Benchmark 2.0 Low NOx Boiler
OVERVIEW

Benchmark 2.0 Low NOx Boiler

Measuring only 79" high x 28" wide x 36" deep, the BMK2.0 LN fits easily through a standard size doorway and occupies a very small footprint. And it fits the most challenging projects as easily as it fits the smallest mechanical rooms.

The BMK2.0LN boiler supports sealed combustion, ceiling/sidewall venting and low gas pressure applications. Ideal in low flow applications, the unit operates with a small water side pressure drop.

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We've re-engineered our two-million BTU/hr. condensing boiler! Measuring just 79”H x 28”W x 36”D, the secret behind the unit’s compact size is an enhanced heat exchanger design. In addition, the BMK2.0LN now requires just 120V of electrical power and 4” gas pressure to operate.
20:1 Modulation Delivers Up to 99+% Efficiency
As a condensing boiler, the thermal efficiency of the BMK2.0LN increases when applied in a system that leverages cold return water temperatures. But it's the unit's unmatched 20:1 turndown that really maximizes operating efficiency and seasonal fuel savings. Comprehensive tests are being conducted to confirm the unit's efficiency over its entire 100,000 to 2 million BTU/hr. operating range. The initial boundary tests indicate that efficiency up to 99.3% can be achieved when the unit operates at its lowest firing rate (5% input) with 60°F inlet water temperature. Even at full fire (100% input) the BMK2.0LN delivers 85.3% efficiency.
Compact, Easy-to-Apply Design
Measuring only 79" high x 28" wide x 36" deep, the BMK2.0 LN fits easily through a standard size doorway and occupies a very small footprint. And it fits the most challenging projects as easily as it fits the smallest mechanical rooms. The BMK2.0LN boiler supports sealed combustion, ceiling/sidewall venting and low gas pressure applications. Ideal in low flow applications, the unit operates with a small water side pressure drop. From a controls standpoint, the unit's C-More control system can be integrated directly into a facility-wide Building Automation System via Modbus and is fully compatible with AERCO's Boiler Management System II (BMS II) for multiple unit installations.
<30 ppm NOx Capabilities
Certified by the South Coast Air Quality Management District (SCAQMD) and the Texas Commission on Environmental Quality (TCEQ) in its class, BMK2.0LN boiler is equipped with a low NOx burner and fuel delivery system that ensures emissions consistently measure <30 ppm of NOx corrected to 3% excess oxygen at all firing rates.
Standard Controls Package
The AERCO C-More™ Control Package supports constant set point, remote set point and/or outdoor reset schedule for individual boiler operation. Offers step-by-step diagnostic menus and status displays to help users set controls and check faults. More than 40 distinct messages, written in easy-to-understand language, convey subsystem status throughout the start-up sequence and during operation. The flash-upgradeable platform can be remotely monitored, controlled and upgraded via Modbus protocol using the RS-232 or RS-485 connection. The system provides failsafe and independent operation in the event of external building control system failures.
PRODUCT OPTIONS
IRI Gas Train - Incorporates two safety shut-off valves in a single valve body with normally open vent valve.
ACCESSORIES
Secondary Low Water Cut-Off (LWCO) - where required by building code. Secondary LWCO must be installed external to boiler.

AERCO BMS II - optional multiple unit controller recommended for installations of two or more boilers to maximize operating efficiency.

Communications Gateway - optional accessory supports boiler or BMS integration with BACnet, LonWorks and N2 systems.

AERClean Air FIlter - This system is for use on boilers drawing air directly from the boiler room; it prevents internal component damage by filtering particulates and airborne dust and debris from the combustion air intake.
 
Sentinal Products - Compatible with all materials found in a hydronic loop, these chemicals offer overall protection of a heating system from sludge, scale, corrosion, and freeze conditions.
 
Belimo F6... HDU Series 2-way butterfly valves - are designed to meet the needs of HVAC and commercial application requiring bubble tight shut-off for liquids.  Typical applications include boiler isolation, chiller isolation, cooling tower isolation, change-over systems, air handler coil control, bypass and process control applications.

AERCO Condensate Neutralizer Kit- is ideal for neutralizing condensate from condensing boilers and furnaces operating on natural gas or propane. 


