Technical data
128
CTC EcoZenith i550 Pro
For the installer
Före första start
1.
2.
3.
4.
5.
6. Kontrollera att reservvärmetermostaten är i frostskyddsläge. Reservvärmetermostaten
återfinns i kablagets nedre del, bakom fronten. För att ställa reservvärmestermostaten i
frostskyddsläge vrid moturs så långt det går så att mejselspåret står vertikalt (off-läge), vrid
sedan tillbaka medurs tills mejselspåret står i linje med figuren för frostskydd (ca 1/8 varv).
Frostskyddsinställning, ca + 7 °C.
screwdriver slot
24. First start
The CTC EcoZenith I 550 can be started without a room sensor being
installed; the heating will instead be controlled by the heat curve set for the
property. The room sensor can however always be fitted for the alarm LED
function. In this case, deselect the room sensor in the menu
Installer/Define
system
.
24.1 Before first start
1. Check that the system is filled with water, has been bled and has the
correct pressure, and that there are no leaks. Air in the system (poor
circulation) can mean that the heat pump is tripped by its high pressure
protection, for example.
2. Check that all connections are tight.
3. Check that all the valves in the system are correctly connected and set.
4. Check that all electric cables, sensors and circulation pumps are
correctly installed and connected. See the “Electrical installation”
chapter.
5. Check that the unit is correctly fused (fuse panel).
6. Check that the backup heating thermostat is in frost protection mode.
The backup heating thermostat is located in the lower part of the
cabling, behind the front panel. In order to set the backup heating
thermostat in frost protection mode, turn anti-clockwise as far as
possible so that the screw driver slot is vertical (off position), then turn
clockwise until the slot aligns with the frost protection symbol (about
1/8turn). Frost protection setting, about +7 °C
7. Check that any heat pump circuit breaker installed is in the ON position.
Note that when connected in series, the last heat pump must be in
terminated position. I.e., on the last heat pump, dipswitch 2 must be
in the ON position. On the other heat pumps it should be in the OFF
position.
8. See the Installation and Maintenance Manual for the heat pump. If there
is already a boiler in place, check that its temperature is set at normal
boiler temperature, for example, 70 °C.