37
Figure 32: Series 24 Minimum Piping Recommendation 2 - Water Boiler
Figure 33: Series 24 Minimum Piping Recommendation 3 - Water Boiler
Recommendation 3 — Use when:
•
system return water is less than 135° F for prolonged periods of time
•
system flow does impact flow through the boiler(ie. zoning, mixing)
•
requires addition of RTC Return Temperature Control and accessories
NOTES:
1. All piping is schedule 40.
2. Pipe sizes listed are based on a 20°F or 40°F differential (temperature drop).
Select one to match application.
3. When specified return piping size is less than 3”, install 3” X 12” nipple and appropriate
size bell reducer directly into boiler return tapping as shown.
4. Drain valve — ball valve preferable, gate valve acceptable alternative
(supplied by others).
- Minimum valve size per ASME code is 3/4” NPT
5. Maximum linear feet of pipe from 3-way bypass port to sensor location = 11 feet.
Bypass line shall be the same diameter as return
Á
6. Minimum linear feet of pipe from point of mixing (where bypass meets return line) to
sensor location = 4 feet.
7. Install special 3” x 12” nipple with 1/4” NPT side tapping closest to boiler. Where
applicable, use bell reducer to adapt to recommended return pipe size.
8. Proper boiler circulator sizing is listed in Appendix B.
Pipe Sizing and Notes
L
E
D
O
M
Y
L
P
P
U
S
G
N
I
P
I
P
)
N
I(
E
Z
I
S
)
1
(
)
N
I(
E
Z
I
S
G
N
I
P
I
P
N
R
U
T
E
R
)
2
(
N
R
U
T
E
R
N
R
U
T
E
R
R
E
D
A
E
H
)
A
2
(
N
R
U
T
E
R
H
C
N
A
R
B
)
B
2
(
E
Z
I
S
).
Y
T
Q
(
F
°
0
2
P
O
R
D
F
°
0
4
P
O
R
D
F
°
0
2
P
O
R
D
F
°
0
4
P
O
R
D
F
°
0
2
P
O
R
D
F
°
0
2
P
O
R
D
3
0
-
4
2
4
0
-
4
2
5
0
-
4
2
6
0
-
4
2
7
0
-
4
2
8
0
-
4
2
9
0
-
4
2
0
1
-
4
2
1
1
-
4
2
2
1
-
4
2
2
2
2
2
/
1
-
2
2
/
1
-
2
2
/
1
-
2
3
3
3
4
2
/
1
-
1
2
/
1
-
1
2
/
1
-
1
2
/
1
-
1
2
2
2
2
/
1
-
2
2
/
1
-
2
2
/
1
-
2
2
2
2
2
/
1
-
2
2
/
1
-
2
2
/
1
-
2
3
3
3
4
2
/
1
-
1
2
/
1
-
1
2
/
1
-
1
2
/
1
-
1
2
2
2
2
/
1
-
2
2
/
1
-
2
2
/
1
-
2
—
—
—
—
—
—
—
—
—
3
—
—
—
—
—
—
—
—
—
3
)
2
(
Содержание 24-03
Страница 2: ...2...
Страница 8: ...8 Section I General Information FIGURE 1 Dimensional Information...
Страница 20: ...20 Figure 16 Bare Boiler Assembly...
Страница 24: ...24 Figure 22 Series 24 Jacket Assembly Boiler Models 24 03 thru 24 12...
Страница 29: ...29 This Page Is Intentionally Left Blank...
Страница 40: ...40 Figure 35 Typical Steam Piping Arrangement for Boilers with Pumped Condensate Return and Boiler Feed Unit...
Страница 45: ...45 Figure 41 Typical Boiler Wiring with RTC Front...
Страница 46: ...46 Figure 42 Typical Boiler with RTC Return Sensor Rear...
Страница 60: ...60 Figure 43 Series 24 Jacket Assembly Boiler Models 24 03 thru 24 12 SECTION VII REPAIR PARTS Continued...
Страница 62: ...62 Figure 44 Bare Boiler Assembly...
Страница 89: ...89 SERVICE RECORD DATE SERVICE PERFORMED...
