IBC SL G3 Series User Manual

Commissioning supplement for SL G3 series boilers
with side piping
The information provided here covers the commissioning process of the SL 10-85 G3, SL 14-115 G3, SL 20-
160 G3, SL 30-199 G3 boilers. It is intended as a supplement to the official information provided in the
Commissioning 3.0 section of the Installation and Operating Instructions manual.
Equipment needed for commissioning
•
SL Installation and Operating Instructions manual
• #15 Torx screwdriver
• Small adjustable wrench or 1/2" (13mm) wrench • Digital combustion analyzer
• Pocket screwdriver • Manometer
Before you start the commissioning process
1. Review the Commissioning section in the SL Installation and Operating Instructions manual.
2. Prepare your combustion analyzer:
3. a. Clear your combustion analyzer outside in a clean environment, and check that the O
2
is at
20.9% and CO is at 0.
b. Enter the boiler room with the analyzer operating, and verify that the values remain the same or
within safe working limits.
c. Loosen the vent stack bolt to enable easy access to the combustion analyzer’s wand.
4. Become familiar with the gas valve. You may notice
differences between gas valves and references in
manuals. Consider the following:
Read only the Inlet gas pressure.
Open the inlet gas port and connect the
manometer:
Gas pressure must not exceed 14" water
column (WC).
Gas pressure must not be less than 4"WC
at any firing rate.
Gas pressure at ignition must not fall more
than 2"WC from static pressures.
6/18/2018 www.ibcboiler.com
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IBC SL G3 Series Specifications

General

Fuel Type	Natural Gas or Propane
Efficiency	Up to 95% AFUE
Heat Exchanger Material	Stainless Steel
Boiler Type	Condensing
Ignition Type	Electronic
Control System	Advanced electronic control with outdoor reset
Vent Type	Direct Vent
Venting	PVC, CPVC

Summary

Equipment and Initial Steps

Equipment needed for commissioning

List of tools and manuals required for boiler commissioning.

Before you start the commissioning process

Preliminary steps before commencing boiler commissioning procedures.

Commissioning a Boiler

Record Gas Type and Pressure

Document the type of gas and all relevant gas pressure readings.

Set Load Type to Manual and Configure Parameters

Configure boiler settings to Manual mode, set maximum supply and heat output.

Flame Current and Gas Lock-up Testing

Check the Flame Current

Verify the flame current (mA) at high and low fire settings.

Test the Gas Lock-up

Perform tests to ensure proper gas pressure regulation and lock-up.

Final Settings and System Checks

Adjust Low Fire Flame Current

Fine-tune low fire flame current using the zero-offset adjustment screw.

Set Load Type Back to Desired Configuration

Restore the boiler's load type to its original setting after commissioning.

Verify System Settings and High Limit

Review configuration and ensure maximum temperature meets load requirements.