Roberts Gorden Combat UHD[X][S][R] 75 - Manual (Page 14)

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL
8
5.2 Shelf Mounting and Suspension
Four suspension points (3/8" nuts) are located on
the top of the heater. Drop rods must be 3/8"
diameter mild steel.
When handling or supporting the heater from below,
ensure that the weight is taken at the support points.
For typical suspension, See Page 8, Figure 3.
For typical shelf mounting on existing shelf, See
Page 9, Figure 4.
The gas or electrical supply lines must not be used
to support the heater.
Do not locate the gas or electrical supply lines
directly over the path of the flue products from the
heater.
The heater must be installed in a location that is
readily accessible for servicing.
The heater must be installed in accordance with
clearances to combustibles as indicated on the wall
tag and in this manual.
5.3 Wall Mounting
For typical suspension, See Page 9, Figure 5. Wall
mounted heaters blowing parallel to the wall can
only be installed with the service door away from the
wall.
The wall mounting brackets must be attached to a
suitable wall using all mounting holes. Screw sizes
less than 3/8" may not be used. In order for the wall
mounting brackets to adequately carry the weight of
the heater, it must be installed according to best
building practices.
Figure 3: Suspension Methods
WARNING
Crush Hazard
Use 3/8" threaded rod
minimum.
Failure to follow these
instructions can result in
death, injury or property
damage.
NOTE: Duct supports
not
shown.
Duct supports
and duct are
not provided by
manufacturer.
Support Points
Ensure all suspension
hardware is torqued to
a minimum of 20 ft lbs.
Washer
3/8"
Threaded
Rod
Nut
Unistrut Channel
Nut
Cone Point
Set Pin
Window
Clamp
Unistrut
3/8"
Threaded
Rod
Nut
Washer
Riv
Nut