Installation and Maintenance Manual
Installation: Mechanical
18 GTND-SVX01B-EN
Unit sizes 30–120 only: The unit heater may be mounted
with the vent outlet, gas and electrical connections to the
right or left of the air moving fan. The unit heater is shipped
with the connections to the right of the fan when looking
in the direction of the air flow. If connections to the right
are required, remove hanger brackets from face of unit and
attach as pictured in Figure 15, p. 18. If connections to the
left are required, invert the heater (180°), mount the
hanging brackets as above, and remove, invert, and
replace the control access panel and the air discharge
louvers.
The unit heater may be mounted by fastening the hanging
brackets directly to ceiling joists or by suspending from
four rods (see Figure 15, p. 18 through Figure 17, p. 18).
For suspension of units, refer to the figures:
• Unit sizes 30–120: Refer to Figure 15, p. 18 through
Figure 17, p. 18.
• Unit sizes 150–400: Refer to Figure 18, p. 19 through
Figure 20, p. 19.
WARNING
Heavy Objects!
Ensure that all hardware used in the suspension of each
unit heater is capable of supporting the unit weight.
Failure to do so could result in unit falling off its
mounting location, which could result in death or
serious injury.
Figure 15. Unit sizes 30–120: Hanger bracket
installation instructions
Figure 16. Unit sizes 30–120: Heater mounting (steel
construction)
Figure 17. Unit sizes 30–120: Heater mounting (wood
construction)










