Electric pool heater CALOREX I-PAC 8-12-16-22

for public poolfor in-ground swimming pools

Overview
Inverter technology provides precise, energy‑efficient control of pool water temperature. The Calorex I‑PAC range uses a stepless modulating inverter compressor to deliver high average COP across operating conditions. Models cover small domestic and commercial pools and include integrated touchscreen control, Wi‑Fi and app connectivity.

Key features

• Approximately 2× more efficient than equivalent on/off heat pumps
• Eco‑friendly refrigerant R32 (GWP 675), zero ODP
• Inverter heat pump with step‑less modulating compressor
• Power ratings from ~9.5 kW to ~25 kW across the range
• Whisper Mode: 9–11 dB(A) lower perceived noise versus on/off units
• Operates in ambient temperatures from -5°C to +43°C
• Integrated touchscreen controller (heating/cooling/heat‑cool modes)
• Soft start to reduce electrical inrush
• Aluminium alloy chassis and titanium condenser suitable for pool water
• Built‑in Wi‑Fi module and PoolTherm app (Android & iOS)
• Winter protection cover included

New refrigerant gas

• Uses R32 refrigerant with low global warming potential (GWP = 675)
• Zero ozone depletion potential (ODP)
• F‑gas phase‑down compliant
• Requires less refrigerant per kW and simplifies reuse/recycling

Product specifications (summary)

• Air temperature range: -5°C to 43°C (all models)
• Water temperature range: 12°C to 40°C
• Heating capacity (air 27°C / 80% RH, water 27°C): I‑PAC 8ALX = 9.5 kW; I‑PAC 12ALX = 13.0 kW; I‑PAC 16ALX = 20.0 kW; I‑PAC 22ALX = see full datasheet
• COP range (air 27°C): I‑PAC 8ALX = 13.2–5.4; I‑PAC 12ALX = 13.5–5.6; I‑PAC 16ALX = 13.5–5.7; I‑PAC 22ALX = see full datasheet
• Average COP at 50% speed: 8.9 (8ALX) / 9.7 (12ALX) / 9.3 (16ALX)
• Performance examples at other conditions: heating at air 15°C / 70% RH (water 26°C) — 7.0 / 9.5 / 13.5 kW (8/12/16); air 5°C / 70% RH (water 10°C) — 4.5 / 5.6 / 7.9 kW
• Cooling capacity (air 35°C / 80% RH, water 28°C): 3.9 / 5.2 / 7.4 kW (8/12/16)
• Power supply: 230 V / 1ph / 50 Hz (small models)
• Rated input power: ranges by model (e.g. 0.3–1.79 kW for I‑PAC 8ALX)
• Maximum input current: e.g. 9.5 A (8ALX), 12.5 A (12ALX), 19.5 A (16ALX)
• Water flow: 3.0–5.0 m³/h (8ALX); 4.0–6.0 m³/h (12ALX); 7.0–10.0 m³/h (16ALX)
• Water connection: 1½" / 50 mm
• Compressor: inverter (step‑less modulation)
• Condenser: titanium
• R32 gas weight / CO2 equivalent: e.g. 0.6 kg / 0.41 t (8ALX); 0.9 kg / 0.61 t (12ALX); 1.1 kg / 0.74 t (16ALX)
• Sound level @ 10 m: ranges by model (e.g. 19.6–31.5 dB(A) for 8ALX)
• Product size (W × D × H): 864 × 359 × 648 mm (8ALX/12ALX); 954 × 359 × 748 mm (16ALX)
• Weight: 47 kg (8ALX), 49 kg (12ALX), 68 kg (16ALX)
• Included: rubber feet, drainage pipe, water union; winter protection cover included

Notes

• The I‑PAC range includes multiple model sizes (8ALX, 12ALX, 16ALX, 22ALX) with different capacities and dimensions; consult the full datasheet for the 22ALX and full performance tables.
• Integrated touchscreen controller with Wi‑Fi and PoolTherm app control for remote monitoring and settings.

Technical characteristics

• Refrigerant: R32 (low GWP, zero ODP)
• Compressor: inverter with stepless modulation
• Condenser material: titanium (suitable for pool water)
• Operating ambient air range: -5°C to +43°C
• Water temperature operating range: 12°C to 40°C
• Typical heating capacities: ~9.5 kW to ~20 kW depending on model and conditions
• High average COP values at mid operating points
• Whisper Mode and sound reduction features
• Electrical supply: standard single‑phase 230 V / 50 Hz for small models
• Connectivity: built‑in Wi‑Fi and PoolTherm mobile app
• Included accessories: rubber feet, drainage pipe, water union, winter protection cover
• Corrosion‑resistant construction for pool environments