A.O. Smith 30 - Manual (Page 77)

Instruction manual SGS 77
is
12.8.1 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
The first time the appliance is started, it is
necessary to check whether this setting corresponds
with the configuration of the solar heating system.
12.8.2 Setting the heating fluid type in the
solar heating system
Use this menu to specify the type of heating fluid used
to fill the solar heating system
(2.6 "Protection for the
solar heating system") . Call up the menu as follows:
• : SETTINGS SOLAR | TYPE OF FLUID
You can select from Glycol and Water. The default
is Glycol.
Note
The first time the appliance is started, it is
necessary to check whether this setting corresponds
with the configuration of the solar heating system.
Note
The setting Water is currently not possible
12.8.3 Setting threshold temperature of
pump in solar heating system
The pump of the solar heating system is switched on
when the difference
(9.3 "The appliance's heating
cycle") between the temperature at the top of the solar
collector (sensor S
1
) and that in the appliance (sensor
S
2
) exceeds a certain value. This value can be set to
between 5 and 20 °C. Call up this menu as follows:
•
: SETTINGS SOLAR | DELTA T SOLAR
The default value is 10 °C.
12.8.4 Setting the solar limit temperature
The solar limit temperature is the maximum water
temperature obtained in the appliance via the solar
heating system (measured by sensor T
1
).
This value can be set between 65 ... 80 °C. The default
value is 65 °C.
If you set the solar limit higher than the set
point
(11.4 "Setting the water temperature") , then
once the set point is reached, the solar pump will be
started to heat the water further. However, this only
makes sense if the solar heating system is actually
generating heat. This makes use of the difference
between the temperature at the top of the solar
collector (S
1
) and that in the appliance (measured by
S
2
). This value is also adjustable (12.8.3 "Setting
threshold temperature of pump in solar heating
system")
.
Call up the menu for the solar limit as follows:
•
: SETTINGS SOLAR | SOLAR LIMIT
12.8.5 Setting the solar difference
The solar difference is a value that influences how the
heating cycle of the appliance proceeds. Call up the
menu as follows:
•
: SETTINGS SOLAR |
SOLAR DIFFERENCE
12.8.6 Setting the QT sensor yes/no
The energy contribution of the solar heating system
can be calculated
(12.8.7 "Reading the energy
contribution of the solar heating system") with the aid
of the Q/T sensor. This calculation is only possible if
your installation is equipped with such a Q/T sensor. If
this is the case, then you must set this value to YES,
otherwise NO. Call up the applicable menu as follows:
DRAIN BACK
YES
»NO
TYPE OF FLUID
»Glycol
Water
DELTA T SOLAR
10ÉC
SOLAR LIMIT
65ÉC
SOLAR DIFFERENCE
5ÉC
Appliance Default Range
28 7 °C. 0 ... 8 °C.
30 2 °C. 0 ... 8 °C.
50 2 °C. 0 ... 8 °C.
30 2 °C. 0 ... 8 °C.