13
Ecotower
COSMOGAS
5 - OPERATION
5.1 - Intended use and function
This product is a split heat pump, consisting of:
-STM: a reversible refrigerating outdoor unit, with inverter
controller, to be combined with the indoor unit by means of
refrigerant and electrical connections;
-GB: hydronic module for indoor installation, central heating/
cooling and DHW production with buffer tank.
Perform the adaptation between appliance and system
considering the available head values in Figure 5-1.
Temperature adjustments for heating, cooling and domestic
hot water are carried out by following the appropriate
procedures described in sections 8.2.1,8.2.2 and 8.2.3. The
appliances can be connected to a room thermostat for heating
regulation. Or, to refine the quality of the heating service, it is
possible to use an outdoor temperature sensor (outdoor reset)
to automatically adjust the supply temperature according to
the outdoor temperature (already present on the STM unit).
The air conditioner has a compressor that modulates the
speed according to the heat output. However, the maximum
speed is only guaranteed for an outdoor temperature below
14 ° C in heating and between 28 ° C and 41 ° C in cooling.
This appliance must be connected to a heating / cooling
system and to a domestic hot water net system, compatibly
with the characteristics, performance and power of the
appliance itself.
Before installation, it is necessary to thoroughly wash
the hydronic system, in order to remove any residues or
impurities that could compromise the proper functioning
of the appliance.
GB unit can be installed indoor.
This appliance must be installed in a place such that any
water leaks coming from it, from the connections between
the pipes or from the safety valve drain, cannot cause
damage to underlying materials or things.
Check in Figures 6-2 and 6-3 the minimum clearances of
installation and future maintenance.
WARNING !!! Do not subject the indoor unit to
temperatures below 0.5 ° C and above 50 ° C. It can be
exposed to temperatures as low as -10 ° C (10 ° C below
zero) if the heating circuit is protected with suitable
antifreeze and electrically powered in such a way as
to allow the electrical heater to intervene (item “13” in
Figure 4-1). These protections only cover the device and
not the system.
Figure 5-1 - Water flow and available head of
the heating/cooling system
5.2 - Available head to the heating/cooling
system
The head available at the appliance connections is shown in
the table in Figure 5-1.
When sizing the system, the installer must take into account
these available head values to run the correct water flow.
Model
Minimum
water flow
Available head
l/h
kPa
6
1044
61
9
1548
63
13
2196
53
