Went on a job yesterday afternoon where the sprinklers wouldn't come on.
Well system so i verified water by bleeding a few valves.
Hydraulics eliminated i went to the controller. No response on manual single station.
118 vac in 28.2 out.
Continuity on all stations but no tone on 3 stations. Those 3 stations made my meter buzz or hum during the test.
I began to isolate the system and test each path a number of ways.
There were 8 stations in use, 1 & 2 were 14 ga single strand (one of which was stranded wire) with 14 ga common. 3 runs of 18 ga multi strand with only 2 commons in use.
Stations 1 = 25 ohms, 2 = 52 ohms.
I measured the number 1 common against the remaining stations to pair them up, here is what i got.
3-99, 4-27, 5-13, 6-25, 7-100, 8-100
Next i measured common 2 against all of those stations.
3=54, 4=18, 5=58, 6=71, 7=57, 8=58
When i left the system was working in both manual and in a test program that i set up.
This was a thought twister, what do you think i found?
My money is on Sprinkus, maybe Boots figuring this out in a hurry.
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Well system so i verified water by bleeding a few valves.
Hydraulics eliminated i went to the controller. No response on manual single station.
118 vac in 28.2 out.
Continuity on all stations but no tone on 3 stations. Those 3 stations made my meter buzz or hum during the test.
I began to isolate the system and test each path a number of ways.
There were 8 stations in use, 1 & 2 were 14 ga single strand (one of which was stranded wire) with 14 ga common. 3 runs of 18 ga multi strand with only 2 commons in use.
Stations 1 = 25 ohms, 2 = 52 ohms.
I measured the number 1 common against the remaining stations to pair them up, here is what i got.
3-99, 4-27, 5-13, 6-25, 7-100, 8-100
Next i measured common 2 against all of those stations.
3=54, 4=18, 5=58, 6=71, 7=57, 8=58
When i left the system was working in both manual and in a test program that i set up.
This was a thought twister, what do you think i found?
My money is on Sprinkus, maybe Boots figuring this out in a hurry.
Posted via Mobile Device