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Modulex EXT Series 

Modulating Condensing Hot Water Boilers

 

LIGHT COMMERCIAL MODELS:

 

  MLX EXT 450 2S 

  MLX EXT 600 2S 

  MLX EXT 800 2S 

  MLX EXT 1100 2S 

COMMERCIAL MODELS: 

  MLX EXT 1500 2S 

  MLX EXT 2300 2S 

 

MLX EXT 2600 2S 

  MLX EXT 3000 2S 

 

Application Guide 

Disclaimer 

The information contained in this manual is subject to change without notice 
from AERCO International, Inc. AERCO makes no warranty of any kind with 
respect to this material, including, but not limited to, implied warranties of 
merchantability and fitness for a particular application. AERCO International is 
not liable for errors appearing in this manual or for incidental or consequential 
damages occurring in connection with the furnishing, performance, or use of 
these materials. 

 

Heating and Hot Water Solutions 

AERCO International, Inc.  •  100 Oritani Drive • Blauvelt, NY 10913 

USA: T: (845) 580-

8000 • Toll Free: (800) 526-0288 • AERCO.com 

Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST 

© 2021 AERCO 

TAG-0096     

•   10/06/2021 

Содержание EXT Series

Страница 1: ...rranty of any kind with respect to this material including but not limited to implied warranties of merchantability and fitness for a particular application AERCO International is not liable for errors appearing in this manual or for incidental or consequential damages occurring in connection with the furnishing performance or use of these materials Heating and Hot Water Solutions AERCO Internatio...

Страница 2: ... boiler can be safely operated at pressures ranging from 3 5 W C to 10 5 W C 3 GAS PRESSURE REQUIREMENTS AERCO Modulex EXT boilers require a stable gas input pressure The inlet supply to the unit must be at least 3 5 W C when firing at maximum input A minimum supply gas pressure switch prevents the boiler from operating without sufficient pressure Maximum allowable gas pressure is 10 5 W C Static ...

Страница 3: ...ultiple units are installed some utilities and local codes require a full size drip leg on the main gas supply line in addition to the drip leg at each unit The bottom of the gas drip leg s should be removable without disassembling any gas piping The weight of the gas pipe should not be supported from the bottom of the drip leg The drip leg s should not be used to support any or part of the gaspip...

Страница 4: ...onnected input within the allowable gas pressure drop The allowable minimum and maximum gas pressure for each device should be considered Whenever the minimum and maximum gas pressures vary between devices gas pressure regulators at each unit should be installed to allow regulation at any individual unit Gas pressure must never exceed the maximum allowable rating of any connected device The total ...

Страница 5: ...above or behind boiler Gas piping should not be installed directly over top or front of any part ofboiler Figure 2 Typical Multiple Boiler Gas Manifold Construction Ensure proper clearances for maintenance Piping should not interfere with the removal of the unit s sheet metal nor impede maintenance Observe service clearances around the boiler as listed below and as shown in Figures 3 4 and 5 EXT 4...

Страница 6: ...6 0288 Figure 3 MODULEX EXT 450 2S 1100 2S Boiler Clearances Figure 4 MODULEX EXT 1500 2S 3000 2S Boiler Clearances NOTE Standard locations for components connections are on the right hand side Dotted lines show alternate flue locations For EXT 1500 2S 3000 2S Figure 4 use 32 81 28mm for vent flue at any side as needed and 24 60 96mm all others ...

Страница 7: ...es Piping Application Guide TAG 0096 AERCO International Inc 100 Oritani Dr Blauvelt NY 10913 Page 7 of 7 Phone 800 526 0288 10 06 2021 Figure 5 MODULEX EXT Boiler Top Clearances MLX 1500 2S 3000 2S MLX 450 2S 1100 2S ...

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