Lochinvar SYNC User Manual

Temperature Rise Temperature Rise Temperature Rise Temperature Rise

r

A

r

A

r

A

20°F Δ T 25°F Δ T 30°F Δ T 35°F Δ T

Boile

SBN1000 GPM Ft/Hd

Flow Head Pump Flow Head Pump Flow Head Pump Flow Head Pump
Rate Loss Rate Loss Rate Loss Rate Loss

55.0 31.0 44.0 22.0 38.0 18.0 32.0 13.0

N/

SYNC PUMP RECOMMENDATION TABLE

GPM Ft/Hd PUM30001 GPM Ft/Hd PUM30001 GPM Ft/Hd PUM30001

Boile

SBN1300 GPM Ft/Hd

Boile

SBN1500 GPM Ft/Hd

Flow Head Pump Flow Head Pump Flow Head Pump Flow Head Pump
Rate Loss Rate Loss Rate Loss Rate Loss

N/

65.0 30.0 52.0 20.0 45.0 16.0 37.0 11.0
Flow Head Pump Flow Head Pump Flow Head Pump Flow Head Pump

Rate Loss Rate Loss Rate Loss Rate Loss

N/

74.0 33.0 60.0 23.0 51.0 18.0 42.0 12.0

GPM Ft/Hd PUM30001 GPM Ft/Hd PUM30001 GPM Ft/Hd PUM30001

GPM Ft/Hd PUM30001 GPM Ft/Hd PUM30001 GPM Ft/Hd PUM30001

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.