Trane GHND-SVX01A-EN - Manual (Page 14)

14 High Efficiency Propeller Fan Gas Unit Heater •
GHND-SVX01A-EN
Installation
Note: Unit heater sizing should be based on heat loss calculations where the unit
heater output equals or exceeds heat loss. Heater output is approximately 80%
of input BTU/HR. rating.
Clearances:
Each Gas Unit Heater shall be located with respect to building construction and other
equipment so as to permit access to the Unit Heater. Clearance between walls and the
vertical sides of the Unit Heater shall be no less than 18 inches (457mm). A minimum
clearance of 6 inches (152mm) must be maintained between the top of the Unit Heater
and the ceiling. The bottom of the Unit Heater must be no less than 12 inches (305 mm)
from any combustible. However, in order to ensure access to the burner compartment,
a minimum distance of 21 inches (533 mm) is required. The distance between the flue
collector and any combustible must be no less than 6 inches (152mm). Also see AIR
FOR COMBUSTION and VENTING sections.
Note: Increasing the clearance distances may be necessary if there is a possibility of
distortion or discoloration of adjacent materials.
Note: IMPORTANT! Make certain that the lifting methods used to lift the heater and
the method of suspension used in the field installation of the heater are capable
of uniformly supporting the weight of the heater at all times.
Make certain that the structure to which the heater is mounted is capable of supporting
its weight. Under no circumstances must the gas lines, the venting system or the
electrical conduit be used to support the heater; or should any other objects (i.e. ladder,
person) lean against the heater, gas lines, venting system or the electrical conduit for
support.
Unit heaters must be hung level from side to side and from front to back. Failure to do
so will result in poor performance and or premature failure of the unit.
Insure that all hardware used in the suspension of each unit heater is more than
adequate for the job. Refer to figures
1-5 and dimensional data per table 1 for
suspension of units.