UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL
5.2 Shelf Mounting and Suspension
WARNING
Crush Hazard
Use 3/8" threaded rod minimum.
Failure to follow these instructions can result in death, injury or property damage.
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.
Figure 3: Suspension Methods
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.
Unistrut Channel
Nut
Washer
Nut
3/8"
Threaded Rod
3/8" Threaded 
Rod
Nut
Washer
Riv 
Nut
Ensure all suspension hardware is torqued to a minimum of 20 ft lbs.
NOTE: Duct supports not shown. Duct supports and duct are not provided by manufacturer.
Cone Point
Set Pin
Window
Clamp
Unistrut
Support Points
8