P-K SONIC
TM
Gas Fired Boiler
T
T
T
Technical Service 1.877.728.5351
echnical Service 1.877.728.5351
echnical Service 1.877.728.5351
echnical Service 1.877.728.5351
Hydronics/Water Flow
(SC-3000 / SC-4000)
The chart below represents the pressure drop (Ft of Head) versus the water flow rate (GPM) for the SONIC
TM
SC-3000 and SC-4000 boilers. This information is useful to help size an appropriate circulation pump.
Keep in mind this pressure drop represents the boiler only, additional consideration is needed for any
connecting piping, valves, strainers, couplings, flanges, etc
∆
.
The table below summarizes the minimum and maximum flow restrictions for the SC-3000 boiler:
Flow Condition
Boiler Operation
Flow Rate
Approximate
∆
T
Maximum Flow
High Fire
285 GPM
20 °F
Minimum Flow
Ignition
72 GPM
20 °F
Minimum Flow
Low Fire
57 GPM
20 °F
The table below summarizes the minimum and maximum flow restrictions for the SC-4000 boiler:
Flow Condition
Boiler Operation
Flow Rate
Approximate
∆
T
Maximum Flow
High Fire
384 GPM
20 °F
Minimum Flow
Ignition
98 GPM
20 °F
Minimum Flow
Low Fire
76 GPM
20 °F
