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5
Hydraulics
This chapter deals with the hydraulics that needs to be considered before installation.
Panel configurations
Before you can start constructing the system you have designed, you must consider how the banks
will be connected together. You must also take into account the maximum number of panels
allowed per bank, as shown below.
These maximums may be exceeded if there is
high-pressure flow or substantial back pressure
on the system that will force adequate flow
through every panel. In other cases you should
divide the bank into two using one of the other
configurations.
Banks in parallel can also be used for smaller
installations, when space is limited.
Guidelines for residential installations
Panel Layout
Flow rate
Single Bank:
It is not recommended to install more than 6
panels for this layout.
120 lit/min
Bank in Series:
When installing more than 6 panels, it is
advisable to use the split in series bank system.
This will allow you to control the flow rate
more efficiently.
Remember
that the largest bank is always
installed first before the split then smaller
bank.
(A) 4 Bank
–
split
–
3 Bank
(B) 4 Bank
–
split
–
4 Bank
(C) 5 Bank
–
split
–
4 Bank
(A)
80 lit/min
(B)
80 lit/min
(C)
100 lit/min
These configurations are calculated around availability from a pump in a residential configuration
of ± 120 lit/m. Maximum subject to available flow in 10 in 1 bank but this is usually in dedicated
industrial / commercial set ups.
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