Outside Temperature Probe; External Storage Systems; External Production Equipment; Dg1 - Sg4 Outlet Units - GeoSmart NETZERO BW Manuel D'installation

5.5. Outside temperature probe

The outside temperature probe, supplied with the heat pump, has to be installed for the heat pump to work properly. Follow the
instructions below to install it.
▪
Install the outside probe in a well ventilated area, but protected from wind and rain.
▪
Do not install the outside probe at a distance of less than 1 m from windows or doors to avoid the effect of possible currents
of warm air.
▪
Use a shielded 2-pole cable to prevent interferences.
Outside temperature probe
Follow the recommendations below to connect the outside temperature probe to the heat pump.
▪
Use a three-pole, shielded AWG 20-22 cable for the connection. You also need a two-pole cable for 24Vac power supply.
▪
Connect the outside temperature sensor in series for installations with bus terminals in the network. The maximum length of
the circuit assembly should not exceed 500 metres. For connection networks with more than two thTs, it is necessary to
install a 120 Ohm heater between Rx+/Tx+ and Rx-/Tx- in the first and last terminal to prevent possible communication
problems.
▪
Check the outside sensor installer manual.
NOTE

5.6. External storage systems

These can be used to control DHW storage, heating and cooling temperatures using temperature probes.
Description
DHW inter-accumulator
Heating buffer storage tank
Cooling buffer storage tank

5.7. External production equipment

These are used to control production equipment handling of the various services, such as bypass valves or circulatory pumps.
Description
Heating / cooling consumption
Active cooling production
Passive cooling production
Pool production
DHW production
DHW Recirculation
Ground-water valve regulation
5.8. DG1 – SG4 Outlet Units
The heat pump can control a direct outlet unit (DG1) and three outlet units with mixture (SG2, SG3 and SG4). Unit activation can be
controlled according to heating or cooling demand. In addition, the units with mixture can measure the unit's outlet temperature
and generate a regulation signal for the 3-way modulating valve.
GEOSMART ENERGY
Description
Table 5.2. Outside temperature probe connection terminals.
Analogue input
Analogue input
Analogue input
Table 5.3. Connection terminals for outlet units.
Signal
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output
Analogue output
Table 5.4. Auxiliary equipment connection terminals.
Signal
Modbus RS485
Signal Type
NTC 10K 25ºC Probe
NTC 10K 25ºC Probe
NTC 10K 25ºC Probe
Type
Activation 230Vac / 2A maximum
Activation 230Vac / 2A maximum
Activation 24Vac / 1A maximum
Activation 24Vac / 2A maximum
Activation 24Vac / 2A maximum
Activation 230Vac / 2A maximum
Valve regulation 0 – 10Vdc
28
Installer manual NETZERO
Connector
FBUS2
Connector
AI10
AI15
AI16
Connector
DO12
DO13
DO1
DO2
DO3
DO4
AO6