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Tx I&O Manual
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Boiler and Heating System Piping
41
Table 10-4 Circulator and Pipe Size Requirements
Model
Temp.
Rise (ºF)
Boiler Flow
Rate (GPM)
Boiler Head
Loss (ft)
Minimum
Pipe Size
Recommended Primary Loop Pump Size
(1)
B&G
Grundfos
Taco
Armstrong
Tx51
35
2.4
7.2
¾”
NRF-22
UPS15-58 (1)
005
Astro 30 (2)
25
3.3
12
¾”
NRF-25 (3)
UPS15-58 (3)
008
Astro 50 (3)
20
4.1
16.6
¾”
NRF-36 (2)
UPS26-99 (2)
0011
E7
Tx81
35
4.2
7.4
¾”
NRF-22
UPS15-58 (2)
008
Astro 30 (3)
25
5.9
13.4
1”
NRF-36 (1)
UPS26-99 (2)
0011
Astro 50 (3)
20
7.4
20.4
1”
NRF-36 (2)
UPS26-99 (3)
0011
E7
Tx101
35
5.2
8.2
1”
NRF-22
UPS15-58 (2)
008
Astro 30 (3)
25
7.3
13.6
1”
NRF-36 (2)
UPS26-99 (2)
0011
E7
20
9.1
19.8
1”
NRF-36 (3)
UPS26-99 (3)
0011
E7
Tx151
2
35
7.7
11.2
1”
NRF-25 (3)
UPS26-99 (2)
0011
Astro 50 (3)
25
10.8
18.4
1-1/4”
NRF-36 (3)
UPS26-99 (3)
0011
E7
20
13.5
23.2
1-1/4”
PL-36
UPS26-99 (3)
2400-20
E8
Tx200
2
35
10.2
10
1-1/4”
NRF-25 (3)
UPS26-99 (2)
0011
Astro 50 (3)
25
14.3
20
1-1/4”
NRF-36 (3)
UPS26-99 (3)
0011
E9
20
17.9
29.7
1-1/2”
PL-55
3
UPS26-150
3
2400-45
3
E21
3
Notes:
1
Pump sizing based on Primary/Secondary plumbing configuration with specified minimum pipe diameter with up to 50’
equivalent length.
2
Models Tx151C and Tx200C incorporate the circulator responsible for generating flow through the boiler, therefore
sizing the circulator for boiler flow rate is not necessary.
3
The amperage draw of circulator models PL-55, UPS26-150, 2400-45 and E21 exceed the switching capacity of the
boiler pump contacts, an isolation relay must be utilized.
Figure 10-3(a) Tx51 & Tx81 Head Loss Curves
0
5
10
15
20
25
30
2
4
6
8
Flow Rate (US gpm)
H
e
a
d
L
o
s
s
(ft)
Tx51
Tx81
Содержание Trinity TX101
Страница 54: ...Field Wiring Tx I O Manual 54 Figure 12 2 Field Wiring ...
Страница 57: ...Tx I O Manual Wiring Schematics 57 14 0 WIRING SCHEMATICS Figure 14 1 Tx Connection Diagram ...
Страница 58: ...Wiring Schematics Tx I O Manual 58 Figure 14 2 Tx Ladder Logic Diagram ...
Страница 83: ...Tx I O Manual Parts List 83 NOTES ...