• Use Perfect Mode for daily operation (highest COP)
• Heat during warmer parts of the day when possible
• Maintain pool cover whenever not swimming
• Keep target temperature at 27°C instead of 29°C (saves 15-20% energy)
• Ensure optimal water flow (3-4 m³/h) is maintained
• Keep evaporator fins clean from leaves and debris
• Maintain correct water chemistry to prevent scale buildup

Maintenance Schedule 🛠️

Regular maintenance ensures optimal performance, extends equipment life, and maintains warranty coverage.

Monthly Maintenance (Owner)

✅ Visual Inspection:

• Check for unusual noises or vibrations
• Inspect water connections for leaks
• Verify condensate drainage is clear
• Check pool water chemistry and adjust if needed
• Clean debris from air inlet grilles

✅ Evaporator Cleaning:

• Gently brush fins with soft brush (wear gloves – fins are sharp)
• Remove leaves, grass clippings, and debris
• Ensure air can flow freely through all fins
• Do not use high-pressure water directly on fins

✅ General Checks:

• Verify WiFi connection is functioning
• Check display for any fault codes
• Ensure water flow remains in 3-4 m³/h range
• Inspect winterization cover (if seasonal use)

Quarterly Maintenance (Owner)

✅ Deep Cleaning:

• Clean heat pump cabinet with mild household detergent
• Check all electrical connections are secure (power OFF!)
• Inspect condensate drain hose for blockages
• Lubricate anti-vibration mounts if necessary

✅ Water System:

• Backwash filter thoroughly
• Check bypass valve setting for correct flow
• Inspect water unions for wear or corrosion
• Verify no air leaks in plumbing connections

Annual Maintenance (Professional Service Required)

✅ Professional Inspection Must Include:

• Refrigeration circuit inspection by F-Gas certified technician
• Electrical system testing and certification
• Compressor performance assessment
• Refrigerant pressure checks
• Internal component inspection
• Software/firmware updates if available
• Complete system performance test
• Warranty compliance documentation

⚠️ Important: Annual professional servicing is mandatory to maintain warranty coverage. Keep all service records.

Seasonal Maintenance

Pre-Winter (If Seasonal Operation):

• Complete winterization procedure (see manual)
• Drain water circuit completely
• Flush with clean tap water
• Spray terminals with moisture-repellent (WD-40)
• Fit vented winter cover
• Remove fuses and store safely

Spring Start-Up:

• Remove winter cover and clean evaporator fins
• Remove plastic bags from water connections
• Reconnect plumbing and establish water flow (15+ minutes)
• Replace fuses and reconnect power
• Verify all settings and start heat pump
• Monitor performance for first 24-48 hours

Maintenance Don’ts ❌

• ❌ Never use petroleum-based solvents or thinners for cleaning
• ❌ Never use high-pressure washers on evaporator fins
• ❌ Never touch fins with bare hands (sharp edges)
• ❌ Never attempt refrigerant circuit work without F-Gas certification
• ❌ Never block or restrict airflow during operation
• ❌ Never modify internal control settings or parameters
• ❌ Never use plastic sheeting for winter cover (causes condensation)
• ❌ Never operate with pool water chemistry outside specified ranges

Backwash Procedure

When performing routine filter backwash:

1. Put heat pump in standby mode or turn off completely
2. Wait for fan to stop running
3. Isolate heat pump from pool water using isolation valves
4. Perform backwash on filter system
5. Restore water flow through heat pump
6. Verify water is flowing (check flow meter if fitted)
7. Take heat pump out of standby or switch back on

Troubleshooting Guide 🔍

Common issues and solutions before calling for service

Display Shows “Locked” Screen

Issue: Cannot operate buttons Solution: Press and hold any button for 3 seconds to unlock screen

Heat Pump Won’t Start

Possible Causes:

• ⚡ No Power: Check isolation switch, fuses, and circuit breaker
• 🔒 Screen Locked: Unlock screen and press power button
• ⏰ Compressor Delay: Wait for 3-minute start delay protection
• 🌡️ Temperature Already Met: Check if pool is at set temperature
• 🌊 No Water Flow: Verify circulation pump is running (E3 code)
• ⏲️ Timer Active: Check if timer is preventing start (remote only)

Poor Heating Performance

Possible Causes:

