Connection and wiring diagram
§
Boiler water temperature sensor
$
Outlet temperature sensor (only
gas combi boilers)
%
Cylinder temperature sensor (only
gas system boilers)
sÖ
Internal circulation pump
(cont.)
dG
Gas solenoid valve
fJ
Temperature limiter
a-Ö Fan
aCA Air pressure switch
aVL Flow switch
a:Ö Modulation coil
Designs
47