Baxi 748 Installer's Manual page 23

INSTALLER GUIDE
3. Insert a fibre plug into each hole. Use the fibre plugs
supplied with this appliance - Never use plastic plugs
instead of the fibre plugs supplied. Screw the eyebolts
into the plugs. Make sure that the bolts are secure.
4. Place the hotbox unit close to the fireplace but allow
sufficient access into the fireplace opening so that the
cables can be threaded through the eyebolts and returned
through the side of the hotbox. If a concealed connection
is being used, insert the hotbox into the fireplace feeding
the supply pipe through the pierced hole in the rear
grommet.
5. The rear of the hotbox has a slot and hole each side of
Figure 16. Cable route
the outlet opening. Assemble one end of the
cable to the top of the fire by passing it
through the small round hole and locking by
positioning the cable in the adjacent slot (See
figure 15). Give the cables a pull so that they
grip.
6. Thread the cables through the eyebolts.
Return the cables through the holes near the
bottom of the hotbox side panels (See figure
17).
7. Place the hotbox fully back into the
fireplace opening so that it is sealed against
the fireplace front surround.
8. Fit a cable retainer over the bottom end of
each cable.
9. Pull each cable taut. Push the cable
retainers hard up against the side panels. The
end of the cable adjuster will pass into the
hole. Tighten the screws in the retainers so
that they clamp the cables in position. Apply
Figure 17. Lower cable retention
tension to the cables by turning the hexagonal
adjusters by hand (See figure 17).
10. Inspect the installation of the hotbox against the fireplace surround. If the hotbox is
aligned squarely and the sealing is satisfactory, fully tighten the cable retainers.
11. If the hotbox is not correctly aligned, release the tension on the cables by slackening
the screws and turning the hexagonal adjusters fully anticlockwise. The hotbox should
then automatically realign itself. Pull each cable taut again and push the cable retainers
back against the side panels. Again, tighten the screws in the retainers and apply tension
to the cables by turning the hexagonal adjusters clockwise as far as possible.
Page 23
©
Baxi Heating U.K. Limited 2006.