IBC SL 26-260 G3

INSTALLATION &
OPERATING MANUAL
Commercial Condensing Boiler
SL 26-260 G3
SL 40-399 G3
WARNING
If the information in this manual is not followed exactly, a fire or explosion may result causing
property damage, personal injury, or loss of life.
Do not store or use gasoline or other flammable vapors and liquids or other combustible
materials in the vicinity of this or any other appliance.
If you smell gas:
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from a nearby phone. Follow the gas supplier’s
instructions.
If you cannot reach your gas supplier, call the fire department. Installation and service must
be performed by a qualified installer, service agency or the gas supplier.

IBC SL 26-260 G3 Specifications

General

Model	SL 26-260 G3
Efficiency	95% AFUE
Fuel Type	Natural Gas or Propane
Type	Gas-fired condensing boiler
Heating Capacity	260, 000 BTU/hr
Dimensions (H x W x D)	24 x 24 inches
Warranty	10 years heat exchanger, 5 years parts

Summary

Safety Information

Warnings and Precautions

Crucial warnings regarding fire, explosion, gas leaks, and essential immediate action steps.

Manual Safety Markings

Explains the meaning of Danger, Warning, Caution, and Note symbols used in the manual.

Important Safety Instructions

Highlights critical safety protocols for installation, servicing, and general operation.

Specifications

Installation

Code Requirements

Specifies compliance with Canadian and US national and local codes for boiler installation.

Exhaust Venting and Air Intake

Covers requirements for exhaust venting, air intake, and termination options for safe and efficient operation.

Water Piping

Details water quality requirements, head loss tables, and system piping best practices for optimal performance.

Electrical Connections

Gas Piping

About the Boiler Controller

Before Operating the Boiler

Pre-ignition Checks

Boiler Operation

Service and Maintenance

Troubleshooting

Electronic Components

Error Messages

Lists common error messages displayed on the controller, with diagnoses and fixes.

Ignition Issues