Electrical Connection - TdA ZEWMBAD series Technisches Handbuch, Inbetriebnahme Und Betriebsweise

ZWEMBAD SERIES · AIR/WATER SYSTEM
If it is not possible to install the feeder 25cm below the water discharge of the heat pump a siphon should be installed. For
additional security, a check valve should also be installed to prevent the chemical product from returning to the pump
when water circulation is interrupted.
The unit is provided with two D-50 PVC unions.
There must be water flowing through the hydraulic connections when the unit is running.
Never place concentrated chemicals in the swimming pool skimmers.
A full-flow shut-off valve should be installed on each of the hydraulic elements in the equipment, so that each of these may
be isolated if needed (for filter cleaning, repairs, substitutions, etc.) without the need to drain the circuit.
Anti-vibration dampers should be installed in the inlet and outlet of the machine, in order to avoid vibrations which may
cause cracks or breakage in the hydraulic connections.
In order to avoid possible breakage, do not force the PVC tubes connected to the water supply.

4.3 Electrical Connection

· The power supply for the heat pump must come, preferably, from a sole circuit provided with standard-issue
protection components (see above: protection by a 30 mA differential) and a magnetic circuit breaker.
· The electrical installation must be carried out by a qualified professional (an electrician, for example) according to
the applicable laws and regulations of the target country.
· The heat pump circuit must be linked to a safety earth circuit levelled to the terminal block.
· The cables must be correctly installed so that they do not cause interferences (items in the lead boards).
· The heat pump may be connected to an earthed 230/2/50Hz or 400/3/50Hz general-purpose power supply.
· Table 1 shows some indicative sections, which must be verified and adapted according to the installation needs
and conditions.
· All wiring should comply with local and national electric codes and should not be prone to overheating and
subsequent voltage failures. As a guide, you can use the general power supply table for lengths of less than 25
metres.
· The acceptable tolerance to voltage fluctuation is +/- 10% during operation.
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Figure 2: Electrical connections.
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