• 🎯 Wrong Mode: Ensure heat mode (🔥) is selected, not cool mode
• 🌿 Blocked Evaporator: Clean fins and remove debris
• 🚫 Airflow Obstruction: Check air inlet/outlet clearances
• ⏱️ Compressor Delay: Wait for 3-minute protection to reset
• 📉 Low Set Temperature: Increase target temperature
• ❄️ Cold Ambient: Heating capacity reduces below 10°C air temp
• 🌊 Inadequate Flow: Verify 3-4 m³/h flow rate (E6 code)
• 🧪 Poor Water Chemistry: Scale buildup reduces efficiency

Heat Pump Runs But No Heating

Possible Causes:

• 🎯 Set Temperature Too Low: Raise desired temperature
• ⏱️ Compressor Start Delay: Wait 3 minutes from power-on
• 🔄 Defrost Cycle: Heat indicator flashing (automatic, normal)
• 🌡️ Temperature Reached: Pool at set temperature (standby mode)
• ❄️ Cooling Mode Selected: Change from cool to heat mode

Unusual Noises

White Noise/Rushing Water Sound: Normal refrigerant flow sound Clicking Every 3 Minutes: Normal safety timer relay Loud Steam Release: Normal during defrost cycle Continuous Rattling: Check anti-vibration mounts are secure High-Pitched Whine: May indicate low water flow – check circulation pump

Water Leaking from Base

Likely Cause: Condensation during heating operation (normal) During Heating: Water vapor condenses on cold evaporator and drains from base Solution: Ensure condensate drain hose is connected and draining properly If Excessive: Check water connections are tight and gaskets intact

White Smoke/Steam from Unit

Cause: Automatic defrost cycle in progress Status: Completely normal operation in cold weather Duration: 3-10 minutes, then returns to normal heating Action: No action required – do not turn off heat pump

WiFi Won’t Connect

Solutions:

1. Verify router is within range (maximum 15m through one wall)
2. Check WiFi password entered correctly (case-sensitive)
3. Ensure router is using 2.4GHz network (5GHz not supported)
4. Reset WiFi: Hold WiFi button 10 seconds, restart heat pump
5. Try manual pairing instead of automatic pairing
6. Check router firewall isn’t blocking connection
7. Restart router and try pairing again

Protection Codes (Not Faults)

These codes indicate external conditions preventing operation:

Code	Meaning	Solution
E3	No water flow detected	Check circulation pump and water flow
E4	Three-phase sequence wrong	Electrician to correct phase connections
E5	Voltage out of range (207-253V)	Check power supply quality
E6	Low water flow (high temp difference)	Increase flow rate to 3-4 m³/h
Eb	Ambient temp out of range (<-20°C or >43°C)	Wait for suitable conditions
Ed	Frost protection active	Heat pump preventing freeze damage (automatic)

Fault Codes (Require Service)

If these codes appear, contact your installer or Dantherm Service:

Sensor Faults (P Series):

• P0 – Controller communication failure
• P1 – Water inlet sensor fault
• P2 – Water outlet sensor fault
• P3 – Gas exhaust temp sensor fault
• P4 – Evaporator coil sensor fault
• P5 – Gas return temp sensor fault
• P6 – Cooling coil sensor fault
• P7 – Ambient temp sensor fault
• P8 – Cooling plate sensor fault
• P9 – Current sensor fault
• PA – Memory failure

System Faults (E/F Series):

• E1 – High pressure alarm
• E2 – Low pressure alarm
• E7 – Water outlet temp out of range
• E8 – High exhaust temperature
• EA – Heat exchanger over-temp
• F1-F9 – Various inverter/compressor faults
• FA/Fb – Power module faults

Winterization & Storage 🥶

Essential procedure for protecting your investment during cold months

When to Winterize

Winterization is mandatory if:

• You will not be using the pool for extended periods in winter
• Ambient temperatures may drop below 0°C
• The heat pump will not be running continuously during freezing weather
• You’re closing the pool for the season

⚠️ Critical Warning: Failure to winterize properly will void the warranty if frost damage occurs. Water freezing in the heat exchanger can cause catastrophic damage costing thousands to repair.

