ECOFOREST ecoGEO HP Serie Manuel D'installation page 40

5. Electrical system

Before performing any operation on the electrical panel, disconnect the power supply.
DANGER!
5.1. General instructions
The locations of the main electrical panel components are shown below.
Heat pump power
supply
Main switch
Distributor 24Vac
Transformer 24 Vac
Controller fuse
Controller pCO5+
pLAN port
ModBus BMS2 port
Several installation devices are controlled from the heat pump electrical panel. Some are internal and other are installed externally.
The internal components are connected to the electrical panel in the factory. Depending on the installation that the heat pump is
going to be connected to, in addition to the power supply, it may be necessary to connect various temperature probes (analogue
inputs AIxx), control signals from thermostats or other external equipment (digital inputs DIxx) on/off switching of pumps and/or
valves (digital outputs DOxx) or regulation of pumps and/or valves (analogue outputs AOxx).
Analogue inputs (AIxx)
These terminals are used to connect external temperature probes. Only passive NTC temperature probes can be connected, so
cable connection polarity is not important.
If necessary, use extension cables with a maximum length of 50 m and a minimum diameter of 0.75 mm
120 m) it is recommended to use cable with a section of 1.5 mm
All manuals and user guides at all-guides.com
Figure 1.13. Location of the components in the electrical panel.
2
.
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Installer manual ecoGEO HP
DOxx Block I
Digital outputs to
relay
Controller
expansion modules
AOxx
Analogue outputs
DIxx
Digital inputs
AIxx
Analogue inputs
Protections
2
. For greater lengths (up to