Part Number 550-143-015/1221
Read the boiler rating label
to determine the size and
series number.
Series 2
80/110/150/199
Wall Mount Gas-Fired
Condensing Boilers – Combi and Heating Only Models
Multi-Boiler Wiring Kit Instructions
(RS-485 Communication)
Recommended tools
Phillips screwdriver
Flat blade screwdriver
Paper/pen
Boiler manual
P/N 383-700-272 Kit Contents:
Description
Part No. Qty
Wiring Harness, RS-485 Communication
591392107 1
Vinyl Grommet
562248771 1
1/2" Sheet Metal Screw
562138550 2
1 1/2" Sheet Metal Screw
562137536 4
Communication Board
511330460 1
Junction Box Top
469040072 1
Junction Box Bottom
469040071 1
Plastic Anchor
563210627 4
STOP!
Read before proceeding
Hazard definitions
The following defined terms are used throughout
this instruction to bring attention to the presence
of hazards of various risk levels or to important
information concerning the life of the product.
Indicates presence of hazards that will
cause severe personal injury, death or
substantial property damage.
Indicates presence of hazards that can
cause severe personal injury, death or
substantial property damage.
Indicates presence of hazards that will
or can cause minor personal injury or
property damage.
Indicates special instructions on
installation, operation or maintenance
that are important but not related to
personal injury or property damage
.
These instructions must only be
used by a qualified installer/service
technician
. Read all Instructions com-
pletely before beginning the installation.
Failure to follow all instructions can cause
severe personal injury, death or substantial
property damage.
Improper installation, adjustment,
alteration, service or maintenance can
cause property damage, personal injury
(exposure to hazardous materials) or
loss of life. Refer to the user’s informa-
tion manual provided with this boiler or
available on-line at Weil-McLain.com.
Installation and service must be per-
formed by a qualified installer, service
agency or the gas supplier (who must
read and follow the supplied instruc-
tions before installing, servicing, or re-
moving this boiler. This boiler contains
ceramic fiber and fiberglass materials
that have been identified as carcinogen-
ic, or possibly carcinogenic, to humans).
