Weil-McLain WJB2 user manual

Summary of the content on the page No. 1

®
88
Water & Steam Boilers – Series 2
Flame retention burners for
Gas, Light Oil, & Gas/Light Oil firing
Webster
Burner Specification
Models WJB1 & WJB2
& Data Sheet
Models WJB1 & WJB2 Gas/light oil burner
Gas burner
W
L
E
C
A
B
D
H
Part Number 550-142-022/0509

Summary of the content on the page No. 2

Webster – Model WJB Standard Burner Model Standard Combustion Standard Control Burner Motor Boiler Burner Input Positive Designation Control System 3450 RPM H.P. Model Pressure in Standard Number No. 2 Gas/ Gas/ Firebox Voltage Gas Light Gas/ Light Gas/ Light Gas Light 88 Oil Gas Gas Gas Light Light In. W.C. MBH Oil Light Oil Oil Light Oil Oil H.P. Oil Series 2 GPH Oil Oil 488R 6.9 996 0.68 WJB1G-03 WJB1O-03 WJB1C-03 RM7897A R7184A RM7897C A A A 1/3 1/3 1/3 See notes 488 7.0 1010 0.70 WJ

Summary of the content on the page No. 3

Burner Specification and Data Sheet 7. Gas Control Systems: A (OO): On-off operation, low fire start, high fire run. Single-position air, adjustable opening gas valve. L (LFS): On-off operation, low fire start, high fire run. Two-position air controlled by damper arm on motorized gas valve. H (LHL): Low-high-low-off firing conditions. Two-position air controlled by damper arm on motorized gas valve. M (MOD): On-off operation, with proven low fire start and full modulating firin

Summary of the content on the page No. 4

Webster – Model WJB Notes e) RM7800L, E110/EP170 flame safeguard control monitors the oil or gas burner flame with digital readout control system, provides pre- purge and post-purge programming, provides switching necessary to allow firing rate motor to be driven to both low fire and high fire posi- tion, prevents start-up if pre-ignition interlocks are open and has low fire start proving circuit. In the event pre-ignition interlock circuit or running interlock circuit does not “prove”, syst