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Modulex EXT
Brand: AERCOA breakthrough in high-efficiency design, AERCO’s condensing and fully modulating Modulex EXT boilers support 450 to 3000 MBH hydronic heating systems while delivering a greater degree of operating reliability for customer peace of mind.
To achieve the greatest possible fuel savings, each boiler combines independent thermal modules that operate to deliver superior turndown and a range of non-cycling operation not readily achieved by competitive equipment or controls.
The Modulex EXT comes standard with a powder coated enclosure enabling outdoor installations.
In addition to controlling the boiler according to a constant set point, indoor/outdoor reset or 0-10V signal, one or more units can be integrated via Modbus communications protocol to a facility-wide Energy Management or Building Automation System.
Combustion view ports and easy access to all operating components simplify minimal maintenance requirements.
In addition to minimizing redundant capacity needed for any project, these quiet and lightweight boilers can support Low NOx and low gas pressure applications as well as a variety of venting materials.
The Modulex EXT offers multiple supply/return piping and venting locations for installation flexibility and allows for multiple units to be easily co-located for greater than 3000 MBH applications.
Features- Condensing boiler
- Natural gas or propane
- Outdoor installation capable with no additional accessories or changes
- Superior reliability
- Small, doorway-size footprint
- Minimal maintenance
- Easy open access for serviceability
- Unmatched turndown - 10.5:1 to 39:1 Depending Upon Unit
- Whisper quiet operation <50 dBa
- Low NOx emission <20 ppm
- Direct or conventional vent with PVC, CPVC, Polypropylene or AL29-4C materials
- Common vent capability
- Flexible piping and venting connections
- Equipped with sealed combustion
- 0-10V output to control primary VFD pump
- Supports integration to BAS system
- Touchscreen controller with intuitive menu structure for easy setup and navigation
Specifications
Brand
Boiler Category
- IV
Gas Connections (NPT)
- 2”
Maximum Gas Pressure
- 10.5”
Minimum Gas Pressure
- 3.5”
Maximum Allowed Working Pressure
- 92 psi
Electrical Req: 120 V
- MLX EXT 450: 2.7 FLA
- MLX EXT 600: 3.6 FLA
- MLX EXT 800: 4.5 FLA
- MLX EXT 1100: 6.3
Water Connections (NPT)
- 2-1/2”
Minimum Water Flow at Minimum Fire (GPM)
- MLX EXT 450: 7
- MLX EXT 600: 9
- MLX EXT 800: 11
- MLX EXT 1100: 16
Minimum Water Flow at Full Fire (GPM)
- MLX EXT 450: 18
- MLX EXT 600: 24
- MLX EXT 800: 30
- MLX EXT 1100: 42
Maximum Water Flow (GPM)
- MLX EXT 450: 42
- MLX EXT 600: 56
- MLX EXT 800: 71
- MLX EXT 1100: 99
Water Pressure Drop at Maximum Flow (Ft. of Hd)
- MLX EXT 450: 9.5
- MLX EXT 600: 8.1
- MLX EXT 800: 7.9
- MLX EXT 1100: 8.3
Water Volume: Gallons
- MLX EXT 450: 3.8
- MLX EXT 600: 4.9
- MLX EXT 800: 5.9
- MLX EXT 1100: 8.0
Thermal Modules
- MLX EXT 450: 3
- MLX EXT 600: 4
- MLX EXT 800: 5
- MLX EXT 1100: 7
Turndown or Operating Range
- MLX EXT 450: 10.5:1
- MLX EXT 600: 14:1
- MLX EXT 800: 17.5:1
- MLX EXT 1100: 24.5:1
Vent & Air Inlet Size
- MLX EXT 450: 4”
- MLX EXT 600: 4” air intake, 6” exhaust
- MLX EXT 800: 6”
- MLX EXT 1100: 6”
Vent Materials (as per Local Code)
- Can support PVC, cPVC , Polypropylene or AL29-4C venting materials
Type of Gas
- Natural Gas or Propane
Temperature Control Range
- Units deliver 50°-180° F supply, Min. 35° F inlet water required
Maximum Noise Level
- All units deliver < 50 dBa when operating at or below full fire
Standard Listings and Approvals
- UL, ASME , CSD-1, Mass. Approval, SCAQMD
Water Quality
- PH operating range 6.5 to 8.0 and Glycol (if used) MUST be compatible Cast Aluminum heat exchangers