Watts AERCO Benchmark BMK5000 User Manual

Benchmark with Edge [I]: Operation-Maintenance Manual
FORWARD
OMM-0145_D • GF-218 • 11/2/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 5 of 213
FOREWORD
The AERCO Benchmark (BMK) 750 through 6000 natural gas and propane fueled 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. These BMK models provide extremely high efficiency operation and
are ideally suited for modern low temperature, as well as, conventional heating systems.
IMPORTANT!
Unless otherwise specified:
• All descriptions in this document apply to the Benchmark Series of boiler.
• All measurements apply to both natural gas and propane models.
The Benchmark models operate within the input and output ranges listed below.
Benchmark Boiler Intake and Output Ranges
MODEL
INPUT RANGE (BTU/HR.)
OUTPUT RANGE (BTU/HR.)
MINIMUM
MAXIMUM
MINIMUM
MAXIMUM
BMK750
50,000 (14.6 kW)
750,000 (220 kW)
47,750 (14 kW)
716,250 (210 kW)
BMK1000
50,000 (14.6 kW)
1,000,000 (293 kW)
48,300 (14.15 kW)
968,000 (284 kW)
BMK1500
75,000 (22 kW)
1,500,000 (440 kW)
64,500 (18.9 kW)
1,395,000 (409 kW)
BMK2000
100,000 (29.3 kW)
2,000,000 (586 kW)
86,000 (25.2 kW)
1,860,000 (545 kW)
BMK2500
167,000 (48.9 kW)
2,500,000 (732 kW)
144,000 (42.2 kW)
2,395,000 (702 kW)
BMK3000
200,000 (58.6 kW)
3,000,000 (879 kW)
174,000 (51.0 kW)
2,874,000 (842 kW)
BMK4000
267,000 (78.2 kW)
4,000,000 (1172 kW)
232,000 (68.0 kW)
3,800,000 (1113 kW)
BMK5000N
250,000 (73.3 kW)
4,990,000 (1462 kW)
218,000 (63.9 kW)
4,740,000 (1389 kW)
BMK5000
400,000 (117 kW)
5,000,000 (1465 kW)
348,000 (102 kW)
4,750,000 (1392 kW)
BMK6000
400,000 (117 kW)
6,000,000 (1758 kW)
348,000 (102 kW)
5,700,000 (1670 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, the BMK750 – 2000
and 5000 & 6000 comply with the NOx emission standards outlined in: South Coast Air
Quality Management District (SCAQMD), Rule 1146.2. In addition, the BMK2500 – 6000
comply with the Bay Area Air Quality Management District regulation 9, Rule 7.
Whether used in singular or modular arrangements, the BMK 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:
• Room Combustion Air:
o Vertical Discharge
o Horizontal Discharge
• Ducted Combustion Air:
o Vertical Discharge
o Horizontal Discharge

Watts AERCO Benchmark BMK5000 Specifications

General

Brand	Watts
Model	AERCO Benchmark BMK5000
Category	Boiler
Language	English