Trane Gas Unit Heaters Wartungshandbuch

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Installation: Mechanical
GTND-SVX01B-EN
19 
Note: See 
 for “E” dimension.
Nozzle Assembly
Use the following procedure for assembling the 30-, 60-, or 
90-degree nozzle assembly to your unit heater.
1.
Remove the louvers and the cone springs from the unit 
heater.
2. Remove the four (4) screws from the upper section of 
the front of the unit heater and use these same screws 
to temporarily attach the top bracket 
 
(P/N 252-07948-00X).
a. Using the holes in the top bracket as a guide, pre-
drill a 1/8” (0.125”) hole at each location across the 
front panel of the unit heater.
b. Using the enclosed screws, permanently attach the 
top bracket.
3. Remove the upper two (2) screws from the lower 
section on the front of the unit heater. Repeat the 
procedure described in 
 using the bottom 
bracket (P/N 252-07949-00X).
4. Using the sixteen (16) 5/16-12 x 1/2 screws, attach the 
left and right side panel (P/N 251-07944 and 251-07946) 
to the unit heater using the holes to which the louvers 
were attached.
5. Using the enclosed #8-18 x 1/2 screws and with the top 
panel oriented such that the side with the larger holes 
is facing the unit heater, attach the top panel 
 
(P/N 251-07942-00X) to the top bracket and the two (2) 
side panels.
Note: The top panel must be attached so that the side 
with the larger holes is facing the unit heater; 
this is a requirement for later steps in this 
installation procedure.
6. Using the enclosed #8-18 x 1/2 screws and with the 
bottom panel oriented such that the side with the larger 
holes is facing the unit heater, attach the bottom panel 
(P/N 251-07943-00X) to the bottom bracket and the two 
(2) side panels.
Note: The bottom panel must be attached so that the 
side with the larger holes is facing the unit 
heater; this is a requirement for later steps in 
this installation procedure.
7.
For 30-degree nozzle assemblies: Go to 
8. For 60- and 90-degree nozzle assemblies: Using the 
enclosed #8-18 x 1/2 screws and with the top and 
bottom panels oriented such that the sides with the 
Figure 18.
Unit sizes 150–400: Flue collar adapter 
installation
Figure 19.
Unit sizes 150–400: Heater mounting
(a)
(a) All hanging hardware and wood is not included with the unit (to be field sup-
plied).
Figure 20.
Unit sizes 150–400: Wood construction joists