ECR International UTICA BOILERS MAC-150 Manuel D'installation, D'utilisation Et D'entretien page 17

4.1 VENTING INSTRUCTIONS
4.1.1 Concentric venting
• Examine all components for possible shipping damage, prior to installation.
• This venting system must be free to expand and contract.
• The venting system must be supported in accordance with these instructions.
• The vent system must have unrestricted movement through walls, ceilings and roof penetrations.
• Check for proper joint construction when joining pipe to fittings.
• If venting is penetrating ceilings and floors, the openings must have firestopping provided in joist areas and the installation of
firestop spacer assemblies.
• Roof flashing parts are shown in the manual. Standard roof flashing methods must be employed to install the roof flashing.
• Wall and roof openings must be framed to provide support and the attachment of termination assemblies.
Please Note:
The manual uses the terms 'vent' , 'venting' and 'flue' interchangeably. A ll r eferences t o ' flue' ar e sy nonymous wi th 'v ent' or
'venting'.
WARNING
Check all measurements before cutting. Clearance to combustible materials when using a concentric vent system is
zero.
NOTICE
All concentric venting must be fastened together using screws.
Note: Dual flue venting is not to be fastened with screws. This procedure only pertains to concentric venting.
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240011317, REV D (07/30/16)