NTI Trinity TX Series, Инструкция по установке и эксплуатации

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Boiler and Heating System Piping
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Tx I&O Manual
40
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 0015-MS Astro 30 (2)
25 3.3 12
¾”
NRF-25 UPS15-58 0015-MS Astro 50 (3)
20 4.1 16.6
¾”
NRF-36 UPS26-99 0015-MS E7
Tx81
35 4.2 7.4
¾”
NRF-22 UPS15-58 0015-MS Astro 30 (3)
25 5.9 13.4
1”
NRF-36 UPS26-99 0015-MS Astro 50 (3)
20 7.4 20.4
1”
NRF-36 UPS26-99 0013-MS E7
Tx101
35 5.2 8.2
1”
NRF-22 UPS15-58 0015-MS Astro 30 (3)
25 7.3 13.6
1”
NRF-36 UPS26-99 0013-MS E7
20 9.1 19.8
1”
NRF-36 UPS26-99 0013-MS E7
Tx151
2
35 7.7 11.2
1”
NRF-25 UPS26-99 0015-MS Astro 50 (3)
25 10.8 18.4 1-1/4” NRF-36 UPS26-99 0013-MS E7
20 13.5 23.2 1-1/4” PL-36 UPS26-99 2400-20 E8
Tx200
2
35 10.2 10 1-1/4” NRF-25 UPS26-99 0015-MS Astro 50 (3)
25 14.3 20 1-1/4” NRF-36 UPS26-99 0013-MS 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