Connecting The Gas Supply Line To The Furnace Gas Train - Trane IntelliPak with Symbio 800 Installation, Operation And Maintenance Manual

Figure 26. Gas heat component dimensions
Note: See gas piping figures for NPT size
Tonnage
Heater Size
250, 350 & 500
20–30
MBh
40–55 350 MBh
40–75 500 MBh
40–75 850 MBh
60–75 1200 MBh
Connecting the Gas Supply Line to the
Furnace Gas Train
Follow the steps below to complete the installation between
the supply gas line and the furnace. Refer to the following
figures, for the appropriate gas train configuration.
1. Connect the supply gas piping using a "ground-joint"
RT-SVX063G-EN
Flue Vent
Heat access
(850 MBH shown)
Gas pipe
Combustion
entry with
inlet rain shield
grommet CPVC Drain
(40-75 ton only)
A B
6.75 7.59
6.75 11.85
6.75 11.85
10.5 18.0
10.5 13.35
A
B
C D
C D
5.29 7.85
5.42 11.58
5.42 11.58
5.42 11.58
5.42 11.58
type union to the furnace gas train and check for leaks.
2. Adjust the inlet supply pressure to the recommended 7"
to 14" w.c. parameter for natural gas (11" to 14" w.c. for
propane).
3. Ensure that the piping is adequately supported to avoid
gas train stress.
Installation
43