CTC Union EcoPart 425-435, Руководство по установке и обслуживанию

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CTC EcoPart i425-i435 Pro
General Information
4. Electrical installation
The installation and heat pump connection must be done by an authorised
electrician. All wiring must be installed according to valid requirements.
• The CTC EcoPart 3 x 400 V must be connected to 400 V 3N~ 50 Hz
and protective earth.
• The CTC EcoPart 1 x 230 V must be connected to 230 V 1N~ 50 Hz
and protective earth.
The minimum group fuse size is indicated by the Rated current under
Technical data.
Use the cable provided to connect to the power supply. The product is
already wired inside.
Safety switch
The installation should be preceded by a omnipolar safety switch
(Category III), which ensures disconnection from all electric power sources.
4.1 Alarm output
The EcoPart is provided with a potential-free alarm output which is activated
if any alarm is active in the heat pump. This output may be connected to a
maximum load of 1 A 250 V AC. An external fuse should also be used. Cable
approved for 230 V AC must be used for connecting this output, irrespective
of the load that is connected. For connection information, see the wiring
diagram.
Detailed illustration from wiring diagram
4.2 Groundwater heating
Groundwater, too, can be used as a heat source for CTC's heat pumps.
The groundwater is pumped up to an intermediate heat exchanger that
transfers the energy to the brine liquid. It is important that an intermediate
heat exchanger is installed in the system. The intermediate heat exchanger
prevents the product evaporator from becoming damaged due to deposits
from groundwater particles and minerals, which could otherwise involve
expensive work on the product's refrigerant system. Water requirements
analysis should always be undertaken for intermediary heat exchangers.
Local regulations and permit requirements must be taken into account. The
return water is discharged elsewhere, to a drilled return flow well or similar.
The brine pump and groundwater pump must be connected to run
simultaneously in order to avoid risk of freezing.
Also pay attention to the intermediary heat exchanger supplier's instructions.