Horizontal Pipe System - Viessmann Vitocrossal 300 CU3A Installation Instructions Manual

Rigid and flex pipe venting systems

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Table of Contents

Direct Venting (Two-pipe System)

Component Parts of the PP(s) Venting System

Horizontal pipe system

CU3A Venting Systems Installation

(continued)

Legend

A Combustion air intake

B Flue gas outlet

1 Boiler vent pipe adaptor

2 Air intake adaptor (PVC, CPVC, ABS)

3 PP(s) adaptor (110 mm to 100 mm when using M&G

system with Vitocrossal 300 CU3A 45 or 57)

4 90º elbows

5 Combustion air intake straight pipe

6 Straight vent pipe

7 Pipe support

8 Wall plate

9 Bird screen

qP Wall strap with locking band at each

joint, as supplied by manufacturer.

qQ 45º elbows

IMPORTANT

For PP(s) systems, all exhaust vent and air intake piping

and elbows exposed outside, must be UV resistant

polypropylene (supplied by the vent manufacturer).

Table of Contents