Buderus LOGANO PLUS GB312 Installation Instructions Manual page 30

6
Installing the boiler
▶ Fit a union for metallic cable sheathing at the point of entry.
Fig. 32 Connecting the power supply
When making the electrical connections, refer to wiring
diagram MC10 and installation manual MC10 which are
both part of the delivery.
▶ Undo the two screws on the programming unit cover and remove the
cover.
DANGER: Risk of fatal injury from electric shock.
▶ When carrying out servicing work, label all electrical
leads before disconnecting them.
▶ If leads are connected to the wrong terminals the
boiler may not operate correctly with potentially
dangerous consequences.
Fig. 33 Removing the cover
▶ Always check that the heating system is working properly after
carrying out any servicing work.
30
▶ Route all cables through the cable conduits to the programming and
connect them in accordance with the wiring diagram.
Secure all cables with cable grips (supplied).
▶ Insert the cable grip together with the cable from the top into the slots
in the frame (step 1).
▶ Slide the cable grip downwards (step 2).
▶ Push against the grip (step 3).
▶ Flip the lever up (step 4).
7 747 010 720-36.1RS
Fig. 34 Securing cables with cable clips
▶ Slot the programming unit cover into the guides and slide downwards.
▶ Secure the programming unit cover with the two screws.
Fig. 35 Fitting the cover
7 747 010 720-33.1RS
DANGER: Fire hazard from hot boiler components.
Hot components may damage electrical wiring.
▶ Ensure that all wiring is routed through the cable
conduits provided or on the boiler insulation.
Logano plus GB312 – 6 720 647 367 (2012/11)
7 747 010 720-34.1RS
7 747 010 720-35.1RS