R32 Air-to-Water DC Inverter Heat Pump for Heating Cooling Hot Water
OEM R32 DC inverter air-to-water heat pump system with A+++ efficiency for commercial heating, cooling and DHW.
1.Multi functions of heating, cooling and hot water
2.Full DC inverter compressor and fan motor
3.Twin-rotary technology to ensure a stable performance at -25ยฐC
4.Wired controller with Wifi smart control
5.Eco friendly, R32 refrigerant, less GWP than R410A
6.Water pump included, convenient for installation
DC inverter technology delivers COP up to 5.2, cutting electricity costs by 30% compared to fixed-speed units.
Low-GWP (675) refrigerant with 30% less charge volume, fully compliant with EU F-Gas regulations.
EVI technology ensures reliable heating down to -25ยฐC, maintaining capacity at -15ยฐC ambient.
Single unit provides space heating, cooling, and domestic hot water (DHW) for year-round comfort.
Twin rotary DC inverter compressor modulates 20Hz-120Hz to match exact heat demand without energy waste.
Factory-direct bulk supply with private labeling, voltage customization, and global certification.
15-20 year service life with minimal upkeep, zero direct carbon emissions, and solar-ready integration.
Certified A+++ Efficiency โ Lower Running Costs, Higher Profit Margins
Achieving theย A+++ seasonal coefficient of performance (SCOP)ย under real-world climate conditions means your end-users save up to 40% on annual heating bills compared to electric resistance or oil-fired systems. The secret?ย Full DC inverter technologyย that modulates compressor and fan speeds from 30% to 110%, eliminating energy-wasting on/off cyclesโespecially critical for underfloor heating and fan coil units that require stable low-temperature water (35ยฐC).
R32 Refrigerant โ Future-Proof, Eco-Friendly, and More Powerful
Why R32 instead of R410A?
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Lower GWP (675 vs. 2088)ย โ compliant with upcoming F-gas phase-down regulations.
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Higher volumetric heating capacityย โ delivers up toย 65ยฐC leaving water temperatureย even in severe winters, making it a directย replacement for gas boiler heat pumpย retrofits using existing radiators.
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Reduced charge volumeย โ less refrigerant means lower cost and easier logistics for overseas shipping.
Full DC Inverter with Intelligent PID Control โ ยฑ0.5ยฐC Water Precision
Ourย DC inverter heat pump for heating and coolingย uses independent IPM drivers for the compressor, outdoor fan, and optional circulation pump. The smart algorithm:
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Maintains outlet water temperature within ยฑ0.5ยฐC โ no more scalding or chilly shocks.
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Automatically hunts the compressorโs highest efficiency island during partial-load operation (which accounts for >80% of runtime).
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Shortens defrost cycles by 30% via intelligent frost detection, ensuring stable indoor comfort during freezing rain or heavy snow.
-25ยฐC Extreme Cold Operation โ Built for Nordic & Continental Climates
Equipped withย vapor-injection (EVI) scroll compressorย (optional on select models), thisย cold climate air source heat pumpย maintainsย 60ยฐC outlet waterย even at -25ยฐC ambient. The oversized finned-tube heat exchanger and advanced liquid-injection technology protect against high discharge temperatures, guaranteeing reliable heating performance where conventional heat pumps fail.
Whisper-Quiet & Modular Scalability โ From Villas to Office Buildings
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Silent night modeย reduces sound pressure to as low asย 42 dB(A)ย โ ideal for noise-sensitive residential neighborhoods.
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Up to 16 units in parallelย via built-in Modbus/KNX protocols, covering from 100 mยฒ apartments to 5,000+ mยฒ mixed-use projects. This modular design makes it a trueย all-in-one HVAC heat pump systemย for hotels, clinics, gyms, and office complexes.
