Fuel Types And Combustion Calibration - Watts Aerco Benchmark OMM-0116 Installation And Start-Up Manual

Benchmark 750-3000 Installation & Startup Manual
SECTION 4 – INITIAL START-UP
Analyzer Probe Port Access Instructions
ANALYZER PROBE
Figure 4-2a: BMK 750 & 1000 Analyzer Probe Port Location
DRAIN VALVE
ANALYZER PROBE
Figure 4-2b: BMK 1500 – 3000 Analyzer Probe Port Location

4.3 FUEL TYPES and COMBUSTION CALIBRATION

All BMK models may be preconfigured at the factory to use either natural gas or propane gas,
and BMK models between 1500 and 3000 are available in dual fuel versions, allowing the
installer/operator to switch between natural gas and propane gas onsite as needed.
Both fuel types require different combustion calibration values, and so care should be taken to
ensure the appropriate instructions are used for the fuel being used. Instructions for natural gas
are presented first, then for propane after.
Instructions for switching between fuel types in dual fuel models is presented in sections after all
combustion calibration instructions.
CAUTION!
Ensure the appropriate combustion calibration instructions are used for the fuel being used in
the boiler.
• •
OMM-115_D GF-200 5/9/2019
PORT
PORT
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
EXHAUST MANIFOLD
CONDENSATE DRAIN
CONDENSATE DRAIN
126
PRIMARY HOT
WATER INLET
PRIMARY HOT
WATER INLET
EXHAUST MANIFOLD
Page 61 of