Benchmark Platinum 1500 and 2000

The Benchmark® Platinum is AERCO’s most advanced commercial condensing boiler yet featuring a powerful bundle of innovative technology and components that optimize your premium system and maximize efficiencies by up to an additional 9% including:

  • AERtrim: patented O2 Trim technology
  • Dual Returns: enables maximum efficiency and application flexibility
  • onAER Remote Monitoring: pro-active performance and health-of-system monitoring
  • Industry-Best Warranty

Incorporating AERCO’s highly reliable, stainless steel fire-tube heat exchanger, the Benchmark Platinum’s 1500 and 2000 provide engineers, facilities management, and building owners with the flexibility to fit in both retrofit and new construction that require one or multiple 1500 or two million BTU/hr boilers. 

Features and Benefits

  • AERtrim patented O2 Trim technology (standard)
  • Dual Return water connections (standard)
  • Natural gas, propane, or dual fuel (model dependent)
  • 20:1 turndown ratio (5%)*
  • Stainless steel fire tube heat exchanger
  • Capable of variable primary flow Installations
  • NOx emissions capable of 9PPM or less @ all firing rates*
  • Compact footprint
  • Precise temperature control
  • On-board Boiler Sequencing Technology (BST)
  • Ducted combustion air capable
  • Easy open access for service
  • Acceptable vent materials AL29-4C, Polypropylene, PVC, cPVC (model dependent)
  • Reliable quiet operation
  • Controls options:
    • Constant setpoint
    • Indoor/outdoor reset
    • Remote setpoint
    • 4-20mA signal or ModBus

*depending on capacity

Advanced combustion control systems in high efficiency boilers need to maintain precise air/fuel ratios in order to work properly and maximize efficiency. However, environmental variations (such as humidity, atmospheric pressure, filter dust loading, delivered gas energy content and other factors) can often wreak havoc on gas boilers causing them to deviate from the ideal oxygen-fuel ratio.

AERCO’s innovative, patented AERtrim monitors the actual conditions of the Benchmark Platinum and self-adjusts its combustion process to ensure your system is operating at optimal O2 levels and peak system efficiency. With proper O2 levels, you’ll have greater uptime reliability, save money with increased efficiencies, produce lower emissions, and create the ideal environment for condensing to occur. You’ll also lowers operating and maintenance costs and receive an additional 1-2% in seasonal efficiency gain. Oxygen levels can be directly displayed on the unit in real time or be remotely moni­tored via Modbus or onAER, giving customers the ability to measure the emissions level and fuel economy of the boiler without traditional combustion calibration devices.

Dual Returns 
With Benchmark Platinum’s Dual Returns, AERCO enables you to take full advantage of your premium Benchmark boiler by helping you design the most efficient system possible.

Most traditional boilers only have Single Returns which limit engineers to designing generic applications that force the blending of hot and cold water temperatures, which create a small Condensing Zone in the Heat Exchanger thereby reducing efficiencies. However, Benchmark Platinum’s Dual Returns allow engineers to take full advantage of diverse load demands specific to a site and design a customized system that maximizes operation efficiencies by keeping cold water separate creating a much larger Condensing Zone thereby enhancing boiler efficiency up to an additional 7%.

Dual Returns are ideal for applications that feature combination systems including, but not limited to Multi-zone space heating, space heating with domestic hot water combination systems, radiant floor heating, pool heating, snow melt, and supplementary heat for heat pump systems.

Industry-Best Warranty
In addition to all the advanced features of the Benchmark Platinum, AERCO also provides the best warranty in the industry:

  • 15-Year Heat Exchanger - Thermal Shock, Condensate Corrosion, Manufacturing Defect
  • Five-Year Burner
  • Three-Year C-More Controller
  • Two-Year Parts Warranty

onAER Remote Monitoring
Benchmark Platinum boilers come onAER Remote Monitoring ready and with a 5-year subscription of onAER standard. AERCO’s onAER service is a premiere online service which grants the user remote access to view boiler plant operation and status, track performance and efficiency, and set and view alerts such as faults or maintenance. The onAER service can be set to provide alerts to local trained technicians, offering additional peace of mind, ensuring the utmost uptime reliability and helping you prevent unnecessary wear-and-tear of your equipment as well as premature failure.

