GeoSmart NETZERO BW B B, Technical & Service Manual, Page: 21 / 64

Installer manual NETZERO
GEOSMART ENERGY 21
EN
Hybrid system
1. Used to adjust the minimum power percentage absorbed by each collector. If the
power percentage absorbed by one of the collectors decreases below the established
limit, it is disabled.
2. Used to set a minimum input temperature for the geothermal collector; below this
temperature, the geothermal collector will be disabled. This option is useful for
disabling horizontal source systems when they are blocked, thereby assisting in their
recovery.
Note: This screen is only available for hybrid source systems.
2.4. Configuration of the heating system
Heating
1. Used to enable the heating service.
2. Used to select the type of connection to the heat emission system:
A.
DIRECT: Heat production is enabled by requests coming from indoor terminals.
Activation of the outlet units for heating is not allowed when another service is
being produced (cooling / DHW / pool).
B. BUFFER: Heating production is enabled by the temperature probe of the buffer
storage tank. Activation of the outlet units for heating is allowed when another
service is being produced (cooling / DHW / pool).
C. COMBI: Heating production is enabled by the temperature probe of the buffer
storage tank. Activation of outlet units for heating is not allowed when another
DHW is being produced.
3. Used to enable use of the heat pump to produce heat.
Heating units
1. Used to enable the outlet units in heating mode.
2. Used to select the modulating valve control logic of the combined outlet units.
Note: The modulating valve control logic must be the same in both heating and cooling
mode. If it is changed for one service, it will be changed automatically for the other.
Heat emission system
1. Used to select the type of heat emission system used in each unit. This selection affects
the shape of the heating curve used.
Note: Different emission systems can be used for heating and cooling in a single outlet
unit.
Heating relay thermostats
1. Used to select the type of logic used in each of the digital inputs of the outlet units in
heating mode.
A.
NO: Contact closed to activate the request.
B. NC: Contact open to activate the request.
2. Shows the connection terminal of each digital input (DIxx).
Hybrid system
Sources
%min air: 20%
%min ground: 20%
Geothermal protection
minimumT: 12.0 ºC
Installer menu 2/7
a.Change language
b.Configuration
c.Information
Configuration 3/7
b.Sources
c.Services setup
d.Auxiliary systems
Services setup 1/5
a.Heating
b.Cooling
c.DHW
Heating
Enable:
Connect. type: ---
Production pump:
Heating groups
DG1:
SG2:
Direct 0-10Vdc
SG3: Reverse 10-0Vdc
SG4: Direct 0-10Vdc
SG5: Direct 0-10Vdc
Heat emission system
DG1: Heating floor
SG2: Heating floor
SG3: Fancoils
SG4: Radiators
SG5: Heating floor
Heat.relay thermostats
DG1: NO-DI5
SG2: NO-DI7
SG3: NO-DI9
SG4: NC-DI11
SG5: NC-DI13