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

Page: 84 / 121

Instruction manual SGS 81
is
12 Service program
12.1 Introduction
The service program is used by the installation
engineer or service and maintenance engineer for:
•
Displaying the water heater history
• Displaying the error history
• Displaying the water heater history
• Display the selected water heater
• Switching on the solar pump
• Setting the service interval
• Service mode
• Setting legionella prevention
• Solar heating system configuration
• Setting the central heating configuration
These sub-menus are briefly described in the
following paragraphs. If you are not generally familiar
with the use of the displays and menus, first read the
relevant chapter (7 "The control panel").
Note
The notation convention for the service menu is
identical to that of the main menu (11.2 "Notation
convention for menu-related instructions"). The
difference is, you use
to bring up the service
program, instead of which brings up the main
menu.
12.2 Setting the hysteresis
Call up the menu to set the hysteresis as follows:
:
HYSTERESIS DOWN
Please refer to the table (3.4.2 "General and electrical
specifications") for the regulation interval and settings
for each water heater.
12.3 Displaying the error history
Display the error history as follows:
•
:
ERROR HISTORY
The controller will display an overview of "Blocking
errors" and "Lock out errors". In both cases, note that
the controller reserves 15 lines for the last 15 error
messages. If there are fewer than 15 error messages,
an ellipsis (...) is displayed. The display first shows the
"Blocking errors". When
is pressed, the
"Lock out errors" are then displayed.
The figure shows an example of "Blocking errors". In
this case, the text
ERROR HISTORY
is followed by
(B)
.
The figure shows an example of "Lock out errors". In
this case, the text
ERROR HISTORY
is followed by
(L)
.
Note
For an overview of all errors and the possible
causes, please refer to the relevant
chapter (13 "Errors").
12.4 Displaying the water heater history
The water heater history sub-menu is used to display
the burning hours, the number of ignitions, the number
of flame errors and the number of ignition errors.
SERVICE MENU
»HYSTERESIS
^ ERROR HISTORY
È APPLIANCE HISTORY
SELECT APPLIANCE
PUMP RELAY
SERVICE INTERVAL
SERVICE OPERATION
ANTI LEGIONELLA
SETTINGS SOLAR
SETTINGS HEATING
HYSTERESIS DOWN »3ÉC
ERROR HISTORY(B)
S04 SENSOR ERROR
F06 IONIZATION
È CO2 50 HZ ERROR
ERROR HISTORY(L)
F02 FAN
F07 FLAME ERROR
È ...