Joint Flue Gas Outlet; Dimensions For Back-To-Back Configurations; Dimensions For Linear Configurations - DeDietrich Innovens MCA 160 Manual

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through construction. Recirculation problems may arise where discharge
takes place into recesses and in the vicinity of rising walls.
Important
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5.3.3

Joint flue gas outlet

If there is sufficient height, a collector system can be used (not supplied by
us). In the design of the collector system, a distinction is made between a
series or parallel configuration. This document only covers the series con­
figuration.
In series configurations, individual boilers are connected directly to a hori­
zontal collector, which then continues on to the vertical section. An advant­
age of this configuration is that only one (room-ventilated operation) or two
(room-sealed operation) collector pipes run immediately above the boilers.
This document describes a flue gas connection for several boilers under
high pressure. This means smaller diameters for the flue gas discharge
pipe. Standard MCA 160 boilers have an integrated flue gas non-return
valve for this. This creates a considerable saving on the cost of a com­
bined flue gas outlet system with several boilers switched in a cascade.
Important
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5.3.4

Dimensions for back-to-back configurations

In the case of back-to-back configurations, it is easy to connect the boilers
open and to lead the individual flue gas pipes together through one or two
openings, for example. Closed configurations or configurations with a
common supply must be custom-made.
Important
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5.3.5

Dimensions for linear configurations

This main section contains tables for the size of flue gas outlets and air
supply for cascade systems. The tables cover up to 8 boilers. When
compiling the tables, we assumed the boilers will be switched on and off
one by one and that there are no elbows in the horizontal and vertical col­
lector pipes.
Important
The smallest boiler should preferably be located as far as possi­
ble from the vertical section.
Connect the boilers to the collector as follows: direction of flow
or internal flow.
Contact us for more information about greater heights or config­
urations that differ from the drawings.
5 Installation
MCA 39