I. startup and operating adjustments – Fulton VMP Webster Oil_Combo Burner User Manual

Page 32

Page 32

Startup and Operating Adjustments

JB Manual

Pre-start Checkout

Linkage Adjustments

Fuel Cam Adjustments

FGR Adjustment

Burner Drawer Adjustments

Single Fuel Setups

Combination Gas and Pressure Atomized Oil

Combination Gas and Air Atomized #2 Oil

Combination Gas and Heavy Oil

10.

Gas Setup

11.

Pressure Atomized Oil Setup

12.

Air Atomized #2 Oil Setup

13.

Heavy Oil Setup

14.

Operating Control Adjustments

15.

Limit Tests

16.

Pilot Test

17.

Burner Shutdown

18.

Restart After Extended Shutdown

This section covers the startup and operating adjustments

of the Webster Models JB and JBX burners.

WARNING

BURNER STARTUP, COMBUSTION ADJUSTMENTS

AND LIMIT CONTROLS ADJUSTMENTS SHOULD

ONLY BE PERFORMED BY TRAINED AND EXPE-

RIENCED SERVICE TECHNICIANS. ATTEMPTING

TO PERFORM THESE FUNCTIONS WITHOUT THE

PROPER TRAINING AND EXPERIENCE CAN RE-

SULT IN EQUIPMENT DAMAGE, PERSONAL INJURY

OR DEATH.

Before proceeding with the startup and adjustment, be

sure that the overall installation is complete. Review the

boiler operating and installation manual, as well as all con-

trol manuals to verify that all equipment is ready for opera-

tion. These manuals must be read and understood prior

to starting the equipment.
If you are not qualiﬁed to service this equipment, DO NOT

TAMPER WITH THE UNIT OR CONTROLS - CALL YOUR

SERVICEMAN.

At the conclusion of the startup, document valve and

linkage positions, pressures and settings for future refer-

ence.

READ AND SAVE THESE INSTRUCTIONS FOR FU-

TURE REFERENCE.
1. Pre-Start Check List

Before starting the burner, a complete review of the instal-

lation, wiring and piping of the burner, boiler and all sup-

porting equipment must be complete and all of these items

must be ready for operation prior to starting. The following

is a general review:
______All wiring is connected. Test pulls on wire show

them to be tight.

______All fuel lines are connected and tight.

______Pilot gas is connected.

______Burner is mounted to vessel and ﬂoor, with all bolts

secured.

______The linkage is correct (in low ﬁre position) and

tight.

______The stack is connected and routed to the outside.

Draft controls are installed and operational.

______Gas vent lines are connected and routed to the

outside.

______Do not start the unit unless all cleanout doors are

in place and secured.

______The vessel is completely installed, ﬁlled with water

and operating controls checked.

______Support equipment is in place and ready (feed

pumps, draft controls, steam/hot water systems, boiler

limits and controls and feedwater systems).

______A load must be available for the burner startup and

adjustment process. The burner must be operated at high

rates for extended periods of time and the load must be

capable of using this energy.

______A combustion analyzer with O2 and CO (for gas)

must be available to tune combustion. A smoke spot tes-

ter must be available for oil ﬁring. If this is a low NOx

burner, a NOx analyzer must be available. All of these

analyzers must be recently calibrated and able to provide

accurate readings.

______Other test equipment, including manometers,

gauges and volt meter shall be available.

______Manometer or gauge on the gas manifold.

______Manometer or gauge before and after gas pres-

sure regulator.

______Draft gauge or manometer (at stack outlet).

______Draft gauge or manometer for furnace pressure.
2. Linkage Adjustments
Adjusting the air damper and FGR control valve on a link-

age system requires an understanding of linkage setups.

The rate of change for the fuel valve, air damper and FGR

valve must be matched by how the linkage is setup. If

the air damper or FGR valve opens too quickly, the ﬂame

may become unstable or the NOx levels may not meet

the requirements. There are a few general guidelines that

should be followed in setting up the linkage of a burner,

a. The linkage must provide the correct stroke of the

valve, from low to high ﬁre. Increasing the length of the

drive crank arm (B) or decreasing the length of the driven

crank arm (C) will increase the valve travel. To reduce

valve travel, decrease B or increase C (Figure I-1).

I. STARTUP AND OPERATING ADJUSTMENTS