Weil-McLain 80 User Manual

Part No. 550-141-935/0602
Boiler Manual
80
Water & steam boilers
for use with Gas, Light Oil, &
Gas/Light Oil – Fired Burners
This manual must only be used by a qualified heating installer/service
technician. Read all instructions before installing. Follow all instructions
in proper order. Failure to comply could result in severe personal injury,
death or substantial property damage.
• Consider piping and installation when determining boiler location.
• Any claims for damage or shortage in shipment must be filed immediately
against the transportation company by the consignee.
• This manual is for use only by your qualified heating installer/service
technician.
• Boiler and burner must be installed by a qualified service technician.
• We recommend regular service by a qualified service technician, at least
annually.
When calling or writing about the boiler— Please have the boiler model
number from the boiler rating label and the CP number from the boiler
jacket.
INSTALLER
USER

Weil-McLain 80 Specifications

General

Model	80
Category	Boiler
Fuel Type	Natural Gas / Propane
Sections	3
Input BTU	42, 000 - 299, 000

Summary

Boiler Manual Introduction and Safety

General Warnings and Installation Requirements

Essential safety warnings, installer qualifications, and general notices for boiler installation.

Hazard Definitions

Explains hazard symbols (DANGER, WARNING, CAUTION, NOTICE) used throughout the manual.

Boiler Installation Procedures

Before Installing Boiler

Covers code compliance, site selection, and foundation requirements.

Boiler Location and Clearances

Details site selection, foundation needs, and required clearances around the boiler.

Combustion and Ventilation Air

Requirements for providing adequate combustion and ventilation air openings.

Setting Boiler in Place

Procedures for positioning and leveling packaged boilers and block assemblies.

Assembling Boiler Block

Instructions for installing refractory material and preparing the back section.

Intermediate Section Assembly

Steps for installing intermediate sections and bottom refractory blanket.

Hydrostatic Pressure Test

Outlines steps and precautions for conducting the boiler pressure test.

Completing Block Assembly

Covers burner plate, observation ports, and cleanout plate installation.

Flue Collector Assembly and Installation

Steps for preparing and assembling the flue collector hood.

Flue Collector Mounting

Details on mounting the flue collector, including specific procedures for rear and top flue boilers.

Water Boiler Piping

Information on general piping, supply/return, and expansion tanks.

Steam Boiler Piping

Guidance for steam boiler piping, including Hartford loop and condensate return.

Jacket Installation

Instructions for fitting support brackets, rails, and front/rear jacket panels.

Jacket Side and Top Panel Installation

Procedures for installing jacket side panels, top panels, and trim.

Tankless Heater Piping

Procedures and recommendations for piping tankless water heaters.

Water Boiler Controls

Details on installing various water level and operating controls.

Steam Boiler Controls

Instructions for installing steam pressure, water level, and gauge glass controls.

Breeching and Venting Systems

Guidance on selecting and constructing metal breeching and venting systems.

Burner Installation

Steps for mounting the burner, ensuring a gas-tight seal, and wiring.

Wiring and Fuel Piping

Instructions for wiring boiler controls and installing fuel piping.

Final Adjustments

Procedures for filling, skimming, and adjusting burner/damper.

Boiler Specifications and Parts

Dimensions and Ratings

Provides detailed physical dimensions and performance specifications for boiler models.

Parts List

Lists all replacement parts with corresponding Weil-McLain part numbers and diagrams.

Safety and Warranty

Handling Ceramic Fiber and Fiberglass Materials

Safety precautions for handling insulation materials.

Propane Boiler Safety

Warnings specific to propane-fired boilers and gas odorant.

Limited Warranty Information

Details the warranty terms, coverage periods, and exclusions.