Lochinvar SYNC SBN1000 Recommendation Table

Temperature Rise
20°F Δ T
Boiler
Flow Head
Rate Loss
SBN1000
GPM Ft/Hd
55.0 31.0
Boiler
Flow Head
Rate Loss
SBN1300
GPM Ft/Hd
65.0 30.0
Boiler
Flow Head
Rate Loss
SBN1500
GPM Ft/Hd
74.0 33.0
This chart provides Pump recommendations for SYNC boilers for the Boiler Loop / Space Heating piping.
Based on specific Temperature Rises, this chart includes calculated Gallon Per Minute flow rate, calculated Foot Head Loss and recommended Pump.
The GPM, Ft/Hd and Pump selection is based on Primary / Secondary Boiler Loop piping of maximum 20 feet of straight pipe, 4 - 90° elbows and 2 - full port ball valves.
See the Installation and Operation manual for more details including pipe diameters and piping diagrams.
Reminder: The SYNC boiler requires TWO pump, one for each heating module.
The Pump recommendations listed above are for the individual heating module.

SYNC PUMP RECOMMENDATION TABLE

Temperature Rise
25°F Δ T
Pump
Flow Head
Rate Loss
N/A
GPM Ft/Hd
44.0 22.0
Pump
Flow Head
Rate Loss
N/A
GPM Ft/Hd
52.0 20.0
Pump
Flow Head
Rate Loss
N/A
GPM Ft/Hd
60.0 23.0
Temperature Rise
30°F Δ T
Pump
Flow Head
Rate Loss
PUM30001
GPM Ft/Hd
38.0 18.0
Pump
Flow Head
Rate Loss
PUM30001
GPM Ft/Hd
45.0 16.0
Pump
Flow Head
Rate Loss
PUM30001
GPM Ft/Hd
51.0 18.0
Temperature Rise
35°F Δ T
Pump
Flow Head
Rate Loss
PUM30001
GPM Ft/Hd
32.0 13.0
Pump
Flow Head
Rate Loss
PUM30001
GPM Ft/Hd
37.0 11.0
Pump
Flow Head
Rate Loss
PUM30001
GPM Ft/Hd
42.0 12.0
Pump
PUM30001
Pump
PUM30001
Pump
PUM30001