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8Status of the appliance

8.1Introduction

Topics covered in this chapter:

Operating modes;

Error conditions;

Service condition.

8.2Operating modes

8.2.3EXTRA

In this mode, one extra period is programmed and activated. In this mode, the OFF orPROG mode is temporarily overruled to fulfil a single period of demand. Once the period has passed, the appliance automatically returns to the previous operating mode. The figure shows the display with the following information:

When running, the appliance has four basic operating modes, namely:

OFF

ON

EXTRA

PROG

8.2.1OFF

In this mode, the frost protection is activated. The figure shows the display with the following information:

line one: the text OFF;

line one: the text EXTRA;

line two: the time, the day and alternately (9.3 "The appliance's heating cycle") T1 and Tnet;

line three: the switch-on time, and the related water temperature setting;

line four: the text PERIOD ACTIVATED.

EXTRA

12:30 Thursday 76ÉC

TH 12:45 Tset 75ÉC

PERIOD ACTIVATED

line two: the time, the day and alternately (9.3 "The appliance's heating cycle") T1 and Tnet.

lines three and four: the text

FROST PROTECTION ACTIVATED.

OFF

13:45 Thursday 6ÉC

FROST PROTECTION ACTIVATED

8.2.2ON

In this mode, the appliance continually responds to the hot water demand. The figure shows the display with the following information:

line one: the text ON;

line two: the time, the day and alternately (9.3 "The appliance's heating cycle") T1 and Tnet.

line three: the programmed water temperature Tset;

line four: blank when the appliance is idle, or depending on the heating cycle (9.3 "The appliance's heating cycle"), displays a text such as

HEAT DEMAND.

ON

13:45 Thursday 67ÉC

Tset 75ÉC

8.2.4PROG

In this mode a preset week program is active, and the appliance responds continually to demand within the time periods set in the week program. There are two distinct situations possible in this mode:

PROG

 

10:00 Monday

76ÉC

MO 11:15 Tset 75ÉC

1.The current time falls within a set time period of the week program.

The figure shows the display with the following information:

-line one: the text PROG;

-line two: the time, the day and T1 and Tnet alternately (9.3 "The appliance's heating cycle");

-line three: the next scheduled switch-off time and the water temperature Tset of the active period;

Instruction manual SGE

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A.O. Smith SGE service manual Status of the appliance, Operating modes Error conditions Service condition