20KW-28LW Household Heating Water Heater Gas Boilers Combi
Features
1. High Efficiency And Energy Saving: up to 93% heating/bathing thermal efficiency, national second-level energy saving.
2. Low Water Pressure Start: low pressure combustion, water consumption during peak hours, high-rise users, suitable for more installation environments.
3. One-Button Switching Of Firepower: adjust the number of burners according to the actual needs of users, warm in winter and not hot in summer
4. Intelligent Constant Temperature: widened pipe diameter design, improved heating efficiency, continuous hot water, intelligent constant temperature technology, small fluctuations in water temperature difference.
5. Leakage Protection Plug: Gas Combi Boiler in case of accidental leakage, quickly cut off the power supply.
6. High-Strength Bracket: anti-corrosion and durable, strong supporting ability.
7. Antifreeze Protection: The sensor monitors the water temperature. If it is lower than 8°C, the water pump will run normally; if it is lower than 5°C, it will ignite and burn, and then stop when it burns to 30°C; if it is lower than 3°C, the machine will automatically prompt the user to perform antifreeze treatment.
Detail
-Nature of power:220V~ 50Hz
-Rated electric power:130W
-Bath preheating power:180W
-Minimum heat load electric power:120W
-Standby power (when WiFi is not configured):1.7W
-Dimensions (length x width x height):740x420x317mm
-Applicable pressure:1500~3000Pa
-Heating system maximum water pressure:0.3 MPa
-Applicable water pressure for domestic hot water system:0.02~0.8 MPa
Product Parameter
|
Energy efficiency rating |
level 2 |
Rated heat load hot water thermal efficiency (%) 89 | ||
| 50% rated thermal load hot water thermal efficiency (%):85 | ||||
| Rated heat load heating thermal efficiency (%): 89 | ||||
| 30% rated heat load heating thermal efficiency (%): 85 | ||||
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heating system performance |
Rated heat input |
9.6~24kW |
11.2~28kw |
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Rated heat output |
8.3~21.6 kW |
9.6~25kw |
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domestic hot water System performance |
Rated heat input |
5.4~24 kW |
5.4~28kw |
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Rated heat output |
4.9~21.6kw |
4.9~25kw |
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Domestic hot water flow Δt=25K |
12 kg/min |
14 kg/min |
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Domestic hot water flow Δt=30K |
10 kg/min |
11.6 kg/min |
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thermal efficiency value |
Heating system: n1≥90%; domestic hot water system: n1≥90% |
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FAQ
