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9
2551868AB
Connection Configurations
The ModuSat® XR heat interface unit comes with a variety of connection combinations to ease the
installation and the aesthetics of the installation. Please find the options below.
PF
– Primary flow (in)
CW
– Cold water (in)
SF
– Secondary heating flow (out)
PR
– Primary return (out)
HW
– Hot water (out)
SR
– Secondary heating return (in)
DR
– Secondary heating drain (safety relief discharge)