Attach door handle
Fasten the door handle with 2 M5 x 10 round-
headed screws.
Install cable chain on boiler
Insert the cable chain behind the cover
and fasten the end of the chain to the circuit board
with 2 self-tapping 3.5 x 9.5 screws.
Install insulation door on boiler
Hang the insulation door on the hinges and secure
it with the hinge pins.
Screw cover onto door frame
Attach the cover to the door frame on the side
opposite the cable chain with a self-tapping 3.5 x
9.5 screw.