Owner manual

APPENDIX K: BMK 2.0 DUAL-FUEL SWITCHOVER INSTRUCTIONS
PR2: 04/22/13 Page 155 of 160
Benchmark 2.0LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0052_0E
GF-127
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
Figure K-2: Ball Valve Positions for PROPANE Gas Operation
Figure K-3: Ball Valve Positions for NATURAL GAS Gas Operation
TO AIR/FUEL
VALVE
CLOSE
NATURAL
GAS BALL
VALVE
OPEN
PROPANE
GAS BALL VALVE
NATURAL GAS
INLET
PROPANE
INLET
TO AIR/FUEL
VALVE
OPEN
NATURAL
GAS BALL
VALVE
CLOSE
PROPANE
GAS BALL VALVE
NATURAL GAS
INLET
PROPANE
INLET