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Northland Pines Maintenance Department
เข้าร่วมเมื่อ 15 ก.ค. 2016
Northland Pines School District Maintenance staff will use this channel to store videos.
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Shut Down Procedures - July 15, 2016
มุมมอง 10K8 ปีที่แล้ว
For false alarm, broken pipe or sprinkler head.
Fire Pump Monthly Churn Test
มุมมอง 127K8 ปีที่แล้ว
If hooked up to fdc. How do I know if fire pump stopped working.
In this video, which valve would you close to prevent catastrophic failure during a churn test? I know NFPA 25 requires it but company policy is to close it before conducting test for liability reasons.
When doing a churn test it is advisable that there are certified oil filled gauges on the sensing lines for both the jockey and fire pumps. These are a better read when dropping pressure than the reading in the controller. Depending also by the AHJ or insurance company some locations what you to close the valve on the discharge side when doing the test because catastrophic failure can happen. The jockey pump on the wall should not be part of a bid anymore because its the cheapest thing that you can install. It was hard to tell inn the video but I never saw a casing relief valve as you showed an air relief. Lastly some pump runs are just a supervisory/trouble. It is always been recommended to tie it in as an alarm. As an example the security guard silenced the trouble on the panel from a smoke detector being out. The pump started inn the pump house on a Friday night and there was smoke coming out of the pump house on a Monday morning. This is why an alarm is suggested.
Wish I knew that yesterday when the sprinklers went off at my job(Sam's Club) great video thanks 👍
Can I shut the os&y to the header or shut the systems off on the butterfly to not pump the systems up ,
I had an experience with a fire system in a “closed” industrial plant. I did a patrol around the complex saw a geyser spraying about 50 feet . All the buildings were surrounded with 4 foot drifts tough to get into building. Blindly found the shutoff valve secured it . Then went to pump building found the 500000 gallon supply tank 2 feet from empty entered the building the 800 hp diesel pump screaming . It took me 15-20 minuets to shut it down . I spent next three hours tracking down supervision to report it to. The system had been spewing water 8 hours because someone changed codes location . First shift didn’t know to do a full check due to misdirection . Wonderful supervision communication ….. NOT😅
Also…you cannot leave while the pump is running.
6:30 No. You cannot do drain tests or whatever during the churn test. It’s in the name. Churn test. That pump needs to churn for 10 minutes. Again…churn. The casing relief valve is being exercised during the churn as well.
I was really hoping that you would explain what the air release valve is four… Downstream of the pump. 🤦🏼♂️
Doing a pump run do i shut any valves off will pressure the whole system?
Shut off the main discharge valve so as not to pressurize the whole fire system while performing your test
good luk my frind
Hard to hear what your saying with pump on ...
Joslyn Clark controller, wonder if it's been replaced by now.
Look like the casing relief valve you are showing look like more like a Air vent? I can be wrong, never mind the main relief valve is under the Air vent
hi there, judging from the video, it looks like there's only a single pumpset for this fire protection service? do you guys practice the 1 duty 1 standby pumpset philosophy or is that not a requirement in NFPA?
You must be in a rich country to ask a question like that
@@daninraleigh naw, I'm in a country with different rules.
If it was the French alps and the systems were turned off yes
@@ann0ynim0us Where??? There's a very small jockey pump but that's just to maintain normal pressure.
Is it normal for water to leak through the suction side of the pump(This is close to the impeller).
if that is on the packing gland, yes its normal
how do you replace the back up battery?
Question: What about the pressure on the field? After the test should we open a drain valve to reduce pressure? Thank you!
By the NFPA 20, the system pressure needs to be maintained close to the main fire pump churn discharge pressure to minimize pressure surges in the pipeline. So, you should not reduce the system pressure after the test. I hope it helps you!
Good training. Thanks.
When you do the churn test and you start the pump by dropping pressure through the sensing line, that is automatic start if the pump is on a 10 min. Timmer it will automatically shut off..so you should always time it..if no automatic shut off then you have to manually press the stop button. And it should be noted on the controller or pump inspection tag as to whether it has a 10 minute run timer...remember if you manually start pump via the start switch you have to manually stop..the auto stop usually only works when you automatically start. Also while the pump is running you should check the packing and bearing to ensure they are not getting hot..Ethier by touch or use a infrared heat gun
Very nice. Can you share you email to me, I'd like to ask you some questions. Here is mine : ogwogwoikenna@gmail.com Thank you.
In NYC, fire pumps can ONLY be stopped by manually
Great video! You mentioned, "If you know which zone is going off or where the heads at you can shut down that zone." What if you don't know where the sprinkler head is going off? Could a person just quickly go in the fire pump room, shut down the fire pump, jockey pump and then the main valve on the discharge side of the pump to stop the city flow? Is that a safe and quick method to reduce water damage to the building?