Monobloc air source heat pump utilizing R32 refrigerant (GWP 675) and DC inverter technology for hydronic underfloor heating, fan coil cooling, and domestic hot water supply. Designed to comply with European ErP energy efficiency regulations and F-gas phase-down timelines.
The outdoor monobloc architecture integrates the compressor, brazed plate heat exchanger, expansion valve, and water pump within a single enclosure, eliminating on-site refrigerant piping and lowering leakage risks. Operating envelope extends down to -25°C ambient temperature.
Product Range
|
Model |
Nominal Heating (kW) |
Nominal Cooling (kW) |
Power Supply |
Target Application |
ErP Rating (35°C / 55°C) |
|
HP-06-M32 |
6.2 |
5.8 |
220V-240V/1Ph/50Hz |
Small Apartments, Retrofit Houses |
A+++ / A++ |
|
HP-10-M32 |
10.5 |
9.8 |
220V-240V/1Ph/50Hz |
Standard Single-Family Homes |
A+++ / A++ |
|
HP-14-M32 |
14.0 |
13.2 |
380V-415V/3Ph/50Hz |
Large Villas, Multi-room Hydronic |
A+++ / A++ |
|
HP-20-M32 |
20.2 |
19.0 |
380V-415V/3Ph/50Hz |
Light Commercial / Multi-family |
A++ / A++ |
|
HP-30-M32 |
30.0 |
28.5 |
380V-415V/3Ph/50Hz |
Commercial Buildings / Hotels |
A++ / A++ |
Technical Specifications
|
Parameter Category |
Technical Specification Data |
|
Refrigerant |
R32 (GWP 675, Zero ODP) |
|
Compressor Type |
DC Twin-Rotary / EVI Scroll (Inverter Driven) |
|
Operating Ambient Temp |
Heating: -25°C to 43°C |
|
Max Water Outlet Temp |
60°C (Without Electric Heater Backup) |
|
COP Range (EN14511) |
3.20 to 4.85 (A7/W35) |
|
Sound Pressure Level |
42 to 52 dB(A) at 1 meter (Night silent mode active) |
|
Hydraulic Connection |
1-inch to 1-1/4 inch BSP / NPT Male |
|
Communication Protocol |
Modbus RTU / RS485 (BMS & Smart Grid Integration) |
|
Certifications |
CE-LVD, CE-EMC, RoHS, ErP Keymark, MCS (Pending) |
Key Features
EVI Vapor Injection: Maintains 80% heating capacity at -15°C ambient and delivers 60°C water output without electric heater backup.
Full DC Inverter Modulation: Stepless compressor and fan speed matching thermal load fluctuations to eliminate temperature swings.
Low Noise Architecture: Multi-layer acoustic foam compressor insulation and swept-wing DC fan blades complying with VDI 2058 noise limits.
Smart Grid & PV Ready: Built-in SG Ready contacts and photovoltaic matching logic for surplus solar thermal storage.
Anti-Freeze Protection: Automated pump cycling, thermistor monitoring, and plate heat exchanger self-drainage algorithms.
Technology & Working Principle
Operating on the reversed Carnot cycle:
Evaporation: Fin-and-tube evaporator absorbs low-grade ambient heat into liquid R32.
Compression: DC inverter compressor pressurizes vapor. EVI injects intermediate-pressure vapor into the chamber, sustaining mass flow at sub-zero temperatures.
Condensation: Brazed plate heat exchanger transfers thermal energy from high-pressure R32 gas to the water loop.
Expansion: Electronic expansion valve (EEV) meters refrigerant back to low pressure.
Applications
Residential Retrofits: Direct boiler replacement for low-temperature underfloor heating or high-efficiency radiators.
Multi-Zone Living: Centralized or cascading setups supplying independent thermal zones.
Light Commercial: Offices, retail spaces, and boutique hotels requiring seasonal space heating and fan-coil cooling.
System Solutions
System Architecture:
R32 Monobloc Heat Pump -> Buffer Tank / Hydraulic Separator -> Underfloor Heating Loops / Fan Coil Units / Domestic Hot Water Tank
Buffer Tank: Required for multi-zone setups to maintain minimum water volume and prevent compressor short-cycling.
DHW Priority: Automated 3-way valve control routing thermal output to domestic hot water cylinder coils.
OEM & ODM Customization
Enclosure & Branding: RAL powder coating colors, laser-engraved or silk-screened client logos, and custom casing geometry.
Software & UI: Multilingual display interfaces (English, German, French, etc.), boot logos, and custom Modbus register mapping.
Component Options: Alternate electrical specs (e.g., 208V/60Hz) and hydraulic component selections (Wilo/Grundfos, SWEP/Alfa Laval).
Quality Control & Testing Standards
Manufactured under ISO 9001 and ISO 14001 systems. Mandatory testing per unit:
Helium Leak Detection: Mass spectrometer testing of pressurized circuits (< 2 x 10^-7 Pa*m3/s).
Electrical Safety: Dielectric withstand voltage (1800V, 1s) and earth continuity testing.
Automated Run-Test: 100% factory run-test under simulated water and ambient conditions verifying pressure, superheat, and COP metrics.
FAQ
Request a Quote
For data sheets, STEP 3D CAD models, or volume pricing, contact our engineering sales team.
Required Project Data: Target country, annual volume estimate, power supply (230V/400V), and accessory requirements.
Email: leo_heatpump@163.com
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