A.O. Smith SGE service manual Display the selected appliance, Switching the pump on or off

12 Service program

APPLIANCE HISTORY BURNINGHOURS 000410 ^IGNITIONS 001000 ÈFLAME ERRORS 000021

IGNIT ERROR 000013

12.5 Display the selected appliance

Call up the menu for displaying the appliance selection as follows:

•: SELECT APPLIANCE

The appliance number can be found on the rating plate.

The appliance selection has been correctly preset in the factory.

SELECT APPLIANCE »5934

^8576 È 3379

6527

....

12.6 Switching the pump on or off

If a program-controlled pump is

installed (3.11.6 "Connecting a program-controlled pump"), it can be switched ON or OFF as follows:

•: PUMP RELAY

The standard setting for the pump relay is OFF.

PUMP RELAY »ON

OFF

If the mode WEEK PROGRAM or EXTRA PERIOD is active, then the setting for mode WEEK PROGRAM or EXTRA PERIOD has priority over the ON/OFF selection for the pump relay in the service menu.

Example

One of the week program periods is currently active. During this period, the pump relay setting is OFF. If the pump relay is set ON in the service menu, the pump will nonetheless remain OFF. The pump will only switch ON once the week program period has ended.

12.7 Setting the service interval

To aid servicing, the electronic controller includes a service interval which is used to set the frequency of maintenance interval (14.2 "Determining service interval") by the service and maintenance engineer, based on the number of burning hours.

is

The service interval is based on the number of burning hours. This can be set to 500, 1000 and 1500 hours. The standard setting for number of hours is 500. Once the preset number of hours is reached, a message (8.4 "Service condition"). to this effect will appear. Adjust the service interval via:

•: SERVICE INTERVAL

SERVICE INTERVAL

»500

^1000 BURNING HOURS È 1500

12.8 Setting legionella prevention

To prevent infection with legionella bacteria, the appliance heats the water to 65 °C once per week, for 1 hour. This period is adjustable. By default, this period is set to Monday from 02:00 to 03:00 hours.

12.8.1Switching legionella prevention on and off

To switch legionella prevention on or off, select:

•: ANTI LEGIONELLA

ANTI LEGIONELLA »YES

NO

•Select NO to switch legionella prevention off.

•Select YES to switch legionella prevention on. The following display appears:

ON MO 02:00 LEG OFF MO 03:00 Tset 65ÉC

»START CHANGE

•Select START to activate the period currently displayed.

The following display appears. This display indicates that legionella prevention is switched on.

a

LEG Ê Ê Ê Ê

02:45 Monday 60ÉC

MO 03:00 Tset 65ÉC

RUNNING

12.8.2Changing legionella prevention start time

If you wish to change the start time, select:

: ANTI LEGIONELLA YES CHANGE

The following display appears.

ON ÈMO 02:00 LEG

OFF MO 03:00

Tset 65 o C

START

74 Instruction manual SGE