Benchmark 1.5ln dual-fuel low nox boiler, Gf-121 – AERCO BMK 1.5 LN Dual Fuel Feb 2013 User Manual

Page 55

CHAPTER 4: INITIAL START-UP

PR2: 05/09/12 Page

55 of 162

Benchmark 1.5LN Dual-Fuel Low NOx Boiler

Operation and Maintenance Manual

OMM-0041_0C

GF-121

AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288

in their entirety. When performing these steps, also ensure

that the carbon monoxide (CO) and nitrogen oxide (NOx)

readings do not exceed the values shown for each valve

position.

27. Press the ▲ arrow key until SET Valve Position appears on the C-MORE display.
28. Press the

CHANGE key. SET Valve Position will begin to flash.

29. Press the ▼ arrow key until the SET Valve Position reads 45% and press the

ENTER key.

30. Press the down ▼ arrow key until CAL Voltage 45% is displayed.
31. Press the

CHANGE key. CAL Voltage 45% will begin to flash.

32. The oxygen level at the 45% valve position should be as shown below. Also, ensure

that the carbon monoxide (CO) and nitrogen oxide (NOx) readings do not exceed the

values shown.

Combustion Oxygen Level at 45% Valve Position

Oxygen %

± 0.2

Carbon Monoxide

NOx

6.2 %

<100 ppm

<30 ppm

33. If the oxygen level is not within the specified range, adjust the level using the ▲ and

▼ arrow keys. This will adjust the output voltage to the blower motor as indicated on

the display. Pressing the ▲ arrow key increases the oxygen level and pressing the

▼ arrow key decreases the oxygen level.

34. Once the oxygen level is within the specified range at 45%, press the

ENTER key to

store the selected blower output voltage for the 45% valve position.

35. Press the ▲ arrow key until SET Valve Position appears on the C-MORE display.
36. Press the

CHANGE key. SET Valve Position will begin to flash.

37. Press the ▼ arrow key until the SET Valve Position reads 30%, then press the

ENTER key.

38. Press the ▼ arrow key until CAL Voltage 30% is displayed.
39. Press the

CHANGE key. CAL Voltage 30% will begin to flash.

40. The oxygen level at the 30% valve position should be as shown below. Also, ensure