Eberspächer Hydronic D4 Installation Manual - page 11
Water pipework
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Water pipework
11
1
Installing fan matrix units
Eberspächer fan matrix units are available in both non-
ducted and ducted versions.
Our non-ducted units feature very low power
consumption fans that gives their maximum performance
when able to allow air to flow with minimal restriction.
Therefore, matrices should be mounted as close to the
area that requires heating as possible. The areas that the
matrices are located must be well ventilated otherwise
the matrix performance will be reduced resulting in poor
airflow and heat output.
Ideal mounting locations are directly behind cabin seat
bases and bunks or the base of hanging lockers. The
chosen location must be dry and free from possible
unpleasant odours that could be distributed by the
matrices into the accommodation.
Ducted units can be mounted remote from the area to
be heated but it is advisable to keep the duct lengths to
the outlets as short as possible to ensure the minimum
heat loss. Again where they are located must be dry
and odour free as well as adequately vented, otherwise
airflow and heat output will be affected.
Controlling the matrices
Matrix units can either be wired or controlled directly
from the Hydronic, or switched individually. Individual
control of each matrix is recommended, as this enables
a greater level of controllability for guests and/or each
area of the boat.
Each individual matrix must be fuse or circuit breaker
protected to the correct rating (which will be dependant
on the model of matrix used).
Connecting to a calorifier
General guide
There are several methods of connecting the Hydronic
into a calorifier and the way this is carried out will
depend on various factors.
• How any existing calorifier is connected.
• Is the calorifier single or twin coil?
3
Fan matrix
125mm hole
Bulkhead or seat base
10 kW matrix
Return
air pipe
Figure 7
Non-Ducted Matrix
Figure 8
Ducted Matrix