FAQs
Thisย R32 air-to-water DC inverter heat pumpย is not limited to new-build villas. Its true versatility lies in three core application scenarios:
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Residential (New & Retrofit)ย โ Perfect forย underfloor heating systemsย in winter,ย fan coil coolingย in summer, and 24/7ย domestic hot water (DHW)ย supply. For retrofit projects, its 65ยฐC maximum leaving water temperature allows direct connection to existing cast-iron radiators, making it a seamlessย drop-in replacement for gas or oil boilersย without costly pipe re-engineering.
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Light Commercial & Hospitalityย โ Ideal for hotels, clinics, gyms, nurseries, and small office buildings. Withย modular parallel connection (up to 16 units), the system scales from 50kW to 800kW total capacity, simultaneously serving chilled water for air handling units (AHUs) and high-temperature hot water for laundry or swimming pools.
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Passive House & Low-Energy Buildingsย โ Its ultra-highย A+++ seasonal efficiencyย and low auxiliary heater consumption meet the strict demands of passive house standards, where precise part-load operation is critical.
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Industrial Process Heatingย โ Pre-heating fresh air or maintaining tank temperatures in food processing and agricultural drying (e.g., tobacco or timber pre-drying), thanks to consistent 35ยฐC~65ยฐC hot water output.
Our unit stands out onย three distinct technological levels:
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Refrigerant Advantage (R32 over R410A)ย โ R32 has aย GWP of 675 vs. R410A’s 2088, complying with the EU F-gas phase-down schedule years ahead of competitors. Thermally, R32 offersย 5~8% higher volumetric heating capacity, meaning more heat output per kW input. Additionally, the required charge volume is 20~30% lower, reducing both cost and shipping restrictions for global logistics.
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Full DC Inverter vs. Pseudo-DC or AC Inverterย โ Many competitors claim “inverter” but useย AC fan motors or single-stage variable compressors. Our system employsย full DC synchronous motorsย for the compressor, outdoor fan, and optional pumpโeach driven by independent IPM intelligent modules. This allowsย stepless modulation from 30% to 110% capacity, whereas AC-inverter units typically only offer 3~5 fixed speed steps, resulting in frequent starts and higher energy waste.
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EVI Extreme-Cold Technologyย โ Optionalย vapor-injection enthalpy (EVI)ย on select models is a game-changer. While standard R410A heat pumps lose 30~40% capacity at -15ยฐC, our EVI-equipped unit maintainsย over 85% rated heating capacity at -25ยฐCย and still delivers 60ยฐC outlet water. This is the critical difference for distributors serving Nordic, Canadian, or Siberian markets.
We understand your concernโlab numbers don’t pay bills. That’s why ourย A+++ SCOP (Seasonal Coefficient of Performance)ย is certified under theย EN 14825 standard, which simulates real European climate profiles (Athens, Strasbourg, and Helsinki). Here are verified field data from our 3-year monitoring program in Norway (Oslo) and Scotland:
| Ambient Temp. | Leaving Water Temp. | Actual COP (Field Test) | Lab-rated COP (Deviation) |
|---|---|---|---|
| +7ยฐC (partial load) | 35ยฐC (floor heating) | 5.2 | 5.1 (+2%) |
| -7ยฐC (nominal) | 45ยฐC (radiator) | 3.6 | 3.8 (-5%) |
| -15ยฐC (low-temp) | 55ยฐC (high-temp) | 2.9 | 3.0 (-3%) |
| -25ยฐC (extreme) | 60ยฐC (DHW) | 2.2 | N/A (most brands can’t operate) |
Why the minimal gap between lab and field? Because ourย DC inverter algorithmย actively adjusts the superheat and subcooling values every 10 seconds based on actual outdoor humidity and water return temperatureโnot fixed preset maps. Thisย adaptive real-time optimizationย keeps the compressor operating within its highest-efficiency island, even during frequent defrost cycles.
Yesโand this is one of our most requested features.ย Many B2B buyers hesitate to retrofit because they assume old radiator systems require high-temperature water (70ยฐC~80ยฐC), which most standard heat pumps cannot deliver efficiently.
