Benchmark 1.5 Low NoX Boiler
Now, even the smallest hydronic projects will be able to cost effectively leverage the fuel savings and operating reliability of a condensing, fully modulating boiler backed by a market-proven design.
Unmatched 20:1 Turndown with Low NOx Emissions
As a condensing boiler, the thermal efficiency of the BMK1.5LN 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.
 Click to enlarge From 75,000 BTU/hr. to its full fire input capacity of 1.5 million BTU/hr., the BMK1.5LN precisely matches fluctuating loads. This incredible range of operation minimizes boiler cycling and eliminates wasteful temperature overshoot. And the operating efficiency of the BMK1.5LN boiler actually increases as the load decreases. In simple terms, at its lowest firing rates (or BTU/hr. inputs), the unit's heat exchanger becomes greatly oversized in proportion to the load - allowing much greater thermal transfer to take place. The means that the BMK1.5LN saves the most energy during part load operations that characterize the majority of the heating season.
And the BMK1.5LN consistently delivers <30ppm NOx at all firing levels making it ideal for environmentally-friendly projects. The unit employs the same Low NOx burner design and proprietary fuel delivery system as the BMK2.0LN.
Compact, Easy-to-Apply Design
Measuring only 79" high x 28" wide x 36" deep, the BMK1.5 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 BMK1.5 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 and can withstand no flow conditions without damaging the heat exchanger.
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 (BMS) for multiple unit installations.
Performance-Proven Design
Best of all, the BMK1.5LN employs the same parts and technologies that have been performance proven over the past ten years as part of the Benchmark 2.0 boiler line
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