23
Ecotower
COSMOGAS
5 - OPERATION
Figura 5-11 - ECOTOWER Wiring diagram with double heating/cooling circuit, DHW, buffer
tank and boiler
5.6.1 - Configuration for double heating/
cooling circuit, DHW, a buffer tank and
a boiler
After creating the hydraulic system as shown in Figure 5-10
and the electrical system as shown in Figure 5-11, configure
the appliance as follows:
1.- In the home page of the display, press the “
Settings”
icon
(“H” of Figure 8-1);
2.- Enter the “USER” menù (section 8.2.8) and select
“Permission level”;
3.- Enter the password “87654321” for the Installer level and
press OK;
4.- Go back and enter the “WORKING MODE” menù (section
8.2.9);
5.- Using the green tick, enable the unit to produce domestic hot
water, heating and/or cooling;
6.- Go to second page of the menù and set
“Heating / cooling
switch” to “External signal control”. Switching takes place
only via remote command “12” for cooling or “13” for heating
(Figure 6-22);
7.- Exit the “WORKING MODE” menù and select “WATER
PUMPS”;
8.- To configure the pump outputs so that the circuits work
according to the status of inputs “12”, “13” and “14” (Figure
6-22), it is necessary:
a.- Select “Working mode of circulation pump P0” and set
it to “OFF with compr.”;
b.- Go to the next page and put the check mark to “Buffer
tank”, enabling it;
c.- Put the check mark in “P1 for heating operation
”
and, if
previously enabled, also enable “P1 for cooling operation”;
d.- Select “P1 with high temp. demand”;
e.- Select “P2 for heating operation” e se necessita metterla
anche a “P2 for cooling operation”.
9.- Exit the “WATER PUMPS” menù and select “DHW”;
10.- Set the DHW setpoint temperature in “ Setpoint DHW”
parameter;
11.- Exit this menù and select “ZONE 1” menù:
a.- If the cooling function is enabled, select “Set temp. for
cooling (fix flow water temperature)” and set the setpoint
temperature;
b.- If you want to adjust the heating temperature via outdoor
reset, select “Heating (HC1)” and complete the following
parameters as described in section 8.2.1;
c.- If the “Heating (HC1)” has not been selected, set the
appropriate set point temperature on the “Set temp. for
heating (fix flow water temperature)”;
12.- Exit this menù and select “ZONE 2”:
a.- Select “Zone 2”, set the “Set temp. for cooling (fix flow
water temperature)” e “Set temp. for heating (fix flow
water temperature)”;
b.- Select “Mixing valve”;
c.- Remove the check from the “Heating curve 2 (HC2)” line
if you want the regulation at fixed point, or add the check
and complete the following outdoor reset parameters as
described in section 8.2.1;
13.- Exit this menù and select “BACK-UP”;
14.- Tick on “Backup heating sources for sanitary hot water”
so that the heat pump can call electrical heater “20” if it is
unable to bring the domestic hot water tank to the required
temperature within a certain number of minutes
15.- Select “Priority for backup heating sources (HWTBH)”
and set it to “Higher than AH” (in this way the electrical
heater “40” of Figure 5-11 have priority, which enables the
boiler to start);
16.- In the same way and with the same criterion, it is possible
to choose the integration of alternative sources to heating;
17.- Exit this menù and select “ ELECTRIC LOCK”;
18.- Enable the parameter “Heating ECO operation”;
19.- Access the boiler (Mydens B/Novadens B/Q30B), disable
the outdoor reset and set the heating to a set point greater
than or equal to that of the heat pump as set in the previous
step in point 11.
