TERMA KTX 3 - KTX 4 Operation and Troubleshooting; KTX 4 Problem Solving Guide


Problem  
Device is plugged in, LCD
display is empty.
Problem with the con-
necon.
Check the power wire
connecon, plug and the
socket.
Device does not heat, E7
or E9 is ashing on the
display panel.
Device signals emergency,
temperature sensor has
been damaged.
Disconnect the device
completely and wait unl
the radiator cools down,
aer that reconnect the
device.
Controller has been incor-
rectly installed on the
heang element.
Check if the heang ele-
ment head is hidden com-
pletely. Turn the screw
o, press the controller
towards the radiator and
twist the screw again.
Device does not heat, E6 is
ashing on the LCD panel.
Device signals emergency,
overheang.
Check if the radiator is
properly lled with the
heang agent.
Device is heang although
it has been turned o with
the buon.
Electronics damage. Disconnect the device
completely and wait unl
the radiator cools down,
aer that reconnect the
device.


buon – turns the device on / o
buon – TIMER programming
Buons and – temperature regulaon or modicaon of TIMER sengs – numeric
sign
icon – HEATING indicator
icon – icon indicang connecon to a transmier
Heang element unit heats the radiator that it is installed in and precisely controls its
temperature at the same me. Buons and are used to regulate temperature whilst
the icon indicates that the radiator is being preheated.
Turning the device on does not mean that it uses the same maximum power for the
whole me it is on. On turning the device on, it operates with the nominal power for
a short period of me in order to heat up the radiator to the set temperature. Aer
that it turns itself on and o periodically, using only as much energy as it is required
to maintain the set temperature of the radiator for current external condions (see:
Actual working me meter).
Construcon of the heang element unit as well as physical characteriscs of the heang
agent cause that the boom pipes (especially the two at the very boom of the radiator)
may have a lower temperature than the remaining parts of the radiator – this is a normal
phenomenon.
KTX 4 controller installed on the SPLIT heang element is the basic conguraon of this
type of heang element unit which allows use of all the basic features of the device (see:
Local mode operaon).
KTX 4 controller can also cooperate with an external wall-mounted transmier (ie. DT-IR
type), which adds addional features to the basic set (see: Remote mode operaon).