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IBC SL SERIES User Manual

IBC SL SERIES
121 pages
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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.

Table of Contents

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IBC SL SERIES Specifications

General IconGeneral
Fuel TypeNatural Gas or Propane
Heat Exchanger MaterialStainless Steel
Modulating BurnerYes
EfficiencyUp to 95%
Ignition TypeElectronic
VentingDirect Vent
Water ContentVaries by model
Vent Diameter3" or 4"
DimensionsVaries by model
WeightVaries by model

Summary

Safety Information

Manual Safety Markings

Explains the meaning of different safety symbols used in the manual, covering danger, warning, and caution.

Important Safety Instructions

Provides critical safety guidelines for installation, start-up, and servicing by qualified technicians.

Before Installation

Installation Precautions Checklist

Lists essential precautions and checks to review before commencing boiler installation.

Installation

Best Installation Conditions

Details factors to consider for optimal boiler placement and environment.

Gas Piping

Gas Pressure Requirements

Details minimum and maximum inlet gas supply pressure requirements.

Electrical Connections

About the Boiler Controller

Controller Overview and Features

Details the capabilities of the touchscreen controller, including pump control and diagnostics.

Before Operating the Boiler

Important Pre-ignition Checks

A checklist of critical checks to perform before the initial boiler startup.

Boiler Operation

Testing the Ignition Safety Shutoff

Procedure to test the ignition system's safety shutoff function.

Adjusting the Gas Valve

Guidance on measuring gas pressure and tuning the gas valve for optimal combustion.

Service and Maintenance

Contractor Maintenance Checklist

Tasks for qualified heating contractors during boiler servicing.

General Boiler Maintenance

Specific maintenance requirements for various boiler components like heat exchanger and pump.

Replacing Fan, Gas Valve, and Burner

Detailed procedures for replacing the fan, gas valve, and burner assembly.

Troubleshooting

Electronic Components Troubleshooting

Methods for diagnosing issues with electronic components like sensors and modules.

Troubleshooting Error Messages

Guidance on understanding and resolving common error codes displayed by the controller.

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