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MAIN MENU settings
US/CA
6.5 Solar settings
Main menu: Solar
Use this menu if you want to limit the tank
temperature or optimize the specified domestic
hot water temperature and specified supply
temperatures based on the available solar energy
in your geographical region.
Limiting tank temperature(s)
To store as much solar energy as possible, a high
tank temperature is required.
Limiting the tank temperature prevents
overheating of the domestic hot water. The
temperature setting is transmitted by the ISM
module during commissioning.
•
T2: Max. temperature solar tank
: Set tank
temperature > 140 °F (> 60 °C) with domestic
hot water tanks only if hot water outlet
temperature is limited by a thermostatic
mixing valve.
When using solar buffer tanks, e.g. in space
heating (system 2),
T2: Max. solar tank
temperature
can be set higher.
•
TB: Max. temperature tank B
: This parameter
is only active with a solar recharge system
(solar option B). Tank temperature > 140 °F
(> 60 °C) only if hot water outlet temperature
is limited by thermostatic DHW mixer unit.
•
TC: Max. temperature tank C
: This parameter
is only active with a solar high/low priority
system (solar option C)
1)
or with space
heating. Tank temperature > 140 °F (> 60 °C)
for DHW tanks only if hot water outlet
temperature is limited by thermostatic DHW
mixer unit.
This mechanical temperature limitation is not
required if the tank C is a buffer tank. In this
case,
TC: Max. temperature tank C
can also
be set higher.
For menu structure and adjustment ranges
Æ
page 38.
WARNING:
Danger of scalding if
the tank temperature is higher than
140 °F (60 °C).
B
If the tank temperature limit is
set > 140 °F (> 60 °C) install a
thermostatic mixing valve in the
hot water supply.
B
Set the domestic hot water
mixer unit to 140 °F max.
(60 °C).
1) For an overview of the possible solar
systems, see the installation instructions
for the ISM module.