Winterization Procedure (Step-by-Step)

⚡ Safety First:

1. Switch OFF heat pump using control panel
2. Switch OFF heat pump isolator
3. Remove external fuses and store safely away from heat pump
4. Confirm pool circulation pump is switched OFF

🌊 Water Drainage: 5. Disconnect pool water inlet and outlet pipework from heat pump 6. Allow all water to drain from heat exchanger 7. Connect garden hose to outlet connection 8. Flush heat exchanger with clean tap water for 10+ minutes 9. Allow complete drainage – tilt unit slightly if needed to drain fully 10. Cover both inlet and outlet connections with plastic bags secured with elastic bands

🔧 Component Protection: 11. Remove side access panels to access terminal box 12. Spray inside terminal box with moisture-repellent aerosol (WD-40 or similar) 13. Refit side panels ensuring weather seals are intact

🛡️ Weather Protection: 14. Clean evaporator fins gently with soft brush 15. Cover entire heat pump with supplied vented winterization cover 16. Ensure cover is secure but allows airflow (never use plastic sheeting) 17. Store instruction manual and control panel documentation safely indoors

Spring Re-commissioning Procedure

Preparation:

1. Remove winter cover and store for next year
2. Remove plastic bags from water connections
3. Inspect heat pump for any visible damage or corrosion
4. Clean evaporator fins with soft brush if needed
5. Check anti-vibration mounts are secure

Water System Restart: 6. Reconnect pool water inlet and outlet pipework 7. Check all water connections are tight 8. Start circulation pump and run for 15+ minutes 9. Check for leaks around all connections 10. Verify water flow rate is 3-4 m³/h

Electrical Restart: 11. Replace fuses in isolation switch 12. Switch on isolator 13. Unlock control panel 14. Press power button to start heat pump 15. Verify set temperature is correct 16. Monitor operation for first 24-48 hours

Water Chemistry: 17. Test pool water chemistry immediately 18. Adjust pH to 7.2-7.8 range 19. Balance alkalinity and hardness 20. Check daily for first week of operation

Storage Requirements (If Not Winterized in Place)

If storing heat pump indoors or moving to storage:

Environment:

• Floor area must exceed 13.3 m² (R32 refrigerant safety requirement)
• Store upright ALWAYS – never lay flat or on side
• Dry, well-ventilated location
• Protected from frost if contains any residual water
• Away from ignition sources and flammable materials
• No corrosive atmosphere

Stacking:

• Maximum 3 units high for 10A and 16A models
• Use suitable pallet and secure properly
• Industrial forklift required for stacking/unstacking

If Laid Down During Transport:

• Allow heat pump to stand upright for 1 hour minimum before powering on
• This allows refrigerant oil to drain back to compressor
• Failure to wait can cause permanent compressor damage

Frequently Asked Questions ❓

General Operation Questions

Q1: What size pool can the I-PAC PRO 10A heat?

A: For seasonal heating (March-November), the IPRO10A is ideal for pools up to 40 m² (430 sq ft) surface area when targeting 26-28°C. For all-year-round heating, it’s best suited for pools up to 30 m² (320 sq ft). Actual suitability depends on many factors including pool cover usage, exposure, depth, and local climate. An insulated cover dramatically improves performance and reduces running costs.

Q2: How long does it take to heat my pool?

A: This varies significantly based on pool volume, temperature rise needed, and ambient conditions. As a guide, a 30 m³ pool might take 24-36 hours to rise 10°C in typical UK spring weather (15°C air), or 16-24 hours in summer (27°C air). Initial heat-up from cold takes 2-3 times longer than these estimates. Use Turbo Mode for fastest heating, then switch to Perfect Mode to maintain temperature efficiently.

Q3: Can I run the heat pump 24/7?

A: Yes, the I-PAC PRO 10A is designed for continuous operation. In fact, running 24/7 in Perfect Mode is more efficient than intermittent operation because the heat pump works hardest during initial warm-up. The inverter technology continuously adjusts capacity to match demand, so it won’t waste energy once temperature is reached. For maximum quiet operation at night, switch to Silence Mode.

Q4: Will it work in winter?

A: Yes! The I-PAC PRO 10A operates in air temperatures from -20°C to +43°C, making it suitable for all-year-round pool heating in UK climates. However, heating capacity reduces as air temperature drops – at 5°C ambient you’ll get approximately 9.3 kW compared to 14.5 kW at 27°C. This is normal for all heat pumps. The automatic defrost system ensures reliable operation even in freezing conditions.

Q5: How much does it cost to run?

A: Running costs depend on pool size, target temperature, ambient conditions, and electricity tariff. For a typical 30 m³ pool heated to 28°C from April-September, expect annual costs of £300-500 at UK 2024 average electricity prices (£0.24/kWh). This is 75-85% cheaper than electric resistance heating and 40-60% cheaper than gas heating. Using a pool cover and running in Perfect Mode maximizes savings.

Installation Questions

Q6: Can I install this heat pump myself?