Unmatched Modulation and Efficiency
The AERCO Benchmark Platinum (BMK) Water Boiler is designed for condensing application in any closed loop hydronic system. It delivers unmatched burner modulation to match energy input directly to fluctuat­ing system loads to yield the highest possible seasonal efficiencies. And no other product packs as much capacity into such a small footprint.

Low Emissions
To minimize emissions, the Bechmark Platinum series is fitted with a low NOx burner whose emissions will meet the most stringent NOx and CO requirements. The fully modulating burner also maintains AERCO standards for energy efficiency, longevity, reliability and construction quality.

Compact, Easy-to-Apply Design
Measuring only 79" high x 28" wide x 25" deep, the Benchmark Platinum 1500 and 2000 fits easily through a standard size doorway and occupies a very small footprint fitting the most challenging projects as easily as the smallest mechanical rooms. The Benchmark Platinum boilers can be used as an individual unit or in modular ar­rangements and offers selectable modes of operation. In addition to controlling the boiler according to a constant set point, indoor/outdoor reset schedule or 4-20mA signal, one or more units can be integrated via Modbus communications protocol. For boiler plants ranging from 2-8 boilers, AERCO’S built-in Boiler Sequencing Technology (BST) can be utilized. For heating plants greater than 8 boilers, AERCO’s ACS (AERCO Control System) provides the right solution. Likewise, Benchmark sys­tems can be easily integrated with a facility-wide Energy Management or Building Automation System. 

Options and Accessories

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 you are designing a combination control system. 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, chiller isolation, cooling tower isolation, change-over systems, air handler coil control, bypass and process control applications. Valves specifically designed for easy installation on BST configured boiler plants are available as well.

Boiler Sequencing Technology (BST) Integration Panel
BST boiler plants have this option available to enable the BST Master to automatically switch a C-More Slave to the BST Master control if the currently designated master is not able to manage the boilers in the plant. The change is automatic so there is no need for a technician to intervene. The C-More may change from a slave to a master if a unit is taken down for service or if there is a fault that disables the C-More currently acting as the BST Master. The panel is the connection point for the Modbus sensors used by the BST Master Control. This allows the signal input of any sensors attached to the Integration Panel to be accessed at any node on the BST communication cables.

AERCO Protonode/Gateways
AERCO offers a multi-protocol, communications gateway to support integration with customers’ building control and energy management systems. The plug-n-play package supports integration with BACnet/IP, BACnet MS/TP, LonWorks, and Johnson Controls Metasys N2 systems. AERCO’s Communications Gateway is available for all AERCO boilers, water heaters and electronically controlled indirect systems.

Condensate Neutralizer Kit
AERCO Condensate Neutralizers are ideal for neutralizing condensate from condensing boilers and furnaces operating on natural gas or propane. The condensate is acidic and has the potential to harm the environment and the sewer system. The AERCO Condensate Neutralizer will raise the pH of the condensate to a more neutral level before it is discharged to drain.

Buffer Tanks
AERCO buffer tanks are ASME certified pressure vessels designed for use with high efficiency, low volume systems that incorporate low-mass condensing boilers. They add thermal mass, dampen fast transitions and minimize boiler cycling that occurs during zero or low domestic load conditions. The AERCO buffer tanks are available in two and four-port (Primary-Secondary) configurations.

Venting Mufflers
AERCO offers 6”, 8”, and 14” exhaust mufflers that are specifically designed with flanged ends to fit directly on the exhaust manifold of Benchmark® Platinum boilers. The flanged-end design allows the muffler to be used with any venting system manufacturer – the only adapter required is an AERCO starter piece at one or both ends of the muffler.

Technical Documents

Installation and Piping Drawings

BMK 1500, BMK 2000 Clearance Drawing-Single (SD-A-995)

dwg 540.36 KB | February 17, 2017

BMK 1500, BMK 2000 Clearance Drawing-Single (SD-A-995)

pdf 70.47 KB | February 17, 2017

BMK 1500-2000 Zero Side Clearance Drawing (SD-A-996)

dwg 701.97 KB | February 17, 2017

BMK 1500-2000 Zero Side Clearance Drawing (SD-A-996)

pdf 85.38 KB | February 17, 2017

BMK Platinum 1500-3000 Multi Unit Installation w/ Dual Return (SD-A-1089)

dwg 1.91 MB | February 17, 2017

BMK Platinum 1500-3000 Multi Unit Installation w/ Dual Return (SD-A-1089)