Literature & Performance Data
File Type View Save File Type View Save
Benchmark Low NOx Family Brochure .pdf
Benchmark 2.0 Low NOx Tech Data Sheet .pdf
Efficiency Curves .doc
Low NOx Capabilities Curves .doc
Benchmark 2.0 Low NOx Tech Data Sheet (Metric) .pdf
Controls            
C-More Tech Data Sheet .pdf
Sizing & Application Guidelines
File Type View Save File Type View Save
Benchmark Application Guide (GF-2070) .pdf
Venting & Combustion Air Guide (GF-2050) .pdf
Electrical Power Wiring Guide (GF-2060) .pdf
Gas Components & Supply Design Guide (GF-2030) .pdf
Internal Wiring            
Modbus Wiring Guidelines (GF-2080) .pdf
Product & Component Drawings
File Type View Save File Type View Save
BMK2.0LN Bill of Materials (PL-A-158) .pdf
Dimensional Drawing .pdf .dwg
Pressure Relief Valve .pdf
Shell Side Pressure Drop .pdf
Secondary External Low Water Cut-Off (optional) .pdf
Condensate Trap Assembly (AP-A-814) .pdf .dwg
BMK2.0LN Detailed Drawing .dwg
Gas Trains            
Standard Natural Gas .pdf
Standard Natural Gas (MA only) .pdf
IRI Natural Gas .pdf
IRI Natural Gas (MA only) .pdf
Dual Fuel with FM .PDF
Dual Fuel with IRI (AP-A-843) .pdf
3D Models            
Revit Solid 3D Model BMK2.0 LN Natural Gas w/ FM Gas Train .rfa
Revit Solid 3D Model BMK2.0 LN Natural Gas w/ IRI Gas Train .rfa
Installation & Piping Drawings
File Type View Save File Type View Save
Anchor Bolt Location .pdf .dwg
Clearance for Standalone Unit Placement .pdf .dwg
Clearance for Side-by-Side Unit Placement .pdf .dwg
Single Unit Installation (SD-A-870) .pdf .dwg
Multi Unit Install (SD-A-868) .pdf .dwg
Multi ZeroSide Clearance Unit Install (SD-A-869) .pdf .dwg
Natural Gas Unit            
Combination Heating & DHW .pdf .dwg
Controls
File Type View Save File Type View Save
C-More Wiring Diagram - BAS to C-More (SD-A-659) .pdf .dwg
BMS System Header Sensor (included) .pdf
BMS Outdoor Air Sensor Kit (accessory) .pdf
Wiring
File Type View Save File Type View Save
Secondary External Low Water Cut-Off - Associated Wiring Diagram .pdf
Internal Wiring            
120V 1-Phase with FM Gas Train .pdf
120V 1-Phase with IRI Gas Train .pdf
Dual Fuel 120V 1-Phase with FM Gas Train .pdf
Dual Fual 120V 1-Phase with IRI Gas Train .pdf
Specifications
File Type View Save File Type View Save
Natural Gas Specifications .doc
CI Format Specifications - Nat. Gas .doc .pdf
CI Format Specifications - Dual Fuel .doc
Dual Fuel Specifications .doc
Certifications/Approvals
File Type View Save File Type View Save
AHRI & IBR Certificate of Performance .pdf
UL Approval Letter .pdf
GAMA Certification - IBR Rating .pdf
SCAQMD Approval Letter 2010 .pdf
MEA Number Letter .pdf
CSD-1 Compliance Letter .pdf
TCEQ Approval Letter .pdf
Standard Warranty
File Type View Save File Type View Save
Benchmark Warranty .pdf

Operation & Maintenance
File Type View Save File Type View Save
BMK2.0LN Natural Gas 2008 (GF-123) .pdf
BMK2.0LN Nat. Gas for Mass. only (GF-123-M) .pdf
BMK2.0LN Nat. Gas (GF-110LN) .pdf
BMK2.0LN for Mass. only (GF-110LN-M) .pdf
BMK2.0LN Nat. Gas June 2010 (GF-123) .pdf
BMK2.0LN Dual Fuel Nov 2010 (GF-127) .pdf
BMK2.0LN Natural Gas / Propane Mar 2011 (GF-123) .pdf
BMK2.0LN Dual Fuel Mar 2011 (GF-127) .pdf
BMK2.0LN Dual Fuel Apr 2011 (GF-127) .pdf
BMK2.0LN Natural Gas July 2011 (GF-123) .pdf
Instructions
File Type View Save File Type View Save
Modbus Communications Manual (GF-114) .pdf
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