My submersible deep well irrigation pump was installed by a person who is now out of business. From the beginning, if I opened up the flow so that the pump ran continuous (without reaching the 60 psi cutoff pressure), the overload protector on the Franklin controller would trip after 5-10 minutes. With a lower flow demand, the pump cycles on and off with the pressure switch and will run fine. I understand now that this is hard on a pump to rapidly cycle, plus I'm not getting the full use out of the pump.
I recently measured the amperage drain and found it to be 15% higher than the Myers published values. However, all the resistence checks recommended in the Myers booklet for line leakage and motor windings check good. The specs are:
Myers 1-1/2 HP 230V 20 GPM (3ST152-20)
18 gal bladder tank @38 psi charge
cutin-cutout: 40-60 psi
-----------------Myers --------------- My
---------------- Values ---------------Readings
supply Volt .........230 ........................240 (4% high but not 15%)
lead amps...Y ......11.5 ......................13.2
................B ......11.0 ......................12.8
................R ......1.3 ........................1.2
I was ready to pull the pump and inspect the wiring and splices but since the resistence readings are good, now I'm not sure. Suggestions?
I recently measured the amperage drain and found it to be 15% higher than the Myers published values. However, all the resistence checks recommended in the Myers booklet for line leakage and motor windings check good. The specs are:
Myers 1-1/2 HP 230V 20 GPM (3ST152-20)
18 gal bladder tank @38 psi charge
cutin-cutout: 40-60 psi
-----------------Myers --------------- My
---------------- Values ---------------Readings
supply Volt .........230 ........................240 (4% high but not 15%)
lead amps...Y ......11.5 ......................13.2
................B ......11.0 ......................12.8
................R ......1.3 ........................1.2
I was ready to pull the pump and inspect the wiring and splices but since the resistence readings are good, now I'm not sure. Suggestions?