A.O. Smith SGS - 100, Installation, User And Service Manual

Page: 86 / 121

Instruction manual SGS 83
is
7. Press twice to return to the
MENU
menu via the
SERVICE OPERATION
menu.
12.8 Setting legionella prevention
To prevent infection with legionella bacteria, the water
heater 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.
12.8.1 Switching legionella prevention on
and off
To switch legionella prevention on or off, select:
•
:
ANTI LEGIONELLA
• Select
NO
to switch legionella prevention off.
• Select
YES
to switch legionella prevention on. The
following screen appears:
• Select
START
to activate the period currently
displayed.
The following display appears. This display
indicates that legionella prevention is switched on.
12.8.2 Changing legionella prevention
start time
If you wish to change the start time, select:
:
ANTI LEGIONELLA
|
YES
|
Change
The following display appears.
• Now set the day and time the same way as
described for setting an extra period in the week
menu (11.10.1 "Programming an extra period"). In
this case however, the pump will be automatically
started.
• Select
START
to start.
12.9 Solar heating system configuration
Use the solar heating system settings menu to reach
the menus shown here:
12.9.1 Setting the drain-back tank
Use this menu to specify whether the solar heating
system is equipped with a drain-back tank for the
heating fluid. Call up the menu as follows:
•
:
SETTINGS SOLAR
|
DRAIN BACK
The default is
NO
.
Note
During commissioning, it is important to check
whether this setting corresponds with the
configuration of the solar heating system.
12.9.2 Switching on the solar pump
This menu lets you switch on the pump in the solar
heating system manually. Call up this menu as follows:
•
:
SETTINGS SOLAR
|
TEST SOLAR PUMP
The following display appears.
When
START
is selected, the pump will start to run for
two minutes. Once the 2 minutes have elapsed, the
pump stops running again.
MENU
»OFF
^ ON
È
WEEK PROGRAM
EXTRA PERIOD
SETTINGS
ANTI LEGIONELLA
»YES
NO
ON MO 02:00 LEG
OFF MO 03:00
Tset 65ÉC
»START Change
LEG Ê Ê Ê
02:45 Monday 60ÉC
MO 03:00 Tset 65ÉC
RUNNING
ON ÈMO 02:00 LEG
OFF MO 03:00
Tset 65ÉC
START
a
SETTINGS SOLAR
»DRAIN BACK
^ TEST SOLAR PUMP
È SOLAR DIFFERENCE
Q/T SENSOR
SOLAR LIMIT
CONTRIBUTION
TEMPERATURES
DRAIN BACK
YES
»NO
TEST SOLAR PUMP
»START