Place of Origin: China
Brand Name: SUNBOILER
It adopts a water-cooled low-temperature blue flame combustion method, which effectively reduces the furnace temperature and suppresses nitrogen oxide formation, easily achieving nitrogen oxide emissions below 30mg/Nm³. The furnace body uses a compact matrix-type water tube structure with fast thermal response and stable heat output. The built-in integrated corrosion-resistant condenser fully absorbs and utilizes the waste heat from flue gas, with thermal efficiency reaching up to 106%. The built-in stainless steel straight-tube heat exchanger enables multi-purpose use with one unit, easily achieving multi-circuit pressurized direct supply with different temperature differences and flow rates. Equipped with a high-performance intelligent controller, it features comprehensive safety protection, one-button operation, efficient, stable and safe operation, and can easily achieve IoT connectivity. The appearance is compact and aesthetically pleasing, allowing free combination, simple installation, and convenient transportation. It is widely used in schools, hospitals, hotels and restaurants, commercial residences, government units, and other places with heating and domestic hot water needs, as well as any industrial water heating facilities.
Innovative structural design with advanced dual-stage (air preheating + flue gas condensation) condensation heat exchange technology. While maximizing heat output, it fully absorbs the waste heat from flue gas. The exhaust temperature can be as low as 1-15°C above the return water temperature, achieving superior heat transfer efficiency with thermal efficiency reaching up to 106%.
Integrated water-cooled surface combustion with precise air-fuel ratio control maintains the optimal mixing ratio at all times. Low-temperature blue flame combustion ensures more complete combustion and ultra-low emissions of harmful substances, with nitrogen oxide emissions far below 30mg/Nm³.
Utilizes heat medium water to produce negative pressure steam at low-temperature boiling under negative pressure, which outputs heat. The negative pressure steam heats the cold water in the condensation heat exchanger. After condensation, the steam forms water droplets that flow back to the heat medium water to be reheated and vaporized, completing the entire cycle.
The boiler employs "air insulation layer" technology, with aluminum silicate and mirror aluminum foil applied to the furnace surface, significantly reducing heat loss.
One-button start/stop operation makes operation simpler and more intelligent. Full Chinese operation interface with multi-level menu operation authority management, automatically records operating parameters, curves, and faults. Multiple boilers can be easily controlled in coordination.
Made of SUS304 stainless steel with multi-pass straight-tube arrangement for high heat exchange efficiency. Can be used in single, parallel, or series connection to meet different heating requirements for temperature and pressure.
Cooperation with top global boiler component suppliers provides high-quality, reliable components, ensuring long-term stable operation of the equipment.
The boiler interior operates under vacuum conditions without oxidation corrosion or scale corrosion. The furnace tubes only contact the heat medium water, preventing boiler condensation corrosion. Combined with advanced manufacturing processes, this ensures long service life.
Widely used in schools, hospitals, hotels and restaurants, commercial residences, government units, and other places with heating and domestic hot water needs, as well as any industrial water heating facilities.
| Rated thermal power | MW | 0.35 | 0.7 | 1.05 | 1.4 | 1.75 | 2.1 | 2.8 | 3.5 | 4.2 | 4.9 | 5.6 | 6.3 | 7 | |
| *104kcal/h | 30 | 60 | 90 | 120 | 150 | 180 | 240 | 300 | 360 | 420 | 480 | 540 | 600 | ||
| Design thermal efficiency | % | 98-106 | |||||||||||||
| NOx | mg/Nm3 | ＜30 | |||||||||||||
