Water Systems
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QD Tests: Start and run capacitor   Q.D. (blue) relay   Potential (voltage) relay   Solid state switch    
Integral Tests: Overloads   Capacitor   Relay coil   Relay contact   Contactor coil   Contactor contacts


Ohmmeter Tests
QD, Solid State Control Box (Power Off)
A.  START CAPACITOR AND RUN CAPACITOR IF APPLICABLE (CRC)
  1. Meter Setting: R x 1,000.
  2. Connections: Capacitor terminals.
  3. Correct meter reading: Pointer should swing toward zero, then back to infinity.
B.  Q.D. (BLUE) RELAY
 
Step 1. Triac Test
  1. Meter setting: R x 1,000.
  2. Connections: Cap and B terminal.
  3. Correct meter reading: Infinity for all models.
   
Step 2. Coil Test
  1. Meter Setting: R x 1.
  2. Connections: L1 and B.
  3. Correct meter reading: Zero ohms for all models.


C. POTENTIAL (VOLTAGE) RELAY
Step 1. Coil Test
  1. Meter setting: R x 1,000.
  2. Connections: #2 & #5.
  3. Correct meter readings:
    • For 115 Volt Boxes .7-1.8 (700 to 1,800 ohms).
    • For 230 Volt Boxes 4.5-7.0 (4,500 to 7,000 ohms).
Step 2. Contact Test
  1. Meter setting: R x 1.
  2. Connections: #1 & #2.
  3. Correct meter reading: Zero for all models.
D.  SOLID STATE SWITCH
Step 1. Triac Test
  1. Meter Setting: R x 1,000.
  2. Connections: R (Start) terminal and orange lead on start switch.
  3. Correct meter reading: Infinity for all models.
 
Step 2. Coil Test
  1. Meter Setting: R x 1.
  2. Connections: Y (Common) and L2.
  3. Correct meter reading: Zero ohms for all models.

Ohmmeter Tests
Integral Horsepower Control Box (Power Off)
A.  OVERLOADS (Push Reset Buttons to make sure contacts are closed.)
  1. Meter Setting: R x 1.
  2. Connections: Overload terminals.
  3. Correct meter reading: Less than 0.5 ohms.
B.  CAPACITOR (Disconnect leads from one side of each capacitor before checking.)
  1. Meter setting: R x 1,000.
  2. Connections: Capacitor terminals.
  3. Correct meter reading: Pointer should swing toward zero, then drift back to infinity, except for capacitors with resistors which will drift back to 15,000 ohms.
C.  RELAY COIL (Disconnect lead from Terminal #5)
  1. Meter setting: R x 1,000.
  2. Connections: #2 & #5.
  3. Correct meter readings: 4.5-7.0 (4,500 to 7,000 ohms) for all models.
D.  RELAY CONTACT (Disconnect lead from Terminal #1)
  1. Meter Setting: R x 1.
  2. Connections: #1 & #2.
  3. Correct meter reading: Zero ohms for all models.
E.  CONTACTOR COIL (Disconnect lead from one side of coil)
  1. Meter Setting: R x 100.
  2. Connections: Coil terminals.
  3. Correct meter reading: 180 to 1,400 ohms.
F.  CONTACTOR CONTACTS
  1. Meter Setting: R x 1.
  2. Connections: L1 & T1 or L2 & T2.
  3. Manually close contacts.
  4. Correct meter reading: Zero ohms.
CAUTION: The tests in this manual for components such as capacitors, relays, and QD switches should be regarded as indicative and not as conclusive. For example, a capacitor may test good (not open, not shorted) but may have lost some of its capacitance and may no longer be able to perform its function.