AU12 Installation Manual and Technical Service
33
EN
4.4.
Wiring dimensions
Table 4.4 shows all the information needed to calculate the necessary number of cables and their sizes. This specific section is a
guide, since the wiring must be calculated according to the electrical code of the region where the equipment is installed.
Remember that the various signals do not interfere with each other, so all the cables can be placed together, even inside the same
cable hose.
AU12 Aerothermal
Unit
ecoGEO B/C
heat pump
Function
Type
Number
of
wires
Minimum
diameter
Aerothe
rmal
(A and
B)
Hybrid
(C)
Up to
100 m
Up to
200 m
PE/N/L1
DO16
Fan power supply
L/N/PE
230V 50Hz
3
1 mm
2
1.5 mm
2
3-way valve:
aerothermal bypass
DO16
Electrical power
and signal
L/N/PE
230V 50Hz
4
According to
valve type
X
3-way valve:
geothermal bypass
DO17
Electrical power
and signal
L/N/PE
230V 50Hz
4
According to
valve type
X
GND/E1
AO3
Fan speed control
0-10Vdc
2
1 mm
2
1.5 mm
2
Air Unit outlet
temperature probe
AI12
Temperature
probe
NTC
10K@25ºC
2
1 mm
2
1.5 mm
2
Drain heater
DO6
Electrical power
L/N/PE
230V 50Hz
3
Depending on the
heater
Optional
Table 4.4.
Wiring dimensions.
5.
Control settings
The AU12 aerothermal units are fully controlled from the ecoGEO B/C heat pumps. The settings for this control are found in the
technical service manual of the ecoGEO heat pumps. However, the screens of the brine system are explained in more detail below.
5.1.
Configuration of the installer's menu
Access the installer's menu by simultaneously pressing
. Afterwards, enter access password PW1. Access
configuration/brine:
Brine
1.
Used to select the type of brine system. Select AEROTHERMAL or HYBRID, depending
on the installation required.
A.
GEOTHERMAL: System with vertical or horizontal geothermal collector.
B.
AEROTHERMAL: System with brine via aerothermal units. The variable speed
aerothermal units and defrost program controls are enabled.
C.
HYBRID: Brine systems that combine a geothermal collector and an aerothermal
collector. The controls for the hybrid system, variable speed aerothermal units
and defrost programs are enabled.
Installer menu
2/6
a.Change language
b.Configuration
c.Manual test
Configuration
2/7
a.Heat pump model
b.Sources
c.Services setut
2/7
Source
Type:
Hybrid
