CTC EcoEl
44
Installation
Check of indoor sensor connection
◗
Go to the
Installer/Service/Function test menu
.
◗
Step down to
Diode Sensor
and press “OK”.
◗
Go to the
Installer/Service/Function test menu
.
◗
Step down to
Diode Sensor
and press “OK”.
◗
Select “On” using the “increase” button and press “OK”.
Check that the indoor sensor diode comes on. If not, check cables and connection.
◗
Select “Off” using the “decrease” button and press “OK”. If the “OK” diode goes
out, the check is successful.
◗
Return to the normal display by pressing the “step backwards”/“undo” button.
Check of connected sensors
If any sensor is incorrectly connected, text will appear in the display. E.g. “
Alarm sen-
sor out”
. If several sensors are incorrectly connected, the different alarms are displayed
on different rows.
If no alarm is displayed, the sensors are correctly connected.
Note that the indoor sensor alarm function (the diode) cannot be shown in the display
but must be checked as described in the previous section. The current sensor connection
has no alarm, but the current value can be read in the
Operation data
menu.
Electrical connection of heat pump
General
CTC EcoAir and EcoPart heat pumps are supplied with electricity from EcoEl. The fuse sizes
and cables used to connect EcoEl to the electricity system should be dimensioned for both
products.
The 6 conductor cable supplied with the heat pump should be used to connect EcoEl to the
heat pump.
Communication takes place between CTC EcoEl and the CTC heat pumps. Other
makes of heat pump cannot therefore be controlled from EcoEl.
The cable between EcoEl and EcoPart/Air
heat pump carries 400V 3N~ and earth.
A cable for this purpose is supplied with the heat pump. The 6 conductor cable has a
connector at one end which fits the equivalent connector on EcoEl. The other end of
the cable is connected to the heat pump as specified in the heat pump manual.
Note: excess cable is not to be rolled into a coil (can cause overheating). It is to
be cut to the correct length.
Communication
EcoEl and the heat pump communicate with each other (230V~). This take place via
the 6th conductor in the cable between the products.
Servicing the heat pump
The heat pump safety switches fitted before EcoEl are to be switched to the off position
before any service of any kind is carried out.
On starting
Check that all connectors are securely connected, that water is topped up and that the
system is bled. EcoEl must be set to heat pump operation to start. This is set in the
menu Advanced/Settings. Select the row ‘Product EcoEl’ and set to EcoAir (or Eco-
Part).
More on first start: see next section.
