SPLIT R32 DC INVERTER · Air-to-Water Heat Pump
HPGS-V8HW/HPGS-V8HN
The HPGS-V8HW / HPGS-V8HN is an advanced, high-efficiency split-type air-to-water heat pump with a nominal capacity of 8.0 kW. The system consists of an outdoor unit (HPGS-V8HN) and an indoor hydro-module (HPGS-V8HW). We strongly recommend this model for energy-efficient homes and modern cottages ranging from 70 to 90 m². It is the ideal primary heating, cooling, and domestic hot water (DHW) solution for newly built properties with floor heating systems, or as a modernization upgrade integrated into existing low-temperature radiator circuits.
MODELS
Year-Round Comfort
This air-to-water split system is engineered to perform as your primary source of thermal comfort even in harsh winters, certified for stable heating at outdoor temperatures down to -25°C...-28°C, and reliable cooling up to +43°C. During the summer months, the system reverses its cycle to supply chilled water to fan coils or underfloor cooling systems. With a high-precision inverter control system, the heat pump maintains the target water temperature within 0.5°C, preventing draft sensations and ensuring exceptional microclimatic stability.
Technical Advantages & Features
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Maximum Seasonal Efficiency (A+++ Class): Utilizing full DC inverter technology, the system delivers outstanding COP values. It extracts up to 75% of its required thermal energy directly from the ambient air, significantly lowering your seasonal heating bills.
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Intelligent Split Design: Because the water circuit (hydro-module) is located entirely within the indoor unit (HPGS-V8HW), there is zero risk of water lines freezing or bursting during emergency winter power outages.
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Premium DC Inverter Compressor: Powered by a highly efficient, dual-stage inverter compressor with enhanced insulation, ensuring whisper-quiet operation and an extended operational lifespan.
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Eco-Friendly R32 Refrigerant: Optimized for next-generation R32 refrigerant, which maximizes system efficiency, operates at lower charge volumes, and has a significantly reduced global warming potential.
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Intuitive Control Touchscreen: Equipped with a modern, wired color touch-controller that makes configuring complex heating curves, DHW priority, and disinfection cycles straightforward.
Installation & Operation Insights
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From our engineering teams' experience: For split air-to-water heat pumps like the HPGS-V8HW / HPGS-V8HN, seamless integration depends on correct system design. Our teams pay special attention to calculating the required buffer tank capacity (typically 30 to 50 liters) to avoid compressor short-cycling and ensure smooth defrost cycles.
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We mount the outdoor unit on reinforced floor-standing frames with industrial-grade rubber vibration absorbers. Because the connection between the outdoor unit and the indoor hydro-module relies solely on copper refrigerant lines (1/4" liquid and 1/2" gas), the installation is robust, straightforward, and completely freeze-proof.
Comparison with Other SENSEI Solutions
While the monobloc series (HPGM) houses all hydraulic components in a single outdoor unit, the split HPGS-V8HW / HPGS-V8HN offers total peace of mind in regions with frequent winter power outages, as no water pipes run outside.
Compared to smaller 5 kW heat pumps, this 8 kW model provides the essential thermal reserve required for domestic hot water production alongside active space heating without relying heavily on backup electrical heaters.
Best Suited For:
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Owners of modern energy-efficient homes (70–90 m²) who want to cut utility costs by replacing gas or solid fuel boilers with a single clean energy solution.
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Regions with severe winter frosts, where standard monobloc systems face freezing risks during grid power interruptions.
Might Not Be Suited For:
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If your home's thermal load is calculated for high-temperature radiators (requiring water temperatures of 70°C or above) without adequate insulation, a standard air-to-water heat pump may lose efficiency; in such cases, thermal insulation upgrades are highly recommended first.
PACKAGE CONTENTS
- Indoor unit
- Outdoor unit
- Remote control
- Installation manual
- Warranty card
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High pressure-ratio compressor
High pressure-ratio compressor — up to 13 — with better performance at low ambient temperatures. Renowned GMCC brand. DC rotary inverter compressor. Refrigerant: R32.
DC fan motor
Brushless DC fan motor. Higher efficiency, low noise level
Larger heat exchanger
A larger heat exchanger to match the required heat-exchange area at low ambient temperatures. Flat-type fins improve defrosting efficiency.
Integrated PCB
The integrated PCB for the single-phase unit reduces the risk of damage to each component.
