Site Preparation; Installation Clearances - Watts Aerco BENCHMARK 750 User Manual

Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL

2.4 SITE PREPARATION

Ensure that the site selected for installation of the Benchmark 750/1000 Heating Boiler includes:
• Access to AC Input Power at 220 VAC, Single-Phase, 50 Hz @ 15 Amps
• Access to a Natural Gas line with a minimum pressure of 4 inches W.C. (1.00 kPa)
with the unit operating at maximum capacity.

2.4.1 Installation Clearances

The Benchmark Model 750 and 1000 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 (61 cm)
• Front: 24 inches (61 cm)
• Rear: 24 inches (61 cm)
• Top:
18 inches (45.7 cm)
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.
Housekeeping pad should not extend under the condensate assembly
Figure 2-1a: Benchmark Heating Boiler Model 750/1000 Clearances
Page 14 of 170
11/03/2016
CHAPTER 2 – INSTALLATION
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
OMM-0119_0A
GF-130-I