Basic Specifications
Work Environment
Low-temperature Heat Pump
Heating Type
Multi-power Heat
Application
Villa Family, Sauna and Swimming Pool, Hotels, Factory Hospital, Student Apartments, Beauty Salons
Certification
CE, CCC, RoHS
Circulation Type
Monobloc
Production Capacity
2000 Units/Year
Key Features of CO2 (R744) Heat Pump
🔥
High Temperature Output: Water can be heated up to 90°C, ideal for disinfection, cleaning, and reducing storage tank volume.
❄️
Extreme Low Ambient: Efficiently offers heat even in temperatures as low as -43°C.
📈
High Efficiency: Maximum COP of 5.5; multi-function models can reach COP 7 by providing free cooling during heat production.
🔄
Inverter Control: Dynamically adjusts power based on real-time requirements to maximize energy savings.
🧩
Modular Design: Supports combined installation to reach higher power capacities.
🛡️
Pressure Protection: Features 6 distinct layers of pressure safety protection.
⚡
Smart Defrosting: Intelligent inverter control saves up to 50% energy during the defrost cycle.
📱
Smart Controls: Wireless control supported, plus RS485/Modbus for central management.
🖐️
Digital Interface: Programmable interface with responsive touch keys.
🏗️
Monobloc Design: Simplified installation with no extra high-pressure refrigerant connection work required.
Technical Specifications
| Model |
7ZW |
8ZW |
14ZW |
25ZW |
40ZW |
50ZW |
75ZW |
120ZW |
| Standard Temperature Condition (Ambient 20°C, Outlet 60°C) |
| Performance |
Heating Cap. |
kW |
6.8 |
7.8 |
13.6 |
24 |
40 |
51 |
75.5 |
125.4 |
| Hot Water |
L/H |
129.9 |
149 |
259.8 |
458 |
764 |
974 |
1442 |
2396 |
| COP |
W/W |
4.5 |
4.58 |
4.6 |
4.5 |
4.4 |
4.5 |
4.5 |
4.7 |
| Low Temperature Condition (Ambient 7°C, Outlet 60°C) |
| Performance |
Heating Cap. |
kW |
5.8 |
7 |
12.1 |
20 |
35 |
45.6 |
64 |
95 |
| COP |
W/W |
3.9 |
4.1 |
4.1 |
4 |
3.7 |
3.8 |
3.8 |
3.9 |
| Unit Parameters |
| Dimensions |
Length |
mm |
520 |
910 |
910 |
1280 |
1803 |
1803 |
2046 |
2468 |
| Width |
mm |
520 |
430 |
430 |
800 |
830 |
830 |
1106 |
1368 |
| Height |
mm |
1700 |
1000 |
1000 |
1500 |
2100 |
2100 |
2300 |
2413 |
| Net Weight |
kg |
132 |
130 |
181 |
380 |
525 |
650 |
980 |
1350 |
| Noise Level |
dB(A) |
40 |
42 |
45 |
46 |
49 |
50 |
54 |
65 |
Frequently Asked Questions
What is the maximum water temperature the CO2 heat pump can provide?
The CO2 (R744) heat pump can heat water up to a maximum of 95°C, with a rated output temperature of 45-90°C depending on the application requirements.
Can this heat pump operate in extremely cold climates?
Yes, the unit is specifically designed for low-temperature environments and can efficiently provide heating even at ambient temperatures as low as -43°C.
What are the advantages of using R744 (CO2) refrigerant?
R744 is a natural refrigerant with zero ODP (Ozone Depletion Potential) and a GWP (Global Warming Potential) of 1. It allows for high-efficiency heat exchange and high-temperature water output.
How does the inverter control benefit the user?
Inverter technology allows the compressor to adjust its speed based on the actual heat demand. This prevents frequent start-stop cycles, saves energy, and extends the lifespan of the components.
What kind of control systems are supported?
The units use Carel controllers and feature a programmable digital touch interface. They support smart wireless control and central management via RS485/Modbus protocols.
Is the installation of a monobloc design difficult?
Actually, the monobloc design simplifies installation because all refrigerant components are sealed within the outdoor unit. There is no need for complex refrigerant piping on-site, only water pipe connections.