HPGM-4BP

Year-Round Comfort

This monobloc system is engineered to deliver stable heating in outdoor temperatures down to -25°C, and highly effective cooling in summer up to +43°C (by supplying chilled water to fan coils or underfloor/wall cooling loops). Driven by an advanced DC inverter controller, the system maintains the target water temperature within a precise 0.5°C range, eliminating temperature fluctuations and ensuring consistent, draught-free indoor comfort.

Technical Advantages & Features

• Top-Tier Seasonal Efficiency (A+++ Class): Utilizing full DC inverter technology on the compressor, fan, and water pump, the system extracts up to 75% of its thermal energy from the ambient air, drastically reducing winter heating bills compared to standard electric boilers.

• All-in-One Concept: The outdoor unit houses all essential hydraulic components, including a high-efficiency plate heat exchanger, a DC water pump, an expansion vessel, a flow switch, and safety valves. It outputs a ready-to-use water heating circuit directly.

• Premium DC Inverter Compressor: Features a highly reliable inverter compressor with advanced acoustic and thermal insulation, keeping vibration and outdoor operating noise to an absolute minimum.

• Eco-Friendly R32 Refrigerant: Optimized to run on low-GWP R32 refrigerant, which increases thermodynamic heat transfer efficiency by 10% and requires a smaller refrigerant charge volume.

• Wired Controller Included: Comes with an intuitive wired touchscreen controller to program customized weather-dependent heating curves, vacation modes, weekly schedules, and domestic hot water (DHW) priorities.

Installation & Operation Insights

• From our engineering teams' experience: Since the monobloc is filled with water and sits entirely outdoors, we pay meticulous attention to frost protection in regions with potential winter power outages. We strongly recommend filling the heating system with a certified propylene glycol-based thermal fluid or installing specialized mechanical freeze-protection valves (such as Ice-Stop valves).

• Installation is exceptionally clean and rapid: because the refrigerant loop is hermetically sealed at the factory, there is zero need for copper line brazing or flaring on site. The installer only needs to connect insulated water pipes from the monobloc directly to the building's heating manifold.

Comparison with the Split HPGS-V5HW / HPGS-V8HN Model (5.0 kW)

While both units are designed for compact living spaces, the monobloc HPGM-4BP offers distinct structural and installation differences compared to the split HPGS-V5HW / HPGS-V8HN:

• Zero Indoor Footprint: The monobloc requires no wall space inside the home for a hydro-module. The entire heating engine is kept outside, preserving valuable indoor living space.

• Simplified Installation: The factory-sealed refrigerant circuit eliminates the need for professional refrigeration tools. The installation process is straightforward and carries a lower risk of installer-induced gas leaks.

• Frost Vulnerability: Unlike the split system, where the water heat exchanger is safely protected inside the warm house, the outdoor monobloc requires proper winter safety precautions (glycol or anti-freeze valves) to prevent freezing during prolonged blackouts.

• Tailored Capacity: At 4.0 kW, this model is perfectly scaled for ultra-compact, low-energy spaces under 60 m², preventing compressor short-cycling and optimizing seasonal COP.

Best Suited For:

• Owners of small townhouses, smart homes, and apartments (40–60 m²) who want to transition to green energy without sacrificing indoor utility space.

• Projects looking for a fast, straightforward installation that minimizes on-site labor and eliminates the need for complex refrigerant piping.

Might Not Be Suited For:

• If you live in an area prone to long, unmanaged winter blackouts and do not wish to use glycol in your heating system, a split-type system like the HPGS-V5HW / HPGS-V8HN remains a safer choice because its water-bearing parts are protected indoors.