This causes the pressure switch to continuously open and close, and if allowed to occur can quickly cause catastrophic system failure. So, if you purchased a 60 gallon per minute pump and only a single head becomes active, where does the other 45 gallons per minute the pump is trying to move go? So, because there is an active demand when the pressure switch resets, pressure quickly drops and the pump starts again, but quickly repeats the same cycle over and over again. Each automatic test last about 60 seconds and each test confirms the pump automatically started when a drop in system pressure occurred. Is a panel required? The cycle will cause breakers to trip, pressure switch points to burn, or electric motors to fail. 
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Sprinkler heads are not connected in a way that if one sprinkler head trips they all trip.
BUILT FOR LIFE® Program from HFSC
Each automatic test last about 60 seconds and each test confirms the pump automatically started when a drop in system pressure occurred. Once the demand for a residential system is determined you can check our documentation and pick the pump that best fits your demand. Answer is the pump system quickly builds pressure in the system back up and the pressure switch resets and the risk of creating a rapid cycling event occurs.
Each panel is designed to automatically start a pump when system pressure drops. Is a panel required?
NFPA 13D Sprinkler Systems | UpCodes
The cycle will cause breakers to trip, pressure switch points to burn, or electric motors to fail. This Self Testing feature significantly increase ease of ownership and we have made it an extremely affordable feature.
Sprinkler heads are triggered by heat and only by heat. This causes the pressure switch to continuously open and close, and if allowed to occur can quickly cause catastrophic system failure.
Absolutely, the pumps shown on www. In a situation like this use of a panel is highly recommended.
Email us for more information. So, if you purchased a 60 gallon per minute pump and only a single head becomes active, where does the other 45 gallons per minute the pump is trying to move go? Is a bigger pump not always better, more water to fight a fire, right?
Similar in everyway, but the Self Testing panel includes a timer designed to start an automatic test once a week. Hfpa, a bigger pump is not always better when it comes time to select a pump for a residential fire sprinkler system.
NFPA 13D: The National Standard
Why is a pump based system needed on a residential fire sprinkler application? So, because there is an active demand when the pressure switch resets, pressure quickly drops and the pump starts again, but quickly repeats the same cycle over and over again.
A single head can only discharge so much water, for example 15 gallons per minute. Meaning when a fire is started only the heads near the fire will trip, which could be just a single head.
What happens in this situation is the pump produces significantly more water than a single head can deliver causing the pump to continuously build enough system pressure to reset the pressure switch, all through there is still an active ngpa.
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