Weil-McLain LGB-4 User Manual
Part Number 550-141-918/0304
LG
LG
LG
LG
LGB
B
B
B
B
Refer to
LGB
LGB
LGB
LGB
LGB • Installation •
Start-Up • Service •
Start-Up • Service •
Parts Manual
for additional information
Control Supplement must only be used by a qualified installer/service
technician. Read all instructions before installing. Failure to follow all
instructions in proper order can cause severe personal injury, death or
substantial property damage.
technician. Read all instructions before installing. Failure to follow all
instructions in proper order can cause severe personal injury, death or
substantial property damage.
Contents
Installation ....................... 2
Gas piping ......................... 3
Wiring ............................... 4
Operating instructions ..... 6
Verification testing .......... 7
Parts ................................. 8
These terms are used throughout this
manual to bring attention to the presence
of hazards of various risk levels or to
important information concerning the life
of the product.
Gas–fired boiler
Control Supplement
Control Supplement
Control Supplement
Control Supplement
Control Supplement
LGB
LGB
LGB
LGB
LGB-4
-4
-4
-4
-4 & LGB
LGB
LGB
LGB
LGB-5
-5
-5
-5
-5
Series 2
– Natural gas
Universal Control System
Indicates presence of hazards that can cause severe personal injury, death or
substantial property damage.
substantial property damage.
Indicates special instructions on installation, operation or maintenance that
are important but not related to personal injury or property.
are important but not related to personal injury or property.