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2.4 SITE PREPARATION
Ensure that the site selected for installation of the Benchmark 1500/2000 Boiler includes:
• Access to AC Input Power at 120 VAC, Single-Phase, 60 Hz @ 20 Amps
• Access to Natural Gas line at a minimum pressure of 8 inches W.C. at gas flow for
1,500,000 BTU/hr energy input for the BMK 1500 OR 2,000,000 BTU/hr energy input for
the BMK 2000.
2.4.1 Installation Clearances
The Benchmark Model 1500 and 2000 are packaged in an enclosure having identical exterior
dimensions. The unit must be installed with the prescribed clearances for service as shown in
Figure 2-1a. The minimum clearance dimensions, required by AERCO, are listed below.
However, if Local Building Codes require additional clearances, these codes shall supersede
AERCO's requirements. Minimum acceptable clearances required are as follows:
• Sides: 24 inches
• Front : 24 inches
• Rear: 24 inches
• Top:
18 inches
All gas piping, water piping and electrical conduit or cable must be arranged so that they do not
interfere with the removal of any panels, or inhibit service or maintenance of the unit.
NOTE
Ensure that
condensate
assembly is not
located over the
housekeeping
pad.
Figure 2-1a: Benchmark Boiler Model 1500/2000 Clearances
Page 16 of 184
Benchmark 1500 - 2000 Boilers
CHAPTER 2 – INSTALLATION
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
OMM-0097_0C
GF-142
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