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DOUGLAS & Co. BF 10H-NG BF 10>LPG HEATER UNITS

INSTALLATION USER INSTRUCTION MANUAL

Page 7 of 20

Installation of flue systems : (Continued)

The BF 10 H Heater Body (Wall box) may be separated from the Heater for attachment to

the Wall or escutcheon, and alignment of the Flue System. This is not a part of the flue system

however it is referred to in flue installation at this

point. The front panel removes from the Heater

Body for set up of the Inner Flue Duct and Elbow through the Wall box, after positioning is checked

and mounting points are determined.

BF 10 H Heater before removal of front cover & internals. Case referred to as Wall box.

All dimensions are in mm.

UNIT OVERALL DIMENSIONS :

The screws are removed from the bottom of the Heater box and

bottom plate is slid out. Gas burner module, water section with

heat exchanger all slide out in one. This allows the Wall box to

be positioned without any weight on the Outer Air Duct. The Wali

box

mounting points should

be determined and

brackets

positioned into studs or escutcheon support. The Heater should

not be self supporting of the Outer Air Duct alone.

BF 10 H Heater after removal of front cover.

'15

/●

●

itfi!

Heater showing face of Wall box

which is fitted to Wall.

Note the screw holes for connection of Outer Air Duct and

tabs for securing Inner Flue Elbow. Heater Internals

are

removed.

This face is against Wall and bracketed to mounting

points before Heater Internals are replaced

When the connections are made to the Outer Air

Duct, the Wall box is completely mounted and

bracketed.

The Heater Internals should now be refitted and

bottom plate slid into place in preparation for the

fitting and alignment of the Inner Flue & Elbow Assembly.