Plate heat exchanger
Efficient heat transfer for both heating and cooling. Compact footprint. Withstands high temperatures and high pressure.
Inverter water pump
High-efficiency inverter water pump. Brand: Wilo Para series. Water head is 9 m for the 8 kW, 12 kW, and 16 kW hydronic modules. CE and VDE compliant, 50/60 Hz.
Expansion tank
When water heats up, it expands and its pressure rises. Without room for thermal expansion, serious problems can occur in the water system, including failure or rupture. The expansion tank maintains stable pressure in the water system. Pre-charge pressure: 0.15 MPa. Volume: 2 L.
KEY SPECIFICATIONS
- Compressor Type
- Rotary DC inverter
- Power Supply
- 220~240/1/50 V/Ph/Hz
- Capacity (kW)
- 8
- Poles
- 6
- Speed (rps)
- 12~120
- Oil
- POE/670mL
- Motor Type
- Brushless DC motor
- Number of Fans
- 1
- Heat Exchanger Rows
- 3
- Compressor model
- EKTF235D22UMT
- Charge Volume (kg)
- 1,4
- Tube Pitch × Row Pitch (mm)
- 21x13,3
- Heat Exchanger Tube Type and Diameter
- Ф7 grooved copper pipe
- Fin Spacing (mm)
- 1,4
- Heat Exchanger Fin Type
- Hydrophilic aluminum
- Heat Exchanger Dimensions
- 784x651x40,11
- Number of Turns
- 7
- Pipe Diameter (OD, mm)
- Ф9.52
- Expansion Device
- EXV
- Compressor Manufacturer
- GMCC
- Safety Valve (kPa)
- 600
- Expansion Tank (volume, L)
- 2
- Pump Head (m)
- 9
- Number of Phases
- 1
- Max. water pressure (kPa)
- 800 kPa
- Nominal pressure (kPa)
- 150 kPa
- Rated power consumption (kW)
- 3kW
- Rated current (A)
- 13,6A
- refrigerant_topup
- (Total pipeline length is -5)m*30 g/m
PERFORMANCE
- Air Flow (m³/h)
- 3200 m3/godz
- EER Energy Efficiency
- 2,8 kW/kW
- COP Energy Efficiency
- 3,2
- Maximum Current Draw (A)
- 19
- Energy Efficiency Class (water 35°C)
- A+++
- Energy Efficiency Class (water 55°C)
- A++
- Max. Power Consumption (kW)
- 4,2
- Max. power consumption, indoor (kW)
- 3,6 kW
- Max. current, indoor (A)
- 17 A
- SCOP Energy Efficiency
- 4,1 kW/kW
- Power Consumption (kW)
- 1,95
- Hot Water Temperature
- 40~60°C
- Hot water supply, indoor (°C)
- 40~60°C
SOUND AND CONVENIENCE
- Indoor Unit Noise Level (dB)
- 45
- Outdoor Unit Noise Level (dB)
- 66
INSTALLATION AND PIPING
- Maximum Line Length (m)
- 20 m
- Operating Temperatures (Heating)
- -28~43°C
- Operating Temperatures (Cooling)
- -5~46°C
- Liquid Pipe Diameter (mm)
- Ф9.52
- Gas Pipe Diameter (mm)
- Ф15.88
- Height Difference (above, m)
- 10
- Height Difference (below, m)
- 10
- Connecting Pipe Diameter (outlet)
- DN32
- Connecting Pipe Diameter (inlet)
- DN32
- Cooling water temp, indoor (°C)
- 5~25 °C
- Cooling water temp, outdoor (°C)
- 5~25°C
- Heating water temp, outdoor (°C)
- 25~60°C
- Heating water temp, indoor (°C)
- 25~60°C
INDOOR UNIT DIMENSIONS AND WEIGHT
- Indoor Unit Weight (kg)
- 47/55 kg
- Packing W×H×D, indoor (mm)
- 620*1105*425 mm
- Indoor Unit Dimensions (W×D×H)
- 490*910*340 mm
OUTDOOR UNIT DIMENSIONS AND WEIGHT
- Outdoor Unit Weight (kg)
- 55/58 kg
- Packaged Dimensions (W×H×D, mm)
- 975x770x435 mm
- Outdoor Unit Dimensions (W×D×H)
- 935x702x382 mm
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