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| Place of Origin | China,Shunde |
| Brand Name | Dongyuan |
| Certification | ISO14001,ISO9001,OHSAS18001 |
| Model Number | L1PB20-NL |
Environmental Protection Energy Saving For Heating And Domestic Hot Water Wall Mounted Gas boiler
Technical data
| Model Number | L1PB20 |
| Gas Type | NG/LPG |
| Rated Gas Pressure(Pa) | 2000/2800 |
| Rated Gas Input(kw) | 20 |
| Rated Gas Output(kw) | 17.6 |
| Efficiency Under Rated Heat Input(%) | Above88% |
| Power Supply | 20-50HZ |
| Electric Power(W) | 110 |
| Temp.Range Of Heating Water(℃) | Radiator:30-80 Floor Heating:30-60 |
| Heating Area(㎡) | 80-160 |
| Lift Of pump(m) | 5 |
| Application Water Pressure(Mpa) | 0.1-0.3 |
| Expansion Tank Capacity(L) | 6 |
| Preset Pressure Of Expansion Vessel(Mpa) | 0.1 |
| Water Circulation Type | Airtight Forced Circulation |
| △T=25℃ Hot Water Supply(kg/min) | 10 |
| △T=30℃ Hot Water Supply(kg/min) | 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 |
- Sectional stainless steel condensing heat exchanger for condensation and utilization of latent of the water
vapors from exhausting smoke with efficiency till 90%.
- Indication of temperatures, working modes, current burner power and error codes on the color multifunctional
LED display.
- Integrated pump, expansion tank, heating safety valve,manometer,automatic air exhaust device.
- Air draught model. Open chamber, especially design for house type with collective flue.
- Two modifications: Bi-thermal pipe-in-pipe copper heat exchanger or with separate plate DHW heat exchanger.
- Steady ignition and work by low inlet gas pressure from 3mbar, full output by inlet gas pressure from 13mbar and higher.
- Multiple security devices ensure high safety grade including anti-freezing protection, overheat
protection, by-pass protection, and so on.
- Stable appearance,classic style, simple and handsome-one shell.
- Gas flow proportional control, variable frequency and energy- saving heating.
- 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.
- Support smooth control with open therm room thermostat from any producer.
- 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.
- All draught(open combustion chamber)and forced exhaust models.
- Integrated pump, expansion tank, heating safety,manometer, automatic air exhaust device.
- Multiple security devices ensure high safety grade including anti-freezing protection, overheat protection, by-pass
protection, and so on.
- Inteligent constant temperature control will provide easeful warmth for your rooms and comfortable shower water anytime.
-Touch buttons, big-screen dynamic LCD display, sensitive and comfortable.
- With efficient, energy saving and high lift water pump ensure boiler low noise while working.
- High quality copper waterway valves and pipe components ensure how water supplier reliable and comfortable.
- The main pars are come from famous brand supplier which ensure best quality.
- Unique remote control system realizing climate compensation function,ensure energy saving.
- With efficient, energy saving and high lift water pump ensure boiler low water supplier reliable and comfortable.
-Neat design, gas saving, high efficiency, environmental protected.
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