General - Aqua Control COMBO Series Instruction Manual

Set Up the Multimeter
1.
Ohms
a.
Know the range of Ohms available for your multimeter and whether your meter is auto-ranging.
i.
Set the multimeter to the lowest Ohm (resistance) setting. Resistance is designated by Ohms.
ii.
Determine how your multimeter designates open line. Observe the reading when both probes are held in the
iii.
air, not touching.
Determine how your multimeter designates continuity. This is done by touching the two probes. This should
iv.
be either zero or very close to zero. If not zero, this may be resistance internal to the meter and should be
subtracted from all subsequent readings. If your meter has an "auto-zero" feature, use it to zero the meter.
Volts
b.
Set the multimeter to the highest setting
i.
Select AC volts. This is usually designated by VAC.
ii.
Amps - Use only a clamp ammeter e.g., Amp probe.
c.
Check Neutral to Ground Voltage
2.
Set multimeter to AC voltage, highest rating.
a.
Check the voltage between Neutral and Ground.
b.
The voltage should be zero.
c.
If the voltage is other than zero, the neutral line may be bad.
d.
A bad neutral may lead to faulty GFCI tripping.
e.
Check Input Voltages - readings should be within 10% of nominal voltage.
3.
Verify voltage rating of control panel matches supply voltage at the rotary disconnect prior to startup.
a.
Check Output Voltages
4.
1-Phase: Black – Yellow
a.
3-Phase: T1 – T2, T1 – T3, T2 – T3
b.
Analysis
c.
i. Each reading should give source voltage.
ii. If good, problem is not in control panel although overloads or GFCIs may be too sensitive and cause premature
tripping.
iii. If zero voltage: backtrack through components, checking input vs. output voltages, to determine which
one is tripped or faulty.
iv. If low voltage: very unlikely, control panel wired incorrectly.
Check Amps – readings should be within 10% of nominal voltage.
5.
Single phase – check yellow wire.
a.
Three phase – check each hot wire; readings should be within 5% of one another.
b.
If overload tripped, perform "Overload Troubleshooting Procedures"
6.
14
GENERAL TROUBLESHOOTING
50Hz GENERAL TROUBLESHOOTING
Aqua Control, Inc. 60Hz / 50Hz Combo Series Instruction Manual