CTC EcoEl
End user information
30
Fault tracing/suitable measures
CTC EcoEl is designed to provide reliable operation and high levels of comfort and in ad-
dition have a long lifetime. Below are a number of suggestions and guidelines which can
be useful in the event of malfunction.
If a fault occurs, you should always contact the installation contractor who installed
your unit. If the contractor believes the malfunction is due to a materials or design fault,
the installation contractor will contact us to check and rectify the fault. Always provide
the product’s production number.
DHW (Domestic hot water
Many want to utilise the heat pump’s low operating costs to the maximum. The electric
cartridge’s temperature setting affects the temperature of the hot water which the heat
pump provides. Lower settings give lower temperatures, but also larger savings. Set the
temperature so that your requirements are met. Start at a low temperature, for example
47°C, and increase gradually if the water is not hot enough.
The heating system
A room sensor, which should always be fitted, ensures that the temperature in the room is
correct and steady. For the sensor to provide the correct signals to the control unit, radia-
tor thermostats should always be fully open in the area where the room sensor is located.
Always adjust the system with all radiator thermostats fully open. The thermostats
can be individually adjusted after a few days in the other rooms.
If you do not achieve the set room temperature, check:
◗
That the radiator system is correctly adjusted and is functioning normally. That
radiator thermostats are open and that the radiators are equally warm all over. Feel
the entire radiator surface. Bleed the radiators. The heat pump’s economical opera-
tion requires that the radiator system functions well, if good savings levels are to be
achieved.
◗
That the heat pump is in operation and no error messages are displayed.
◗
That sufficient electrical power output has been installed. Increase where necessary.
◗
That the products “Max permitted primary flow temperature” is not too low in the
menu Max Primfl.°C.
◗
That “Primary flow (Inclination) temperature at –15°C outdoor temperature” is set
sufficiently high. Increase where necessary. More can be read about this and heating
curves on page 5.
◗
That temperature lowering is not incorrectly set.
◗
That the mixing valve is not in the manual position.
If heating is uneven, check:
◗
That the room sensor position is representative for the whole house.
◗
That radiator thermostats are not affecting the room sensor.
◗
That no secondary heat source/cold source is affecting the room sensor.
◗
That the mixing valve is not in the manual position.
Reset where alarm triggered (red alarm diode flashes)
Reset the alarm by pressing the reset button on the panel. If several alarms are triggered,
these are displayed sequentially. A fault cannot be reset without it first being rectified.
Some alarms are reset automatically if the fault ceases.
!
If you do not have
radiator thermostats
on the upper floor,
you may need to install
these.