Specifications

TM024 Premier Loline Solar Drain back Service Instructions REV: A

D.O.I: 12/12/2007

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Voltages up to 240 volts will be present within the water heater, take care

not to touch wiring terminals. Use an insulated tool when operating the DIP

switch or MIN and MAX buttons.

1. Remove the front cover from the water heater.

2. Turn DIP SWITCHES 3 and 4 on (up position) on the I.C. Board. The current preset

temperature is displayed on the LED.

3. Press the MIN or MAX button, located under the DIP Switches, until 60ºC is displayed.

4. Turn DIP SWITCHES 3 and 4 off (down position). The temperature display is now

turned off.

5. Refit the front cover to the water heater.

Electrical Insulation Testing

There are three basic test procedures that should be carried out when the operation and

function of a Premier Loline water heater’s electrical system is in doubt.

Wear Personal Protective Equipment when conducting step 1 of these

procedures to reduce the risk of electric shock. Refer to Rheem safety

procedure on electrical testing.

590 & 596 Models

Procedure 1: Insulation resistance of the water heater Neutral Circuit. (Reading not

to be below 0.66 Mega ohm).

1. Isolate power to the water heater by switching off at power point and unplugging

appliance 3 pin plug from power point. Confirm with multi-meter across terminal

block Active and Neutral, then Active and Earth, then Neutral and Earth that

voltage is not present.

2. Connect megger leads to the Neutral of the water heater wiring and Earth.

3. Operate megger. A reading above 0.66 Mega ohm should be obtained.

4. If a reading below 0.66 Mega ohm is indicated, all component parts will need to be

individually tested to locate the fault. Refer to Fault Finding Chart 1.4 on page 30.

Procedure 2: Insulation resistance of the water heater Active Circuit (reading not to

be below 0.66 mega-ohm).

6. Connect megger leads to the Active of the water heater wiring and Earth.

7. Operate megger. A reading above 0.66 Mega ohm should be obtained.

8. If a reading below 0.66 Mega ohm is indicated, all component parts will need to be

individually tested to locate the fault. Refer to Fault Finding Chart 1.4 on page 30.

Procedure 3: To check “Continuity” of the water heater electrical circuit.

9. Set megger to resistance scale or multimeter to x1 resistance scale.

10. Measure between the Active and Neutral terminals on the power supply terminal block

located behind the upper electrical access cover. The resistance should be

approximately 1.82 kilo ohms for 590 models and 51.5 ohms for 596 models. If a

reading outside these resistance values is obtained, all electrical component parts will

need to be individually tested to locate the fault. Refer to Specifications table on page 4

for indicative resistance values of components.

11. Plug appliance 3 pin plug back into power point and switch on power point. Note: If

continuing with any diagnostic procedures do not perform this step.