Astralpool 27831 Manual De Instalación Y Mantenimiento página 4

2. ASSEMBLING INSTRUCTIONS
Please install it preferably below water level in vertical or horizontal position.
When installed above water level do it in such a way to avoid water discharge from the heater.
NOTE: This equipment is provided witch special clamps for wall or soil subjection.
3. ELECTRICAL CONNECTIONS
It is recommended to install, previous to the heater, a differential switch (0,03A) and the fuses corresponding
to each power.
Cables should comply H07 RNF standards for each different power.
The cross section of the cables should comply the DIN VDE 0100 standard.
Very important:
It is very important the need of a contactor for the proper installation of the heat exchanger. In order to
choose the appropriated contactor, it must be considered the following values:
To connect the heater proceed as follow:
400 V 3 N~
W A
3 kW 4 A
6 kW 9 A
9 kW 13 A
12 kW 17 A
18 kW 26 A
4. START-UP AND OPERATION
After electric and hydraulic connections follow the indications for first operation:
Set the thermostat at its lowest temperature.
•
Turn on the hydraulic circuit pump and make sure there is no air left in your installation.
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Switch on the differential.
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Set the thermostat to the desired temperature.
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5. MAINTENANCE
Externally the only necessary maintenance is to wipe water excess or ferruginous particles that could lead to
more extensive rusting.
At winter time, when the heater has been installed outdoor and the risk of freezing exists, it is necessary to
remove the flow switch from its housing, in order to empty the installation.
If spare electric components are needed please use original spare parts as these were chosen for an
optimum performance.
6. RESISTANCE REPLACEMENT
Turn off the differential switch.
•
Disconnect supply cable from main connectors.
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Extract the heater after loosening screws.
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Pull out the flow switch
•
Disconnect resistance cables from the neutral connectors (3 cables) and the three phases from the
•
contactor.
Get the resistances and the resistances casing.
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Unscrew the resistances from its casing and replace by new ones (it is recommended to change the O-
•
ring too).
Follow the instructions backward for assembling the heater.
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mm2 (mín).
1,5 mm2
1,5 mm2
1,5 mm2
2,5 mm2
4 mm2
4
ENGLISH