Weil-McLain Condensing Gas Boiler 110/155 User Manual

User manual for Weil-McLain condensing gas boiler model 110/155, covering safety, installation, maintenance, and operation.


Weil-McLain Condensing Gas Boiler 110/155 User Manual - cover page
Brand
Weil-McLain
Document type
User Manual
Language
English
Pages
12
File format
PDF
File size
1.9 MB
Published
06 November, 2026
Updated
06 November, 2026
MD5 checksum
1A0C3791C1138B57D951BB4733CD8F5F

About this manual

This manual provides safety warnings and operational guidelines for the Weil-McLain condensing gas boiler model 110/155. It includes critical safety instructions, such as handling gas leaks, preventing air contamination, and proper maintenance procedures. The manual also outlines annual startup requirements and maintenance schedules for daily, monthly, and semi-annual inspections to ensure safe and reliable operation.

Installation and service must be performed by a qualified technician. The document emphasizes hazards like fire, explosion, and electrical shock, and provides specific precautions for water, saltwater, and chemical contamination. It also includes guidance on using appropriate antifreeze and avoiding combustion air contamination from household products.

What's inside

  • Safety Warnings
  • Installation & Service
  • Boiler Components
  • Hazard Definitions
  • Annual Startup
  • Maintenance Schedule
  • Combustion Air Contamination
  • Freeze Protection Fluids
  • Water and Chemical Contamination
  • Control Display and Buttons

Frequently asked questions

What should I do if I smell gas?

Do not try to light any appliance. Do not touch any electrical switch; do not use any telephone in your building. Immediately call your gas supplier from a neighbor’s telephone. Follow the gas supplier’s instructions. If you cannot reach your gas supplier, call the fire department.

Who should install and service this boiler?

Installation & service must be performed by a qualified installer, service technician or the gas supplier.

How often should I have the boiler serviced?

Have this boiler serviced/inspected by a qualified service technician, at least annually.

What should I do if the boiler is contaminated with saltwater?

Weil-McLain equipment contaminated with saltwater or polluted water will no longer be covered under warranty and should be replaced.

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