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| Place of Origin | China,Shunde |
| Brand Name | Dongyuan |
| Certification | ISO14001,ISO9001,OHSAS18001 |
| Model Number | L1PB20-NE |
High Thermal Efficiency Gas Central Heating Manufacturer For Hot Water And Heating Gas Hot Water Boiler
Technical data
| Model Number | LIPB18 | L1PB20 |
| Gas Type | NG/LPG | |
| Rated Gas Pressure(Pa) | 2000/2800 | |
| Rated Gas Input(kw) | 18 | 20 |
| Rated Gas Output(kw) | 15.9 | 17.6 |
| Efficiency Under Rated Heat Input(%) | Above88% | |
| Power Supply | 20-50HZ | |
| Electric Power(W) | 110 | 110 |
| Temp.Range Of Heating Water(℃) | Radiator:30-80 Floor Heating:30-60 | |
| Heating Area(㎡) | 70-140 | 80-160 |
| Lift Of pump(m) | 5 | 5 |
| Application Water Pressure(Mpa) | 0.1-0.3 | |
| Expansion Tank Capacity(L) | 6 | 6 |
| Preset Pressure Of Expansion Vessel(Mpa) | 0.1 | |
| Water Circulation Type | Airtight Forced Circulation | |
| △T=25℃ Hot Water Supply(kg/min) | 9 | 10 |
| △T=30℃ Hot Water Supply(kg/min) | 7.5 | 8.3 |
| Temp.Range Of DHW Supply(℃) | 30-60 | |
| Applicative Water Pressure(mpa) | 0.03-0.8 | |
| The Minimum Starting Flow (L/min) | 2 | |
| The Minimum Closed Flow(L/min) | 1.6 | |
| Connections(mm) | For Gas&Heating Water Pipes:G3/4 For DHW Pipes:G1/2 | |
| Air Input/Exhaust Duct(mm) | φ60/φ100 | |
| Sparated Input/Exhaust Duct(optional) | φ80/φ100 | |
| The length Of Flue Dust(m) | 1 | |
| Noise On Working(DB) | ＜42 | |
| Exhaust Type | Forced Exhaust | |
| Ignition Type | Integrated Automatic Ignition | |
| Temperature Control | Gas Proportional Adjustment | |
| Product Dimensions(mm) | 740*400*305 | |
| Packing Dimensions(mm) | 865*470*385 | |
| Container(20GP/40GP/40HQ) | 17//357/434 | |
- With control circuit boards, control centers for high-intelligent equipment operation and safety protection.
- With multi- stage intelligent antifreeze, multi-stage combustion, the temperature is less than 8 degrees celsius
to start automatically, the pump after the cycle in the burning to stop working, the pump.
- Ultra-low pressure start, hot water hot start, short time cycle control, circulation pump delay control.
- With LED all- round electronic display.
- The temperature gradient control function and the three anti freezing control are unique, and the safety protection
is up to 28. The design life of the whole machine is more than 15 years.
- Low noise design, using cast aluminum fan, intelligent control gas proportional valve, with special combustion
and water system, running noise is less than 42 dicebel.
- The invention patent high-frequency electronic anti scaling device and the original windbreak and sand structure
design are committed to manufacturing gas wall hanging stove products suitable for our conditions.
- Fan burner with full gas- air premix provides gas combustion with close to ideal conditions-so the condensation
process begin earlier and by higher return line temperature(about 57℃)
- Modulation: boiler output changes automatically to keep the set heating and DHW temperature constant, with great
optimization of gas consumption.
- Integrated pump, expansion tank, heating safety valve,manometer,automatic air exhaust device.
- Frost protection: burner and pump will be switch on automatically by danger of freezing, It is allowed to use
antifreeze liquid instead of water in the heating system.
- Neat design, gas saving, high efficiency, environmental protected. Adopt advanced technology, high quality components,
high efficiency combustion.
- Easy operation. With 2 knobs for mode choosing and function option,another 5 indicating lights for indicating working
condition of boiler.
- Can be connected with room thermostat or remote controller which providing more function options.
- Various structure available,suitable for different using condition.
- Indication of temperatures, working modes, power level and error codes on the color multifunctional LED display.
- Frost protection: Burner and pump will be switch on automatically by danger of freezing. It is allowed to use antifreeze
liquid instead of water in the heating system.
- Protected service menu for internal functions and working parameters adjusting.
- Universal main PCB fully compatible with other models of Dongyuan boilers.
- Multiple security devices ensure high safety grade including anti-freezing protection, overheat protection, by-pass protection, and so on.
- Time and temperature would be set within one week beforehand ,enjoy the heating and shower freely.
- With special function of temperature saving, the temperature would be judged automatically
- With system monitoring all the time and three level for anti-frozen in winter to protect your family.
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