• Seven boiler outputs ranging from 357kW to 729kW making it suitable for larger applications
  • Fully integrated control system to maintain optimum performance
  • Oil fired, natural gas, LPG and dual fuel options for flexible siting
  • Commissioning and erection services available to support you throughout the project

View product specification

When clicked this will open the product specification in PDF format.

 

Specification

Model    8-357  9-419  10-481  11-543  12-605  13-667  14-729 
Performance Fuel Type
Output @ 80 / 60oC NG kW 357 419 481 543 605 667 729
Input (Net) Maximum NG kW 394 462 530 597 666 731 798
Output @ 80 / 60oC Oil kW 357 419 481 543 605 667 729
Input (Net) Maximum Oil kW 394 462 530 597 666 731 798
Efficiency
Efficiency @ 80 / 60oC NG  % Gross 82 82 82 82 82 83 83
Efficiency @ 80 / 60oC Oil (35sec)  % Gross 85 85 85 85 85 85 85
Gas  
Gas Consumption (NG)  m3/h 41.2 48.4 55.5 62.5 69.7 76.5 83.6
Gas Consumption (Heating Oil 35sec)  Kg/h 35.6 41.8 47.9 54 60.2 66.1 72.2
Inlet Gas Pressure (NG G20)  m/bar

Dependent on Burner

Gas Connection Size  inch

Dependent on Burner

Gas Connection Type

Dependent on Burner

Flue  
Flue Gas Volume - NG  kg/h 630 740 850 960 1070 1170 1280
Flue Gas Volume - Oil (35 sec)  kg/h 600 710 810 910 1020 1120 1220
Flue Gas Temperature  oC

<190

Max Flue Gas Pressure @ Outlet  m/bar

0

Hydraulic
Water Flow Rate @ 11oC ΔT  m3/h 27.9 32.8 37.6 42.5 47.3 52.2 57
Water Flow Rate @ 20oC ΔT  m3/h 15.4 18 20.7 23.4 26 28.7 31.4
Hydraulic Resistance @ 11oC ΔT  kPa 21 34 52 69 87 112 140
Hydraulic Resistance @ 20oC ΔT  kPa 6 10 16 21 26 34 42
Water Content  Litres 366 409 452 495 538 581 624
Flow & Return Connection Size  inch 2.5" 2.5" 2.5" 3" 3" 3" 3"
Flow & Return Connection Type

Welded

Flue Connection Size  mm

250

250 250

300

300 300 300
Max Boiler Operating Pressure  bar

6

Min Boiler Operating Pressure  bar

1

Maximum Flow Temperature  oC

90

General
Appliance Dry Weight  Kg 1802 2072 2238 2454 2638 2880 3057
Dimension W x D x H (excluding burner) mm 1000 x 1800 x 1500 1000 x 1950 x 1500 1000 x 2120 x 1500 1000 x 2305 x 1500 1000 x 2425 x 1500 1000 x 2625 x 1500 1000 x 2785 x 1500
NOx Level (Dry @ 0% O2) mg/kWh

 Dependent on Burner

CO2 Content - Natural Gas %

 9.5

CO2 Content - Oil %

13

Noise Levels @ 1 metre from unit dB(A)

Dependent on Burner

High Level Ventilation* (BS 6644 cm2 788 924 1060 1194 1332 1462 1596
Low Level Ventilation* (BS 6644) cm2 1576 1848 2120 2388 2664 2924 3192
Electrical
Power consumption  W

Dependent on Burner

Nominal supply voltage  V / Hz

230 v 1 Ph 50 Hz

 

floor standing boilerDimensions and clearance measurements for all models of the NXR4i are featured in the tables below.

If you can't find the information you are looking for, you may find it within the product literature.

If you would like to speak to your local Area Sales Manager, please complete the online form within the enquiry tab.

 

 

 

Dimensions

 

NXR4i 8-357 9-419  10-481  11-543  12-605  13-667  14-729
A Width 1000 1000 1000 1000 1000 1000 1000
B Height 1740 1740 1740 1740 1740 1740 1740
C Depth 180 1950  2120 2305  2465  2625  2785 

 

Clearances

NXR4i 8-357  9-419  10-481  11-543  12-605  13-667  14-729 
1 Front 1500 1500 1500 1500 1500 1500 2500
2 L Hand 500 500 500 500 500 500 500
3 Top 500 500 500 500 500 500 500
4 Back 1000 1000 1000 1000 1000 1000 1000
5 R Hand 500 500 500 500 500 500 500

Learn more about the NXR4i by downloading product literature.

Find out more about the NXR4i by reading the case study below.

Download CAD files for this product using the links below. To access CAD files you will need the correct software installed to allow you to open .dwg files such as AutoCAD

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