Baxi HP40-XX-MB Operation Manual page 24

A
Cutting place of left down side
wire outlet
60mm
Putty
Trap
Avoid the water entering into the wired remote controller, use trap and putty to
seal the connectors of wires during wiring installation.
Left down
side wire
outlet
B
Wiring
hole
Putty
Trap
22
C
Wall hole and wiring hole
Diameter： Φ8--Φ10
Putty
Trap