Operating instructions

COMMISSIONING

OUTLET TEMPERATURE COMPENSATION ADJUSTMENT – 886 SERIES

The maximum outlet temperature of an 886 series water heater may be adjusted to compensate for

temperature losses in the pipe work between the water heater outlet and sanitary fixtures.

Warnings

• After adjustment the water temperature MUST NOT exceed 50°C from the first tap in the hot water pipe

work after the water heater used for personal hygiene purposes, such as in a bathroom or ensuite.

• If there is a tap, such as a kitchen or laundry tap, in the hot water pipe work between the water heater

and the first tap used for personal hygiene purposes, then it is possible for a water temperature to be

delivered from that tap of up to 3°C higher than the setting shown on the controller.

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

temperature compensation adjustment procedure.

Warnings

• 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.

• This procedure will involve the adjustment of dip switches. Adjustment of a dip switch should only be

made with an insulated tool.

This procedure cannot be conducted with a temperature

controller connected to the water heater. Any temperature

controller(s) connected to the water heater must be

disconnected prior to the commencement of this procedure.

Disconnecting a Temperature Controller(s)

To disconnect the temperature controller(s):

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

water heater.

2. Unscrew and gently remove the electrical cover from the

underside of the water heater.

3. Loosen the terminal screws to release the cables.

4. Withdraw the cables from the terminals and cable holder

notches, ensuring they are well clear of the terminals.

Note: The preset outlet temperature setting of this water

heater must be set at 50°C prior to the commencement of

this procedure. Refer to “To Check or Adjust the Outlet

Temperature Setting” on page 67.

Outlet Temperature Adjustment

To adjust the outlet temperature:

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

2. Locate the first hot tap in the hot water pipe work after the water heater used for personal hygiene

purposes.

3. Turn on the hot tap.

4. Using a thermometer, measure the temperature of the water from the tap, until the temperature stops

increasing.

If the water temperature is below 50°C the maximum outlet temperature of the water heater can be

adjusted upwards.