Our unit breaks that barrier:
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65ยฐC Maximum Leaving Water Temperatureย โ This is the “magic number” for retrofit projects. Most European and UK homes built before 2000 have panel radiators or cast-iron column radiators designed for 70/50ยฐC flow/return. Our heat pump, when set to 65ยฐC flow, maintains room comfort even in drafty older buildings,ย without replacing piping or radiators.
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Smart Weather-Compensated Curveย โ Instead of fixed 65ยฐC all winter, our controller automatically lowers the flow temperature to 45ยฐC during mild days (10ยฐC outdoor) and only ramps up to 65ยฐC during sub-zero spells. Thisย self-adjusting strategyย boosts seasonal efficiency by 15~20% compared to constant high-temp operation.
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Minimal Hydraulic Modificationย โ The unit comes withย built-in circulation pump, expansion vessel, and 3-way diverter valveย (for DHW priority). Installation simply requires connecting the existing boiler flow/return pipes to our hydraulic moduleโno re-piping of the whole building.
For B2B decision-makers,ย TCO (Total Cost of Ownership)ย matters more than upfront price. We provide a transparent 5-year TCO comparison model based on real EU energy prices (gas โฌ0.12/kWh, electricity โฌ0.28/kWh, oil โฌ1.10/L):
| Cost Component | Gas Boiler (95% eff.) | Oil Boiler (88% eff.) | Our R32 Heat Pump (SCOP 3.8) |
|---|---|---|---|
| Annual Fuel/Electricity Costย (20,000 kWh heat load) | โฌ2,526 | โฌ2,750 | โฌ1,474 |
| Annual Maintenance Costย (parts + labor) | โฌ350 | โฌ450 | โฌ180ย (sealed system, fewer moving parts) |
| 5-Year Total Operating Cost | โฌ14,380 | โฌ16,000 | โฌ8,270 |
| Equipment + Installation Cost | โฌ6,000 (new boiler) | โฌ7,500 | โฌ9,800 (with DHW tank) |
| 5-Year TCO | โฌ20,380 | โฌ23,500 | โฌ18,070 |
Payback Period:ย The additional investment of โฌ3,800 over a new gas boiler is recovered inย ~2.2 yearsย via annual savings of โฌ1,052 on fuel. Over a 15-year lifespan, net savings exceed โฌ15,000 per unitโand this excludes rising carbon taxes or green subsidies (e.g., UK BUS scheme, French MaPrimeRรฉnov’).
We recognize that for overseas B2B partners,ย product reliability is a givenโbut after-sales responsiveness is the real differentiator.ย Our support package is structured around three pillars:
1. Technical Documentation Package (All Delivered Digitally)
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Fullย installation manualย with 3D exploded-view diagrams.
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Wiring schematicsย for all control board connections (standard and custom).
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EN 14511 / AHRI performance test reportsย โ certified by third-party labs (e.g., TรV, Eurovent).
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Modbus register mapย โ enabling BMS integration without black-box reverse engineering.
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Troubleshooting flowchartsย โ reducing unnecessary technician callouts.
2. Spare Parts & Logistics
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European parts hubย (Netherlands/Germany) stocking critical spares: main PCBs, EVI expansion valves, fan motors, and water pressure sensors โย delivery within 48~72 hours across EU.
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Seaworthy spare parts kitsย pre-packaged with every bulk order (e.g., 5% extra sensors and thermistors) to minimize downtime during the first 2 years of operation.
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Cross-reference listย for generic components (capacitors, contactors) โ so local electricians can source emergency replacements locally.
3. Remote Diagnostics & Training
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Built-in 4G/Wi-Fi communication moduleย (optional) that sends real-time error codes to our cloud platform. Our engineers can diagnose 80% of faults remotely within 2 hours and guide your on-site team step-by-step.
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Free online training sessionsย (Webex/Teams) โ covering installation best practices, parameter tuning, and winterization procedures for freezing climates.
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Bulk-tier warranty:ย 2-year standard, extendable to 5 years for container-order clients who complete our certification training.
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