5
Settings and adjustments
A qualified installer sets the heat pump's basic settings upon installation. The adjustments that may be made
by the end user are described below.
Sometimes no adjustments are needed at all.
Never change control unit settings unless you are aware of what effects the changes may have. Make a note of
the default setting and be aware that some changes may take some time to take effect due to the nature of a
heating system.
5.1
Selecting operating mode
Set the heat pump to the desired operating mode in the menu:
OPERAT. > (* shows current mode) Select
mode by using
or
buttons. Press right button
to confirm choice. Press right button twice
to exit the menu.
OPERAT.
AUTO
OFF
AUX. HEATER
COMPRESSOR
HOT WATER
Operating modes, symbols and descriptions:
▪
OFF: The installation is fully switched off (risk of freezing). This mode is also used to acknowledge and
reset alarms.
▪
AUTO : The heat pump automatically controls the heat pump and auxiliary heater. (Normally recommen-
ded mode.)
▪
COMPRESSOR: In this mode the aux heater is blocked and will never assist. (=e.g. no backup heating in
case of alarms and no anti legionella top up heating of hot water). Therefore this setting is not recom-
mended for use as a permanent operating mode, or when the property is unattended. (Risk of freezing.)
▪
AUX. HEATER: The control system only permits the auxiliary heater to be in operation, can be used in the
event of certain alarms or to provide heating or hot water before the brine circuit is installed.
▪
HOT WATER: In this mode the heat pump only produce hot water. No heat is directed to the heating
system. (Risk of freezing.)
User Guide
Thermia Legend
BWLE01UG0102
Thermia AB
10
