Modulex EXT

Modulex, the floor standing condensing gas fired boiler is available for both indoor and outdoor installations with unique patented features. The design of the boiler is to maximise efficiency through condensation of the flue gases and to minimise the effects on the enviroment. The combination of premixed radiating combustion with high turn down ratios produces unparalleled efficiency throughout the operating range of the boilers.

Extremely Silent and Reliable

Modulex EXT are to the forefront of Condensing boilers. Due to the modular design huge flexibility exists. With turn down ratios ranging from 1:39 depending on the model, Modulex is sure to be able to match the varying heat load of the application. Due to the multi-burner design high redudancy exists within a single boiler should any burner fault. In a fault condition the boiler will continue to operate although at reduced output.

Noise level of the largest size Modulex does not exceed 50db making them suitable for installation in noise sensitive areas such as Schools, Nursing Homes, Apartments Buildings Etc.

Modulex EXT Series

The Right Solution for Demanding Projects

The Modulex EXT rangle of boilers may be used alone or in cascade with one or more boilers. Their space saving design, simple service access, the ability to reverse the water and gas connections from right hand side to left hand side and the ability to set the flue connection on three sides makes them flexible enough for installation in almost any locations.

Materials of Constructions

Modulex boilers are manufactured of high quality cast Aluminium Silicon which is highly resistant to corrosion and thermal shock, providing longer life time. Aluminium Silicon provides one of most effiicient heat transfer materials, has up to 7 times more thermal co-efficient transfer capacity than stainless steel and is lighter weight. The action of the flue gases and condensate is self-cleaning in the heat exchanger by flowing downwards to the flue way.

Modulex EXT Controller

Modulex boilers apply a dedicated E8 Heating Controller which permits a decisive qualitative leap in boiler management depending on the applied loads. The E8 as well as becoming the window of dialogue with the boiler thanks to its features permits the complete management of the central heating system, exploting the maximum modulating output and the maximum obtainable condensation.

Management of the heating system through the E8 Heating Controller has facility to manage two individual heating circuits, a domestic hot water heating system linked with solar and a temperature dependant output releated to ambient conditions.

In addition the boiler can be fitted with:

  • High Level Interface via Modbus
  • 0 - 10 Volt Analogue Output for control of Modulating Pump
  • Alarm Reset Input
  • Alarm Relay Output

Note: Modulex EXT boilers must be installed with a Hydraulic Separator.

Performance Data

Model Thermal Output Net Efficiency 60/80 °C Net Efficiency 30/50 °C Modulation Ratio Number of Burners Total Water Volume Min Water Flow (Δt=20K) Nominal Water Resistance DryWeight
  kW min input min input     L L/sec kPa kg
MX100EXT 95 97.16 106.5 1:8 2 10 1.2 14 203
MX150EXT 192 97.16 106.5 1:12 3 14 1.7 16 236
MX200EXT 240 97.16 106.5 1:16 4 18 2.3 16 295
MX250EXT 288 97.16 106.5 1:20 5 22 2.9 16 325
MX300EXT 336 97.16 106.5 1:24 6 26 3.5 16 386
MX350EXT 387 97.16 106.5 1:28 7 31 4.1 16 419
MX440EXT 432 93.5 107.22 1:19 4 67 5.0 15 501
MX550EXT 540 93.5 107.22 1:25 5 80 6.3 18 595
MX660EXT 648 93.5 107.22 1:29 6 94 7.6 20 657
MX770EXT 756 93.5 107.22 1:34 7 108 8.8 22 754
MX900EXT 864 93.5 107.22 1:39 8 122 10.1 20 906

Maximum working pressure 800 kpa. Gas Pressure Range 1.1 - 4.0Kpa.

Dimensional Data

Model Width (L) Depth (C) Height Connections Flow Connections Return Gas Connections Flue Diameter
  mm mm mm mm mm mm mm
MX100EXT 764 770 1150 64 64 50 150*/200
MX150EXT 764 770 1150 64 64 50 150*/200
MX200EXT 1032 770 1150 64 64 50 150*/200
MX250EXT 1032 770 1150 64 64 50 200
MX300EXT 1300 770 1150 64 64 50 200
MX350EXT 1300 770 1448 64 64 50 200
MX440EXT 1087 946 1148 100 100 80 300
MX550EXT 1355 946 1448 100 100 80 300
MX660EXT 1355 946 1448 100 100 80 300
MX770EXT 1623 946 1448 100 100 80 300
MX900EXT 1623 946 1448 100 100 80 300

(*) the flue connection adaptor 200/250 is included in the boiler delivery.

For orders or enquiries, please call +61 3 9460 2800 or use our online enquiry form.


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