Lennox BCK 020 Installation Operating & Maintenance Manual page 23

INSTALLATION ON A ROOF MOUNTING FRAME
NON ADJUSTABLE NON ASSEMBLED ROOFCURB INSTALLATION
FRAME PARTS IDENTIFICATION
Figure 14 shows the different parts for identification
INSTALLATION
The roof mounting frame provides support when the units are installed in down-flow configurations.
The non adjustable, non assembled roof mounting frame can be installed directly on decks having adequate structural
strength or on roof supports under deck. See page 23 for frame dimensions, location of supply and return air opening
NOTE: frame assembly must be installed flat, levelled within 5mm per linear meter in any direction.
Page 22 - IOM / ROOFTOP BALTIC Series - 0803 - E
UNIT FLOOR
UNIT FLOOR
INSULATION
AIR DUCT
Fig. 14
UNIT SUPPORT RAIL
ROOFCURB
Fig. 15