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.
LG
LG B B B B B
LG
LG
LG
Control Supplement
Control Supplement
Control Supplement
Control Supplement
Control Supplement
LGB-4
LGB
LGB
-4
-4 & LGB
-4
LGB
LGB
LGB-5
LGB
LGB
-4
LGB
Universal Control System
Indicates presence of hazards that can cause severe personal injury, death or
substantial property damage.
Indicates special instructions on installation, operation or maintenance that
are important but not related to personal injury or property.
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.
Gas-fired boiler
-5
-5
-5
-5
- Natural gas
Series 2
Contents
Wiring ............................... 4
Parts ................................. 8
for additional information
Part Number 550-141-918/0304
Refer to
LGB • Installation •
LGB
LGB
LGB
LGB
Start-Up • Service •
Parts Manual