Benchmark 1500 - 2000 Boilers
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OMM-0097_0E AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 7 of 182
GF-142 Ph.: 800-526-0288 10/01/2015
FOREWORD
The AERCO Benchmark (BMK) 1500 MBH (440 kW) and 2000 MBH (586 kW) boilers are
modulating and condensing units. They represent a true industry advance that meets the needs
of today's energy and environmental concerns. Designed for application in any closed loop
hydronic system, the Benchmark's modulating capability relates energy input directly to
fluctuating system loads. The turn down ratios for these boilers is 20:1. These BMK models
provide extremely high efficiency operation and are ideally suited for modern low temperature,
as well as, conventional heating systems.
The Benchmark Model BMK 1500 and BMK 2000 boilers operate within the following input and
output ranges:
Benchmark
Model
Input Range (BTU/hr.) Output Range (BTU/hr.)
BMK 1500 75,000 (22 kW) 1,500,000 (440 kW) 64,500 (18.9 kW) 1,395,000 (409 kW)
BMK 2000 100,000 (29.3 kW) 2,000,000 (586 kW) 86,000 (25.2 kW) 1,860,000 (545 kW)
The output of the boiler is a function of the unit’s firing rate (valve position) and return water
temperature.
When installed and operated in accordance with this Instruction Manual, these boilers comply
with the NOx emission standards outlined in:
South Coast Air Quality Management District (SCAQMD), Rule 1146.2
Whether used in singular or modular arrangements, the BMK 1500 and BMK 2000 boilers offer
the maximum venting flexibility with minimum installation space requirements. These boilers are
Category II and IV, positive pressure appliances. Single and/or multiple breeched units are
capable of operation in the following vent configurations:
Conventional, Vertical
Conventional, Sidewall
Conventional, Direct Vent, Vertical
Sealed, Direct Vent, Horizontal
These boilers are capable of being vented utilizing Polypropylene and AL29-4C vent systems.
The Benchmark's advanced electronics are available in several selectable modes of operation
offering the most efficient operating methods and energy management system integration.
IMPORTANT
Unless otherwise specified, all descriptions and procedures provided in this
Installation, Operation & Maintenance Manual apply to the Benchmark
series of boiler.
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