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TONGYI Full DC Inverter Commercial Heat Pump – Direct Heat System For Instant 70°C Hot Water

2026-08-04

Table of Contents

Product Overview
Core Unique Advantages of Direct Heating Technology
9 Key Product Performance & Smart Features
Ideal Application Scenarios
Frequently Asked Questions
Final Summary & Cooperation Guide

TONGYI Full DC Inverter Commercial Heat Pump – Direct Heat System For Instant 70°C Hot Water

Product Overview

EU hospitality, education and resort facilities face two core pain points in hot water systems: high operating costs from gas boilers or electric heaters, and extra investment for electric boosters & bulky hot water tanks to reach high supply temperatures. The TONGYI Full DC Inverter Direct Heating Commercial Heat Pump is engineered to solve both challenges, delivering instant stable 70°C domestic hot water in a single heating pass without auxiliary heating devices.

Backed by over 20 years of large landmark project operation records, this all-in-one commercial heat pump matches EU ESG decarbonization requirements. It cuts energy bills by 50%–70% versus fossil fuel and resistance heating, supports seamless building management system connection, and runs reliably across extreme global climates from -25°C to 43°C. Ideal for hotels, university campuses, tourist resorts, stadiums and other high-demand commercial venues.

TONGYI Full DC Inverter Commercial Heat Pump – Direct Heat System For Instant 70°C Hot Water 1

Core Unique Advantages of Direct Heating Technology

Instant 70°C Hot Water, No Electric Booster Required

Traditional commercial heat pumps cannot hit 70°C outlet temperature alone, forcing operators to install costly electric booster heaters that waste extra power. TONGYI’s exclusive direct-heating heat exchange structure raises cold incoming water straight to 70°C in one circulation loop, eliminating auxiliary heating hardware and redundant energy loss. The unit’s premium thermal insulation minimizes standby heat loss for consistent temperature output during peak hot water demand.

Dramatically Reduced Tank Footprint

On-demand direct heating greatly shrinks or completely removes the need for massive hot water storage tanks. Mechanical plant rooms save valuable usable floor space, reduce installation pipeline layout difficulty, and cut constant heat loss from large volume water storage tanks year-round.

50–70% Operational Energy Savings

Compared with electric resistance water heaters, gas boilers and oil-fired hot water systems, the full DC inverter direct heating design slashes power and fuel consumption by half or more. It lowers Scope 2 carbon emissions, helping commercial properties meet EU carbon reporting and sustainability certification standards.

9 Key Product Performance & Smart Features

1. Full DC Inverter for Industry-Leading Annual COP

Adopts complete full DC inverter variable-speed control for compressors and fans. The unit automatically adjusts heating output according to real-time hot water load, achieving an annual COP over 4.86. Smooth power cycling avoids frequent startup/shutdown abrasion to extend unit service life. It supports ±20% wide voltage operation for unstable grid areas and optional PV direct-drive connection to run on solar power and further cut grid electricity costs.

2. Proven Reliability From Global Flagship Large-Scale Projects

Validated in world-class landmark venues including Beijing National Stadium (Bird’s Nest), Beijing Daxing International Airport and Hangzhou Asian Games competition venues. Long-term stable hot water supply for global luxury hotel chains: Marriott, Sheraton and Ritz-Carlton. Main cabinet and internal heat exchangers adopt thickened high-grade stainless steel with strong anti-rust performance for extended service cycles.

3. Low-GWP R32 Refrigerant Aligned With EU F-Gas Rules

Equipped with R32 refrigerant with moderate low global warming potential, fully compliant with EU F-Gas phasedown regulations. It reduces the building’s overall carbon footprint and helps enterprises obtain ESG scoring advantages for green procurement and sustainable brand credentials.

4. Native BMS Integration via BACnet & Modbus-TCP

Built-in industrial communication modules supporting standard BACnet IP and Modbus-TCP protocols. No extra gateway hardware is needed for connection with building management systems. Facility managers realize centralized unified monitoring, automatic load scheduling and whole-site energy consumption statistics on one control platform.

