Trane Precedent YSJ072 Installation, Operation And Maintenance Manual page 33

Figure 40. Discard cover plate
2. Locate the vent hood behind the panel.
Figure 41. Vent hood shipping location
Note: The above figure shows two-stage gas. Modulating
gas is similar.
3. Install the vent hood on the gas heat panel using the
screws removed in Step 1 and secure to the panel.
RT-SVX071D-EN
Figure 42. Vent hood installation
Temperature Limit Switch Usage
Units are factory shipped in the downflow discharge
configuration but can be field converted to a horizontal
discharge configuration. Some, but not all units require a
different TCO1 limit switch, attached to the combustion
blower motor (6 to 12.5 tons) or to the installed TCO1 limit
switch (15 to 25 tons) if a horizontal discharge configuration
is used.
If any of the units are installed in the downflow discharge
configuration and have the alternate TCO1 limit switch
provided, remove the additional TCO1 limit switch attached
to the combustion blower motor (6 to 12.5 tons) or to the
installed TCO1 limit switch (15 to 25 tons) and discard.
For detailed instructions, refer to
37.
Table 3. TC01 tripping values – two- stage gas
Unit Model
Tons
Number
YSJ072***(0,A)L
YSJ072***(0,A)M
6
YSJ072***(0,A)H
YSJ090***(0,A)L
YSJ090***(0,A)M
7.5
YSJ090***(0,A)H
YSJ102***(0,A)L
YSJ102***(0,A)M
8.5
YSJ102***(0,A)H
YSJ120***(0,A)L
YSJ120***(0,A)M
10
YSJ120***(0,A)H
YSJ150***(0,A)L
YSJ150***(0,A)M
12.5
YSJ150***(0,A)H
YSJ180***(0,A)L
YSJ180***(0,A)M
15
YSJ180***(0,A)H
Installation
"TCO1 Instructions," p.
TCO1 Tripping Values -
Downflow/Horizontal
105°F
120°F
140°F
120°F/110°F
130°F/135°F
125°F/150°F
120°F/110°F
130°F/135°F
125°F/150°F
135°F
125°F/140°F
130°F/150°F
125°F/130°F
130°F
110°F
140°F-3"/150-7"
150°F-3"/195°F-3"
150°F-3"/200°F-3"
33