A: Electrical work must be completed by a qualified electrician to comply with BS 7671 regulations and maintain warranty coverage. Plumbing can be DIY if you’re competent, but refrigerant circuit work requires an F-Gas certified technician. Many installations are DIY-friendly for the plumbing and positioning, with professional help for electrical and commissioning. Professional installation is recommended for warranty compliance and optimal performance.

Q7: How far from my pool can I install it?

A: Electrical safety regulations require a minimum 3.5 meters from the pool edge. Beyond this minimum, you can locate the heat pump as far as needed, but keep pipe runs as short as practical to minimize heat loss. Insulate all pipes. Maximum recommended distance is 15-20 meters for residential installations. Longer distances require larger diameter piping and may reduce flow rate.

Q8: Can I install it indoors?

A: Yes, but the room must exceed 13.3 m² floor area (R32 refrigerant safety requirement). The room must have adequate ventilation for airflow – either open to outside space or with a suitable wall opening. When wall-mounted with exhaust ducted through wall, you need minimum 0.45 m² free exhaust area. The optional air sealing strip helps prevent recirculation. Indoor installation often requires the optional remote control panel since the main controls will face the wall.

Q9: How loud is it really?

A: At 16.4-24.8 dB(A) at 10 meters, it’s one of the quietest heat pumps available. In Silence Mode at 16.4 dB(A), it’s quieter than a whisper (20 dB) or rustling leaves (10-20 dB). Even in Turbo Mode at 24.8 dB(A), it’s quieter than a quiet bedroom (25-30 dB). For context, normal conversation is 60 dB. Most users report they can barely hear it running from 10 meters away, making it suitable for residential gardens and noise-sensitive locations.

Q10: What electrical supply do I need?

A: You need a dedicated 230V single-phase circuit protected by a 16A Type C MCB or aM fuse, plus a 30mA Type F RCD. The supply must remain within 207-253V even during compressor start. An all-pole isolator within 2 meters of the heat pump is mandatory. Total maximum current draw is 12.5A. Most modern UK homes can easily accommodate this requirement. Consult a qualified electrician to verify your supply capacity.

Performance & Efficiency Questions

Q11: What does COP mean and why does it matter?

A: COP (Coefficient of Performance) measures how efficiently the heat pump converts electrical energy to heating energy. A COP of 7.4 means you get 7.4 kW of heating for every 1 kW of electricity consumed – essentially 85% “free” energy from the air. The I-PAC PRO 10A achieves exceptional COPs of 7.5-20.1 in Perfect Mode at optimal conditions, averaging 14.8 at 50% speed. Higher COP = lower running costs. This efficiency is why heat pumps cost so much less to operate than electric or gas heaters.

Q12: Why does heating capacity drop in cold weather?

A: This is normal physics for all air-source heat pumps. As ambient temperature drops, there’s less thermal energy available in the air to extract. At 27°C ambient you get 14.5 kW heating, but at 15°C this drops to 9.6 kW, and at 5°C approximately 9.3 kW. The heat pump still works efficiently (COP 5-6 even at 5°C), but produces less total heat. This is why proper sizing for your climate and season is important. The I-PAC PRO 10A continues working effectively down to -20°C, unlike many competitors.

Q13: Should I use Turbo, Perfect, or Silence Mode?

A: Turbo Mode: Use for initial heat-up or when you need maximum heating speed. Highest capacity (14.5 kW) but slightly lower efficiency. Best for weekend heating or rapid recovery after cold periods. Perfect Mode (Recommended): Best for everyday use. Intelligent capacity adjustment (11.6 kW) with excellent efficiency (COP 14.8 average). Balances speed and running costs. Use this 80% of the time. Silence Mode: Ultra-quiet operation (16.4 dB) for nighttime or noise-sensitive periods. Reduced capacity but still very efficient. Perfect for maintaining temperature overnight without disturbing anyone.

Q14: Is the heat pump suitable for saltwater pools?

A: Yes, absolutely. The titanium heat exchanger is specifically designed for saltwater pools and resists corrosion up to 35,000 ppm salt concentration – far higher than typical saltwater pools (3,000-6,000 ppm). The titanium construction provides superior durability compared to stainless steel or cupro-nickel heat exchangers. Just maintain proper water chemistry (pH 7.2-7.8) and the heat pump will provide decades of service. The warranty covers saltwater use when water chemistry is maintained correctly.

Maintenance & Reliability Questions

Q15: How much maintenance does it need?

