Specifications
Control21
General information
Menu
Navigation
The right-hand button on the con trol panel is used to open the desired menu. The left-hand button is used to
return
to the previous men u. The up and down butt ons are used to navigate betw een the parameters of a menu.
A cu rsor
(arrow) on the left-hand side of the display indica tes which menu can be opened.
The up and down buttons
are also used
if you wish to increase or reduce a preset value.
Display
of
curr
ent
operating
mode
During normal operation, the following information will be displayed:
• Desired (preset) room temperature
•
Whether there is a heating demand or not. If there is, there will also be symbols
telling which heat source is working– heat pump or auxiliary heater
or
both (see ”Symbols” on page 6).
•
Which
operating
mode
has
been
selected
In
addition
to
this,
the
following
messages
may
be
displayed:
•
POWER SUPPLY
The
compr
essor
in
the
heat
pump
is
running
in
the
wr
ong
dir
ection,
which
means
that
heat
is
pr
oduced
by
the
auxiliary
heater
only
(see
”Alarm”
on
page
38).
ROOM 20
o
C
OPER. AUTO