Gas Supply Specifications; Manual Gas Shutoff Valve - Watts Aerco Benchmark OMM-0116 Installation And Start-Up Manual

Benchmark 750-3000 Installation & Startup Manual
SECTION 2 – INSTALLATION

2.9.1 Gas Supply Specifications

The gas supply input specifications to the unit are as follows:
The maximum static pressure to the unit must not exceed the following:
TABLE 2-1: Maximum Static Gas Pressure
Model
BMK 750 - BMK 3000
Supply piping and pressure to the unit must be sufficient to provide the volume of gas while
maintaining gas pressure listed below while operating at maximum capacity:
TABLE 2-2: Minimum Gas Pressure Requirements
Model
BMK 750
BMK 1000
BMK 1500
BMK 2000
BMK 2500
BMK 3000

2.9.2 Manual Gas Shutoff Valve

A manual shut-off valve must be installed in the gas supply line upstream of the boiler as shown
in Figure 1-1.
• •
OMM-115_D GF-200 5/9/2019
Natural gas
14" W.C. (3.49 kPa)
Natural gas
4" W.C. (1.0 kPa)
4" W.C. (1.0 kPa)
4" W.C. (1.0 kPa)
4" W.C. (1.0 kPa)
4" W.C. (1.0 kPa)
4" W.C. (1.0 kPa)
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
126
Propane
14" W.C. (3.49 kPa)
Propane
7" W.C. (1.74 kPa)
11" W.C. (2.74 kPa)
4" W.C. (1.0 kPa)
4" W.C. (1.0 kPa)
4" W.C. (1.0 kPa)
4" W.C. (1.0 kPa)
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