A: The I-PAC PRO 10A is designed for minimal maintenance. Monthly: clean debris from evaporator fins (5 minutes) and check water chemistry. Quarterly: deep clean cabinet and check for leaks. Annually: professional inspection by F-Gas certified technician (mandatory for warranty). Total owner time: approximately 1-2 hours per year. The self-diagnostic system alerts you to any issues before they become problems. No oil changes, no filters to replace, no complex service requirements.

Q16: What’s the expected lifespan?

A: With proper maintenance and correct water chemistry, expect 15-20+ years of reliable service. The titanium heat exchanger is extremely durable and the inverter technology reduces wear on the compressor compared to on/off heat pumps. The 5-year comprehensive warranty demonstrates manufacturer confidence. Many commercial installations exceed 20 years. Key to longevity: maintain water chemistry, perform annual professional service, winterize properly if seasonal use, keep evaporator clean.

Q17: What happens if it breaks down?

A: The comprehensive 5-year on-site parts and labor warranty covers repairs. The self-diagnostic system identifies faults quickly with clear error codes. Remote monitoring capability (via WiFi) allows Dantherm technicians to diagnose many issues remotely before visiting. The modular design means most repairs are straightforward. For any fault codes or performance issues, contact Dantherm Service UK: +44 (0) 1621 856 611 (option 2). Most problems can be diagnosed over the phone, and technicians arrive with correct parts for faster repair.

Water Chemistry & Pool Care Questions

Q18: Why is water chemistry so important?

A: Incorrect water chemistry is the leading cause of heat exchanger damage and warranty claims. Low pH (acidic) causes corrosion. High pH causes scale buildup that insulates the heat exchanger and reduces efficiency dramatically. Outside the required pH range (7.2-7.8), the warranty is void. Test water chemistry 2-3 times per week and adjust immediately if out of range. Proper chemistry also protects your entire pool system and improves water clarity. It’s the single most important maintenance task.

Q19: Can I use ozone or UV sanitizers?

A: Yes, the I-PAC PRO 10A is compatible with ozone (max 0.9 ppm), UV systems, salt chlorinators (up to 35,000 ppm salt), Baquacil (25-50 ppm), bromine (2-5 ppm), and standard chlorine (1-2 ppm domestic, 3-6 ppm commercial). Ionic purifiers are acceptable up to 2 ppm copper maximum. Just maintain the overall water chemistry parameters regardless of sanitization method. Chemical dosing should always occur after the heat pump in the plumbing circuit.

Q20: Do I need to drain the pool to winterize the heat pump?

A: No, the pool stays full. Winterization only involves draining and flushing the heat pump itself to prevent frost damage to the heat exchanger. You disconnect the plumbing, drain the heat pump completely, flush with clean water, cover the connections, and fit the winter cover. The process takes 30-45 minutes. In spring, you reverse the process – reconnect plumbing, restore water flow, and restart. The pool remains full throughout winter (with winter chemicals and cover).

Smart Features & Control Questions

Q21: What can I do with the WiFi/App?

A: The Pooltherm App (iOS and Android) gives you complete remote control: monitor inlet/outlet temperatures in real-time, adjust set temperature, change heating/cooling/auto modes, switch between Turbo/Perfect/Silence modes, track power consumption, program timer schedules, receive fault notifications, view performance history, update firmware over-the-air, and control multiple heat pumps from one app. Perfect for monitoring your pool temperature while at work or on vacation. The app works from anywhere with internet access.

Q22: Can I control it with Alexa or Google Home?

A: Currently, direct voice assistant integration is not available. However, you have full control via the Pooltherm smartphone app from anywhere. Future firmware updates may add voice assistant compatibility – the over-the-air update capability means new features can be added without hardware changes. For now, the app provides comprehensive remote control that’s even more convenient than voice commands for temperature adjustments and monitoring.

Q23: What are the timer functions for?

A: The timer (available on optional remote control or app) lets you schedule automatic on/off times. Useful for: heating during off-peak electricity hours on tariffs with time-of-use pricing, ensuring the pool is warm for afternoon/evening swimming, preventing operation during the coldest nighttime hours in winter, or coordinating with solar panel generation. You can set one-time or daily-repeating schedules. However, for most efficient operation, leaving the heat pump running 24/7 in Perfect Mode often uses less total energy than intermittent operation.

This comprehensive content provides everything needed for an optimized, professional WordPress product page. Would you like me to adjust any section or add additional information?