Installation; Code Requirements; Removing An Existing Gas Boiler - IBC EBX Series Installation And Operation Manual

6.0 Installation

Refer to the Specifications section for dimensional drawings and connection specifications. Use these
drawings to find a suitable location for the appliance.

6.1 Code requirements

The appliances are tested and certified under CSA22.2 No.165-17 and/or UL834 (5th edition). Below
are the code requirements for every installation.
Canada
Conform to local codes, or in the absence of
these, with the latest editions of the Canadian
Electrical Code Part 1 CSA C22.2 No. 165-17.
Table 2 Code requirements by country

6.2 Removing an existing gas boiler

When an existing gas boiler is removed from a common venting system, the common venting
system may be too large for proper venting of the appliances that remain connected to it. When
resizing any portion of the common venting system, use the minimum size according to the
appropriate tables in the National Fuel Gas Code, ANSI Z223.1 - latest edition. In Canada, follow
the B149.1 Installation Code.
When removing an existing gas boiler, the following checks must be carried out for each of the
appliances still connected to the common exhaust system, by operating them one at a time:
Seal any unused opening in the common venting system.
Visually inspect the venting system for proper size and horizontal pitch. Determine that there
is no blockage or restriction, leakage, corrosion and other deficiencies that could cause an
unsafe condition.
(Where practical) Close all building doors and windows such as doors adjacent to
appliances remaining connected to the common venting system and other spaces of the
building.
Turn on clothes dryers and any appliance not connected to the common venting
system.
Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will
operate at maximum speed. Do not operate a summer exhaust fan.
Close fireplace dampers.
Place in operation the appliance being inspected.
Follow the lighting instructions.
Adjust the thermostat so that the appliance operates continuously.
US
Conform to the current National Electrical Code
ANSI/NFPA 70 and UL 834 (5th edition).
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