pdf 193.47 KB | February 17, 2017


dwg 3.72 MB | March 15, 2017


pdf 367.57 KB | March 15, 2017

Literature and Performance Data

AERCO AERtrim Technical Data Sheet

pdf 588.86 KB | April 20, 2017

AERCO Benchmark Platinum Brochure

pdf 9.5 MB | March 29, 2017

AERCO BST Technical Data Sheet

pdf 113.75 KB | February 17, 2017

AERCO C-More Technical Data Sheet

pdf 460.42 KB | September 2, 2016

Benchmark Platinum 750-6000 Tech Data

pdf 356.12 KB | March 23, 2017

BMK 2000 Efficiency Curves

pdf 13.87 KB | December 14, 2015

BMK1500 Efficiency Curves

pdf 13.87 KB | December 14, 2015

Integration Panel for BMK BST Technical Data Sheet

pdf 339.33 KB | September 6, 2016

onAER Remote Monitoring Sell Sheet

pdf 1.22 MB | February 17, 2017

Operation and Maintenance Manuals (O&M)

Benchmark Platinum 750-3000 User Manual Installation and Startup Guide (OMM-0115) (GF-200)

pdf 5.87 MB | May 2, 2017

Benchmark Platinum 750-3000 User Manual Operation, Service and Maintenance Guide (OMM-0116) (GF-201)

pdf 13.82 MB | May 2, 2017

Product and Component Drawings

Benchmark 1500, 2000 Dual Inlet Dimensional Drawing (AP-A-1036)

dwg 5.23 MB | March 21, 2017

Benchmark 1500, 2000 Dual Inlet Dimensional Drawing (AP-A-1036)

pdf 177.71 KB | March 21, 2017

Benchmark Platinum Drawing 750-6000

rfa 576 KB | February 17, 2017

Sizing and Application Guidelines

Benchmark All Models Boiler Application Guide (TAG-0019) (GF-2070)

pdf 4.74 MB | February 17, 2017

Benchmark Venting & Combustion Air Guide (GF-2050) (TAG-0022)

pdf 2.1 MB | January 26, 2017

Electrical Power Wiring Guide (GF-2060)

pdf 583.68 KB | December 14, 2015

Gas Components & Supply Design Guide (GF-2030, TAG-0047)

pdf 656.12 KB | January 26, 2017

onAER Remote Monitoring Setup Guide

pdf 279.71 KB | February 17, 2017


BMK Platinum Specification

doc 133 KB | March 23, 2017


Benchmark Platinum Limited Warranty_11-01-2016

pdf 86.28 KB | February 17, 2017


BMK 750-6000 Internal IO Box Wiring Diagram (SD-A-903)

dwg 201.67 KB | June 9, 2017

BMK 750-6000 Internal IO Box Wiring Diagram (SD-A-903)

pdf 53.23 KB | June 9, 2017

C-More Onboard Boiler Sequencing Tech Field Wiring Diagram 24VAC (SD-A-1010)

dwg 292.36 KB | February 17, 2017

C-More Onboard Boiler Sequencing Tech Field Wiring Diagram 24VAC (SD-A-1010)

pdf 151.98 KB | February 17, 2017

C-More Onboard Boiler Sequencing Tech Field Wiring Diagram 24VAC with Modbus Device (SD-A-1012)

dwg 201.04 KB | February 17, 2017

C-More Onboard Boiler Sequencing Tech Field Wiring Diagram 24VAC with Modbus Device (SD-A-1012)

pdf 145.5 KB | February 17, 2017

C-More Onboard Boiler Sequencing Tech with ProtoNode and BAS Field Wiring Diagram 24VAC (SD-A-1011)

dwg 392.12 KB | February 17, 2017

C-More Onboard Boiler Sequencing Tech with ProtoNode and BAS Field Wiring Diagram 24VAC (SD-A-1011)

pdf 184.93 KB | February 17, 2017

C-More Onboard Boiler Sequencing Tech with ProtoNode and BAS Field Wiring Diagram 24VAC Modbus Device (SD-A-1013)

dwg 288.29 KB | February 17, 2017

C-More Onboard Boiler Sequencing Tech with ProtoNode and BAS Field Wiring Diagram 24VAC Modbus Device (SD-A-1013)

pdf 194.24 KB | February 17, 2017