
Water flow rate
The water flow rate must meet the following conditions:
-
inside the exchanger operating limits (see the Technical
Data chapter)
-
It must be guaranteed even under changing plant con
-
ditions (e.g. plants with zones that are switched off in
certain situations)
If the flow rate of the system is lower than the minimum
flow rate, the system must be bypassed as shown in the
“Minimum flow rate” figure.
If the flow rate of the system is higher than the maxi
-
mum flow rate, the heat exchanger must be bypassed as
shown in the “Maximum flow rate” figure.
Non-return valve
Provide for the installation of non-return valves (A) in the
case of several units connected in parallel.
Domestic hot water
See „Electrical Connections“ chapter.
Minimum water flow
Maximum water flow
Non-return valve
A
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HyDRaUlIC ConnECTIon