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3. Installation
3.1 Hydraulic connections and installation examples
The following illustrations provide connection examples (in this instance with 2 mixed heating circuits - MK) for the hydrau-
lic connections.
Components
•
Two heating circuits
•
Heat generator
Legend
VL
Supply line
RL
Return line
HK1
Heating circuit 1 (MK or UK)
HK2
Heating circuit 2 (MK or UK)
HK3
Heating circuit 3 (UK) optional - for heat generators without internal pumps only
WE
Heat generator
KW
Cold water
TWW
Domestic hot water
26
Components
•
Two heating circuits
•
Heat generator
•
Connection set for supplying the domestic water heater via a
third heating circuit
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