Lochinvar KNIGHT 51 - Manual (Page 36)

Installation & Operation Manual
36
6
Hydronic piping
6
Figure 6-2 Pressure Drop vs. Flow - Models 50 - 210
20°F Temperature Rise Applications
Model GPM FT/HD
Minimum Pipe
Size
Pump
Grundfos TACO B & G Armstrong
51 5.1 11 1" UPS26-99F 0011 NRF-36 E7
81 7.5 24 1" UPS26-99F 0011 NRF-36 E7
106 9.8 27 1" UPS26-99F 0013 NRF-36 E11
151 14.0 20 1" UPS26-99F 0011 NRF-36 E7
211 19.6 29 1" UPS32-160 1400-50 PL-55 E9
Table 6A Circulator Recommendations for Temperature Rise Applications_20°, 25°, and 35°
25°F Temperature Rise Applications
Model GPM FT/HD
Minimum Pipe
Size
Pump
Grundfos TACO B & G Armstrong
51 4.1 7.3 1" UPS15-58FC 0014 NRF-36 E7
81 5.9 15.0 1" UPS15-58FC 0014 NRF-36 E7
106 7.7 17.5 1" UPS26-99F 0014 NRF-36 E7
151 11.0 12.8 1" UPS26-99F 0014 NRF-36 E7
211 15.5 19.0 1" UPS26-99F 0013 NRF-36 E7
35°F Temperature Rise Applications
Model GPM FT/HD
Minimum Pipe
Size
Pump
Grundfos TACO B & G Armstrong
51 2.9 4.1 1" UPS15-58FC 007 NRF-22 Astro-30
81 4.2 7.3 1" UPS15-58FC 007 NRF-22 Astro-30
106 5.5 9.8 1" UPS15-58FC 007 NRF-22 Astro-30
151 7.9 10 1" UPS15-58FC 008/0010 NRF-36 Astro-30
211 11.0 10.1 1" UPS15-58FC 0010 NRF-36 Astro-50
Pumps listed in bold type are provided by the factory as the boiler circulation pump on standard altitude
models.
NOTICE
Pumps listed in italicized type are provided by the factory as the boiler circulation pump on high altitude
models.
NOTICE
The temperature rise provided by a pump/model combination will decrease by 3% per 1000 feet of elevation. NOTICE