5. Ultra-Wide Operating Climate Range (-25°C ~ 43°C)

Specially optimized refrigeration cycle and defrost logic enables stable 70°C hot water output in frigid -25°C cold winter zones and high-temperature 43°C tropical coastal regions. Suitable for commercial projects across all European climate zones, Nordic cold areas and Mediterranean seaside resorts alike.

6. Custom Coastal Anti-Corrosion Treatment Option

For seaside hotels, coastal resorts and high-salinity atmospheric environments, customized anti-corrosion coating and reinforced stainless steel accessories are available. The upgraded anti-salt-fog structure prevents metal corrosion and maintains long-term stable operation in humid coastal conditions.

7. IoT Intelligent Remote O&M System

Standard embedded IoT connectivity enables cloud remote monitoring, real-time fault alert and predictive maintenance. Service teams remotely check running parameters, diagnose abnormal states and dispatch maintenance schedules in advance, lowering on-site inspection labor costs and reducing unexpected downtime for commercial hot water supply.

8. Premium Stainless Steel Construction & Long Service Life

Main frame, water side heat exchanger and water pipeline fittings use corrosion-resistant high-quality stainless steel materials. Strong oxidation resistance avoids scaling and rust blocking heat exchange efficiency, cutting component replacement frequency and whole-lifecycle maintenance expenses.

9. Smooth Variable Load Operation & Stable Grid Adaptation

Full DC inverter soft start eliminates instantaneous grid current surge. Intelligent load matching avoids frequent on-off cycling that accelerates component aging. The unit maintains steady heating capacity under fluctuating grid voltage, critical for remote towns and mountain resort commercial projects with unstable power supply.

Ideal Application Scenarios

International chain hotels, boutique resorts, coastal vacation hotels and spa centers
Universities, boarding schools, sports stadiums and large event venues
Commercial gyms, swimming pools, large catering complexes and public bath centers
Municipal public buildings, office parks and industrial staff dormitories
ESG-focused commercial properties pursuing low-carbon hot water transformation
European renovation projects replacing outdated gas/oil boilers with high-temperature DHW demand

Frequently Asked Questions

Q1: Does this commercial heat pump comply with EU F-Gas regulations?

A1: Yes. It uses R32 refrigerant with low GWP value, fully matching EU fluorinated gas phase-down policies, and meets green building certification requirements across EU member states.

Q2: Can the unit output 70°C hot water without electric boosters?

A2: Absolutely. The proprietary direct heating heat exchange system heats cold water to a stable 70°C in a single pass, removing the need for auxiliary electric heating equipment and related extra power consumption.

Q3: Is it applicable for seaside salt fog environments?

A3: Yes. A dedicated coastal anti-corrosion treatment version is optional, with reinforced anti-salt-fog coating and stainless steel fittings to extend service life in high-salinity coastal areas.

Q4: How much energy can commercial facilities save after switching to this heat pump?

A4: Compared with electric heaters and gas boilers, operating energy consumption drops by 50% to 70%, significantly cutting monthly utility bills and carbon emissions.

Q5: Can it connect to building BMS systems for centralized control?

A5: Native BACnet and Modbus-TCP protocol support allows direct docking with mainstream European building management systems without additional gateways.

Final Summary & Cooperation Guide

The TONGYI Full DC Inverter Direct Heating Commercial Heat Pump redefines commercial high-temperature hot water systems for Europe’s energy transition. It combines booster-free instant 70°C DHW, tank-saving direct heating structure, over 4.86 annual COP full DC inverter efficiency, EU F-Gas compliant R32 refrigerant, native BMS communication, -25°C to 43°C full-climate operation, optional coastal anti-corrosion design and IoT remote intelligent O&M into one integrated unit.

For hotel operators, campus facility managers and commercial real estate developers, this heat pump delivers three core values: drastically reduced energy operating costs, simplified mechanical room layout without bulky storage tanks, and complete ESG carbon reduction compliance. For HVAC installers and system integrators, it offers a versatile, future-proof high-temperature DHW solution compatible with all mainstream European building automation platforms.

If you are upgrading old fossil fuel hot water systems, designing new low-carbon commercial venues, or sourcing high-efficiency heat pumps for European hospitality and education projects, the TONGYI direct heating commercial heat pump is your optimal all-in-one choice. Contact TONGYI European sales team to access full technical datasheets, installation manuals and local distributor support resources.

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