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COMMISSIONING

TO CHECK OR ADJUST THE PRESET OUTLET TEMPERATURE

The temperature settings will be displayed on the LED display. The preset temperature settings are:

871 series 40°C, 43°C, 50°C, 55°C, 60°C

875 series 40°C, 43°C, 48°C

It is necessary to have the electrical supply to the water heater switched on during stages of checking or

adjusting the preset outlet temperature procedure.

Warning: The removal of the front panel will expose 240 volt wiring. Take care not to touch wiring

terminals. The adjustment must be carried out by a qualified person.

Warning: This procedure will involve the adjustment of dip switches. Adjustment of a dip switch should

only be made with an insulated tool.

To check or adjust the preset outlet temperature:

1. Switch off the electrical supply at the power outlet to the water heater.

2. Remove the screws holding the front panel to the jacket.

3. Gently disengage the front panel and pull forward to remove from the water heater.

4. Switch on the electrical supply at the power outlet to the water heater.

5. Switch DIP SWITCHES 3 and 4 to the on (up) position on the I.C. Board.

The current preset outlet temperature will show on the LED

display.

If the temperature displayed on the LED display is the

desired preset outlet temperature, then proceed to step 7,

as no further adjustment is necessary.

871 series

If the water heater is to be used as a gas booster to a solar

water heater and „60‟ is shown on the display, then proceed

to step 7, as no further adjustment is necessary.

6. Press the MAX button to increase or the MIN button to

decrease the preset outlet temperature setting.

Each press of the MAX or MIN button will increase or

decrease the preset temperature by one increment.

The MAX and MIN buttons are located underneath the DIP

switches.

871 series

The increments are 40 C, 43 C, 50 C, 55 C and 60 C.

Set the temperature to 60°C on an 871 series water heater

if it is installed as a gas booster to a solar water heater.

875 series

The increments are 40 C, 43 C, 48 C.

7. Switch DIP SWITCHES 3 and 4 to the off (down) position.

The temperature display will go blank. The preset outlet

temperature is now set.

8. Switch off the electrical supply at the power outlet to the water heater.

9. Refit the front panel and screws to the water heater.

OFF

(DOWN)

(UP)

OFF

(DOWN)

(UP)

min

button

max

button

dip

switches

L.E.D.

display

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 76

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