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10 Shutting down

10.1Introduction

This chapter describes:

Shut the appliance down for a brief period ("OFF mode");

Electrically isolating the appliance;

Shutting the appliance down for a long period.

10.2Shut the appliance down for a brief period ("OFF mode")

To shut the appliance down for a brief period, you must activate the frost protection.

You can use the frost protection to prevent water freezing in the appliance.

Activate the frost protection as follows:

1.Press the button to select the main menu.

2.Use and to position the cursor in front of OFF.

Confirm with .

OFF

13:45 Thursday 6ÉC

FROST PROTECTION ACTIVATED

The frost protection cuts in if the water temperature drops below 5°C. The text FROST will then appear on line one of the display. The appliance heats the water to 20°C (Tset) and drops back to the OFF mode.

Note

These values of 5°C and 20°C cannot be adjusted.

4.Wait until the fan has stopped. The symbol is then dimmed.

5.Switch the appliance OFF (position 0) using the ON/OFF switch on the control panel.

6.Isolate the appliance from the power supply by setting the isolator between the appliance and the mains power supply to position 0.

10.4Shutting the appliance down for a long period

Drain the appliance if you are shutting it down for a long period. Proceed as follows:

1.Isolate the appliance from the power

supply (10.3 "Electrically isolating the appliance").

2.Shut off the gas supply.

3.Close the stop valve in the hot water pipe.

4.Open the drain valve

5.Bleed the appliance (or installation) so that it drains completely.

10.3 Electrically isolating the appliance

The appliance should only be isolated from mains power in the correct way. The correct procedure is as follows:

1.Activate the MENU with .

2.Position the cursor in front of OFF.

3.Confirm OFF with .

MENU »OFF ^ ON

È WEEK PROGRAM

Caution

Failure to wait until the fan stops purging can cause damage to the appliance.

Instruction manual SGE

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Image 63
A.O. Smith SGE Shutting down, Shut the appliance down for a brief period OFF mode, Electrically isolating the appliance