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Commercial R290 Inverter Heat Pumps 50–160 kW
Heating · Cooling · DHW ｜ Full DC Inverter + EVI ｜ Up to 75°C Outlet ｜ -25°C Operation
🌿 R290 · GWP 3 ⚡ 50–160 kW 🌡️ Up to 75°C Outlet ❄️ -25°C Ambient 🔇 From 54 dB(A) Night Mode 📱 WiFi / 4G / BMS
Designed for commercial heating, cooling, and domestic hot water applications, the KLR series combines R290 refrigerant, full DC inverter technology, and EVI for stable low-temperature performance. With a 5-step capacity ladder from 50 kW to 160 kW, it suits apartment buildings, hotels, offices, and industrial facilities.
🏭 2003Established
📐 30,000 m²Modern Factory
👥 250Employees
📦 36,000Units / Year
🌍 50+Countries
Key Features
🔧 Core Technology
- Natural Refrigerant R290 — GWP 3, F-Gas compliant
- Full DC Inverter — 30–110 Hz compressor modulation
- EVI Low-Temperature Heating — Stable down to -25°C
- High-Temperature Output — Up to 75°C outlet water
📡 Smart & Quiet
- Intelligent Control — 7" touchscreen, WiFi/4G, group control for up to 16 units
- Quiet Engineering — Serrated fans, inverter compressors, night mode from 54 dB(A)
- MPPT Solar Ready — Optional built-in MPPT for direct PV connection
Technical Specifications – Heating Performance
| Parameter |
KLR-1275 |
KLR-1700 |
KLR-2125 |
KLR-2550 |
KLR-4250 |
| Rated Capacity A7/W35 |
50 kW |
70 kW |
80 kW |
110 kW |
160 kW |
| Rated Input Power |
11.5 kW |
15.5 kW |
19.0 kW |
24.7 kW |
36.3 kW |
| COP A7/W35 |
4.51 |
4.49 |
4.46 |
4.45 |
4.41 |
| Capacity A-7/W35 |
41.6 kW |
56.0 kW |
68.0 kW |
88.0 kW |
128.0 kW |
| COP A-7/W35 |
3.1 |
3.1 |
3.1 |
3.1 |
3.3 |
| Max Outlet Temp. |
75°C |
75°C |
75°C |
75°C |
75°C |
| Ambient Range |
-25–43°C |
-25–43°C |
-25–43°C |
-25–45°C |
-25–43°C |
| Compressor Qty |
1 |
2 |
2 |
2 |
4 |
Standard condition: outdoor dry-bulb 7°C / 6°C; water 30°C / 35°C. Actual performance varies with installation and operating conditions.
Electrical & Hydraulic Data
| Parameter |
KLR-1275 |
KLR-1700 |
KLR-2125 |
KLR-2550 |
KLR-4250 |
| Power Supply |
380V / 3N / 50-60Hz |
| Max Input Power |
16 kW |
22 kW |
27 kW |
35 kW |
51 kW |
| Max Input Current |
25 A |
33 A |
41 A |
53 A |
77 A |
| Aux. Heater (Optional) |
12 kW |
18 kW |
24 kW |
36 kW |
48 kW |
| Rated Water Flow |
8.9 m³/h |
12.0 m³/h |
14.6 m³/h |
18.9 m³/h |
27.5 m³/h |
| Min. Water Flow |
3.6 m³/h |
4.8 m³/h |
5.8 m³/h |
7.6 m³/h |
11.0 m³/h |
| Pipe Connection |
DN50 |
DN50 |
DN65 |
DN65 |
DN80 |
| Max Water Pressure |
3.5 MPa |
Structure, Refrigerant & Acoustic Data
| Parameter |
KLR-1275 |
KLR-1700 |
KLR-2125 |
KLR-2550 |
KLR-4250 |
| Compressor Type |
DC Inverter + EVI Scroll |
| R290 Charge |
7.0 kg |
7.6 kg |
9.2 kg |
10.0 kg |
13.0 kg |
| Noise Day / Night |
60 / 55 dB(A) |
62 / 56 dB(A) |
62 / 56 dB(A) |
65 / 58 dB(A) |
68 / 60 dB(A) |
| Dimensions L×W×H |
1525×850×1575mm |
2000×1150×1575mm |
2200×1150×1525mm |
2200×1150×1525mm |
2450×1300×2260mm |
| Net Weight |
315 kg |
476 kg |
560 kg |
720 kg |
850 kg |
Performance Curves Summary
Six EN-style operating points for low-temperature and medium-temperature water supply. Curves are indicative catalogue data aligned with A+++ positioning. Certified EN14511/EN14825 values available upon request.
| Model |
A7/W35 |
A7/W55 |
A-7/W35 |
A-7/W55 |
A-15/W35 |
A-15/W55 |
| KLR-1275 |
50 kW / COP 4.51 |
— |
41.6 kW / COP 3.1 |
— |
— |
— |
| KLR-1700 |
70 kW / COP 4.49 |
— |
56.0 kW / COP 3.1 |
— |
— |
— |
| KLR-2125 |
80 kW / COP 4.46 |
— |
68.0 kW / COP 3.1 |
— |
— |
— |
| KLR-2550 |
110 kW / COP 4.45 |
— |
88.0 kW / COP 3.1 |
— |
— |
— |
| KLR-4250 |
160 kW / COP 4.41 |
— |
128.0 kW / COP 3.3 |
— |
— |
— |
Smart Control – 24/7 Visibility
📊 Remote Monitoring
- Real-time operating data and controls
- Historical performance and energy records
- Live temperatures, pressures, compressor frequency
- Web portal and mobile app access
⚙️ Smart Optimization
- Load- and schedule-based energy management
- SMS / APP / email alarm notifications
- OTA remote software updates
- Open API for BMS integration
- 10–20% additional energy savings through intelligent scheduling
Built-in MPPT – Solar First, Grid Assured
Optional integrated MPPT enables direct photovoltaic connection without external inverters or battery storage.
☀️ Solar-OnlyStrong irradiance · 0% grid
🔀 HybridVariable sunlight · Dynamic blend
⚡ Grid SupplementLow irradiance · Grid majority
🌙 Grid-OnlyNight · 100% grid
- No external inverter required
- No battery bank
- Automatic PV / grid balancing
- No grid backfeed
Local Control – 5-inch Color Touchscreen
- Temps — Inlet, outlet, tank and room values on one screen
- Setpoint — Large central display for quick temperature adjustment
- Menus — Fast access to mode, settings, inquiry and timer
- Status Icons — Operating state, WiFi, alarms and protection at a glance
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