Instruction Manual

Benchmark 750/1000 Boiler Installation, Operation & Maintenance Manual
CHAPTER 2 – INSTALLATION
Page 16 of 192 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0082_0J
05/21/2014 Ph.: 800-526-0288 GF-130
2.4 SITE PREPARATION
Ensure that the site selected for installation of the Benchmark Boiler includes:
• Access to AC Input Power at 120 VAC, Single-Phase, 60 Hz @ 20 Amps.
• Access to one of the following with the unit operating at maximum capacity:
o For Benchmark 750 & 1000, a NATURAL GAS line at a minimum pressure of 4” W.C.
o For Benchmark 750, a PROPANE gas line at a minimum pressure of 7” W.C.
o For Benchmark 1000, a PROPANE gas line at a minimum pressure of 11” W.C.
2.4.1 Installation Clearances
Benchmark Models 750 and 1000 are packaged in enclosures 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.
Figure 2-1a: BMK 750 & 1000 Clearances
Housekeeping pad should not extend under the condensate assembly