Benchmark Series
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BENCHMARK SERIES High-Efficiency Boilers

Leader in High Efficiency AERCO introduced condensing firetube designs to the commercial marketplace over 25 years ago, raising the standard in hydronic heating. While other companies have attempted to develop similar designs, only AERCO has decades of experience, making its condensing, fully modulating boilers the standard by which all others are measured. The Benchmark boiler family re-affirms AERCO’s leadership. Having the longest proven performance record of any condensing, modulating boiler, Benchmark delivers unparalleled cost savings, efficiency benefits, and design advantages. With...

The Greenspec® Listed Benchmark boilers are perfect for “green” designs. Their small footprint, flexible venting/piping options, high efficiency, and lower operating costs can help facilities earn LEED points. Benchmark has been designed with environmental advantages: O2 monitoring system – Benchmark units are available with AERCO’s proprietary O2 monitoring system, which displays the oxygen level directly on the C-More controller in real time. It can be monitored via Modbus, so customers can measure emission levels and fuel combustion efficiency to maximize fuel economy. Low NOx burner –...

Installation Advantages Vent Configurations Venting Versatility Benchmark products provides a number of venting options; Sidewall, throughthe-roof, and ducted combustion capabilities (direct-vent), approved for venting with PVC, CPVC, Polypropylene, or AL29-4C materials are all available and provide broad installation flexibility and savings. Space-saving Design All Benchmark products are delivered as a single, fully assembled unit. Its small footprint, doorway size, and quiet operation make it ideal for both new construction and retrofit applications. Our new Benchmark 6000 model is the...

BMK 750 – 15:1 Turndown Ratio (7%) BMK 1000 – 20:1 Turndown Ratio (5%) Oxygen Level (O2) Monitoring standard Stainless Steel Firetube Heat Exchanger Capable of variable primary flow installations NOx Emissions 20 ppm or less at all firing rates 9 ppm optional calibration Compact Footprint (25”D x 28”W x 78”H) High and Low Temperature System Return Connections* Ducted Combustion Capable Acceptable vent materials AL29-4C, Polypropylene, CPVC, and PVC Available in Natural Gas and Propane Fiber Mesh Ultra Low NOx Burner State-of-the-Art Air/Fuel Delivery System BMK 1500 – 20:1 Turndown Ratio...

Natural Gas 15:1 Turndown Ratio (7%) Oxygen Level (O2) Monitoring Stainless Steel Firetube Heat Exchanger Capable of variable primary flow installations NOx Emissions 20 ppm or less at all firing rates Compact Footprint (78”H x 28”W x 56”D) Ducted Combustion Capable Acceptable vent materials AL29-4C, Polypropylene Available in Natural Gas, Propane, and Duel Fuel State-of-the-Art Air/Fuel Delivery System Natural Gas 15:1 Turndown Ratio (7%) Oxygen Level (O2) Monitoring Stainless Steel Firetube Heat Exchanger Capable of variable primary flow installations NOx Emissions 20 ppm or less at all...

AERCO understands that every system design is different. To provide flexibility and meet any space configuration, venting options are available: • Security Chimneys International SS and SSD/SSID venting systems are made from AL29-4C® super-ferritic stainless steel. The single- and double-wall SS and SSD/SSID install effortlessly, are highly reliable and meet industry specifications. DuraVent PolyPro® polypropylene vent pipe is for ANSI Category II and IV gas-burning appliances. The PolyPro vent system is suitable for exhaust temperatures up to 230°F/110°C and a maximum positive pressure of...

AERCO Control System (ACS) The ACS is the best choice for maximizing heating plant efficiency if your heating plant has more than eight boilers or if your designing a combination control system as shown in the diagram on the next page. There is an ACS relay panel available to provide additional pump and valve control for several combination control configurations. Motorized Valves The 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,...

Sample Installation 1. Benchmark 3000 2. AERCO Control System (ACS) and ACS Relay Panel 3. Motorized Valves 4. Buffer Tank 5. SmartPlate 2.

Benchmark Specifications 750 50°F to 190°F 0°F to 130°F +/-4°F 750,000 BTUH (Natural Gas) 697,000 BTUH (Natural Gas) 15:1 6” Diameter PVC, CPVC, PP or AL29-4C 3” 150# Flange 1” NPT Male 14” WC Maximum, 4” WC Minimum at Full Load 12-175 GPM 3/4” NPT Female 6 GPH 160 PSIG at 210°F SCAQMD, TCEQ UL, CUL, ASME FM Compliant or Factory Installed, Double Block and Bleed (Formerly IRI) 1000 50°F to 190°F 0°F to 130°F +/-4°F 1,000,000 BTUH (Natural Gas) 930,000 BTUH (Natural Gas) 20:1 6” Diameter PVC, CPVC, PP or AL29-4C 3” 150# Flange 1” NPT Male 14” WC Maximum, 4” WC Minimum at Full Load 12-175 GPM...

2000 50°F to 190°F 0°F to 130°F +/-4°F 2,000,000 BTUH (Natural Gas) 1,820,000 BTUH (Natural Gas) 20:1 8” Diameter PP or AL29-4C 4” 150# Flange 2” NPT Male 14” WC Maximum, 4” WC Minimum at Full Load 25-350 GPM 1.5” Tube 10 GPH 160 PSIG at 210°F SCAQMD, TCEQ UL, CUL, ASME FM Compliant or Factory Installed, Double Block and Bleed (Formerly IRI) 120/1/60 20 AMP (16 AMP FLA) 3.4 psi 40 gallons 1,500 lbs. (dry), 1,760 lbs. (wet) 2500 50°F to 190°F 0°F to 130°F +/-4°F 2,500,000 BTUH (Natural Gas) 2,325,000 BTUH (Natural Gas) 15:1 8” Diameter PP or AL29-4C 4” 150# Flange 2” NPT Male 14” WC Maximum,...

A Watts Water Technologies Company SALES REPRESENTATIVES THROUGHOUT THE WORLD WATER HEATERS • BOILERS • ENERGY RECOVERY • PARTS AND ACCESSORIES AERCO INTERNATIONAL, INC. • BLAUVELT, NY 10913 www.aerco.com • e-mail: info@aerco.com