In line with ErP regulation, from 31st December 2017 the NXR3i and NXR4i 8-Section boilers will no longer be available. The last order date will therefore be 1st December 2017. Subject to availability.

  • Six boiler outputs ranging from 100kW to 330kW suitable for different sizes of application
  • Fully integrated control system to maintain optimum performance
  • Oil, 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   4-105 5-140 6-180 7-230 8-280 9-330
Performance Fuel        
Output @ 80 / 60oC NG kW 100 140 180 230 280 330
Output @ 80 / 60oC Oil kW 100 140 180 230 280 330
Input (Net) Maximum Oil kW 116.7 156.3 199.1 252.8 308.8 361.3
Efficiency
Part L2 Seasonal Efficiency (NG) % Gross 83 82 82 82 82 83
Part L2 Seasonal Efficiency (Oil) % Gross 84 84 84 85 85 85
Gas
Gas Consumption (NG)  m3/h 12.1 16.2 20.6 26.3 32.1 37.5
Gas Consumption (Heating Oil 35 - sec)  Kg/h 12.3 16.3 20.8 26.5 32.4 37.8
Inlet Gas Pressure (NG G20)  m/bar

Dependent on Burner

Inlet Oil Pressure  m/bar

Dependent on Burner

Flue
Flue Gas Volume - NG  kg/h 187 250 321 410 499 588
Flue Gas Volume - Oil  kg/h 178 238 306 391 475 560
Max Flue Gas Pressure @ Outlet  m/bar

0**

Flue Gas Temperature  oC

210

Hydraulic            
Water Flow Rate @ 11oC ΔT  l/s 9.03 12.04 15.48 19.78 24.08 28.37
Water Flow Rate @ 20oC ΔT  l/s 4.51 6.02 7.74 9.89 12.04 14.19
Hydraulic Resistance @ 10oC ΔT  kPa 11 18 31 46 68 105
Hydraulic Resistance @ 20oC ΔT  kPa 2.6 4.2 8 11 17 26
Water Content  Litres 96 116 136 156 176 196
Flow & Return Connection Size  inch 2.5" 2.5" 2.5" 2.5" 2.5" 2.5"
Flow & Return Connection Type

Welded

Flue Connection Size  mm

180ø

180ø

Max Boiler Operating Pressure  bar

6

Min Boiler Operating Pressure  bar

1

Maximum Flow Temperature  oC

85

General
Appliance Dry Weight  Kg 612 736 846 981 1103 1230
Dimension W x D x H (excluding burner)  mm 800 x 991 x 1432 800 x 1151 x 1432 800 x 1311 x 1432 800 x 1471 x 1432 800 x 1631 x 1432 800 x 1791 x 1432
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  234 312 398 506 618 722
Low Level Ventilation* (BS 6644)  cm2 468 624 796 1012 1236 1444
Electrical
Power consumption  W 2 amp max burner - refer to manufacturer for burner details. 1 amp 230 volt 50hz max pump control output
Nominal supply voltage  V / Hz

230 v 1 Ph 50 Hz

** The pressure at the flue outlet must not exceed m/bar

floor standing boilerDimensions and clearance measurements for all models of the NXR3i 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

 

NXR3i  4-105  5-140  6-180  7-230  8-280  9-330 
A Width 800 800 800  800  800  800 
B Height 1432 1432  1432  1432  1432  1432 
C Depth 991 1151  1311 1471  1631  1791 

 

Clearances

NXR3i  4-105  5-140  6-180  7-230  8-280  9-330 
1  Front 1500 1500  1500  1500  1500  1500 
2  L Hand 500 500  500  500  500  500 
3  Top 400 400  400  400  400  400 
4 Back 1000 1000  1000 1000  1000  1000 
5 R Hand 500 500  500  500  500  500 

 

 

Learn more about the NXR3i by downloading product literature.

Find out more about the NXR3i by reading the case studies 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

  • NXR3i - All CAD files (1.14MB, 03/07/2015)
  • NXR3i-4 (0.23MB, 22/12/2014)
  • NXR3i-5 (0.23MB, 22/12/2014)
  • NXR3i-6 (0.23MB, 22/12/2014)
  • NXR3i-7 (0.23MB, 22/12/2014)
  • NXR3i-8 (0.23MB, 22/12/2014)
  • NXR3i-9 (0.23MB, 22/12/2014)
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