38
RT-SVX071A-EN
Figure 53.
Through-the-base gas pipe assembly for YSJ(180-300)A
Support Plate
90 Elbow
3/4" x 8 1/2" Pipe Nipple
Tee
3/4" x 4" Pipe Nipple
3/4" x 2 1/2" Pipe Nipple
Cap
90 StreetElbow
90 Street Elbow
3/4" x 6 1/2" Pipe Nipple
3/4" x 2 1/2" Pipe Nipple
Gas Shut-off Valve
Pipe Union
SEE DETAIL A
Grommet
Grommet
Figure 54.
Through-the-base gas pipe assemblies for
YSJ(072-150)A
A
B
C
D
A
E
F
G
H
J
K
L
M
I
1/2” and 3/4” Gas Pipe Connection
Table 5.
Through-the-base gas pipe assembly
components for YSJ(072-150)A (inch)
Component
Description
Connection Size
1/2 inch
3/4 inch
A
Grommets
½
¾
B
TBUG bracket
-
-
C
90° Elbow
½
¾
Table 5.
Through-the-base gas pipe assembly
components for YSJ(072-150)A (inch) (continued)
Component
Description
Connection Size
1/2 inch
3/4 inch
D
Pipe fitting
½ x 7¼
¾ x 6½
E
Gas ball valve
½
¾
F
Street elbow
½
¾
G
Pipe fitting
½ x 2 ½
¾ x 2¼
H
Tee pipe
½
¾
I
Pipe fitting
½ x 4
¾ x 4
J
Pipe cap
½
¾
K
Pipe fitting
½ x 2 ¾
¾ x 2
L
Pipe union
½
¾
M
Pipe fitting
½ x 4 ½
¾ x 5¼
For detailed Through-the-Base Gas Installation
instructions, refer to the
Through-the-Base Gas Piping 3 to
25 Tons Gas/Electric Packaged Units Installation
Instructions
(ACC-SVN17*-EN) provided with Through-the-
Base Gas Installation kit.
Requirements of Gas Heat
The unit gas train and optional through-the-base gas shut-
off valve are rated at 0.50 PSIG maximum. A pressure
reducing regulator is recommended to prevent this
maximum from being exceeded. These components must
be isolated during field gas piping test that exceed 0.50
PSIG. It is recommended that the field piping be capped
prior to the unit gas train or optional through-the-base gas
shut-off valve if present.