| Combustion mode | - | Water-cooled premixed low-nitrogen combustion（WCPB-T/GC） variable frequency proportional regulation | |||||||||||||
| Power type | V/Hz | 220-380/50 | |||||||||||||
| Electric Power | kW | 1.1 | 2.2 | 4 | 5.5 | 5.5 | 7.5 | 11 | 11 | 15 | 22 | 22 | 30 | 30 | |
| Natural Gas | consumption | Nm3/h | 33.9 | 67.9 | 101.8 | 135.7 | 169.7 | 203.6 | 271.5 | 339.4 | 407.2 | 475.1 | 543 | 610.9 | 678.7 |
| valve set diameter | DN | 40 | 40 | 50 | 50 | 50 | 65 | 65 | 65 | 65 | 80 | 80 | 80 | 80 | |
| gas pressure | kPa | 3~5 | 3~5 | 7~10 | 7~10 | 10~15 | 10~15 | 15~20 | 15~20 | 15~20 | 20~25 | 20~25 | 25~30 | 25~30 | |
| safety valve interface | DN | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | |
| water inletexhaust vent （N5） | DN | 20 | 20 | 20 | 20 | 25 | 25 | 25 | 25 | 32 | 32 | 40 | 40 | 40 | |
| Condenser water outlet | DN | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | |
| Heat exchanger drain port | DN | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | |
| drain outlet | DN | 20 | 20 | 20 | 20 | 25 | 25 | 25 | 25 | 32 | 32 | 40 | 40 | 40 | |
| Exhaust Port（N9） | mm | φ219 | φ273 | φ325 | φ377 | φ426 | φ480 | φ530 | φ580 | φ630 | φ720 | φ720 | φ820 | φ820 | |
| weight of boiler | Kg | 1710 | 2730 | 3920 | 4310 | 5420 | 5800 | 7590 | 9850 | 10920 | 12600 | 14300 | 15800 | 16600 | |
| Heat ExchangerΔt=10℃ | Rated Pressure | MPa | 1.0/1.25/1.6/2.0 | ||||||||||||
| Supply & Return Water Temperature | ℃ | 60/50 | |||||||||||||
| N1 Water Supply Port N1Water Return Port N2 | DN | 100 | 125 | 150 | 150 | 200 | 200 | 200 | 250 | 250 | 300 | 300 | 350 | 350 | |
| Rated Flow Rate | m3/h | 30.1 | 60.2 | 90.3 | 120.4 | 150.5 | 180.6 | 240.8 | 300.9 | 361.1 | 421.3 | 481.5 | 541.7 | 601.9 | |
| Heat ExchangerΔt=20℃ | Rated Pressure | MPa | 1.0/1.25/1.6/2.0 | ||||||||||||
| Supply & Return Water Temperature | ℃ | 80/60 | |||||||||||||
| Supply Port N1Return Port N2 | DN | 65 | 80 | 100 | 125 | 150 | 150 | 150 | 200 | 200 | 200 | 200 | 250 | 250 | |
| Rated Flow Rate | m3/h | 15 | 30.1 | 45.1 | 60.2 | 75.2 | 90.3 | 120.4 | 150.5 | 180.6 | 210.7 | 240.8 | 270.9 | 300.9 | |
| Heat ExchangerΔt=40℃ | Rated Pressure | MPa | 1.0/1.25/1.6/2.0 | ||||||||||||
| Supply & Return Water Temperature | ℃ | 60/20 | |||||||||||||
| Supply Port N1 Return Port N2 | DN | 50 | 65 | 80 | 80 | 100 | 100 | 125 | 150 | 150 | 150 | 150 | 200 | 200 | |
| Rated Flow Rate | m3/h | 7.5 | 15 | 22.6 | 30.1 | 37.6 | 45.1 | 60.2 | 75.2 | 90.3 | 105.3 | 120.4 | 135.4 | 150.5 | |
| The product is continuously innovated and improved, and the above parameters may change. The drawings are the final reference. | |||||||||||||||
| Fuel calculation base value: natural gas lower heating value 8500 kacl/Nm³. | |||||||||||||||
Overall Dimensions
| Heat Output*10⁴kacl/h | PowerkW | L(mm) | L1(mm) | W(mm) | W1(mm) | H(mm) | H1(mm) | H2(mm) |
| 30 | 350 | 3000 | 2830 | 840 | 790 | 1770 | 1650 | 120 |
| 60 | 700 | 3420 | 3250 | 1000 | 950 | 2070 | 1950 | 120 |
| 90 | 1050 | 3920 | 3750 | 1160 | 1110 | 2270 | 2150 | 120 |
| 120 | 1400 | 4000 | 3780 | 1360 | 1310 | 2370 | 2200 | 170 |
| 150 | 1750 | 4550 | 4330 | 1360 | 1310 | 2570 | 2400 | 170 |
| 180 | 2100 | 4550 | 4330 | 1520 | 1470 | 2620 | 2450 | 170 |
| 240 | 2800 | 4750 | 4530 | 1720 | 1670 | 2820 | 2650 | 170 |
| 300 | 3500 | 5750 | 5530 | 1720 | 1670 | 3220 | 3050 | 170 |
| 360 | 4200 | 5750 | 5530 | 1960 | 1910 | 3220 | 3050 | 170 |
| 420 | 4900 | 6350 | 6300 | 2200 | 2150 | 3220 | 3050 | 170 |
| 480 | 5600 | 6350 | 6300 | 2400 | 2350 | 3220 | 3050 | 170 |
| 540 | 6300 | 6550 | 6300 | 2600 | 2550 | 3220 | 3050 | 170 |
| 600 | 7000 | 6550 | 6300 | 2800 | 2750 | 3220 | 3050 | 170 |
| The product is continuously innovated and improved, and the above parameters may change. The drawings are the final reference. | ||||||||
1. Selected international top-brand components
2, Intelligent control with direct internet connectivity, supporting both PC and mobile platforms
3. Comprehensive safety protection functions ensure safe and stable operation of the equipment
