HIGH TEMPERATURE AIR TO WATER HEAT PUMP (95°C)
Designed for cold climates and high-temperature applications, ASTRA High-Temperature Heat Pumps deliver reliable heating and hot water up to 95°C using advanced two-stage inverter technology.
TWO-STAGE EVI DC INVERTER TECHNOLOGY
Maintains 95°C hot water even at −25°C ambient temperature, without auxiliary electric heaters.
WIDE OPERATING AMBIENT RANGE
Safe and reliable operation in extreme climates from −35°C to +43°C.
INTELLIGENT DC INVERTER CONTROL
Advanced DC inverter module and main control board provide precise water temperature regulation.
Uses R515b and R32 refrigerant for reduced environmental impact
STRONG HEATING PERFORMANCE EVEN IN COLD WEATHER
Working principle: Two-stage coupled system with R32 in Stage 1 and R515B in Stage 2 to reduce the operating compression ratio and thus improve the running efficiency under low ambient temperature.
TECHNOLOGY
Heat exchange component of R32 system and R515B system. R32 evaporation and heat absorption R515B condensation and heat release
FEATURE
The ASTRA heat pump features a two-stage heating design. The first stage uses R32 refrigerant for efficient operation down to −30 °C.
Application Ranges
Designed as a direct replacement for gas, oil, and electric boilers, the system provides space heating and domestic hot water in cold-climate conditions. It supports radiator-based heating systems and high-temperature hot water applications.
High Temperature
ASTRA is able to maintain 95℃ outlet water temperature even under ambient temperature down to -25℃ without auxiliary electric heater.
HIGH TEMPERATURE
Air to Water HEAT PUMP
GreenTech air-to-water inverter heat pump efficiently heats and provides hot water by transferring outdoor air heat to water, adjusting output to save energy.
Key Advantages:
- High efficient refrigerant (R32+R515)
- Low noise
- MAX Heating Outlet Water Temp : 95C
- Monoblock hydronic system
APPLICATION
Heating, Cooling, and Domestic Hot Water
CAPACITY
21,000 ~ 61,000 BTU/h
INSTALLATION
Residential and Commercial Buildings
| Model | GTHRW14ZA | ||
| Power supply | V/P/Hz | 220/1/60 | |
| Ambient 20℃ | Heating capacity | kW | 13.5 |
| Water outlet 75℃ | Power input | kW | 5.92 |
| COP | / | 2.3 | |
| Ambient 7℃ | Heating capacity | kW | 12.8 |
| Water outlet 75℃ | Power input | kW | 6.4 |
| COP | / | 2 | |
| Ambient -7℃ | Heating capacity | kW | 10.6 |
| Water outlet 75℃ | Power input | kW | 6.2 |
| COP | / | 1.7 | |
| Ambient -20℃ | Heating capacity | kW | 8.4 |
| Water outlet 75℃ | Power input | kW | 5.62 |
| COP | / | 1.5 | |
| Maximum power input | kW | 6.9 | |
| Maximum current input | A | 31.36 | |
| Maximum water outlet temperature | ℃ | 95 | |
| Rated water flow volume | m³/h | 2.15 | |
| Rated water pressure drop | kPa | 40 | |
| Water connections | inch | 1“ external threaded | |
| Refrigerant | R32+R515B | ||
| Sound level | dB(A) | 53 | |
| Waterproof level | IPX4 | ||
| Model | GTHT13 | ||
| Power supply | V/P/Hz | 220/1/60 | |
| Unit weight | kg | 139 | |
| Unit dimensions (L/W/H) | mm | 824/580/1360 | |
Installation Guide
Convenient control on the conversion of different heat sources which can be connected to the thermostats of terminal equipment, such as fan coil, floor heating manifolds.
Smart System Control
Automatically manages multiple heat sources and connects with thermostats, fan coils, and floor heating manifolds for seamless operation.
Automatic Operation
The heat pump starts when any terminal unit is activated and shuts down when all terminals are turned off, ensuring energy efficiency.
Flexible Application
Compatible with radiators, underfloor heating, fan coils, and hot water tanks to meet both space heating and domestic hot water needs.
Available to be equipped with all kinds of terminals, such as radiators, floor heating pipes, fan coils, and hot water tanks, to meet both space heating and hot water demands.